v5.0
Aligns the forward and backward tangents of the specified bezier knots
according to the mode indicated.
A bezier knot is a knot whose multiplicity equals the curve degree
(for example: multiplicity=3 in a cubic curve).
Note: If the given knots are not bezier the command will prompt the user
for a confirmation to convert them to bezier.
oReturn = AlignBezierKnotsTangents( [SubComp], [ImmediateMode], [Mode] ); |
An XSICollection of Operators.
Note: If the ImmediateMode parameter is set to siImmediateOperation, no operators are returned.
| Parameter | Type | Description |
|---|---|---|
| SubComp | String |
Either knots or a cluster of knots as Components. Default Value: Current selection |
| ImmediateMode | siOperationMode |
Specifies whether or not the operator should be immediately frozen. Default Value: siPersistentOperation |
| Mode | siCurveKnotTangentAlignment |
Specifies how to align the tangents Default Value: siCurveKnotAlignFwdAndBwdTangentsTogether |
' ' This example creates a cubic curve of 4 knots, selects the middle two knots, ' and creates a line segment between those knots (the knots are automatically ' converted to bezier knots to accomodate the alignment). ' NewScene , false SICreateCurve "crvlist", 3, 0 SIAddPointOnCurveAtEnd "crvlist", -4, 2, 0, False, 0 SIAddPointOnCurveAtEnd "crvlist", -4, -3, 0, False, 0 SIAddPointOnCurveAtEnd "crvlist", -1, -3, 0, False, 0 SIAddPointOnCurveAtEnd "crvlist", -1, 2, 0, False, 0 SIAddPointOnCurveAtEnd "crvlist", 2, 2, 0, False, 0 SIAddPointOnCurveAtEnd "crvlist", 3, -2, 0, False, 0 SetSelFilter "Knot" SelectGeometryComponents "crvlist.knot[1,2]" AlignBezierKnotsTangents "crvlist.knot[1,2]", siPersistentOperation, siCurveKnotLinearizeInterSegments 'INFO : Warning: the following knots got converted to Bezier: crvlist.knot[1,2] |
/*
This example creates a cubic curve of 4 knots, selects the middle two knots,
and creates a line segment between those knots (the knots are automatically converted to
bezier knots to accomodate the alignment).
*/
NewScene(null, false);
SICreateCurve("crvlist", 3, 0);
SIAddPointOnCurveAtEnd("crvlist", -4, 2, 0, false, 0);
SIAddPointOnCurveAtEnd("crvlist", -4, -3, 0, false, 0);
SIAddPointOnCurveAtEnd("crvlist", -1, -3, 0, false, 0);
SIAddPointOnCurveAtEnd("crvlist", -1, 2, 0, false, 0);
SIAddPointOnCurveAtEnd("crvlist", 2, 2, 0, false, 0);
SIAddPointOnCurveAtEnd("crvlist", 3, -2, 0, false, 0);
SetSelFilter("Knot");
SelectGeometryComponents("crvlist.knot[1,2]");
AlignBezierKnotsTangents("crvlist.knot[1,2]", siPersistentOperation, siCurveKnotLinearizeInterSegments);
//INFO : Warning: the following knots got converted to Bezier: crvlist.knot[1,2] |