2D Polygon generation w/VBA

IF I use Addline... then UPDATE... see the modifications in drawing... IMMEDIATELY...
IF I use SendCommand (POLYGON)... then UPDATE... The modifications are NOT IMMEDIATE...
BUT when I go back to the Drawing... MODIFICATION are THERE... SEE VBA CODE...
'==============================================
Private Sub CommandButton4_Click()
' This example adds an DECAGON in model space... 10 SIDES POLYGON...
Dim alineObj As AcadLine
Dim startline(0 To 2) As Double '0=X...1=Y...2=Z
Dim endline(0 To 2) As Double
'================================================
Set acadObj = GetObject(, "AutoCAD.Application") 'Set up old OBJECTS..
Set AcadDoc = acadObj.ActiveDocument 'Set up old DOCUMENTS...
'================================================
' Define data for new DECAGON base (box) '====== Begin at UCS Point =====
ThisDrawing.SendCommand ("_POLYGON 10 e 0 2 ") 'Draws Polygon Perfectly
acadObj.Update 'Will NOT UPDATE
ThisDrawing.Application.ZoomExtents 'ZOOMS PERFECT
'===================END OF PROGRAMMING =======
End Sub

 

I think the problem is that with some commands SendCommand executes immediately but with a lot they do not execute until the code has finished.

I see your code is making a 10 sided polgon. How many polygon variations do you need to create? I know it will be a lot more complicated but would it be possible to calculate the corners of the polygon and use the AddLightweightPolyline method.

Good Luck - Nathan

 

The problem is that SendCommand is asynchronous and is not processing before
your call Update. If your form is modal it wont execute at all until you
dismiss it. See if the following works for you:

Me.Hide ' added to your code

ThisDrawing.SendCommand ("_POLYGON 10 e 0 2 ") 'Draws Polygon
Perfectly
acadObj.Update 'Will NOT UPDATE
ThisDrawing.Application.ZoomExtents 'ZOOMS PERFECT

Me.Show 1 ' added to your code

Basically it just removes the modal dialog and re-displays it. I highly
recommend you do not use SendCommand whenever possible.

- Jorge

 

THANKS... Works for me.. (ME.SHOW 1)... GREAT...