'////////////////////////////////////  ((((((()))))))  \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\

'  ScienSolar v. 1.52 MAIN MODULE 1. Updated 16-11-2024

' Features of the 1.52 version:
' New procedure CheckIfProjectExists() has been added with the following main functions:
' 1. Check all VBA modules, count how many projects there are and set the number of the last project.
' 2. Automatically updates the project list in the CONFIG sheet.
' 3. Delete from the list the projects after the last one that do not have code.
' 4. Mark the projects that are in the middle and have no code.
' 5. Select all this code, copy it and replace the previous code from Module1 in the VBA Editor with this code. 
'    Before replacing, verify that the old code is titled with MAIN MODULE 1. Press Reset on the spreadsheet.

'////////////////////////////////////  ((((((()))))))  \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\

' ScienSolar package for modeling physics and mathematics in MS Excel (tested on MS Excel 2013-2019 for Windows and Mac).
' The package is distributed in five text files and must be integrated into an Excel file.
' This package is protected by copyright law. © PhD Ariel R. Becerra B., 2022.
' By downloading the package you agree to the terms and conditions under the license GNU General Public License v.3.0 (https://www.gnu.org/licenses/gpl-3.0.html).
' You may use the ScienSolar package for free only under the terms of this license.
' For modeling, you do not need to program in VBA, it is enough with the Excel functions.
' TO MAKE IT WORK:
' 1. In a new Excel file, open the VBA Editor (Alt + F11 in Windows or Fn + Option + F11 in macOS).
' 2. In the VBAProject insert modules. Add six modules.
' 3. Copy and paste all the ScienSolar package code into the modules (the content of each file into a different module).
' 4. Add a button in a new sheet. To do this, in Excel, go to the DEVELOPER tab and in the Controls group click Insert a Button.
' 5. Click a location on the worksheet to place the button.
' 6. Assign the NewSheet macro to the button.
' 7. Click the button to start a new project.
' 8. To load a sample project, select it from the list and click the +Vector button.
' 9. Save the file in your desired folder, save it as Macro-Enabled Workbook (*. xlsm).
' 10.  Some projects use objects (3D objects, formulas) found in the 3D Models spreadsheet. This spreadsheet can be downloaded and moved to this workbook (if not present).
' 11.Visit www.sciensolar.com to download updates and documentation.

'////////////////////////////////////  ((((((()))))))  \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\

''Set variables
        Dim Y_abs As Single ' Excel horizontal point of origin of XYZ
        Dim Z_abs As Single ' Excel vertical point of origin of XYZ
        Dim A As Double ' Rotation angle about X
        Dim B As Double ' Rotation angle about Y
        Dim c As Double ' Rotation angle about Z
        Dim L As Double ' Axis lenght
        Dim Lx As Double 'The x component of a vector (that is, the value in cell A12 for the first vector)
        Dim Ly As Double 'The y component of a vector (that is, the value in cell B12 for the first vector)
        Dim Lz As Double 'The z component of a vector (that is, the value in cell C12 for the first vector)
        Dim Lox As Double 'The initial position in x of a vector (that is, the value in cell A10 for the first vector)
        Dim Loy As Double 'The initial position in y of a vector (that is, the value in cell A10 for the first vector)
        Dim Loz As Double 'The initial position in z of a vector (that is, the value in cell A10 for the first vector)
        Dim i As Double 'updated 07-2024
        
'Definition of general units of measurement
        Dim PatronW As Double ' The width of a cell will be taken as measure patron for other objects
        Dim PatronH As Double ' The height of a cell will be taken as measure patron for other objects
        Dim PatronT As Double  ' The top of a cell will be taken as measure patron for other objects
Sub Init()
'© 2022 A Becerra. ScienSolar.com
' Procedure aim: Create a new sheet with the ScienSolar interface.
' Segment Init-01. Command to avoid updating the sheet during execution.
        Application.ScreenUpdating = False
        ActiveWindow.DisplayGridlines = False
        Call CheckIfProjectExists
        
'Segment Init-02. Define coordinates relative to INICIO. The variables m and n relative to the initial position of the control board are introduced.
        Dim fila As Range ' This name will be a reference in the CONFIG sheet
        Dim m As Integer ' This is a reference number for starting point of rows in ScienSolar
        Dim n As Integer ' This is a reference number for starting point of columns in ScienSolar
        Set fila = ActiveSheet.Cells.Find(What:="INICIO")
        m = fila.Offset(1, 0).Row
        n = fila.Offset(1, 1).Column
        
'Segment Init-03. Define coordinates relative to LANGUAGE. Added 03.2024.
        Set fila = Sheets("CONFIG").Cells.Find(What:="(LENGUAJE)")
        If ActiveSheet.Cells(m - 1, n + 18).Value = "" Then
           ActiveSheet.Cells(m - 1, n + 18).Value = Sheets("CONFIG").Cells(fila.Row + 1, fila.Column).Value
        End If
        Sheets("CONFIG").Cells(fila.Row + 1, fila.Column).Value = ActiveSheet.Cells(m - 1, n + 18).Value
        Set fila = Nothing
        
'Segment Init-04. Clean the worksheet
        Cells.Delete
        DeleteObjects (8)
        DeleteObjects (17)
        
'Segment Init-05. Establish a general unit of length measurement within the sheet:
        PatronW = ActiveSheet.Cells(1, 1).Width
        PatronH = ActiveSheet.Cells(1, 2).Height
        
'Segment Init-06. Vector cell parameters and project title:
        Cells(m + 1, n + 1).Select
        With Selection
           .Value = "A"
           .Font.Bold = True
           .HorizontalAlignment = xlCenter
           .VerticalAlignment = xlBottom
        End With
        
'Segment Init-07. Add a project list:
        Dim lista As Range
        Set lista = Sheets("CONFIG").Cells.Find(What:="(LISTA)")
        m2 = lista.Offset(2, 0).Row
        n2 = lista.Column
        Set lista = Nothing
        ActiveSheet.DropDowns.Add(PatronW * (n + 14), PatronH * (m + 1), PatronW * 3, PatronH).Select
        With Selection
           .name = "List1"
           .LinkedCell = Cells(m + 1, n - 1).Address
           .DropDownLines = 20
           .Display3DShading = True
           .AddItem " " ' valor 1
            i = 0
            Do While Sheets("CONFIG").Cells(m2 + i, n2) <> ""
                .AddItem Sheets("CONFIG").Cells(m2 + i, n2 + 1).Value & " " & Sheets("CONFIG").Cells(m2 + i, n2).Value
                i = i + 1
            Loop
        End With
          
'Segment Init-08. Add a language list. 03.2024:
        Set lista = Sheets("CONFIG").Cells.Find(What:="LENGUAJE")
        m2 = lista.Offset(2, 0).Row
        n2 = lista.Column
        Set lista = Nothing
        ActiveSheet.DropDowns.Add(PatronW * (n + 17), PatronH * (m - 2), PatronW + 15, PatronH + 3).Select
        With Selection
           .name = "LangList"
           .LinkedCell = Cells(m - 1, n + 18).Address
           .DropDownLines = 20
           .Display3DShading = True
            i = 0
            Do While Sheets("CONFIG").Cells(m2 + i, n2) <> ""
                .AddItem Sheets("CONFIG").Cells(m2 + i, n2).Value
                i = i + 1
            Loop
        End With
        ActiveSheet.Cells(m - 1, n + 18).Value = Sheets("CONFIG").Cells(m2 - 1, n2).Value
        
'Segment Init-09. Add buttons to modify the view angles of the coordinate system:
        ActiveSheet.Spinners.Add(PatronW * (n + 4), PatronH * (m), PatronW / 4, PatronH).Select
        With Selection
           .Value = 0
           .SmallChange = 1
           .LinkedCell = Cells(m + 1, n + 5).Address
           .Display3DShading = True
        End With
        Selection.OnAction = "Rotate"
        ActiveSheet.Spinners.Add(PatronW * (n + 4), PatronH * (m + 1), PatronW / 4, PatronH).Select
        With Selection
           .Value = 0
           .SmallChange = 1
           .LinkedCell = Cells(m + 2, n + 5).Address
           .Display3DShading = True
        End With
        Selection.OnAction = "Rotate"
        ActiveSheet.Spinners.Add(PatronW * (n + 4), PatronH * (m + 2), PatronW / 4, PatronH).Select
        With Selection
           .Value = 0
           .SmallChange = 1
           .LinkedCell = Cells(m + 3, n + 5).Address
           .Display3DShading = True
        End With
        Selection.OnAction = "Rotate"
        
'Segment Init-10. Button to hide/show the control panel and help
        ActiveSheet.Buttons.Add(PatronW * (n + 15 / 2), PatronH * (m - 2), PatronW * 0.5, PatronH).Select
        Selection.name = Cells(m - 2, n - 1).Column
        Selection.OnAction = "ShowHideMenu"
        Selection.Characters.Text = ChrW(9664)
        With Selection.Characters(Start:=1, Length:=3).Font
           .name = "Calibri"
           .FontStyle = "Normal"
           .Size = 11
           .ColorIndex = 1
        End With
        ActiveSheet.Buttons.Add(PatronW * (n + 17 / 2), PatronH * (m - 2), PatronW / 2, PatronH).Select
        Selection.OnAction = "HELP"
        Selection.Characters.Text = " ? "
        With Selection.Characters(Start:=1, Length:=3).Font
           .name = "Calibri"
           .FontStyle = "Normal"
           .Size = 15
           .ColorIndex = 1
        End With
        
'Segment Init-11. General control panel buttons. See Characters.Text to identify the button.
        ActiveSheet.Buttons.Add(PatronW * (n + 2), PatronH * (m + 1), PatronW / 2, PatronH).Select
        Selection.name = "AutoSc"
        Selection.OnAction = "AutoScale"
        Selection.Characters.Text = "Auto"
        With Selection.Characters(Start:=1, Length:=3).Font
           .name = "Calibri"
           .FontStyle = "Normal"
           .Size = 11
        End With
        ActiveSheet.Buttons.Add(PatronW * (n - 1), PatronH * (m - 1), PatronW / 2, PatronH).Select
        Selection.name = "AddButt"
        Selection.OnAction = "AddObject"
        Selection.Characters.Text = "+ OBJ"
        With Selection.Characters(Start:=1, Length:=3).Font
           .name = "Calibri"
           .FontStyle = "Normal"
           .Size = 11
        End With
        ActiveSheet.Buttons.Add(PatronW * (n), PatronH * (m - 1), PatronW / 2, PatronH).Select
        Selection.name = "DelButt"
        Selection.OnAction = "AddObject"
        Selection.Characters.Text = "- OBJ"
        With Selection.Characters(Start:=1, Length:=3).Font
           .name = "Calibri"
           .FontStyle = "Normal"
           .Size = 11
        End With
        ActiveSheet.Buttons.Add(PatronW * (n + 7 / 2), PatronH * (m - 1), PatronW / 2, PatronH).Select
        Selection.OnAction = "rotate"
        Selection.Characters.Text = ""
        With Selection.Characters(Start:=1, Length:=3).Font
           .name = "Calibri"
           .FontStyle = "Normal"
           .Size = 11
        End With
        ActiveSheet.Buttons.Add(PatronW * (n + 4), PatronH * (m - 2), PatronW / 2, PatronH).Select
        Selection.OnAction = "rotate_XZY"
        Selection.Characters.Text = "XYZ"
        With Selection.Characters(Start:=1, Length:=3).Font
           .name = "Calibri"
           .FontStyle = "Normal"
           .Size = 11
        End With
        ActiveSheet.Buttons.Add(PatronW * (n + 4), PatronH * (m - 1), PatronW / 2, PatronH).Select
        Selection.OnAction = "rotate_XY"
        Selection.Characters.Text = "XY"
        With Selection.Characters(Start:=1, Length:=2).Font
           .name = "Calibri"
           .FontStyle = "Normal"
           .Size = 11
        End With
        ActiveSheet.Buttons.Add(PatronW * (n + 9 / 2), PatronH * (m - 1), PatronW / 2, PatronH).Select
        Selection.OnAction = "rotate_XZ"
        Selection.Characters.Text = "XZ"
        With Selection.Characters(Start:=1, Length:=2).Font
           .name = "Calibri"
           .FontStyle = "Normal"
           .Size = 11
        End With
        ActiveSheet.Buttons.Add(PatronW * (n + 9 / 2), PatronH * (m - 2), PatronW / 2, PatronH).Select
        Selection.OnAction = "rotate_YZ"
        Selection.Characters.Text = "YZ"
        With Selection.Characters(Start:=1, Length:=2).Font
           .name = "Calibri"
           .FontStyle = "Normal"
           .Size = 11
        End With
        ActiveSheet.Buttons.Add(PatronW * (n + 7 / 2), PatronH * (m), PatronW / 2, PatronH).Select
        Selection.OnAction = "rotate_A"
        Selection.Characters.Text = ChrW(8811) & " A"
        With Selection.Characters(Start:=1, Length:=1).Font
           .name = "Calibri"
           .FontStyle = "Normal"
           .Size = 11
        End With
        ActiveSheet.Buttons.Add(PatronW * (n + 7 / 2), PatronH * (m + 1), PatronW / 2, PatronH).Select
        Selection.OnAction = "rotate_B"
        Selection.Characters.Text = ChrW(8811) & " B"
        With Selection.Characters(Start:=1, Length:=1).Font
           .name = "Calibri"
           .FontStyle = "Normal"
           .Size = 11
        End With
        ActiveSheet.Buttons.Add(PatronW * (n + 7 / 2), PatronH * (m + 2), PatronW / 2, PatronH).Select
        Selection.OnAction = "rotate_C"
        Selection.Characters.Text = ChrW(8811) & " C"
        With Selection.Characters(Start:=1, Length:=1).Font
           .name = "Calibri"
           .FontStyle = "Normal"
           .Size = 11
        End With
        ActiveSheet.Buttons.Add(PatronW * (n + 16), PatronH * (m - 2), PatronW, PatronH + 3).Select
        Selection.OnAction = "CleanSheet"
        Selection.Characters.Text = Sheets("CONFIG").Range("B2").Value '"Restablecer"
        With Selection.Characters(Start:=1, Length:=11).Font
           .name = "Calibri"
           .FontStyle = "Normal"
           .Size = 11
        End With
        ActiveSheet.Buttons.Add(PatronW * (n + 13), PatronH * (m + 1), PatronW, PatronH).Select
        Selection.OnAction = "NewSheet"
        Selection.Characters.Text = Sheets("CONFIG").Range("C2").Value
        With Selection.Characters(Start:=1, Length:=11).Font
           .name = "Calibri"
           .FontStyle = "Normal"
           .Size = 11
        End With
        ActiveSheet.Buttons.Add(PatronW * (n + 11), PatronH * (m + 1), PatronW, PatronH).Select
        Selection.name = "NewVector"
        Selection.OnAction = "AddNewVector"
        Selection.Characters.Text = Sheets("CONFIG").Range("J2").Value
        With Selection.Characters(Start:=1, Length:=11).Font
           .name = "Calibri"
           .FontStyle = "Normal"
           .Size = 11
        End With
        ActiveSheet.Buttons.Add(PatronW * (n + 12), PatronH * (m + 1), PatronW / 3, PatronH).Select
        Selection.name = "NewVectorMinus"
        Selection.OnAction = "AddObject"
        Selection.Characters.Text = " - "
        With Selection.Characters(Start:=1, Length:=11).Font
           .name = "Calibri"
           .FontStyle = "Normal"
           .Size = 11
        End With
        ActiveSheet.Buttons.Add(PatronW * (n - 2), PatronH * (m - 2), PatronW, PatronH).Select
        Selection.name = "ENTIRE"
        Selection.OnAction = "AddObject"
        Selection.Characters.Text = Sheets("CONFIG").Range("K2").Value
        With Selection.Characters(Start:=1, Length:=11).Font
           .name = "Calibri"
           .FontStyle = "Normal"
           .Size = 11
        End With
        ActiveSheet.Buttons.Add(PatronW * (n + 7 / 2), PatronH * (m - 2), PatronW / 2, PatronH).Select
        Selection.OnAction = "XYZNeg"
        Selection.Characters.Text = "-xyz"
        With Selection.Characters(Start:=1, Length:=3).Font
           .name = "Calibri"
           .FontStyle = "Normal"
           .Size = 11
        End With
        ActiveSheet.Buttons.Add(PatronW * (n + 3), PatronH * (m - 2), PatronW * 0.5, PatronH).Select
        Selection.OnAction = "BlackWhiteDesk"
        Selection.Characters.Text = "B/W"
        With Selection.Characters(Start:=1, Length:=11).Font
           .name = "Calibri"
           .FontStyle = "Normal"
           .Size = 11
        End With
        ActiveSheet.Buttons.Add(PatronW * (n + 17), PatronH * (m + 1), PatronW, PatronH).Select
        Selection.name = "AddVector1"
        Selection.OnAction = "AddNewVector"
        Selection.Characters.Text = "+  Vector"
        With Selection.Characters(Start:=1, Length:=11).Font
           .name = "Calibri"
           .FontStyle = "Normal"
           .Size = 11
        End With
        ActiveSheet.Buttons.Add(PatronW * (n + 7), PatronH * (m - 1), PatronW, PatronH).Select
        Selection.name = "ChangeParFrw"
        Selection.OnAction = "ChangeParameter"
        Selection.Characters.Text = ChrW(8811) & Sheets("CONFIG").Range("J3").Value
        With Selection.Characters(Start:=1, Length:=11).Font
           .name = "Calibri"
           .FontStyle = "Normal"
           .Size = 11
        End With
        ActiveSheet.Buttons.Add(PatronW * (n + 7), PatronH * (m), PatronW, PatronH).Select
        Selection.name = "ChangeParBack"
        Selection.OnAction = "ChangeParameter"
        Selection.Characters.Text = "<< " & Sheets("CONFIG").Range("J3").Value
        With Selection.Characters(Start:=1, Length:=11).Font
           .name = "Calibri"
           .FontStyle = "Normal"
           .Size = 11
        End With
        ActiveSheet.Buttons.Add(PatronW * (n + 9), PatronH * (m + 1), PatronW * 0.5, PatronH).Select
        Selection.OnAction = "rotate_Single"
        Selection.Characters.Text = "->"
        With Selection.Characters(Start:=1, Length:=11).Font
           .name = "Calibri"
           .FontStyle = "Normal"
           .Size = 11
        End With
        ActiveSheet.Buttons.Add(PatronW * (n + 7.5), PatronH * (m + 1), PatronW * 0.5, PatronH).Select
        Selection.OnAction = "rotate_SingleBack"
        Selection.Characters.Text = "<-"
        With Selection.Characters(Start:=1, Length:=11).Font
           .name = "Calibri"
           .FontStyle = "Normal"
           .Size = 11
        End With
        ActiveSheet.Buttons.Add(PatronW * (n + 9.5), PatronH * (m + 1), PatronW * 0.5, PatronH).Select
        Selection.OnAction = "rotate_End"
        Selection.Characters.Text = "-->|"
        With Selection.Characters(Start:=1, Length:=11).Font
           .name = "Calibri"
           .FontStyle = "Normal"
           .Size = 11
        End With
        ActiveSheet.Buttons.Add(PatronW * (n + 8), PatronH * (m + 1), PatronW, PatronH).Select
        Selection.OnAction = "rotate_n"
        Selection.Characters.Text = ChrW(8811) & Sheets("CONFIG").Range("K5").Value
        With Selection.Characters(Start:=1, Length:=11).Font
           .name = "Calibri"
           .FontStyle = "Normal"
           .Size = 11
        End With
        ActiveSheet.Buttons.Add(PatronW * (n + 9), PatronH * (m - 2), PatronW * 2, PatronH).Select
        Selection.OnAction = "About"
        Selection.Characters.Text = "ScienSolar info"
        With Selection.Characters(Start:=1, Length:=11).Font
           .name = "Calibri"
           .FontStyle = "Normal"
           .Size = 11
        End With
        ActiveSheet.Buttons.Add(PatronW * (n + 12), PatronH * (m - 2), PatronW * 2, PatronH).Select
        Selection.OnAction = "ManualOnline"
        Selection.Characters.Text = "Manual"
        With Selection.Characters(Start:=1, Length:=11).Font
           .name = "Calibri"
           .FontStyle = "Normal"
           .Size = 11
        End With
        ActiveSheet.Buttons.Add(PatronW * (n + 7), PatronH * (m + 1), PatronW * 0.5, PatronH).Select
        Selection.OnAction = "Reset"
        Selection.Characters.Text = "|<--"
        With Selection.Characters(Start:=1, Length:=11).Font
           .name = "Calibri"
           .FontStyle = "Normal"
           .Size = 11
        End With
        ActiveSheet.Buttons.Add(PatronW * (n - 2) + 1, PatronH * (m), PatronW, PatronH).Select
        Selection.OnAction = "CreateCode"
        Selection.Characters.Text = Sheets("CONFIG").Range("B3").Value
        With Selection.Characters(Start:=1, Length:=11).Font
           .name = "Calibri"
           .FontStyle = "Normal"
           .Size = 11
        End With
        
'Segment Init-12. Give a format to the cells in the spreadsheet:
        Cells.Select
        With Selection.Interior
           .PatternColorIndex = xlAutomatic
           .ThemeColor = xlThemeColorLight1
           .TintAndShade = 0
           .PatternTintAndShade = 0
        End With
        With Selection.Font
           .ThemeColor = xlThemeColorDark1
           .TintAndShade = 0
        End With
        Range("A1:K1").Select
        With Selection.Borders(xlEdgeBottom)
           .LineStyle = xlContinuous
           .ThemeColor = 1
           .TintAndShade = -0.349986266670736
           .Weight = xlThick
        End With
        Range("K2:K5").Select
        With Selection.Borders(xlEdgeTop)
           .LineStyle = xlContinuous
           .ThemeColor = 1
           .TintAndShade = -0.349986266670736
           .Weight = xlThick
        End With
        With Selection.Borders(xlEdgeRight)
           .LineStyle = xlContinuous
           .ThemeColor = 1
           .TintAndShade = -0.349986266670736
           .Weight = xlThick
        End With
        Range("H5:K5").Select
        With Selection.Borders(xlEdgeBottom)
           .LineStyle = xlContinuous
           .ThemeColor = 1
           .TintAndShade = -0.349986266670736
           .Weight = xlThick
        End With
        With Selection.Borders(xlEdgeRight)
           .LineStyle = xlContinuous
           .ThemeColor = 1
           .TintAndShade = -0.349986266670736
           .Weight = xlThick
        End With
        Range("G6").Select
        With Selection.Borders(xlEdgeRight)
           .LineStyle = xlContinuous
           .ThemeColor = 1
           .TintAndShade = -0.349986266670736
           .Weight = xlThick
        End With
        Range("D6:G6").Select
        With Selection.Borders(xlEdgeBottom)
           .LineStyle = xlContinuous
           .ThemeColor = 1
           .TintAndShade = -0.349986266670736
           .Weight = xlThick
        End With
        With Selection.Borders(xlEdgeRight)
           .LineStyle = xlContinuous
           .ThemeColor = 1
           .TintAndShade = -0.349986266670736
           .Weight = xlThick
        End With
        Range("C5:C6").Select
        With Selection.Borders(xlEdgeRight)
           .LineStyle = xlContinuous
           .ThemeColor = 1
           .TintAndShade = -0.349986266670736
           .Weight = xlThick
        End With
        Range("A4:C4").Select
        With Selection.Borders(xlEdgeBottom)
           .LineStyle = xlContinuous
           .ThemeColor = 1
           .TintAndShade = -0.349986266670736
           .Weight = xlThick
        End With
        Range("A2:K4").Select
        With Selection.Interior
           .Pattern = xlSolid
           .PatternColorIndex = xlAutomatic
           .ThemeColor = xlThemeColorDark2
           .TintAndShade = 0
           .PatternTintAndShade = 0
        End With
        With Selection.Font
           .ThemeColor = xlThemeColorLight1
           .TintAndShade = 0
        End With
        Range("D5:J5").Select
        With Selection.Interior
           .Pattern = xlSolid
           .PatternColorIndex = xlAutomatic
           .ThemeColor = xlThemeColorDark2
           .TintAndShade = 0
           .PatternTintAndShade = 0
        End With
        With Selection.Font
           .ThemeColor = xlThemeColorLight1
           .TintAndShade = 0
        End With
        Range("D6:G6").Select
        With Selection.Interior
           .Pattern = xlSolid
           .PatternColorIndex = xlAutomatic
           .ThemeColor = xlThemeColorDark2
           .TintAndShade = 0
           .PatternTintAndShade = 0
        End With
        With Selection.Font
           .ThemeColor = xlThemeColorLight1
           .TintAndShade = 0
        End With
        
        Cells(m + 1, n + 9).Select
        With Selection.Interior
           .Pattern = xlSolid
           .PatternColorIndex = xlAutomatic
           .ThemeColor = xlThemeColorDark1
           .TintAndShade = -0.249977111117893
           .PatternTintAndShade = 0
        End With
        With Selection.Font
           .Size = 9
           .Color = -4165632
           .TintAndShade = 0
        End With
        ActiveCell.FormulaR1C1 = "S" & "c" & "i" & "e" & "n" _
        & "S" & "o" & "l" & "a" & "r" & " v" & 1 & ".52"
        Cells(m + 4, n + 2).Select
        With Selection.Font
           .Size = 12
           .Color = -4165632
           .TintAndShade = 0
           '.Bold = True
           .Italic = True
        End With
        Cells(m, n + 4).Select  'Label text color
        With Selection.Interior
           .Pattern = xlSolid
           .PatternColorIndex = xlAutomatic
           .ThemeColor = xlThemeColorLight2
           .TintAndShade = 0.399975585192419
           .PatternTintAndShade = 0
        End With
        Cells(m + 1, n + 4).Select ' X axis color
        With Selection.Interior
           .Pattern = xlSolid
           .PatternColorIndex = xlAutomatic
           .ThemeColor = xlThemeColorLight2
           .TintAndShade = 0.399975585192419
           .PatternTintAndShade = 0
        End With
        Cells(m + 2, n + 4).Select ' Y axis color
        With Selection.Interior
           .Pattern = xlSolid
           .PatternColorIndex = xlAutomatic
           .ThemeColor = xlThemeColorLight2
           .TintAndShade = 0.399975585192419
           .PatternTintAndShade = 0
        End With
        Cells(m + 3, n + 4).Select ' Z axis color
        With Selection.Interior
           .Pattern = xlSolid
           .PatternColorIndex = xlAutomatic
           .ThemeColor = xlThemeColorLight2
           .TintAndShade = 0.399975585192419
           .PatternTintAndShade = 0
        End With
        
'Segment Init-13.Set initial parameters for the control panel:
        Cells(m - 1, n - 1).Value = "INICIO"
        Cells(m - 1, n + 3).FormulaR1C1 = "=CONFIG!R2C4"
        Cells(m - 1, n + 6).FormulaR1C1 = "=CONFIG!R2C8"
        Cells(m - 1, n + 8).Value = 1
        Cells(m, n + 2).FormulaR1C1 = "=CONFIG!R3C4"
        Cells(m, n + 3).FormulaR1C1 = "=CONFIG!R3C5"
        Cells(m, n + 6).FormulaR1C1 = "=CONFIG!R3C8"
        Cells(m, n + 7).FormulaR1C1 = "=CONFIG!R3C9"
        Cells(m + 1, n + 2).FormulaR1C1 = "=CONFIG!R4C4"
        Cells(m + 1, n + 3).FormulaR1C1 = "=CONFIG!R4C5"
        Cells(m + 1, n + 6).FormulaR1C1 = "=CONFIG!R4C8"
        Cells(m + 1, n + 4).FormulaR1C1 = "=CONFIG!R4C6"
        Cells(m + 1, n + 5).FormulaR1C1 = "=CONFIG!R4C7"
        Cells(m + 1, n + 7).FormulaR1C1 = "=CONFIG!R4C9"
        Cells(m + 2, n + 2).FormulaR1C1 = "=CONFIG!R5C4"
        Cells(m + 2, n + 3).FormulaR1C1 = "=CONFIG!R5C5"
        Cells(m + 2, n + 4).FormulaR1C1 = "=CONFIG!R5C6"
        Cells(m + 2, n + 5).FormulaR1C1 = "=CONFIG!R5C7"
        Cells(m + 2, n + 6).FormulaR1C1 = "=CONFIG!R5C8"
        Cells(m + 2, n + 7).FormulaR1C1 = "=CONFIG!R5C9"
        Cells(m + 3, n + 2).FormulaR1C1 = "=CONFIG!R6C4"
        Cells(m + 3, n + 3).FormulaR1C1 = "=CONFIG!R6C5"
        Cells(m + 3, n + 4).FormulaR1C1 = "=CONFIG!R6C6"
        Cells(m + 3, n + 5).FormulaR1C1 = "=CONFIG!R6C7"
        Cells(m - 1, n + 2).Value = 2
        
'Segment Init-14. Restrict values to the INICIO cell:
        Range(Cells(m - 1, n - 1), Cells(m - 1, n - 1)).Select
        With Selection.Validation
           .Delete
           .Add Type:=xlValidateCustom, AlertStyle:=xlValidAlertStop, Operator:=xlBetween, Formula1:="INICIO"
           .IgnoreBlank = True
           .InCellDropdown = True
           .InputTitle = "INICIO"
           .ErrorTitle = ""
           .InputMessage = "Only value INICIO is allowed."
           .ErrorMessage = "Only value INICIO is allowed."
           .ShowInput = True
           .ShowError = True
        End With
           
'Segment Init-15. Introducing a help comment
        ActiveSheet.Cells(m, n + 9).Value = "HELP"
        ActiveSheet.Cells(m, n + 9).AddComment
        ActiveSheet.Cells(m, n + 9).Comment.Visible = False
        ActiveSheet.Cells(m, n + 9).Comment.Shape.Width = 300
        ActiveSheet.Cells(m, n + 9).Comment.Shape.Height = 300
        ActiveSheet.Cells(m, n + 9).Comment.Text Text:= _
        "HELP Comment:" _
            & Chr(10) & _
        "1. To create new projects, press the +Vector button without selecting any project in the project list." _
            & Chr(10) & _
        "2. To load an existing project, select a project from the list and then press +Vector" _
            & Chr(10) & _
        "3. To export a new project, press the Get Code button. The code will be saved on your PC in the same directory where this file is located." _
            & Chr(10) & Chr(10) & _
        "If necessary, use this comment to create your own HELP comment for your project. To do this, simply replace this text with your own (Right Click, Edit Comment) and avoid special characters." _
            & Chr(10) & "After pressing Get Code, your comment will be updated and saved in the same txt file as your project and will be uploaded after the project appears in ScienSolar." _
            & "To include the new project in ScienSolar, perform the following steps:" _
            & Chr(10) & _
        "a) Open the txt file where the project was saved; " & _
        "b) copy all the contents of the file and paste it in the VBA Editor of the Excel file ScienSolar; " & _
        "c) add the project name and number to the list on the CONFIG sheet; " & _
        "d) Verify that the number is correlative and that it agrees with the project header number, if not modify it in the header or in the list as necessary." _
            & Chr(10) & _
        "Right click to delete or edit this comment." _
            & Chr(10) & Chr(10) & _
        "For documentation on ScienSolar, please visit www.sciensolar.com. ScienSolar was designed for 3D physics modeling in MS Excel." & _
        "It is normal that for some projects it takes time to load it in the sheet, it depends on the number of objects in your project and the performance of your PC."
        
        Cells(m + 1, n + 1).Select
    Application.ScreenUpdating = True
End Sub

Sub XYZ(ByVal m, n As Integer)
'© 2022 A Becerra. ScienSolar.com
'Segment XYZ-01. Define the point of the coordinate origin
    
    If Cells(m - 1, n + 4).Value = 1 Then
        Call XYZOpposite(m, n)
    End If
    
    If IsNumeric(ActiveSheet.Cells(m, n + 3).Value) Then
        Y_abs = ActiveSheet.Cells(m, n + 3).Value
    Else
        ActiveSheet.Cells(m, n + 3).Value = 850
        Y_abs = 850
    End If
    
    If IsNumeric(ActiveSheet.Cells(m + 1, n + 3).Value) Then
        Z_abs = ActiveSheet.Cells(m + 1, n + 3).Value
    Else
        ActiveSheet.Cells(m + 1, n + 3).Value = 400
        Z_abs = 400
    End If
    
     If IsNumeric(ActiveSheet.Cells(m + 3, n + 3).Value) Then
         L = ActiveSheet.Cells(m + 3, n + 3).Value  'Axles length
    Else
        ActiveSheet.Cells(m + 3, n + 3).Value = 200
        L = 200
    End If

'Segment XYZ-02. Define the angles of rotation of the axes:
    A = -ActiveSheet.Cells(m + 1, n + 5).Value * WorksheetFunction.Pi / 180   'angulo alrededor de X en radianes phi
    B = ActiveSheet.Cells(m + 2, n + 5).Value * WorksheetFunction.Pi / 180   'angulo alrededor de Y en radianes theta
    c = -ActiveSheet.Cells(m + 3, n + 5).Value * WorksheetFunction.Pi / 180   'angulo alrededor de Z en radianes alpha
   
'Segment XYZ-03. Define the variables for the dimensions and position of the axes in the spreadsheet
    Dim x_width As Double
    Dim y_width As Double
    Dim z_width As Double
    Dim x_height As Double
    Dim y_height As Double
    Dim z_height As Double
    Dim T_top
    Dim T_left
    Dim T_name
    Dim T_color As Double
    T_color = Cells(m, n + 4).Interior.Color

'Segment XYZ-04. Set the width and height of the Excel shapes that will represent the axes, according to the rotation matrix
    x_width = L * (Cos(A) * Sin(c) + Sin(A) * Cos(c) * Sin(B))
    x_height = L * (Sin(A) * Sin(c) - Cos(A) * Cos(c) * Sin(B))

    y_width = L * (Cos(A) * Cos(c) + Sin(A) * Sin(c) * Sin(B))
    y_height = L * (Sin(A) * Cos(c) + Cos(A) * Sin(c) * Sin(B))

    z_width = -L * Sin(A) * Cos(B)
    z_height = L * Cos(A) * Cos(B)

'Segment XYZ-05. Delete old labels and axes.
    If CheckExists("EjeX") = True Then
         ActiveSheet.Shapes("EjeX").Delete
    End If
    If CheckExists("EjeY") = True Then
         ActiveSheet.Shapes("EjeY").Delete
    End If
    If CheckExists("EjeZ") = True Then
         ActiveSheet.Shapes("EjeZ").Delete
    End If

'Segment XYZ-06. Delete other old objects
    DeleteObjects (17) ' 17 - for text boxes (labels), 1 -  for axes and vectors, 5- for free forms
    If CheckExists("campoHelp") = True Then '
        ActiveSheet.Shapes("campoHelp").Delete
    End If

'Segment XYZ-07. Create new axes as Excel shapes
    Dim Eje As Object
    Set Eje = ActiveSheet.Shapes.AddShape(msoShapeLineInverse, 787.2, 301.8, 1047, 304.2)
    Eje.name = "EjeX"
    Set Eje = ActiveSheet.Shapes.AddShape(msoShapeLineInverse, 787.2, 301.8, 1047, 304.2)
    Eje.name = "EjeY"
    Set Eje = ActiveSheet.Shapes.AddShape(msoShapeLineInverse, 787.2, 301.8, 1047, 304.2)
    Eje.name = "EjeZ"
    Set Eje = Nothing

'Segment XYZ-08. Correct the dimensions of the shapes that represent the X axis, due to their variation when rotating them.
    With ActiveSheet.Shapes("EjeX")
        If x_width < "0" Then
            .Width = -x_width
            .Left = Y_abs + x_width
            T_left = .Left
        Else
            .Width = x_width
            .Left = Y_abs
            T_left = .Left + x_width
            .Flip msoFlipHorizontal
        End If
        If x_height < "0" Then
            .Height = -x_height
            .Top = Z_abs
            T_top = .Top - x_height
        Else
            .Height = x_height
            .Top = Z_abs - x_height
             T_top = .Top
             .Flip msoFlipVertical
        End If
        .Line.BeginArrowheadStyle = msoArrowheadTriangle
        .Line.ForeColor.RGB = Cells(m + 1, n + 4).Interior.Color '
    End With

'Segment XYZ-09. Create X axis label
    T_label = ActiveSheet.Cells(m + 1, n + 4).Value
    T_name = ActiveSheet.Cells(m + 1, n + 4).Value
    Call CreateLabel(T_left, T_top, 0, 50, T_color, T_name, T_label)

'Segment XYZ-10. Do the same procedure above for the other two axes and labels
    With ActiveSheet.Shapes("EjeY")
        If y_width < "0" Then
            .Width = -y_width
            .Left = Y_abs + y_width
            T_left = .Left
        Else
            .Width = y_width
            .Left = Y_abs
            T_left = .Left + y_width
            .Flip msoFlipHorizontal
        End If
        If y_height < "0" Then
            .Height = -y_height
            .Top = Z_abs
            T_top = .Top - y_height
        Else
            .Height = y_height
            .Top = Z_abs - y_height
            T_top = .Top
            .Flip msoFlipVertical
        End If
        .Line.BeginArrowheadStyle = msoArrowheadTriangle
        .Line.ForeColor.RGB = Cells(m + 2, n + 4).Interior.Color
    End With
    T_label = ActiveSheet.Cells(m + 2, n + 4).Value
    T_name = ActiveSheet.Cells(m + 2, n + 4).Value
    Call CreateLabel(T_left, T_top, 0, 50, T_color, T_name, T_label)

    With ActiveSheet.Shapes("EjeZ")
        If z_width < "0" Then
            .Width = -z_width
            .Flip msoFlipHorizontal
            .Left = Y_abs + z_width
            T_left = .Left
        Else
            .Width = z_width
            .Left = Y_abs
            T_left = .Left + z_width
        End If
        If z_height < "0" Then
            .Flip msoFlipVertical
            .Height = -z_height
            .Top = Z_abs
            T_top = .Top - z_height
        Else
            .Height = z_height
            .Top = Z_abs - z_height
            T_top = .Top
        End If
        .Line.EndArrowheadStyle = msoArrowheadTriangle
        .Line.ForeColor.RGB = Cells(m + 3, n + 4).Interior.Color
    End With
    T_label = ActiveSheet.Cells(m + 3, n + 4).Value
    T_name = ActiveSheet.Cells(m + 3, n + 4).Value
    Call CreateLabel(T_left, T_top, 0, 50, T_color, T_name, T_label)
    
End Sub
Sub XYZNeg()
' Segment-XYZNeg-01. Enable negative axes of the coordinate system
    Dim m As Integer
    Dim n As Integer
    Set fila = ActiveSheet.Cells.Find(What:="INICIO")
    m = fila.Offset(1, 0).Row
    n = fila.Offset(1, 1).Column
    Set fila = Nothing
    
    If Cells(m - 1, n + 4).Value = 1 Then
        Cells(m - 1, n + 4).Value = 0
        If CheckExists("EjeXo") = True Then
             ActiveSheet.Shapes("EjeXo").Delete
        End If
        If CheckExists("EjeYo") = True Then
             ActiveSheet.Shapes("EjeYo").Delete
        End If
        If CheckExists("EjeZo") = True Then
             ActiveSheet.Shapes("EjeZo").Delete
        End If
    Else
        Cells(m - 1, n + 4).Value = 1
    End If
    
'Segment-XYZNeg-02. Update spreadsheet
    Rotate
End Sub
Sub XYZOpposite(ByVal m, n As Integer)
'© 2022 A Becerra. ScienSolar.com
'Parameters of the negative axes
'Segment XYZOpposite-01. Define the point of the coordinate origin
    If IsNumeric(ActiveSheet.Cells(m, n + 3).Value) Then
        Y_abs = ActiveSheet.Cells(m, n + 3).Value
    Else
        ActiveSheet.Cells(m, n + 3).Value = 850
        Y_abs = 850
    End If
    
    If IsNumeric(ActiveSheet.Cells(m + 1, n + 3).Value) Then
        Z_abs = ActiveSheet.Cells(m + 1, n + 3).Value
    Else
        ActiveSheet.Cells(m + 1, n + 3).Value = 400
        Z_abs = 400
    End If
    
     If IsNumeric(ActiveSheet.Cells(m + 3, n + 3).Value) Then
         L = ActiveSheet.Cells(m + 3, n + 3).Value  'longitud de los ejes
    Else
        ActiveSheet.Cells(m + 3, n + 3).Value = 200
        L = 200
    End If

'Segment XYZOpposite-02. Define the angles of rotation of the axes:
    A = -ActiveSheet.Cells(m + 1, n + 5).Value * WorksheetFunction.Pi / 180   'angulo alrededor de X en radianes phi
    B = ActiveSheet.Cells(m + 2, n + 5).Value * WorksheetFunction.Pi / 180   'angulo alrededor de Y en radianes theta
    c = -ActiveSheet.Cells(m + 3, n + 5).Value * WorksheetFunction.Pi / 180   'angulo alrededor de Z en radianes alpha
   
'Segment XYZOpposite-03. Define the variables for the dimensions and position of the objects in the spreadsheet
    Dim x_width As Double
    Dim y_width As Double
    Dim z_width As Double
    Dim x_height As Double
    Dim y_height As Double
    Dim z_height As Double

'Segment XYZOpposite-04. Set the width and height of the Excel shapes that will represent the axes, according to the rotation matrix
    x_width = -L * (Cos(A) * Sin(c) + Sin(A) * Cos(c) * Sin(B))
    x_height = -L * (Sin(A) * Sin(c) - Cos(A) * Cos(c) * Sin(B))

    y_width = -L * (Cos(A) * Cos(c) + Sin(A) * Sin(c) * Sin(B))
    y_height = -L * (Sin(A) * Cos(c) + Cos(A) * Sin(c) * Sin(B))

    z_width = L * Sin(A) * Cos(B)
    z_height = -L * Cos(A) * Cos(B)

'Segment XYZOpposite-05. Delete old labels and axes.
    If CheckExists("EjeXo") = True Then
         ActiveSheet.Shapes("EjeXo").Delete
    End If
    If CheckExists("EjeYo") = True Then
         ActiveSheet.Shapes("EjeYo").Delete
    End If
    If CheckExists("EjeZo") = True Then
         ActiveSheet.Shapes("EjeZo").Delete
    End If

'Segment XYZOpposite-06. Create new axes as Excel shapes
    Dim Eje As Object
    Set Eje = ActiveSheet.Shapes.AddShape(msoShapeLineInverse, 787.2, 301.8, 1047, 304.2)
    Eje.name = "EjeXo"
    Set Eje = ActiveSheet.Shapes.AddShape(msoShapeLineInverse, 787.2, 301.8, 1047, 304.2)
    Eje.name = "EjeYo"
    Set Eje = ActiveSheet.Shapes.AddShape(msoShapeLineInverse, 787.2, 301.8, 1047, 304.2)
    Eje.name = "EjeZo"
    Set Eje = Nothing

'Segment XYZOpposite-07. Correct the dimensions of the shapes that represent the X axis, due to their variation when rotating them.
    With ActiveSheet.Shapes("EjeXo")
        If x_width < "0" Then
            .Width = -x_width
            .Left = Y_abs + x_width
            T_left = .Left
        Else
            .Width = x_width
            .Left = Y_abs
            T_left = .Left + x_width
            .Flip msoFlipHorizontal
        End If
        If x_height < "0" Then
            .Height = -x_height
            .Top = Z_abs
            T_top = .Top - x_height
        Else
            .Height = x_height
            .Top = Z_abs - x_height
             T_top = .Top
             .Flip msoFlipVertical
        End If
        .Line.Transparency = 0.3
        .Line.DashStyle = 6
        .Line.BeginArrowheadStyle = msoArrowheadTriangle
        .Line.ForeColor.RGB = Cells(m + 1, n + 4).Interior.Color '
    End With

'Segment XYZOpposite-08. Do the same procedure above for the other two negative axes
    With ActiveSheet.Shapes("EjeYo")
        If y_width < "0" Then
            .Width = -y_width
            .Left = Y_abs + y_width
            T_left = .Left
        Else
            .Width = y_width
            .Left = Y_abs
            T_left = .Left + y_width
            .Flip msoFlipHorizontal
        End If
        If y_height < "0" Then
            .Height = -y_height
            .Top = Z_abs
            T_top = .Top - y_height
        Else
            .Height = y_height
            .Top = Z_abs - y_height
            T_top = .Top
            .Flip msoFlipVertical
        End If
        .Line.Transparency = 0.3
        .Line.DashStyle = 6
        .Line.BeginArrowheadStyle = msoArrowheadTriangle
        .Line.ForeColor.RGB = Cells(m + 2, n + 4).Interior.Color
    End With

    With ActiveSheet.Shapes("EjeZo")
        If z_width < "0" Then
            .Width = -z_width
            .Flip msoFlipHorizontal
            .Left = Y_abs + z_width
            T_left = .Left
        Else
            .Width = z_width
            .Left = Y_abs
            T_left = .Left + z_width
        End If
        If z_height < "0" Then
            .Flip msoFlipVertical
            .Height = -z_height
            .Top = Z_abs
            T_top = .Top - z_height
        Else
            .Height = z_height
            .Top = Z_abs - z_height
            T_top = .Top
        End If
        .Line.Transparency = 0.3
        .Line.DashStyle = 6
        .Line.EndArrowheadStyle = msoArrowheadTriangle
        .Line.ForeColor.RGB = Cells(m + 3, n + 4).Interior.Color
    End With

End Sub

Sub Field(ByVal m, n As Integer)
'© 2022 A Becerra. ScienSolar.com
'Procedure to display three-dimensional fields in the spreadsheet

'Segment Field-01. Declaration of variables
    ActiveSheet.Range("K6").Value = "" ' ' Clean the message: some vector were underscaled.
    Dim T_color As Double  'Label text color
    Dim xS As Single ' Vector scale in the XYZ system
    Dim NLine As Double ' Variable for range in X coordinate
    Dim NLine2 As Double ' Variable for range in Y coordinate
    Dim NLine3 As Double 'Variable for range in Z coordinate
    Dim s As Integer ' This indicates the number of each vector in a fiel formula. If a field has 900 vectors on the sheet, s goes from 1 to 900
    T_color = Cells(m, n + 4).Interior.Color
    
    If IsNumeric(ActiveSheet.Cells(m + 2, n + 3).Value) Then
        xS = ActiveSheet.Cells(m + 2, n + 3).Value
    Else
        ActiveSheet.Cells(m + 2, n + 3).Value = 20
        xS = 20
    End If
     
'Segment Field-02. Do while there are vectors in the spreadsheet.
    Do While Cells(m + 3, n - 1).Value <> ""
    
'Segment Field-03. Clean old vectors in the spreadsheet
        If Cells(m + 5, n - 1).Value > 2000 Then ' If the number of vectors is >2000, they disappear instantly:
            Call DeleteObjects(1)
            Call DeleteObjects(30)
            Call XYZ(m, n)
        Else 'if not, they gradually disappear:
            i = 0
            For i = Cells(m + 10, n + 1).Value To Cells(m + 5, n - 1).Value ' deja un vector sin eliminar (el indicado en la celda)
                On Error Resume Next
                ActiveSheet.Shapes("campo" & Cells(m + 3, n - 1).Value & "_" & 1).Delete ' Updated Dec 2023
                ActiveSheet.Shapes("campo" & Cells(m + 3, n - 1).Value & "_" & i).Delete
            Next i
        End If
        
'Segment Field-04. Verifyif that the vector has 3D objects
        If Cells(m + 4, n).Value = 200 Then Cells(m + 5, n + 1).Value = 2 ' This property is to enable 3D Excel Models (stored in 3DModels spreadsheet)
        
'Segment Field-05. Display vectors in the XYZ system:
        If Cells(m + 3, n - 1).Value > 0 And Cells(m + 5, n + 1).Value <> 1 Then   ' These conditions apply to the vectors that will be displayed
            Dim cod As Integer ' Define the type of Excel shape that will represent the vector
            cod = Cells(m + 4, n).Value
            
'Segment Field-06. Output data to a table when simulating. If the cell value is zero, no data will be displayed
            If Cells(m + 10, n).Value > 0 And Cells(m + 11, n).Value > 0 Then
                Call DataOutput(m, n) ' Display data in a table.
            End If
            
'Segment Field-07. The following condition allows us to display a field function in a region of XYZ as a set of vectors.
            If ActiveSheet.Cells(m + 4, n + 1).Value <> "" Then ' If not empty, is a field; if empty is a single vector.
                If ActiveSheet.Cells(m + 4, n + 1).FormulaR1C1 = 1 Then
                    ActiveSheet.Cells(m + 4, n + 1).FormulaR1C1 = ""
                    GoTo sig
                End If
                If ActiveSheet.Cells(m + 4, n + 1).FormulaR1C1 = 0 Then
                    ActiveSheet.Cells(m + 4, n + 1).FormulaR1C1 = ""
                    GoTo sig
                End If
                NLine = 0 ' X feed step
                NLine2 = 10 ' Y feed step
                NLine3 = 10 ' Z feed step
                Dim Atemp As Double  'Temp variables
                Dim Btemp As Double
                Dim Ctemp As Double
                Dim x_0 As Double
                Dim y_0 As Double
                Dim z_0 As Double
                Dim Nline0x As Double  'X begin
                Dim Nline0y As Double  'Y begin
                Dim Nline0z As Double  'Z begin
                Dim Nlinex As Double   'X end
                Dim Nliney As Double  'Y end
                Dim Nlinez As Double  'Z end
                Dim Bulk ' calculo preliminar de cantidad de vectores
                Dim Response
                Dim msg
                Dim tfactor 'tiempo que demora el PC enponer un vector en la hoja
                Dim t As Single 'fijacion del tiempo
                Dim A As Variant
                Dim Centery As Double
                Dim Centerx As Double
                Dim Centerz As Double
                A = Array()
                'i = CDbl(i) ' convertir a Double
                Dim j As Double
                Dim k As Double
                x_0 = 0
                y_0 = 0
                z_0 = 0
                Atemp = 0
                Btemp = 0
                Ctemp = 0
                i = 0 ' feed in x
                j = 0 ' feed in  y
                k = 0 ' feed in  z
                s = 1
                
                'Modify the initial coordinate formulas.
                ActiveSheet.Cells(m + 7, n - 1).FormulaR1C1 = "=R[1]C"
                ActiveSheet.Cells(m + 7, n).FormulaR1C1 = "=R[1]C"
                ActiveSheet.Cells(m + 7, n + 1).FormulaR1C1 = "=R[1]C"
                
                'Choose the coordinate system indicated by the user (s, c or o)
                If Left(ActiveSheet.Cells(m + 4, n + 1).Value, 1) = "s" Then
                'Segment Field-07a. Spherical coordinates
                    'verify if the parameters were not stablished by the user:
                    If WorksheetFunction.Or(InStr(ActiveSheet.Cells(m + 4, n + 1).Value, "r=") = 0, InStr(ActiveSheet.Cells(m + 4, n + 1).Value, "phi=") = 0, InStr(ActiveSheet.Cells(m + 4, n + 1).Value, "theta=") = 0) Then
                        If L / xS < 1 Then
                            Nlinex = Round(L / (2 * xS), InStr(InStr(L / (2 * xS), ","), L / (2 * xS), "0", 0) + 1)
                        Else
                            Nlinex = Round(L / (2 * xS), 0)
                        End If
                        NLine = Nlinex / 10
                        NLine2 = 10
                        NLine3 = 10
                        Nline0x = Nlinex
                        Nline0y = 0
                        Nline0z = 0
                        Nliney = 360
                        Nlinez = 180
                        
                        ' Set origin by default and automatically according to the dimensions of the current vectors:
                        'Collect current vector coordinate data:
                        i = 0
                        j = 1
                        Do While ActiveSheet.Cells(m + 3 + i * 9, n - 1).Value <> ""
                            If Cells(m + 5 + i * 9, n + 1).Value < 1 Then
                                ReDim Preserve A(j + 5)
                                A(j) = Cells(m + 7 + i * 9, n - 1).Value
                            End If
                            i = i + 1
                            j = j + 1
                        Loop
                        Centerx = WorksheetFunction.Average(A)
                        Erase A
                        
                        i = 0
                        j = 1
                        Do While ActiveSheet.Cells(m + 3 + i * 9, n - 1).Value <> ""
                            If Cells(m + 5 + i * 9, n + 1).Value < 1 Then
                                ReDim Preserve A(j + 5)
                                A(j) = Cells(m + 7 + i * 9, n).Value
                            End If
                            i = i + 1
                            j = j + 1
                        Loop
                        Centery = WorksheetFunction.Average(A)
                        Erase A
                        
                        i = 0
                        j = 1
                        Do While ActiveSheet.Cells(m + 3 + i * 9, n - 1).Value <> ""
                            If Cells(m + 5 + i * 9, n + 1).Value < 1 Then
                                ReDim Preserve A(j + 5)
                                A(j) = Cells(m + 7 + i * 9, n + 1).Value
                            End If
                            i = i + 1
                            j = j + 1
                        Loop
                        Centerz = WorksheetFunction.Average(A)
                        Erase A
                        
                        'Put parameters to display the field:
                        ActiveSheet.Cells(m + 4, n + 1).FormulaR1C1 = "s[" & NLine & "]r=[" & Nline0x & ";" & Nlinex & "]s2[" & NLine2 & "]phi=[" & Nline0y & ";" & Nliney & "]s3[" & NLine3 & "]theta=[" & Nline0z & ";" & Nlinez & "]color=[" & Nlinex * 2 & "]origin[cart.]=[" & Centerx & ";" & Centery & ";" & Centerz & "]tfactor=0,008s"
                        ActiveSheet.Cells(m + 4, n + 1).AddComment
                        ActiveSheet.Cells(m + 4, n + 1).Comment.Visible = False
                        ActiveSheet.Cells(m + 4, n + 1).Comment.Shape.Width = 300
                        ActiveSheet.Cells(m + 4, n + 1).Comment.Shape.Height = 300
                        ActiveSheet.Cells(m + 4, n + 1).Comment.Text Text:="Field mode:" & Chr(10) & "1. For spherical coordinates, cell value = s" _
                        & Chr(10) & "2. For cylindrical coordinates, cell value = c" _
                        & Chr(10) & "3. For Cartesian coordinates, cell value = o" _
                        & Chr(10) & Chr(10) & "Then set the parameters to the string that appeared in this cell." _
                        & Chr(10) & "The first parenthesis [ ] indicates the step of increasing coordinates, " _
                        & "the next three parentheses [ ] indicate the range of each of the three coordinates, " _
                        & "the higher the range, the longer the rendering time; " _
                        & "the color parameter is used to color the vector according to its length, the number indicating approximately the length of the largest vector, " _
                        & "the color is distributed between red (smaller vector) and violet (larger vector)." _
                        & "The last parenthesis [ ] indicates the origin of the coordinates, where vector distributions begin." _
                        & Chr(10) & Chr(10) & "Please enclose only numeric values between semicolons, do not modify the structure of this string, except if you are an expert in MS Excel." _
                        & Chr(10) & Chr(10) & "To return to single vector mode, clear the contents of this cell." _
                        & Chr(10) & Chr(10) & "Right-click to remove this comment."
                        
                        'Regulate the length of all the vectors of the field.
                        ActiveSheet.Cells(m + 5, n).Value = "60*1" ' regulador de longitudes
                    End If
                        Atemp = InStr(ActiveSheet.Cells(m + 4, n + 1).Value, "s[") + 2
                        Btemp = InStr(Atemp, ActiveSheet.Cells(m + 4, n + 1).Value, "]", 1)
                        Ctemp = Btemp - Atemp
                        NLine = Mid(ActiveSheet.Cells(m + 4, n + 1).Value, Atemp, Ctemp) 'value of NLine
                      'Definir NLine2, intervalo de cambio de las variables
                        Atemp = InStr(ActiveSheet.Cells(m + 4, n + 1).Value, "s2[") + 3
                        Btemp = InStr(Atemp, ActiveSheet.Cells(m + 4, n + 1).Value, "]", 1)
                        Ctemp = Btemp - Atemp
                        NLine2 = Mid(ActiveSheet.Cells(m + 4, n + 1).Value, Atemp, Ctemp) 'valor de NLine
                      'Definir NLine3, intervalo de cambio de las variables
                        Atemp = InStr(ActiveSheet.Cells(m + 4, n + 1).Value, "s3[") + 3
                        Btemp = InStr(Atemp, ActiveSheet.Cells(m + 4, n + 1).Value, "]", 1)
                        Ctemp = Btemp - Atemp
                        NLine3 = Mid(ActiveSheet.Cells(m + 4, n + 1).Value, Atemp, Ctemp) 'valor de NLine
                    'Definir el rango de r
                        Atemp = InStr(ActiveSheet.Cells(m + 4, n + 1).Value, "r=") + 3
                        Btemp = InStr(Atemp, ActiveSheet.Cells(m + 4, n + 1).Value, ";", 1)
                        Ctemp = Btemp - Atemp
                        Nline0x = Mid(ActiveSheet.Cells(m + 4, n + 1).Value, Atemp, Ctemp) 'valor inicial de r
                        Atemp = InStr(Btemp, ActiveSheet.Cells(m + 4, n + 1).Value, "]")
                        Ctemp = Atemp - Btemp
                        Nlinex = Mid(ActiveSheet.Cells(m + 4, n + 1).Value, Btemp + 1, Ctemp - 1) ' valor final de r
                    'Definir el rango de phi
                        Atemp = InStr(ActiveSheet.Cells(m + 4, n + 1).Value, "phi=") + 5
                        Btemp = InStr(Atemp, ActiveSheet.Cells(m + 4, n + 1).Value, ";", 1)
                        Ctemp = Btemp - Atemp
                        Nline0y = Mid(ActiveSheet.Cells(m + 4, n + 1).Value, Atemp, Ctemp) 'valor inicial de phi
                        Atemp = InStr(Btemp, ActiveSheet.Cells(m + 4, n + 1).Value, "]")
                        Ctemp = Atemp - Btemp
                        Nliney = Mid(ActiveSheet.Cells(m + 4, n + 1).Value, Btemp + 1, Ctemp - 1) ' valor final de phi
                    'Definir el rango de theta
                        Atemp = InStr(ActiveSheet.Cells(m + 4, n + 1).Value, "theta=") + 7
                        Btemp = InStr(Atemp, ActiveSheet.Cells(m + 4, n + 1).Value, ";", 1)
                        Ctemp = Btemp - Atemp
                        Nline0z = Mid(ActiveSheet.Cells(m + 4, n + 1).Value, Atemp, Ctemp) 'valor inicial de phi
                        Atemp = InStr(Btemp, ActiveSheet.Cells(m + 4, n + 1).Value, "]")
                        Ctemp = Atemp - Btemp
                        Nlinez = Mid(ActiveSheet.Cells(m + 4, n + 1).Value, Btemp + 1, Ctemp - 1) ' valor final de phi
                     'Definir el tiempo de demora para mostrar un vector
                        Atemp = InStr(ActiveSheet.Cells(m + 4, n + 1).Value, "tfactor=") + 8
                        Btemp = InStr(Atemp, ActiveSheet.Cells(m + 4, n + 1).Value, "s", 1)
                        Ctemp = Btemp - Atemp
                        tfactor = Mid(ActiveSheet.Cells(m + 4, n + 1).Value, Atemp, Ctemp) 'valor de tfactor
                     'Verificar la cantidad de vectores
                        Bulk = (WorksheetFunction.RoundDown((Nlinex - Nline0x + 1) / (NLine + 1), 0) + 1) _
                        * (WorksheetFunction.RoundDown((Nliney - Nline0y + 1) / (NLine2 + 1), 0) + 1) _
                        * (WorksheetFunction.RoundDown((Nlinez - Nline0z + 1) / (NLine3 + 1), 0) + 1)
                        msg = "They will be more than " & Bulk & " vectors, and depending on the performance of your computer it will take more than " _
                            & Round(1.2 * (Bulk * tfactor + 15) / 60, 1) & " minutes to render. Do you want to continue?"
                        If Round(2 * (Bulk * tfactor) / 60, 1) > 0.5 Then  ' confirmacion del ususario cuando el tiempode renderiz. es mayor a medio minuto
                            Response = MsgBox(msg, vbYesNo, "Confirmation")
                            If Response = vbYes Then
                            Else
                                GoTo sig
                            End If
                        End If
                      'Origin of the spherical coordinates in the XYZ system
                      On Error Resume Next ' 08-2024
                      'Origin in x:
                        Atemp = InStr(ActiveSheet.Cells(m + 4, n + 1).Value, "origin[cart.]=") + 15
                        Btemp = InStr(Atemp, ActiveSheet.Cells(m + 4, n + 1).Value, ";", 1)
                        Ctemp = Btemp - Atemp
                        x_0 = Mid(ActiveSheet.Cells(m + 4, n + 1).Value, Atemp, Ctemp)
                      'Origin in y
                        Atemp = InStr(ActiveSheet.Cells(m + 4, n + 1).Value, "origin[cart.]=") + 16 + Ctemp
                        Btemp = InStr(Atemp + 1, ActiveSheet.Cells(m + 4, n + 1).Value, ";", 1)
                        Ctemp = Btemp - Atemp
                        y_0 = Mid(ActiveSheet.Cells(m + 4, n + 1).Value, Atemp, Ctemp)
                     'Origin in z
                        Atemp = InStr(Btemp + 1, ActiveSheet.Cells(m + 4, n + 1).Value, "]", 1)
                        Ctemp = Atemp - Btemp
                        z_0 = Mid(ActiveSheet.Cells(m + 4, n + 1).Value, Btemp + 1, Ctemp - 1)
                        '/////////////////'  measurement of time
                            t = Timer
                        '/////////////////
                        'Display the field in the coordinate system (display it in spherical coordinates)
                            For i = Nline0x To Nlinex Step NLine
                                For j = Nline0y To Nliney Step NLine2
                                    For k = Nline0z To Nlinez Step NLine3
                                        ActiveSheet.Cells(m + 8, n - 1).Value = i * Cos(WorksheetFunction.Radians(j)) * Sin(WorksheetFunction.Radians(k)) + x_0
                                        ActiveSheet.Cells(m + 8, n).Value = i * Sin(WorksheetFunction.Radians(j)) * Sin(WorksheetFunction.Radians(k)) + y_0
                                        ActiveSheet.Cells(m + 8, n + 1).Value = i * Cos(WorksheetFunction.Radians(k)) + z_0
                                        Call VectorOutput(m, n, s, cod, Y_abs, Z_abs, xS, T_color) 'Put each vector in XYZ
                                        If Cells(m + 10, n).Value > 0 And Cells(m + 11, n).Value > 0 Then
                                                Call DataOutput(m, n)
                                                DoEvents
                                        End If
                                        s = s + 1 ' next vector
                                    Next k
                                Next j
                            Next i
                Else
                'Segment Field-07b Begin of cylindrical coordinates
                If Left(ActiveSheet.Cells(m + 4, n + 1).Value, 1) = "c" Then
                     If WorksheetFunction.Or(InStr(ActiveSheet.Cells(m + 4, n + 1).Value, "rho=") = 0, InStr(ActiveSheet.Cells(m + 4, n + 1).Value, "phi=") = 0, InStr(ActiveSheet.Cells(m + 4, n + 1).Value, "z=") = 0) Then
                        If L / xS < 1 Then
                            Nlinex = Round(L / (xS), InStr(InStr(L / (xS), ","), L / (xS), "0", 0) + 1)
                        Else
                            Nlinex = Round(L / (xS), 0)
                        End If
                        NLine = Nlinex / 5
                        NLine2 = 10
                        NLine3 = Nlinex / 5
                        Nline0x = Nlinex / 3
                        Nline0y = 0
                        Nline0z = 0
                        Nliney = 360
                        Nlinez = 0
                        
                       ' Set origin by default and automatically according to the dimensions of the current vectors:
                        'Collect current vector coordinate data:
                        i = 0
                        j = 1
                        Do While ActiveSheet.Cells(m + 3 + i * 9, n - 1).Value <> ""
                            If Cells(m + 5 + i * 9, n + 1).Value < 1 Then
                                ReDim Preserve A(j + 5)
                                A(j) = Cells(m + 7 + i * 9, n - 1).Value
                            End If
                            i = i + 1
                            j = j + 1
                        Loop
                        Centerx = WorksheetFunction.Average(A)
                        Erase A
                        
                        i = 0
                        j = 1
                        Do While ActiveSheet.Cells(m + 3 + i * 9, n - 1).Value <> ""
                            If Cells(m + 5 + i * 9, n + 1).Value < 1 Then
                                ReDim Preserve A(j + 5)
                                A(j) = Cells(m + 7 + i * 9, n).Value
                            End If
                            i = i + 1
                            j = j + 1
                        Loop
                        Centery = WorksheetFunction.Average(A)
                        Erase A
                        
                        i = 0
                        j = 1
                        Do While ActiveSheet.Cells(m + 3 + i * 9, n - 1).Value <> ""
                            If Cells(m + 5 + i * 9, n + 1).Value < 1 Then
                                ReDim Preserve A(j + 5)
                                A(j) = Cells(m + 7 + i * 9, n + 1).Value
                            End If
                            i = i + 1
                            j = j + 1
                        Loop
                        Centerz = WorksheetFunction.Average(A)
                        Erase A
                        
                        'Put parameters to display the field:
                        ActiveSheet.Cells(m + 4, n + 1).FormulaR1C1 = "c[" & NLine & "]rho=[" & Nline0x & ";" & Nlinex & "]c2[" & NLine2 & "]phi=[" & Nline0y & ";" & Nliney & "]c3[" & NLine3 & "]z=[" & Nline0z & ";" & Nlinez & "]color=[" & Nlinex & "]origin[cart.]=[" & Centerx & ";" & Centery & ";" & Centerz & "]tfactor=0,008s"
                        ActiveSheet.Cells(m + 4, n + 1).AddComment
                        ActiveSheet.Cells(m + 4, n + 1).Comment.Visible = False
                        ActiveSheet.Cells(m + 4, n + 1).Comment.Shape.Width = 300
                        ActiveSheet.Cells(m + 4, n + 1).Comment.Shape.Height = 300
                        ActiveSheet.Cells(m + 4, n + 1).Comment.Text Text:="Field mode:" & Chr(10) & "1. For spherical coordinates, cell value = s" _
                        & Chr(10) & "2. For cylindrical coordinates, cell value = c" _
                        & Chr(10) & "3. For Cartesian coordinates, cell value = o" _
                        & Chr(10) & Chr(10) & "Then set the parameters to the string that appeared in this cell." _
                        & Chr(10) & "The first parenthesis [ ] indicates the step of increasing coordinates, " _
                        & "the next three parentheses [ ] indicate the range of each of the three coordinates, " _
                        & "the higher the range, the longer the rendering time; " _
                        & "the color parameter is used to color the vector according to its length, the number indicating approximately the length of the largest vector, " _
                        & "the color is distributed between red (smaller vector) and violet (larger vector)." _
                        & "The last parenthesis [ ] indicates the origin of the coordinates, where vector distributions begin." _
                        & Chr(10) & Chr(10) & "Please enclose only numeric values between semicolons, do not modify the structure of this string, except if you are an expert in MS Excel." _
                        & Chr(10) & Chr(10) & "To return to single vector mode, clear the contents of this cell." _
                        & Chr(10) & Chr(10) & "Right-click to remove this comment."
                        'ActiveSheet.Cells(m + 5, n).Value = "60*1" ' regulador de longitudes
                    End If
                      'Definir NLine, intervalo de cambio de las variables
                        Atemp = InStr(ActiveSheet.Cells(m + 4, n + 1).Value, "c[") + 2
                        Btemp = InStr(Atemp, ActiveSheet.Cells(m + 4, n + 1).Value, "]", 1)
                        Ctemp = Btemp - Atemp
                        NLine = Mid(ActiveSheet.Cells(m + 4, n + 1).Value, Atemp, Ctemp) 'valor de NLine
                      'Definir NLine2, intervalo de cambio de las variables
                        Atemp = InStr(ActiveSheet.Cells(m + 4, n + 1).Value, "c2[") + 3
                        Btemp = InStr(Atemp, ActiveSheet.Cells(m + 4, n + 1).Value, "]", 1)
                        Ctemp = Btemp - Atemp
                        NLine2 = Mid(ActiveSheet.Cells(m + 4, n + 1).Value, Atemp, Ctemp) 'valor de NLine
                      'Definir NLine3, intervalo de cambio de las variables
                        Atemp = InStr(ActiveSheet.Cells(m + 4, n + 1).Value, "c3[") + 3
                        Btemp = InStr(Atemp, ActiveSheet.Cells(m + 4, n + 1).Value, "]", 1)
                        Ctemp = Btemp - Atemp
                        NLine3 = Mid(ActiveSheet.Cells(m + 4, n + 1).Value, Atemp, Ctemp) 'valor de NLine
                    'Definir el rango de rho
                        Atemp = InStr(ActiveSheet.Cells(m + 4, n + 1).Value, "rho=") + 5
                        Btemp = InStr(Atemp, ActiveSheet.Cells(m + 4, n + 1).Value, ";", 1)
                        Ctemp = Btemp - Atemp
                        Nline0x = Mid(ActiveSheet.Cells(m + 4, n + 1).Value, Atemp, Ctemp) 'valor inicial de rho
                        Atemp = InStr(Btemp, ActiveSheet.Cells(m + 4, n + 1).Value, "]")
                        Ctemp = Atemp - Btemp
                        Nlinex = Mid(ActiveSheet.Cells(m + 4, n + 1).Value, Btemp + 1, Ctemp - 1) ' valor final de r
                    'Definir el rango de phi
                        Atemp = InStr(ActiveSheet.Cells(m + 4, n + 1).Value, "phi=") + 5
                        Btemp = InStr(Atemp, ActiveSheet.Cells(m + 4, n + 1).Value, ";", 1)
                        Ctemp = Btemp - Atemp
                        Nline0y = Mid(ActiveSheet.Cells(m + 4, n + 1).Value, Atemp, Ctemp) 'valor inicial de phi
                        Atemp = InStr(Btemp, ActiveSheet.Cells(m + 4, n + 1).Value, "]")
                        Ctemp = Atemp - Btemp
                        Nliney = Mid(ActiveSheet.Cells(m + 4, n + 1).Value, Btemp + 1, Ctemp - 1) ' valor final de phi
                    'Definir el rango de z
                        Atemp = InStr(ActiveSheet.Cells(m + 4, n + 1).Value, "z=") + 3
                        Btemp = InStr(Atemp, ActiveSheet.Cells(m + 4, n + 1).Value, ";", 1)
                        Ctemp = Btemp - Atemp
                        Nline0z = Mid(ActiveSheet.Cells(m + 4, n + 1).Value, Atemp, Ctemp) 'valor inicial de phi
                        Atemp = InStr(Btemp, ActiveSheet.Cells(m + 4, n + 1).Value, "]")
                        Ctemp = Atemp - Btemp
                        Nlinez = Mid(ActiveSheet.Cells(m + 4, n + 1).Value, Btemp + 1, Ctemp - 1) ' valor final de phi
                      'Definir el tiempo de demora para mostrar un vector
                        Atemp = InStr(ActiveSheet.Cells(m + 4, n + 1).Value, "tfactor=") + 8
                        Btemp = InStr(Atemp, ActiveSheet.Cells(m + 4, n + 1).Value, "s", 1)
                        Ctemp = Btemp - Atemp
                        tfactor = Mid(ActiveSheet.Cells(m + 4, n + 1).Value, Atemp, Ctemp) 'valor de tfactor
        
                     'Verificar la cantidad de vectores
                         Bulk = (WorksheetFunction.RoundDown((Nlinex - Nline0x + 1) / (NLine + 1), 0) + 1) _
                        * (WorksheetFunction.RoundDown((Nliney - Nline0y + 1) / (NLine2 + 1), 0) + 1) _
                        * (WorksheetFunction.RoundDown((Nlinez - Nline0z + 1) / (NLine3 + 1), 0) + 1)
                        msg = "They will be more than " & Bulk & " vectors, and depending on the performance of your computer it will take more than " _
                            & Round((Bulk * tfactor + 15) / 60, 1) & " minutes to render. Do you want to continue?"
                        If Round((2 * Bulk * tfactor) / 60, 1) > 0.5 Then ' confirmacion del ususario cuando el tiempode renderiz. es mayor a medio minuto
                            Response = MsgBox(msg, vbYesNo, "Confirmation")
                            If Response = vbYes Then
                            Else
                                GoTo sig
                            End If
                        End If
                      'Origen de coordenadas:
                      'origen en x:
                      On Error Resume Next ' 08-2024
                        Atemp = InStr(ActiveSheet.Cells(m + 4, n + 1).Value, "origin[cart.]=") + 15
                        Btemp = InStr(Atemp, ActiveSheet.Cells(m + 4, n + 1).Value, ";", 1)
                        Ctemp = Btemp - Atemp
                        x_0 = Mid(ActiveSheet.Cells(m + 4, n + 1).Value, Atemp, Ctemp)
                      'origen en y
                        Atemp = InStr(ActiveSheet.Cells(m + 4, n + 1).Value, "origin[cart.]=") + 16 + Ctemp
                        Btemp = InStr(Atemp + 1, ActiveSheet.Cells(m + 4, n + 1).Value, ";", 1)
                        Ctemp = Btemp - Atemp
                        y_0 = Mid(ActiveSheet.Cells(m + 4, n + 1).Value, Atemp, Ctemp)
                     'origen en z
                        Atemp = InStr(Btemp + 1, ActiveSheet.Cells(m + 4, n + 1).Value, "]", 1)
                        Ctemp = Atemp - Btemp
                        z_0 = Mid(ActiveSheet.Cells(m + 4, n + 1).Value, Btemp + 1, Ctemp - 1)
                        '/////////////////'medicion de tiempo de ejecucion del campo
                            t = Timer
                        '/////////////////
                        'Display the field in the coordinate system (display it in cylindrical coordinates)
                            For i = Nline0x To Nlinex Step NLine
                                For j = Nline0y To Nliney Step NLine2
                                    For k = Nline0z To Nlinez Step NLine3
                                        ActiveSheet.Cells(m + 8, n - 1).Value = i * Cos(WorksheetFunction.Radians(j)) + x_0
                                        ActiveSheet.Cells(m + 8, n).Value = i * Sin(WorksheetFunction.Radians(j)) + y_0
                                        ActiveSheet.Cells(m + 8, n + 1).Value = k + z_0
                                        Call VectorOutput(m, n, s, cod, Y_abs, Z_abs, xS, T_color) 'Put each vector in XYZ
                                          If Cells(m + 10, n).Value > 0 And Cells(m + 11, n).Value > 0 Then
                                                Call DataOutput(m, n)
                                                DoEvents
                                        End If
                                        s = s + 1 ' siguiente vector clonado
                                    Next k
                                Next j
                            Next i
                Else
                'Segment Field-07c. Begin of Cartesian coordinates.
                If Left(ActiveSheet.Cells(m + 4, n + 1).Value, 1) = "=" Then GoTo sig
                     If WorksheetFunction.Or(InStr(ActiveSheet.Cells(m + 4, n + 1).Value, "x=") = 0, InStr(ActiveSheet.Cells(m + 4, n + 1).Value, "y=") = 0, InStr(ActiveSheet.Cells(m + 4, n + 1).Value, "z=") = 0) Then
                        If L / xS < 1 Then
                            Nliney = Round(L / (xS), InStr(InStr(L / (xS), ","), L / (xS), "0", 0) + 1)
                        Else
                            Nliney = Round(L / (xS), 0)
                        End If
                        NLine = Nliney / 20
                        NLine2 = Nliney / 20
                        NLine3 = Nliney / 20
                        Nline0x = 0
                        Nline0y = -Nliney
                        Nline0z = -Nliney
                        Nlinex = 0
                        Nlinez = Nliney
                        
                        ' Set origin by default and automatically according to the dimensions of the current vectors:
                        'Collect current vector coordinate data:
                        i = 0
                        j = 1
                        Do While ActiveSheet.Cells(m + 3 + i * 9, n - 1).Value <> ""
                            If Cells(m + 5 + i * 9, n + 1).Value < 1 Then
                                ReDim Preserve A(j + 5)
                                A(j) = Cells(m + 7 + i * 9, n - 1).Value
                            End If
                            i = i + 1
                            j = j + 1
                        Loop
                        Centerx = WorksheetFunction.Average(A)
                        Erase A
                        
                        i = 0
                        j = 1
                        Do While ActiveSheet.Cells(m + 3 + i * 9, n - 1).Value <> ""
                            If Cells(m + 5 + i * 9, n + 1).Value < 1 Then
                                ReDim Preserve A(j + 5)
                                A(j) = Cells(m + 7 + i * 9, n).Value
                            End If
                            i = i + 1
                            j = j + 1
                        Loop
                        Centery = WorksheetFunction.Average(A)
                        Erase A
                        
                        i = 0
                        j = 1
                        Do While ActiveSheet.Cells(m + 3 + i * 9, n - 1).Value <> ""
                            If Cells(m + 5 + i * 9, n + 1).Value < 1 Then
                                ReDim Preserve A(j + 5)
                                A(j) = Cells(m + 7 + i * 9, n + 1).Value
                            End If
                            i = i + 1
                            j = j + 1
                        Loop
                        Centerz = WorksheetFunction.Average(A)
                        Erase A
                        
                        'Put parameters to display the field:
                        ActiveSheet.Cells(m + 4, n + 1).FormulaR1C1 = "o[" & NLine & "]x=[" & Nline0x & ";" & Nlinex & "]o2[" & NLine2 & "]y=[" & Nline0y & ";" & Nliney & "]o3[" & NLine3 & "]z=[" & Nline0z & ";" & Nlinez & "]color=[" & Nliney * 2 & "]origin[cart.]=[" & Centerx & ";" & Centery & ";" & Centerz & "]tfactor=0,008s"
                        ActiveSheet.Cells(m + 4, n + 1).AddComment
                        ActiveSheet.Cells(m + 4, n + 1).Comment.Visible = False
                        ActiveSheet.Cells(m + 4, n + 1).Comment.Shape.Width = 300
                        ActiveSheet.Cells(m + 4, n + 1).Comment.Shape.Height = 300
                        ActiveSheet.Cells(m + 4, n + 1).Comment.Text Text:="Field mode:" & Chr(10) & "1. For spherical coordinates, cell value = s" _
                        & Chr(10) & "2. For cylindrical coordinates, cell value = c" _
                        & Chr(10) & "3. For Cartesian coordinates, cell value = o" _
                        & Chr(10) & Chr(10) & "Then set the parameters to the string that appeared in this cell." _
                        & Chr(10) & "The first parenthesis [ ] indicates the step of increasing coordinates, " _
                        & "the next three parentheses [ ] indicate the range of each of the three coordinates, " _
                        & "the higher the range, the longer the rendering time; " _
                        & "the color parameter is used to color the vector according to its length, the number indicating approximately the length of the largest vector, " _
                        & "the color is distributed between red (smaller vector) and violet (larger vector)." _
                        & "The last parenthesis [ ] indicates the origin of the coordinates, where vector distributions begin." _
                        & Chr(10) & Chr(10) & "Please enclose only numeric values between semicolons, do not modify the structure of this string, except if you are an expert in MS Excel." _
                        & Chr(10) & Chr(10) & "To return to single vector mode, clear the contents of this cell." _
                        & Chr(10) & Chr(10) & "Right-click to remove this comment."
                        ActiveSheet.Cells(m + 5, n).Value = "60*1" ' regulador de longitudes
                    End If
                    If InStr(ActiveSheet.Cells(m + 4, n + 1).Value, "y=") = 0 Then
                        ActiveSheet.Cells(m + 4, n + 1).FormulaR1C1 = "o[2]x=[0;0]o2[2]y=[-10;10]o3[2]z=[-10;10]color=[8]origin[cart.]=[0;0;0]tfactor=0,008s"
                    End If
                    If InStr(ActiveSheet.Cells(m + 4, n + 1).Value, "z=") = 0 Then
                        ActiveSheet.Cells(m + 4, n + 1).FormulaR1C1 = "o[2]x=[0;0]o2[2]y=[-10;10]o3[2]z=[-10;10]color=[8]origin[cart.]=[0;0;0]tfactor=0,008s"
                    End If
                    
                      'Definir NLine, intervalo de cambio de las variables
                        Atemp = InStr(ActiveSheet.Cells(m + 4, n + 1).Value, "o[") + 2
                        Btemp = InStr(Atemp, ActiveSheet.Cells(m + 4, n + 1).Value, "]", 1)
                        Ctemp = Btemp - Atemp
                        NLine = Mid(ActiveSheet.Cells(m + 4, n + 1).Value, Atemp, Ctemp) 'valor de NLine
                     'Definir NLine2, intervalo de cambio de las variables
                        Atemp = InStr(ActiveSheet.Cells(m + 4, n + 1).Value, "o2[") + 3
                        Btemp = InStr(Atemp, ActiveSheet.Cells(m + 4, n + 1).Value, "]", 1)
                        Ctemp = Btemp - Atemp
                        NLine2 = Mid(ActiveSheet.Cells(m + 4, n + 1).Value, Atemp, Ctemp) 'valor de NLine
                     'Definir NLine3, intervalo de cambio de las variables
                        Atemp = InStr(ActiveSheet.Cells(m + 4, n + 1).Value, "o3[") + 3
                        Btemp = InStr(Atemp, ActiveSheet.Cells(m + 4, n + 1).Value, "]", 1)
                        Ctemp = Btemp - Atemp
                        NLine3 = Mid(ActiveSheet.Cells(m + 4, n + 1).Value, Atemp, Ctemp) 'valor de NLine
                    'Definir el rango de x
                        Atemp = InStr(ActiveSheet.Cells(m + 4, n + 1).Value, "x=") + 3
                        Btemp = InStr(Atemp, ActiveSheet.Cells(m + 4, n + 1).Value, ";", 1)
                        Ctemp = Btemp - Atemp
                        Nline0x = Mid(ActiveSheet.Cells(m + 4, n + 1).Value, Atemp, Ctemp) 'valor inicial de x
                        Atemp = InStr(Btemp, ActiveSheet.Cells(m + 4, n + 1).Value, "]")
                        Ctemp = Atemp - Btemp
                        Nlinex = Mid(ActiveSheet.Cells(m + 4, n + 1).Value, Btemp + 1, Ctemp - 1) ' valor final de x
                    'Definir el rango de y
                        Atemp = InStr(ActiveSheet.Cells(m + 4, n + 1).Value, "y=") + 3
                        Btemp = InStr(Atemp, ActiveSheet.Cells(m + 4, n + 1).Value, ";", 1)
                        Ctemp = Btemp - Atemp
                        Nline0y = Mid(ActiveSheet.Cells(m + 4, n + 1).Value, Atemp, Ctemp) 'valor inicial de y
                        Atemp = InStr(Btemp, ActiveSheet.Cells(m + 4, n + 1).Value, "]")
                        Ctemp = Atemp - Btemp
                        Nliney = Mid(ActiveSheet.Cells(m + 4, n + 1).Value, Btemp + 1, Ctemp - 1) ' valor final de y
                    'Definir el rango de z
                        Atemp = InStr(ActiveSheet.Cells(m + 4, n + 1).Value, "z=") + 3
                        Btemp = InStr(Atemp, ActiveSheet.Cells(m + 4, n + 1).Value, ";", 1)
                        Ctemp = Btemp - Atemp
                        Nline0z = Mid(ActiveSheet.Cells(m + 4, n + 1).Value, Atemp, Ctemp) 'valor inicial de z
                        Atemp = InStr(Btemp, ActiveSheet.Cells(m + 4, n + 1).Value, "]")
                        Ctemp = Atemp - Btemp
                        Nlinez = Mid(ActiveSheet.Cells(m + 4, n + 1).Value, Btemp + 1, Ctemp - 1) ' valor final de z
                    'Definir el tiempo de demora para mostrar un vector
                        Atemp = InStr(ActiveSheet.Cells(m + 4, n + 1).Value, "tfactor=") + 8
                        Btemp = InStr(Atemp, ActiveSheet.Cells(m + 4, n + 1).Value, "s", 1)
                        Ctemp = Btemp - Atemp
                        tfactor = Mid(ActiveSheet.Cells(m + 4, n + 1).Value, Atemp, Ctemp) 'valor de tfactor
                     'Verificar la cantidad de vectores
                         Bulk = (WorksheetFunction.RoundDown((Nlinex - Nline0x + 1) / (NLine + 1), 0) + 1) _
                        * (WorksheetFunction.RoundDown((Nliney - Nline0y + 1) / (NLine2 + 1), 0) + 1) _
                        * (WorksheetFunction.RoundDown((Nlinez - Nline0z + 1) / (NLine3 + 1), 0) + 1)
                        msg = "They will be more than " & Bulk & " vectors, and depending on the performance of your computer it will take more than " _
                            & Round((Bulk * tfactor + 15) / 60, 1) & " minutes to render. Do you want to continue?"
                        If Round((Bulk * tfactor + 15) / 60, 1) > 0.5 Then ' confirmacion del ususario cuando el tiempode renderiz. es mayor a medio minuto
                            Response = MsgBox(msg, vbYesNo, "Confirmation")
                            If Response = vbYes Then
                            Else
                                GoTo sig
                            End If
                        End If
                      'Origin:
                      On Error Resume Next ' 08-2024
                      'origen en x:
                        Atemp = InStr(ActiveSheet.Cells(m + 4, n + 1).Value, "origin[cart.]=") + 15
                        Btemp = InStr(Atemp, ActiveSheet.Cells(m + 4, n + 1).Value, ";", 1)
                        Ctemp = Btemp - Atemp
                        x_0 = Mid(ActiveSheet.Cells(m + 4, n + 1).Value, Atemp, Ctemp)
                      'origen en y
                        Atemp = InStr(ActiveSheet.Cells(m + 4, n + 1).Value, "origin[cart.]=") + 16 + Ctemp
                        Btemp = InStr(Atemp + 1, ActiveSheet.Cells(m + 4, n + 1).Value, ";", 1)
                        Ctemp = Btemp - Atemp
                        y_0 = Mid(ActiveSheet.Cells(m + 4, n + 1).Value, Atemp, Ctemp)
                     'origen en z
                        Atemp = InStr(Btemp + 1, ActiveSheet.Cells(m + 4, n + 1).Value, "]", 1)
                        Ctemp = Atemp - Btemp
                        z_0 = Mid(ActiveSheet.Cells(m + 4, n + 1).Value, Btemp + 1, Ctemp - 1)
                        '/////////////////'measurement of time
                            t = Timer
                        '/////////////////
                        ''Display the field in the coordinate system (display it in Cartesian coordinates)
                            For i = Nline0x To Nlinex Step NLine
                                For j = Nline0y To Nliney Step NLine2
                                    For k = Nline0z To Nlinez Step NLine3
                                        ActiveSheet.Cells(m + 8, n - 1).Value = i + x_0
                                        ActiveSheet.Cells(m + 8, n).Value = j + y_0
                                        ActiveSheet.Cells(m + 8, n + 1).Value = k + z_0
                                        Call VectorOutput(m, n, s, cod, Y_abs, Z_abs, xS, T_color) 'Put each vector in XYZ
                                        If Cells(m + 10, n).Value > 0 And Cells(m + 11, n).Value > 0 Then '
                                                Call DataOutput(m, n)
                                                DoEvents
                                        End If
                                        s = s + 1 ' next vector
                                    Next k
                                Next j
                            Next i
                            End If ' Ending of cylindrical and spherical coord.
                        End If 'End of coordinates
                        '//////////Records the total time it took Excel to place all the vectors of the field into the spreadsheet.
                        ActiveSheet.Cells(m + 4, n + 1).Formula = Replace(ActiveSheet.Cells(m + 4, n + 1).Formula, "tfactor=" & tfactor, "tfactor=" & (Timer - t) / s, 1, 1)
sig:
    'Segment Field-08. Here the option to show field ends and the option to show a single vector begins
            Else
                s = 1
                Call VectorOutput(m, n, s, cod, Y_abs, Z_abs, xS, T_color)
            End If
                
'Segment field-09. Fix s (vector inside a field)
        Cells(m + 5, n - 1).Value = s
        End If
        m = m + 9 ' Next vector of the spreadsheet in the first 3 columns.
    Loop
    
End Sub
Sub Rotate()
    '© 2022 A Becerra. ScienSolar.com
    'Procedure to update spreadsheet
    Application.ScreenUpdating = False
    Dim t As Single ' para medir el tiempo 1/100 s quitar el comentario
    t = Timer
    Dim fila As Range
    Dim m As Integer
    Dim n As Integer
    
    Set fila = Cells.Find(What:="INICIO")
    m = fila.Offset(1, 0).Row
    n = fila.Offset(1, 1).Column
    Set fila = Nothing

    Call XYZ(m, n)
    Call Field(m, n)
    Application.ScreenUpdating = True
    Cells(m + 2, n).Value = "t = " & Timer - t & " s."  ' muestra el tiempo que dura el codigo en ejecutarse. Quitar el comentario
End Sub

Sub CreateLabel(ByVal L, t, W, h As Single, T_color As Double, name, label As Variant)
'Procedure to create labels of the vectors
'© 2022 A Becerra. ScienSolar.com
    On Error Resume Next
    If Left(label, 3) = "(Eq" Then
         Sheets("3DModels").Shapes(label).Copy
         ActiveSheet.Paste
         With ActiveSheet.Shapes(label)
            .Left = L
            .Top = t
            .TextFrame2.TextRange.Characters.Font.Fill.ForeColor.RGB = T_color
        End With
        ActiveSheet.Buttons("AutoSc").Select
    Else
        ActiveSheet.Shapes.AddTextbox(msoTextOrientationHorizontal, L, t, 100, h).name = "Cuadro" & name
        With ActiveSheet.Shapes("Cuadro" & name)
                With .TextFrame2.TextRange.Characters
                    .Text = label
                    With .Font.Fill
                        .ForeColor.RGB = T_color
                        .Transparency = W
                        .Solid
                    End With
                End With
         End With
        ActiveSheet.Shapes("Cuadro" & name).Fill.Visible = msoFalse
        ActiveSheet.Shapes("Cuadro" & name).Line.Visible = msoFalse
        ActiveSheet.Shapes("Cuadro" & name).TextFrame2.AutoSize = msoAutoSizeShapeToFitText
        ActiveSheet.Shapes("Cuadro" & name).TextFrame2.WordWrap = msoTrue  'modif may 2023
    End If
End Sub
Sub InitVector(ByVal m, n As Integer)
' Procedure to add vectors to the spreadsheet. Specifically adding 9 rows to the first 3 columns to set up a vector
    '© 2022 A Becerra. ScienSolar.com
    Application.ScreenUpdating = False
    
'Segment InitVector-02. Define variables
    Dim Vname As String
    Dim lista As Range
    Dim Vcolor As Variant
    Dim VecType As Integer
    Dim m1 As Integer
    Dim n1 As Integer
    Dim flag As Boolean
    Dim FormatName As String
    Dim Lang As String
    
    m1 = m
    n1 = n
    Vname = Cells(m + 1, n + 1).Value   ' Name of the vector
    Vcolor = Cells(m + 1, n + 1).Interior.Color   ' Color of the vector
    If Application.Caller = "NewVector" Then
        VecType = 1  ' New vector button
    Else
        VecType = Cells(m + 1, n - 1).Value ' Vectors from project list
    End If
    If VecType < 2 Then
        Vname = InputBox("Enter a letter or short name for the vector:", "Vector", Vname)
        If Vname = "" Then
            Vname = Cells(m + 1, n + 1).Value
        End If
        Cells(m + 2, n + 12).Value = Cells(m + 2, n + 12).Value + 1 ' register the added vector
    End If
    Cells(m + 2, n + 9).Select
    Selection.FormulaR1C1 = "A" & "." & " " & "B" & "e" _
    & "c" & "e" & "r" & "r" & "a" & "  " & "B" & "."
    With Selection.Font
        .Color = Selection.Interior.Color
    End With
    
'Segment InitVector-02a. Set language of the control panel
    Set lista = Sheets("CONFIG").Cells.Find(What:="LENGUAJE")
    m2 = lista.Row
    n2 = lista.Offset(0, -1).Column
    Set lista = Nothing
    Lang = WorksheetFunction.VLookup(ActiveSheet.Cells(m - 1, n + 18).Value, Sheets("CONFIG").Range(Cells(m2, n2).Address(0, 0) & ":" & Cells(m2 + 14, n2 + 2).Address(0, 0)), 3, False)
     
'Segment InitVector-01. Count the current number of vectors in the spreadsheet
    i = 0
    flag = False
    Do While Cells(m + 4 + 9 * i, n - 1).Value <> ""
      If Cells(m + 4 + 9 * i, n).Value = "186" And VecType = 15 Then
        flag = True
      End If
        i = i + 1
    Loop
     
'Segment InitVector-03. Define vector parameters
    m = m + i * 9
    Cells(m + 1, n).Select
    PatronW = ActiveSheet.Cells(m + 3, n - 1).Width
    PatronH = ActiveSheet.Cells(m + 3, n - 1).Height
    PatronT = ActiveSheet.Cells(m + 3, n - 1).Top
     If flag = True Then GoTo NoVector

'Segment InitVector-03. Restrict values for data table cells
    Range(Cells(m + 10, n), Cells(m + 11, n)).Validation.Delete
    Range(Cells(m + 10, n), Cells(m + 11, n)).Validation.Add Type:=xlValidateWholeNumber, AlertStyle:=xlValidAlertStop, _
        Operator:=xlGreaterEqual, Formula1:="0"
    Range(Cells(m + 10, n), Cells(m + 11, n)).Validation.InputTitle = "DATA OUTPUT"
    Range(Cells(m + 10, n), Cells(m + 11, n)).Validation.InputMessage = "Enter the row and column number to generate " & " coordinates data during the simulation." & "The number ""0"" indicates that no data will be generated. Make sure that  " & "the cells do not intersect already occupied cells.  "
    Range(Cells(m + 10, n), Cells(m + 11, n)).Validation.ErrorMessage = "For rows or columns, you can only enter a positive integer."
    
'Segment InitVector-04. Set format
    ActiveSheet.Cells(m + 3, n).Select
    With Selection
        .Value = Vname
        .Font.Bold = True
        .HorizontalAlignment = xlCenter
        .VerticalAlignment = xlBottom
    End With

'Segment InitVector-05. Put the first button in cell A6
    ActiveSheet.Buttons.Add(PatronW * (n - 2), PatronT, PatronW / 3, PatronH).Select
    Selection.name = "Conf_" & Cells(m + 3, n - 1).Row
    Selection.OnAction = "VectorForm"
    Selection.Characters.Text = ChrW(9967)
    With Selection.Characters(Start:=1, Length:=3).Font
        .name = "Calibri"
        .FontStyle = "Normal"
        .Size = 11
        .Strikethrough = False
        .Superscript = False
        .Subscript = False
        .OutlineFont = False
        .Shadow = False
        .Underline = xlUnderlineStyleNone
        .ColorIndex = 1
    End With
    
'Segment InitVector-06. Put the second button in cell A6
    ActiveSheet.Buttons.Add(PatronW * (n - 4 / 3), PatronT, PatronW / 3, PatronH).Select
    Selection.name = Cells(m + 3, n - 1).Row
    Selection.OnAction = "ShowHideVecConf"
    Selection.Characters.Text = ChrW(9650)
    With Selection.Characters(Start:=1, Length:=3).Font
        .name = "Calibri"
        .FontStyle = "Normal"
        .Size = 11
        .Strikethrough = False
        .Superscript = False
        .Subscript = False
        .OutlineFont = False
        .Shadow = False
        .Underline = xlUnderlineStyleNone
        .ColorIndex = 1
    End With
    ActiveSheet.Cells(m + 3, n - 1).Select
    
'Segment InitVector-06a. Set parameters by default
    ActiveSheet.Cells(m + 3, n - 1).Value = i + 1 ' numero del vector
    ActiveSheet.Cells(m + 4, n - 1).Value = "1" ' menu desplegado
    ActiveSheet.Cells(m + 4, n).Value = "183" ' tipo de vector (forma)
    ActiveSheet.Cells(m + 5, n).Value = "1" ' tipo de linea
    ActiveSheet.Cells(m + 5, n).NumberFormat = """line:   "" 0.0 "
    ActiveSheet.Cells(m + 5, n + 1).Value = "0.3" ' transparencia
    ActiveSheet.Cells(m + 5, n + 1).NumberFormat = """transp.:   "" 0.0 "
    ActiveSheet.Cells(m + 5, n - 1).Value = 1 ' memoria de la cantidad de vectores campo
    ActiveSheet.Cells(m + 7, n - 1).Value = "0" 'componente x inicial
    ActiveSheet.Cells(m + 7, n).Value = "0" 'componente y inicial
    ActiveSheet.Cells(m + 7, n + 1).Value = "0" 'componente z inicial
    ActiveSheet.Cells(m + 9, n - 1).Value = "2" ' valor x del vector
    ActiveSheet.Cells(m + 9, n).Value = "2" ' valor y del vector
    ActiveSheet.Cells(m + 9, n + 1).Value = 2 * (i + 1) ' valor z del vector"
    ActiveSheet.Cells(m + 10, n - 1).Value = 1 ' cola del vector
    ActiveSheet.Cells(m + 10, n - 1).NumberFormat = """tail:   "" 0 "
    ActiveSheet.Cells(m + 10, n).Value = "0"
    ActiveSheet.Cells(m + 10, n).NumberFormat = """Dat row:   "" 0 "
    ActiveSheet.Cells(m + 10, n + 1).Value = "1"
    ActiveSheet.Cells(m + 10, n + 1).NumberFormat = """history:   "" 0 "
    ActiveSheet.Cells(m + 11, n - 1).Value = 3 ' cabeza del vector
    ActiveSheet.Cells(m + 11, n - 1).NumberFormat = """head:   "" 0 "
    ActiveSheet.Cells(m + 11, n).Value = "0" ' grosor
    ActiveSheet.Cells(m + 11, n).NumberFormat = """Dat col:   "" 0 "
    ActiveSheet.Cells(m + 11, n + 1).Value = 1 ' grosor del vector
    ActiveSheet.Cells(m + 11, n + 1).NumberFormat = """thickness:   "" 0 "  ' grosor del vector
    ActiveSheet.Cells(m + 8, n + 2).FormulaR1C1 = "=IF(R[-4]C[-1]>1,"" <-- Variable coordinates"","""")"
    ActiveSheet.Cells(m + 9, n + 2).FormulaR1C1 = "=IF(R[-5]C[-1]>1,"" <-- Field formulae"","""")"
    ActiveSheet.Cells(m + 7, n - 1).FormulaR1C1 = "=R[-7]C+R[-9]C" 'posiciones iniciales del vector = final del vector anterior
    ActiveSheet.Cells(m + 7, n).FormulaR1C1 = "=R[-7]C+R[-9]C"
    ActiveSheet.Cells(m + 7, n + 1).FormulaR1C1 = "=R[-7]C+R[-9]C"
    
'Segment InitVector-07. Control panel format
    Range(Cells(m + 3, n - 1), Cells(m + 11, n + 1)).Select
    With Selection.Borders(xlEdgeLeft)
        .LineStyle = xlContinuous
        .ThemeColor = 2
        .TintAndShade = 0.249977111117893
        .Weight = xlThick
    End With
    With Selection.Borders(xlEdgeTop)
        .LineStyle = xlContinuous
        .ThemeColor = 2
        .TintAndShade = 0.249977111117893
        .Weight = xlThick
    End With
    With Selection.Borders(xlEdgeBottom)
        .LineStyle = xlContinuous
        .ThemeColor = 2
        .TintAndShade = 0.249977111117893
        .Weight = xlThick
    End With
    With Selection.Borders(xlEdgeRight)
        .LineStyle = xlContinuous
        .ThemeColor = 2
        .TintAndShade = 0.249977111117893
        .Weight = xlThick
    End With
        With Selection
        .HorizontalAlignment = xlCenter
    End With
    Cells(m + 3, n + 1).Select
    With Selection.Borders(xlEdgeLeft)
        .LineStyle = xlContinuous
        .ThemeColor = 2
        .TintAndShade = 0.249977111117893
        .Weight = xlThick
    End With
    With Selection.Borders(xlEdgeTop)
        .LineStyle = xlContinuous
        .ThemeColor = 2
        .TintAndShade = 0.249977111117893
        .Weight = xlThick
    End With
    With Selection.Borders(xlEdgeBottom)
        .LineStyle = xlContinuous
        .ThemeColor = 2
        .TintAndShade = 0.249977111117893
        .Weight = xlThick
    End With
    With Selection.Borders(xlEdgeRight)
        .LineStyle = xlContinuous
        .ThemeColor = 2
        .TintAndShade = 0.249977111117893
        .Weight = xlThick
    End With
    Cells(m + 4, n + 1).Select
    With Selection.Borders(xlEdgeLeft)
        .LineStyle = xlDashDot
        .ThemeColor = 2
        .TintAndShade = 0.249977111117893
        .Weight = xlThin
    End With
    With Selection.Borders(xlEdgeTop)
        .LineStyle = xlDashDot
        .ThemeColor = 2
        .TintAndShade = 0.249977111117893
        .Weight = xlThin
    End With
    With Selection.Borders(xlEdgeBottom)
        .LineStyle = xlDashDot
        .ThemeColor = 2
        .TintAndShade = 0.249977111117893
        .Weight = xlThin
    End With
    With Selection.Borders(xlEdgeRight)
        .LineStyle = xlDashDot
        .ThemeColor = 2
        .TintAndShade = 0.249977111117893
        .Weight = xlThin
    End With
    Range(Cells(m + 4, n - 1), Cells(m + 11, n + 1)).Select
    With Selection.Interior
        .Pattern = xlSolid
        .PatternColorIndex = xlAutomatic
        .ThemeColor = xlThemeColorAccent6
        .TintAndShade = 0.799981688894314
        .PatternTintAndShade = 0
    End With
    With Selection.Font
        .ThemeColor = xlThemeColorLight1
        .TintAndShade = 0
    End With
    Range(Cells(m + 3, n - 1), Cells(m + 3, n)).Select
    With Selection.Interior
        .Pattern = xlSolid
        .PatternColorIndex = xlAutomatic
        .ThemeColor = xlThemeColorAccent6
        .TintAndShade = 0.799981688894314
        .PatternTintAndShade = 0
    End With
    With Selection.Font
        .ThemeColor = xlThemeColorLight1
        .TintAndShade = 0
    End With
    Application.Union(Range(Cells(m + 7, n - 1), Cells(m + 7, n + 1)), Range(Cells(m + 9, n - 1), Cells(m + 9, n + 1))).Select
    With Selection.Interior
        .Pattern = xlSolid
        .PatternColorIndex = xlAutomatic
        .ThemeColor = xlThemeColorAccent6
        .TintAndShade = -0.249977111117893
        .PatternTintAndShade = 0
    End With
    With Selection.Font
        .ThemeColor = xlThemeColorDark1
        .TintAndShade = 0
    End With
    Cells(m + 3, n + 1).Select ' Color for each vector (different color).
    With Selection.Interior
        .Pattern = xlSolid
        .PatternColorIndex = xlAutomatic
        .ThemeColor = xlThemeColorLight1
        .TintAndShade = 0.5
        .Color = RGB(Int((255 * Rnd) + 1), Int((255 * Rnd) + 1), Int((1 * Rnd) + 255))
        .PatternTintAndShade = 0
    End With
    Cells(m1 + 1, n1 + 1).Value = "A" & Cells(m + 3, n - 1).Value + 1
NoVector:

'Segment InitVector-08.Download projects from the project list
    Lang = "_" & Lang
    If VecType = 2 Then Lang = ""
    If VecType = 15 Then Lang = ""
    
    If VecType > 1 Then
        Dim strMacro As String
        strMacro = "Project_" & VecType & Lang
        Application.Run strMacro, VecType, m, n, m1, n1
    End If

    Application.ScreenUpdating = True
End Sub
    Sub AddNewVector()
    '© 2022 A Becerra. ScienSolar.com
    Dim fila As Range
    Dim m As Integer
    Dim n As Integer
    Dim A As Integer
    
    Set fila = ActiveSheet.Cells.Find(What:="INICIO")
    m = fila.Offset(1, 0).Row
    n = fila.Offset(1, 1).Column
    Set fila = Nothing
    
    Call InitVector(m, n)
    End Sub
Sub VectorOutput(m, n, s, cod As Integer, Y_abs, Z_abs, xS As Single, T_color As Double)
'© 2022 A Becerra. ScienSolar.com
'Procedure to Display a single vector in XYZ
'Segment VectorOutput-01. Vector parameters variables
    Dim T_top
    Dim T_left
    Dim T_name
    Dim T_label
    Dim L_width As Single
    Dim L_height As Single
    Dim Lo_width As Single
    Dim Lo_height As Single
    Dim HeightColor As Variant
    Dim sh As Object
    Dim Module As Double
    T_name = ActiveSheet.Cells(m + 3, n).Value & ActiveSheet.Cells(m + 3, n - 1).Value
    T_label = ActiveSheet.Cells(m + 3, n).Value
    Lox = ActiveSheet.Cells(m + 7, n - 1).Value * xS  'Position of the vector in X. Obs. :it is not the component of L (axes) but of an arbitrary vector
    Loy = ActiveSheet.Cells(m + 7, n).Value * xS 'Position of the vector in Y. Obs. :it is not the component of L (axes) but of an arbitrary vector
    Loz = ActiveSheet.Cells(m + 7, n + 1).Value * xS 'Position of the vector in X. Obs. :it is not the component of L (axes) but of an arbitrary vector
    Lx = ActiveSheet.Cells(m + 9, n - 1).Value * xS 'Compponent in X of the vector
    Ly = ActiveSheet.Cells(m + 9, n).Value * xS 'Compponent in Y of the vector
    Lz = ActiveSheet.Cells(m + 9, n + 1).Value * xS ''Compponent in Z of the vector
    Module = Sqr((Lx / xS) ^ 2 + (Ly / xS) ^ 2 + (Lz / xS) ^ 2) ' Module of the vector
    
'Segment VectorOutput-02. If the size of the vector exceeds the size of the axes, then regulate its length with the help of a function and  parameters entered by the user (>15)
    If Cells(m + 5, n).Value > 15 Then
        Dim L_ref As Single ' Max lenght of the vector(first parameter)
        Dim L_tau As Single ' How the lenght of the vectors changes.
        L_ref = Left(Cells(m + 5, n).Value, InStr(1, Cells(m + 5, n).Value, "*", 0) - 1) - 14
        L_tau = L_ref * Mid(Cells(m + 5, n).Value, InStr(1, Cells(m + 5, n).Value, "*", 0) + 1)
        Lx = L_ref * (1 - 1 / Exp(Abs(Lx / L_tau))) * Lx / Module / xS ' updated 07-2024, added / xS in order to big scales to work properly.
        Ly = L_ref * (1 - 1 / Exp(Abs(Ly / L_tau))) * Ly / Module / xS
        Lz = L_ref * (1 - 1 / Exp(Abs(Lz / L_tau))) * Lz / Module / xS
        ActiveSheet.Range("K6").Value = "Some vectors have been R E D U C E D!  Set the scale in cell " & Cells(m + 5, n).Address(0, 0)
    End If
    L_width = Cos(A) * (Lx * Sin(c) + Ly * Cos(c)) - Sin(A) * (-Sin(B) * (Lx * Cos(c) - Ly * Sin(c)) + Lz * Cos(B))
    L_height = Sin(A) * (Lx * Sin(c) + Ly * Cos(c)) + Cos(A) * (-Sin(B) * (Lx * Cos(c) - Ly * Sin(c)) + Lz * Cos(B))
    Lo_width = Cos(A) * (Lox * Sin(c) + Loy * Cos(c)) - Sin(A) * (-Sin(B) * (Lox * Cos(c) - Loy * Sin(c)) + Loz * Cos(B))
    Lo_height = Sin(A) * (Lox * Sin(c) + Loy * Cos(c)) + Cos(A) * (-Sin(B) * (Lox * Cos(c) - Loy * Sin(c)) + Loz * Cos(B))
        
'Segment VectorOutput-03. Data storage to graph trajectory.
    If Cells(m + 3, n - 1).Value = Sheets("CONFIG").Range("V6").Value Then  ' Verify that the current is the vector to be graphed
        Sheets("CONFIG").Range("V6").Offset(1, -1).Value = "DATOS DE LA FORMA LIBRE - puntos horizontales y verticales"
        Z = 1
        Do While Sheets("CONFIG").Cells(6 + Z, 21).Value <> ""
            Z = Z + 1
        Loop
        Sheets("CONFIG").Cells(6 + Z, 21).Value = Lo_width + L_width 'Cell where the y coordinate of each point of the free form is stored
        Sheets("CONFIG").Cells(6 + Z, 22).Value = -Lo_height - L_height 'Cell where the z coordinate of each point is stored
       'Stops plotting after set value of steps
        If Z - 2 > Sheets("CONFIG").Range("T5") Then
            Sheets("CONFIG").Columns("U:V").ClearContents
            ActiveSheet.Range(ActiveSheet.Buttons("ResetGraph").TopLeftCell.Offset(1, 1).Address).Value = 2 'it does not erase the graph already drawn
        End If
    End If
        
'Segment VectorOutput-04. Selection of the shape according to cod.
    If cod < 0 Then
        cod = -cod
        L_width = Cells(m + 9, n) * xS
        L_height = Cells(m + 9, n + 1) * xS
        Lo_width = Cells(m + 7, n) * xS
        Lo_height = Cells(m + 7, n + 1) * xS
    End If
        
'Segment VectorOutput-05. Graphic case. Draw a freeform with the points collected in Segment VectorOutput-03.
    If cod = 186 Then
        With ActiveSheet.Shapes.BuildFreeform(msoEditingAuto, Y_abs + Sheets("CONFIG").Cells(8, 21).Value, Z_abs + Sheets("CONFIG").Cells(8, 22).Value)
            i = 1
            Do While Sheets("CONFIG").Cells(7 + i, 21) <> ""
                .AddNodes msoSegmentCurve, msoEditingAuto, Y_abs + Sheets("CONFIG").Cells(7 + i, 21).Value, Z_abs + Sheets("CONFIG").Cells(7 + i, 22).Value
                i = i + 1
            Loop
            .ConvertToShape.name = "campo0" ' crea una forma de tipo 5
        End With
    Else ' if not 186
        
'Segment VectorOutput-06 Integrate a 3D object. To integrate a 3D object enter code 200.
        If cod = 200 Or cod = 201 Then 'Number for 3D objects. The name of the 3D object must be in the vector name cell and the object must be in the 3D Models spreadsheet.
            Dim name3D As String
            name3D = Cells(m + 3, n).Value
            If Cells(m + 3, n + 1) <> "" And Cells(m + 3, n + 1).Value <> name3D Then
                ActiveSheet.Shapes(Cells(m + 3, n + 1).Value).Delete
            End If
            CheckExists (name3D)
            If CheckExists(name3D) = False Then
                Sheets("3DModels").Shapes(name3D).Copy
                ActiveSheet.Paste
                Cells(m + 3, n + 1).Select
                Selection.Value = name3D
            Else
                If s > 1 Then
                    ActiveSheet.Shapes(Cells(m + 3, n).Value).Copy
                    ActiveSheet.Paste
                    Selection.name = "campo" & Cells(m + 3, n - 1).Value & "_" & s
                    name3D = "campo" & Cells(m + 3, n - 1).Value & "_" & s
                End If
            End If
            With ActiveSheet.Shapes(name3D)
                If .Type = 30 Or .Type = 13 Then ' 30 for Mac 13 for Win. Only for 3D objects
                    If Left(Application.Version, 2) < 16 Then ' Warning about old Excel vrsions
                        Range("N10").Value = "(Your version of Excel may not support 3D models. Please, update to 2019 or later!!)"
                    End If
                    .Width = -1 ' To fix error
                    If Cells(m + 5, n).Value > 0 Then
                        .Width = Cells(m + 5, n) * xS
                        .Height = Cells(m + 5, n) * xS
                        Cells(m + 5, n + 1).Value = Cells(m + 5, n).Value
                    End If
                Else ' Other objects
                    Cells(m + 3, n + 1).Value = ""
                    If .Type = 17 Then ' To color formulas.
                        .TextFrame2.TextRange.Font.Fill.ForeColor.RGB = Cells(m + 3, n + 1).Interior.Color
                    End If
                End If
                If cod = 201 Then 'Freeze size in text area
                    .Left = Y_abs + ActiveSheet.Cells(m + 7, n).Value
                    .Top = Z_abs - ActiveSheet.Cells(m + 7, n + 1).Value
                Else
                    .Left = Y_abs + Lo_width
                    .Top = Z_abs - Lo_height
                    .Model3D.RotationX = ActiveSheet.Range("G5").Value + ActiveSheet.Cells(m + 6, n - 1).Value
                    .Model3D.RotationY = -ActiveSheet.Range("G6").Value + ActiveSheet.Cells(m + 6, n).Value
                    .Model3D.RotationZ = -ActiveSheet.Range("G4").Value + ActiveSheet.Cells(m + 6, n + 1).Value
                End If
            End With
            'If s = 1 Then
                'Selection.name = ActiveSheet.Cells(m + 3, n) 'Comment to get story
            'End If
            ActiveSheet.Cells(m + 5, n).Value = 0
        Else ' neither 200 nor 201
            Set sh = ActiveSheet.Shapes.AddShape(cod, Y_abs, Z_abs, 20, 40) 'otras formas
            sh.name = "campo0"
        End If
    End If ' end if 186
        
'Segment VectorOutput-07. Vector appearance.
    HeightColor = Cells(m + 3, n + 1).Interior.Color
    If ActiveSheet.Cells(m + 4, n + 1).Value <> "" Then ' updated 05-2023
        Atemp = InStr(ActiveSheet.Cells(m + 4, n + 1).Value, "color=") + 7 ' updated 05-2023
        Btemp = InStr(Atemp, ActiveSheet.Cells(m + 4, n + 1).Value, "]", 1)
        Ctemp = Btemp - Atemp ' May 2023
        RedCod = Format((HeightColor Mod 256), "00") 'Current color
        GreenCod = Format(((HeightColor \ 256) Mod 256), "00") 'Current color
        BlueCod = Format((HeightColor \ 65536), "00") 'Current color
       ' Color according to the magnitude of the vector:
        Lmax = Mid(ActiveSheet.Cells(m + 4, n + 1).Value, Atemp, Ctemp)
        If Lmax = "0" Then ' Leave current color
            HeightColor = Cells(m + 3, n + 1).Interior.Color
        Else ' Gradient
            If Module < Lmax / 4 Then
                HeightColor = RGB(255, _
                Abs(Left(Round(Module * 255 / (Lmax / 4), 0), 3)), _
                0)
            End If
            If Module > Lmax / 4 And Module < Lmax / 2 Then
                HeightColor = RGB(Abs(255 - Left(Round(Module * 255 / (Lmax / 4), 0), 3)), _
                255, _
                0)
            End If
            If Module > Lmax / 2 And Module < Lmax * 3 / 4 Then
                HeightColor = RGB(0, _
                255, _
                Abs(Left(Round(Module * 255 / (Lmax / 4), 0), 3)))
            End If
            If Module > Lmax * 3 / 4 Then
                HeightColor = RGB(0, _
                Abs(255 - Left(Round(Module * 255 / (Lmax / 4), 0), 3)), _
                255)
            End If
        End If
    End If
        
'Segment VectorOutput-08. If it is not a vector but a point. set dimensions = 1.
    If cod = 146 Or cod = 9 Then ' updated 04.2024
        L_width = 1
        L_height = 1
    End If
        
    'Vector properties
    On Error Resume Next ' no todas las propiedades aplican para todas las formas
    With ActiveSheet.Shapes.Range(Array("campo0")) ' apariencia del vector
        .Line.BeginArrowheadStyle = Cells(m + 10, n - 1).Value
        .Line.EndArrowheadStyle = Cells(m + 11, n - 1).Value
        .Line.ForeColor.RGB = HeightColor
        .Line.Transparency = Cells(m + 5, n + 1).Value
        .Line.DashStyle = Cells(m + 5, n).Value
        .Line.Weight = Cells(m + 11, n + 1).Value
        
        'Complementary properties of other forms.
         If cod < 183 Then
            .TextFrame2.TextRange.Characters.Text = Cells(m + 6, n - 1).Value
            .Fill.ForeColor.RGB = HeightColor ' color de relleno
            '.TextFrame2.TextRange.Font.Fill.ForeColor.RGB = Cells(m + 3, n + 1).Font.Color. Uncomment to color frame
            .TextFrame2.TextRange.Font.Size = Cells(m + 3, n + 1).Value
            .ShapeRange.TextFrame2.WordWrap = msoTrue
            .ShapeRange.TextFrame2.AutoSize = msoAutoSizeShapeToFitText
            .Fill.Transparency = Cells(m + 5, n + 1).Value
            ' The position of the arrow head for shapes 109-114 is indicated in row =Cells(m + 6, n) and column =Cells(m + 6, n + 1), text =Cells(m + 6, n - 1)
            .Adjustments.Item(4) = -(Y_abs - (Cells(m + 6, n + 1).Value - 0.5) * 65 + Cells(m + 7, n).Value * xS) / (Cells(m + 9, n).Value * xS) ' arrow position, if applicable
            .Adjustments.Item(3) = 1 - (Z_abs - Cells(m + 6, n).Value * 15 - Cells(m + 7, n + 1).Value * xS) / (Cells(m + 9, n + 1).Value * xS) 'arrow position, if applicable
         End If
    End With
        
'Segment VectorOutput-09. Rename the vector and set position of the shape.
    With ActiveSheet.Shapes("campo0")
            .name = "campo" & Cells(m + 3, n - 1).Value & "_" & s
            If cod > 183 Then  ' Free form case
                'do nothing for a free form (graphic)
            Else
                .Width = Abs(L_width)
                .Height = Abs(L_height)
                .Left = Y_abs + Lo_width
                .Top = Z_abs - Lo_height - L_height
                If L_width < "0" Then
                    .Left = .Left + L_width
                    .Flip msoFlipHorizontal
                    T_left = .Left - L_width / 2
                Else
                    T_left = .Left + L_width / 2
                End If
                If L_height < "0" Then
                    .Top = .Top + L_height
                    .Flip msoFlipVertical
                    T_top = .Top - L_height / 2
                Else
                    T_top = .Top + L_height / 2
                End If
            End If ' End of cod > 183
    End With
    
'Segment VectorOutput-10. Create the vector label.
    If T_label <> "" Then
        If s = 1 And cod <> 200 Then
            Call CreateLabel(T_left, T_top, Cells(m + 5, n + 1).Value, 20, T_color, T_name, T_label)
        End If
    End If
    Set sh = Nothing
End Sub
Sub CheckIfProjectExists()

'Segment CheckIfProjectExists-01. Define variables

    Dim MyModule As Object
    Dim MyModuleName As String
    Dim MySubReference As String
    Dim MySub As String
    Dim MyLine As Long
    Dim MyLine1 As Long
    Dim ProjLongName As String
    Dim VBAComp As Variant
    Dim ProjLang As String
    Dim i As Integer
    Dim ProjInList As String
    Dim flag As Boolean
    Dim LangCode As Integer
    LangCode = Worksheets("CONFIG").Cells(2, 17).Value
    ProjLang = WorksheetFunction.VLookup(LangCode, Worksheets("CONFIG").Range("P3:R14"), 3)
    MySubReference = Range("A4").Value
    flag = False
    i = 0
    
'Segment CheckIfProjectExists-02. Find modules in VBA and get names

    For Each VBAComp In ThisWorkbook.VBProject.VBComponents
        If VBAComp.Type = 1 Or VBAComp.Type = 2 Or VBAComp.Type = 3 Then
            MyModuleName = VBAComp.name
            On Error Resume Next
            Set MyModule = ActiveWorkbook.VBProject.VBComponents(MyModuleName).CodeModule
            If Err.Number <> 0 Then
                MsgBox ("Module : " & MyModuleName & vbCr & "does not exist.")
                Exit Sub
            Else
            
'Segment CheckIfProjectExists-03. In each module find projects and verify non-existing  code for projects to remark them in CONFIG

                For j = 1 To 100
                    MySub = "Project_" & j & "_" & ProjLang
                    MyLine1 = 0
                    MyLine1 = MyModule.procStartLine(MySub, vbext_pk_Proc)
                        If MyLine1 <> 0 Then
                            If i < j - 1 Then
                                For i = i To j - 2
                                    If i < 3 Or i = 14 Then
                                        If i = 14 Then Worksheets("CONFIG").Cells(33 + i, 4 + LangCode).Value = "TRAJECTORY"
                                    Else
                                        Worksheets("CONFIG").Cells(33 + i, 4 + LangCode).Value = "-- Empty --"
                                    End If
                                Next i
                            End If
                            
'Segment CheckIfProjectExists-04. Configure how the project title automatically appears in the project list.
    '...Lines(MyLine1, 5), 5 is the number of lines to take into account after the comment to capture the title. If no title appears it may be because there is too much space between Sub and Sub.
    '...vbTextCompare) + 7, 25) 7 = initial character from the parenthesis before the apostrophe; 25 = final character. example: Sub Project_30_EN(ByVal VecType, m, n, m1, n1 As Integer) '  30_Field of nuclear particl

                            If Worksheets("CONFIG").Cells(33 + i, 4 + LangCode).Value = "" Or Worksheets("CONFIG").Cells(33 + i, 4 + LangCode).Value = "-- Empty --" Then
                                ProjLongName = Mid(MyModule.Lines(MyLine1, 5), InStr(50, MyModule.Lines(MyLine1, 5), ")", vbTextCompare) + 7, 25)
                                Worksheets("CONFIG").Cells(33 + i, 4 + LangCode).Value = Replace(ProjLongName, Chr(10), "", 1, -1)
                            End If
                            i = j
                        End If
                        
'Segment CheckIfProjectExists-05. Check if the selected project exists (true)

                        If flag = True Then GoTo siguiente
                        If MySub = "Project_" & MySubReference & "_" & ProjLang Then
                            MyLine = MyModule.procStartLine(MySub, vbext_pk_Proc)
                            If MyLine <> 0 Then
                                flag = True
                            End If
                        End If
siguiente:
                Next j
            End If
        End If
    Next
    
'Segment CheckIfProjectExists-05. Review and correct the numbers in the project list in CONFIG and notify if the project you are trying to download does not exist.

    For j = 2 To i
        Worksheets("CONFIG").Cells(32 + j, 3).Value = j
        Worksheets("CONFIG").Cells(32 + j, 2).FormulaR1C1 = "=HLOOKUP(R2C17,R33C5:R150C11,RC[1])"
    Next j
    Worksheets("CONFIG").Range(Worksheets("CONFIG").Cells(32 + i + 1, 3), Worksheets("CONFIG").Cells(32 + i + 100, 3)).Clear
    Worksheets("CONFIG").Range(Worksheets("CONFIG").Cells(32 + i + 1, 3), Worksheets("CONFIG").Cells(32 + i + 100, 2)).Clear
    If MyLine = 0 And MySubReference <> "" Then
        MsgBox "The project code " & MySubReference & " does not exist. "
    End If
End Sub