NurbsSurface.GetTrim
Returns a complete data description of a nurbs surface trim. A
trim is a nurbs curve list that is projected on a nurbs
surface.
Note: This method uses output
arguments. C# and some scripting languages (such as JScript and
PerlScript) don't support arguments passed by reference. However,
there is a alternate version of this method which is considered
safe to use with C#, JScript and PerlScript: NurbsSurface.GetTrim2.
NurbsSurface.GetTrim( Int32 in_nTrimIndex, siNurbsFormat in_eNurbsFormat, Object& out_vsabIsBoundary, Object& out_vsalProjectionType, Object& out_vsalCount, Object& out_vsaControlPoints, Object& out_vsaNbControlPoints, Object& out_vsadKnots, Object& out_vsaNbKnots, Object& out_vsasClosed, Object& out_vsalDegree, Object& out_vsalParameterization ); |
NurbsSurface.GetTrim( TrimIndex, [NurbsFormat], IsBoundary, ProjectionType, Count, ControlPoints, [NbControlPoints], [Knots], [NbKnots], [Closed], [Degree], [Parameterization] ); |
| Parameter | Type | Description | ||||||
|---|---|---|---|---|---|---|---|---|
| TrimIndex | Long | Specifies which trim must be described. | ||||||
| NurbsFormat | siNurbsFormat | Specifies how the data is formatted.
Default Value: siSINurbs |
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| IsBoundary | Boolean | Specifies whether the trim is a boundary. | ||||||
| ProjectionType | Long | Specifies the projection type of this trim.
|
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| Count | Long | Number of nurbs curve in the trim | ||||||
| ControlPoints | 2D Array | The control points are stored in a 2 dimensional array. The array is a 4 x Number of ControlPoints |
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| NbControlPoints | Array of Long | Specifies the number of ControlPoints per NurbsCurve. | ||||||
| Knots | Array of Doubles | An array of knot values. | ||||||
| NbKnots | Array of Longs | Specifies the number of Knots per nurbs curve. | ||||||
| Closed | Array of Boolean | Specifies whether the nurbs curve is closed .
Default Value: False |
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| Degree | Array of Long | Degree of the nurbs curves.
Default Value: 3 |
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| Parameterization | Array of siKnotParameterization | The parameterization factor of the nurbs curve. |
Dim lDegree, bClosed, eParameterization, aControlVertex, aKnots, lCount, aNbControlVertex, bIsBoundary, lProjType
set oRoot = application.activeproject.activescene.root
set oSphere = oRoot.AddGeometry( "Sphere", "NurbsSurface" )
' extract each trim contained in the surface
for i = 0 to (oSphere.ActivePrimitive.Geometry.Surfaces.Item(0).TrimCount - 1)
oSphere.ActivePrimitive.Geometry.Surfaces.Item(0).GetTrim _
i, _
siSINurbs, _
bIsBoundary, _
lProjType, _
lCount, _
aControlVertex, _
aNbControlVertex, _
aKnots , _
aNbKnots, _
bClosed, _
lDegree, _
eParameterization
oRoot.AddNurbsCurveList2 _
lCount, _
aControlVertex, _
aNbControlVertex, _
aKnots, _
aNbKnots, _
bClosed, _
lDegree, _
eParameterization, _
siSINurbs
next
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