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Action:
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Creates a two-dimensional B-spline curve specified as a sequence of control points, weights, and an associated knot vector.
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Prototype:
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bs2_curve bs2_curve_from_ctrlpts (
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int degree,
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// degree
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logical rational,
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// rational
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logical closed,
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// closed
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logical periodic,
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// periodic
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int num_ctrlpts,
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// number of control
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// points
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const SPAposition* ctrlpts[],// control points, x
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// and y components
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// only are used
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const double weights[],
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// weights
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double,
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// control point
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// tolerance
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int num_knots,
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// number of knots
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const double knots[],
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// knots
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double knot_tol
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// knot tolerance
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);
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Includes:
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#include "kernel/acis.hxx"
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#include "baseutil/logical.h"
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#include "baseutil/vector/position.hxx"
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#include "kernel/spline/bs2_crv/bs2curve.hxx"
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#include "kernel/spline/sg_bs2c/sps2crtn.hxx"
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Description:
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The control point tolerance and knot tolerance are used to determine when points or knots are the same. Only the
x and
y-components of the input positions are considered.
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Library:
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kernel
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Filename:
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kern/kernel/spline/sg_bs2c/sps2crtn.hxx
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Effect:
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Changes model
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