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IGetTessTriStrips Method (IComponent2)

Gets the vertices that make up the shaded picture tessellation for this component.

.NET Syntax

Visual Basic (Declaration) 
Function IGetTessTriStrips( _
   ByVal NoConversion As Boolean _
) As Single
Visual Basic (Usage) 
Dim instance As IComponent2
Dim NoConversion As Boolean
Dim value As Single
 
value = instance.IGetTessTriStrips(NoConversion)
C# 
float IGetTessTriStrips( 
   bool NoConversion
)
C++/CLI 
float IGetTessTriStrips( 
&   bool NoConversion
) 

Parameters

NoConversion
True prohibits conversion to user units from system units, false does not

Return Value

  • in-process, unmanaged C++: Pointer to an array of floats (see Remarks)
  • VBA, VB.NET, C#, and C++/CLI: Not supported
  • See In-process Methods for details about this type of method.

    Remarks

    Tessellation information is available only when the component is loaded as lightweight.

    These triangles are intended for graphical display purposes and do not represent a tessellation that could be used, for example, by a machining application. If you need the type of accuracy associated with a machining product, you should traverse the body faces and extract the topology and geometry data to create your own faceting.

    where:

    •  FaceCount  = number of faces on the body
    •  StripCount  = total number of strips on the body
    •  VertexCount x 3 = total number of vertices. Multiplied by three to cover X,Y, and Z
    •  NumStrips = number of strips on a particular face
    •  VertexPerStrip = an array containing the number of vertex points on particular face strip
    •  VertexPoints = an array of X,Y,Z points for each vertex on the particular face strip

    Because the returned array elements are of type float, and FaceCount, StripCount, VertexCount, NumStrips, and the elements of VertexPerStrip are integers that have been packed into the return array elements, and you must unpack them before you can use them.

    For example:

    • sa[0] = number of faces
    • sa[1] = total number of strips
    • sa[2] = total number of vertices x 3 (i.e., - data values)

     

    For each face:

    • sa[3] = number of strips in this face
    • sa[4] = number of vertices in first strip of this face
    • sa[5] = number of vertices in second strip of this face

    ...

    • sa[3 + sa[3]] = number of vertices in last strip of this face

     

    For each strip, i:

    • sa[3 + sa[3] + 1] = X value of first vertex in this strip of the face
    • sa[3 + sa[3] + 2] = Y value of first vertex in this strip of the face
    • sa[3 + sa[3] + 3] = Z value of first vertex in this strip of the face
    • sa[3 + sa[3] + 4] = X value of second vertex in this strip of the face

    ...

    • sa[3 + sa[3] + (sa[3+i] x 3)] = Z value of last vertex in this strip of the face
     

    See Also

    Availability

    SolidWorks 2001Plus FCS, Revision number 10.0


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