The previous week I published a VBA code for drawing circles in AutoCAD using data from an Excel workbook. Since I received several email requests from various blog readers, I decided to continue the subject of AutoCAD automation from Excel. So, below you will find a VBA code that will help you “send” text strings from Excel to a specific location in an AutoCAD drawing. The code might be extremely useful for filling the information in a drawing legend (watch the demonstration video for example).
The code is based on the AddText method. According to AutoCAD VBA help, the structure of this method is the following:
RetVal = object.AddText(TextString, InsertionPoint, Height)
RetVal: Text object. The newly created Text object.
Object: ModelSpace Collection, PaperSpace Collection, Block – the objects this method applies to.
TextString: String; input-only. The actual text to be displayed.
InsertionPoint: Variant (three-element array of doubles); input-only. The 3D WCS coordinates on the drawing where the text is placed.
Height: Double; input-only. The height of the text. It must be a positive number.
The sample workbook that you will find in the Downloads section below requires three main user inputs (as the AddText method), as well as four optional: the coordinates of the insertion point (in X, Y, Z) – in other words, where you want the newly created text to be inserted, the text height (like font size) and the text message that should be displayed in the drawing. Then, by clicking the “Add Text” button the text is inserted either in the active drawing (if AutoCAD is already lunched), or in a newly created drawing. The optional parameters give additional functionality, so you can adjust the alignment, the rotation angle, the width factor and the color of the text to be inserted.
VBA code to add text in AutoCAD from Excel
Similar to the circle case, almost half of the code is used to initialize the AutoCAD object, as well as the active/new drawing object.
Option Explicit Sub AddText() '---------------------------------------------------------------------------------------------------------------- 'This macro adds text in AutoCAD using data - insertion point, text height and text message - from Excel. 'Moreover, it provides some optional parameters, so that the user can adjust the alignment, the rotation angle, 'the width factor and the color of the text to be inserted (using the Red, Green and Blue parameters). 'The code uses late binding, so no reference to external AutoCAD (type) library is required. 'It goes without saying that AutoCAD must be installed at your computer before running this code. 'Written By: Christos Samaras 'Date: 07/03/2014 'Last Update: 16/03/2015 'E-mail: [email protected] 'Site: http://www.myengineeringworld.net '---------------------------------------------------------------------------------------------------------------- 'Declaring the necessary variables. Dim acadApp As Object Dim acadDoc As Object Dim acadText As Object Dim acadColor As Object Dim LastRow As Long Dim i As Long Dim InsertionPoint(0 To 2) As Double Dim ZeroPoint(0 To 2) As Double 'Activate the coordinates sheet and find the last row. With Sheets("Coordinates") .Activate LastRow = .Cells(.Rows.Count, "A").End(xlUp).Row End With 'Check if there are coordinates for at least one text message. If LastRow < 2 Then MsgBox "There are no coordinates for the insertion point!", vbCritical, "Insertion Point Error" Exit Sub End If 'Check if AutoCAD application is open. If is not opened create a new instance and make it visible. On Error Resume Next Set acadApp = GetObject(, "AutoCAD.Application") If acadApp Is Nothing Then Set acadApp = CreateObject("AutoCAD.Application") acadApp.Visible = True End If 'Check (again) if there is an AutoCAD object. If acadApp Is Nothing Then MsgBox "Sorry, it was impossible to start AutoCAD!", vbCritical, "AutoCAD Error" Exit Sub End If On Error GoTo 0 'If there is no active drawing create a new one. On Error Resume Next Set acadDoc = acadApp.ActiveDocument If acadDoc Is Nothing Then Set acadDoc = acadApp.Documents.Add End If On Error GoTo 0 'Check if the active space is paper space and change it to model space. If acadDoc.ActiveSpace = 0 Then '0 = acPaperSpace in early binding acadDoc.ActiveSpace = 1 '1 = acModelSpace in early binding End If 'Set the AcCmColor object (here acadColor) which represents colors. Set acadColor = acadApp.GetInterfaceObject("AutoCAD.AcCmColor." & Left(acadApp.Version, 2)) 'The point at the beginning of 3 axes. ZeroPoint(0) = 0 ZeroPoint(1) = 0 ZeroPoint(2) = 0 'Loop through all the rows and add the corresponding text in AutoCAD. With Sheets("Coordinates") For i = 2 To LastRow 'If the height and the message are not empty, add the text. If IsEmpty(.Range("D" & i)) = False And IsEmpty(.Range("E" & i)) = False Then 'Set the insertion point. InsertionPoint(0) = .Range("A" & i).Value InsertionPoint(1) = .Range("B" & i).Value InsertionPoint(2) = .Range("C" & i).Value 'Add the text. Set acadText = acadDoc.ModelSpace.AddText(.Range("E" & i), InsertionPoint, .Range("D" & i)) 'Align the text based on alignment selection. The default is left. If IsEmpty(.Range("F" & i)) = False Then If UCase(.Range("F" & i)) = "CENTER" Then acadText.Alignment = 1 acadText.Move ZeroPoint, InsertionPoint End If If UCase(.Range("F" & i)) = "RIGHT" Then acadText.Alignment = 2 acadText.Move ZeroPoint, InsertionPoint End If End If 'If the rotation angle is not empty, rotate the text. '0.0174532925 is used to convert from degrees to radians. If IsEmpty(.Range("G" & i)) = False Then acadText.Rotate InsertionPoint, .Range("G" & i).Value * 0.0174532925 'If the width factor is not empty, apply the width factor. If IsEmpty(.Range("H" & i)) = False Then acadText.ScaleFactor = .Range("H" & i) 'Use the sheet data to change the color on each line of text (if the corresponding cells are not empty). If IsEmpty(.Range("I" & i)) = False And IsEmpty(.Range("J" & i)) = False And IsEmpty(.Range("K" & i)) = False Then Call acadColor.SetRGB(.Range("I" & i), .Range("J" & i), .Range("K" & i)) 'Change the color of text. acadText.TrueColor = acadColor End If End If Next i End With 'Zoom in to the drawing area. acadApp.ZoomExtents 'Release the objects. Set acadText = Nothing Set acadDoc = Nothing Set acadApp = Nothing 'Inform the user about the process. MsgBox "The text was successfully added in AutoCAD!", vbInformation, "Finished" End Sub
Note that if you have AutoCAD 2010 or a newer version, you will have to download and install the VBA module, otherwise the code will probably fail.
- AutoCAD 2010 VBA module 32-bit
- AutoCAD 2010 VBA module 64-bit
- AutoCAD 2011 VBA module 32-bit
- AutoCAD 2011 VBA module 64-bit
- AutoCAD 2012 VBA module 32-bit
- AutoCAD 2012 VBA module 64-bit
- AutoCAD 2013 VBA module 32-bit
- AutoCAD 2013 VBA module 64-bit
- AutoCAD 2014 VBA module 32-bit
- AutoCAD 2014 VBA module 64-bit
- AutoCAD 2015 VBA module 32-bit
- AutoCAD 2015 VBA module 64-bit
All links were copied from Autodesk‘s website.
The short video below demonstrates the result of the above VBA code. Seven lines of text are inserted in the legend of this sample drawing. Each line has a different color, scale factor, and alignment, while the rotation angle for all lines was set to zero.
The file can be opened with Excel 2007 or newer. Please enable macros before using it.