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Action:
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Creates a cubic curve which is supplied as B-spline vertexes and knot values.
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Prototype:
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bs3_curve bs3_curve_construct (
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int nkts,
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// number of knots
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const SPAposition* vertices,
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// vertices
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double* knots,
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// list of knots
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int mult
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// multiplicity
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);
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Includes:
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#include "kernel/acis.hxx"
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#include "baseutil/vector/position.hxx"
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#include "kernel/spline/bs3_crv/bs3curve.hxx"
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#include "kernel/spline/d3_bs3/spd3rtn.hxx"
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Description:
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The number of knots is given, and the multiplicities of internal knots (the end knots have multiplicity 3).
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vertices is an array containing the three or two space vertices. It should contain
mult*(nkts-2)+4 values.
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knots is an array of nkts distinct knot values.
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mult is the multiplicity of the internal knots. The end knots always get a multiplicity of three.
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The form of the curve must be set after construction. The form of the underlying spline curve is set during the construction.
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Library:
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kernel
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Filename:
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kern/kernel/spline/d3_bs3/spd3rtn.hxx
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Effect:
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Changes model
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