Extend and Trim Objects

Transform Objects

Edit Objects

Explode Objects

 

Create and Edit AutoCAD Entities > Edit Objects > 

Extend and Trim Objects

You can change the angle of arcs and you can change the length of open lines, arcs, open polylines, elliptical arcs, and open splines. The results are similar to both extending and trimming objects.

You can extend or trim an object by editing its properties. For example, to lengthen a line, simply change the coordinates of the StartPoint or EndPoint properties. To change the angle of an arc, change the StartAngle or EndAngle property of the arc. Once you have altered an object's property or properties, use the Update method to see your changes in the drawing.

For more information about extending and trimming objects, see “Resize or Reshape Objects” in the User's Guide.

Sub Ch4_LengthenLine()

    ' Define and create the line

    Dim lineObj As AcadLine

    Dim startPoint(0 To 2) As Double

    Dim endPoint(0 To 2)  As Double

    startPoint(0) = 0

    startPoint(1) = 0

    startPoint(2) = 0

    endPoint(0) = 1

    endPoint(1) = 1

    endPoint(2) = 1

    Set lineObj = ThisDrawing.ModelSpace. _

 AddLine(startPoint, endPoint)

    lineObj.Update

      
    ' Lengthen the line by changing the
      
    ' endpoint to 4, 4, 4
      
    endPoint(0) = 4
      
    endPoint(1) = 4
      
    endPoint(2) = 4
      
    lineObj.endPoint = endPoint
      
    lineObj.Update
      
End Sub