Returns the previous grip index from a specified grip index of an object.
Rhino.PrevObjectGrip (strObject, intIndex [, intDirection [, blnSelect]])
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strObject |
Required. String. The identifier of the object. |
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intIndex |
Required. Number. The zero-based grip index from which to get the previous grip index. |
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intDirection |
Optional. Number. The direction to get the previous grip index, either 0=U or 1=V. The default value is 0. Note, this argument only applies when dealing with surfaces. |
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blnEnable |
Optional. Boolean. If True (default), the previous grip index found will be selected. Otherwise, it will not be selected. |
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Number |
The index of the next grip from the specified grip index. |
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Null |
If not successful, or on error. |
Dim strObject, intCount, i
strObject = Rhino.GetObject("Select curve", 4)
If Not IsNull(strObject) Then
Rhino.EnableObjectGrips strObject
intCount = Rhino.ObjectGripCount(strObject)
For i = intCount -1 to 0 Step -2
Rhino.NextObjectGrip strObject,i,,True
Next
End If