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GetControlPoints Method (IBSurfParamData)

Gets the coordinates of a control point at a specific row and column of the control point matrix.

.NET Syntax

Visual Basic (Declaration) 
Function GetControlPoints( _
   ByVal Row As System.Integer, _
   ByVal Column As System.Integer _
) As System.Object
Visual Basic (Usage) 
Dim instance As IBSurfParamData
Dim Row As System.Integer
Dim Column As System.Integer
Dim value As System.Object
 
value = instance.GetControlPoints(Row, Column)
C# 
System.object GetControlPoints( 
   System.int Row,
   System.int Column
)
C++/CLI 
System.Object^ GetControlPoints( 
&   System.int Row,
&   System.int Column
)

Parameters

Row
1 <= index of row <= ControlPointRowCount
Column
1 <= index of column <= ControlPointColumnCount

Return Value

Array of control point coordinates

Example

Remarks

Control points are stored in (ControlPointColumnCount*ControlPointRowCount) vectors of dimension ControlPointDimension. The U direction of surface is in the row direction. The V direction of surface is in the column direction.

  • For non-rational surfaces ControlPointDimension = 3, and control point coordinates are stored as [x0,y0,z0,x1,y1,z1,.........].

  • For rational surfaces ControlPointDimension = 4, and control point coordinates and weights are stored as [x0,y0,z0,w0,x1,y1,z1,w1,........].

  • For example, 6 control points are stored in 6 vectors of dimension 3 in a 2X3 matrix as follows:

Row1, Column1 Row1, Column2 # Coordinates
x0, y0, z0 x1, y1, z1 = 6
     
Row2, Column1 Row2, Column2
x2, y2, z2 x3, y3, z3 = 6
     
Row3, Column1 Row3, Column2
x4, y4, z4 x5, y5, z5 = 6
     
Total = 18

 

See Also

Availability

SOLIDWORKS 2011 FCS, Revision Number 19.0


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