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MicroStation Wiki Replacing Points with Circles Using VBA
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    Replacing Points with Circles Using VBA

       
      Applies To 
       
      Product(s): MicroStation
      Version(s): 08.11.09.578
      Environment:  Windows 7 32 bit,Windows 7 64 bit
      Area:  Programming
      Subarea:  VBA
      Original Author: Tristan Anderson, Bentley Technical Support Group
       

    Background Information

    When importing coordinates, they can often be represented by points. The problem with this is that they can be hard to see in the drawing because they are so small.

    Therefore, it would be desireable to have an alternate representation of points in a drawing.

    Steps

    I will show a small routine here that replaces all of the points with circles. The size of the circle is defined in the program and can easily be adapted to your own needs. The points are displayed in MicroStation by lines of longitude 0. Therefore, the routine will search through the drawing to find all lines of length 0 and replace them with circles.

    Here is the example:

    Sub line2circle()
        Dim Ee As ElementEnumerator
        Dim Sc As New ElementScanCriteria
        Dim Anzahl As Long   ' Counter for the deleted items
        Dim oCirc As EllipseElement
         
        ' Ellipse (A circle is a special case of an ellipse) to exchange the points:
        Dim oElli As Ellipse3d
        oElli.Vector0 = Point3dFromXYZ(0, 0.5, 0)
        oElli.Vector90 = Point3dFromXYZ(0.5, 0, 0)
        oElli.Start = 0
        oElli.Sweep = 2 * Pi
         
         
        ' If the line length is 0 it will be changed:
        Sc.ExcludeAllTypes
        Sc.IncludeType msdElementTypeLine
        Set Ee = ActiveModelReference.Scan(Sc)
        Do While Ee.MoveNext
            If Ee.Current.AsLineElement.Length = 0 Then
                oElli.Center = Ee.Current.AsLineElement.startPoint
                Set oCirc = CreateEllipticalElement1(Nothing, oElli, msdFillModeNotFilled)
                ActiveModelReference.AddElement oCirc
                ActiveModelReference.RemoveElement Ee.Current
            End If
        Loop
        MessageCenter.AddMessage "There were " + str(Anzahl) + " lines replaced by circles.", , msdMessageCenterPriorityInfo
    End Sub

    After the points are changed, the number of points that were replaced will be output in a short message in the message center.

    See Also

    Deleting Lines of Length 0 Using VBA

    • VBAWindows 7 32 bit
    • MicroStation
    • Windows 7 64 bit
    • Programming
    • en
    • 08.11.09.578
    • SELECTsupport
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    • Tristan Anderson Created by Bentley Colleague Tristan Anderson
    • When: Wed, Jul 8 2015 10:39 AM
    • Tristan Anderson Last revision by Bentley Colleague Tristan Anderson
    • When: Wed, Jul 8 2015 10:56 AM
    • Revisions: 3
    • Comments: 0
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