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Action:
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Gets the dimension, degree, rationality, control points, weights, and knots for a 3D B-spline curve.
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Prototype:
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void bs3_curve_to_array (
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bs3_curve bs,
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// given curve
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int& dim,
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// returned dimension
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int& deg,
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// returned degree
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logical& rat,
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// returned rational
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int& num_ctrlpts,
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// returned number of
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// control points
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SPAposition*& ctrlpts,
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// returned control
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// points
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double*& weights,
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// returned weights
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int& num_knots,
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// returned number of
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// knots
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double*& knots
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// knots
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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/bs3_crv/bs3curve.hxx"
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#include "kernel/spline/sg_bs3c/sps3crtn.hxx"
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Description:
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This function creates arrays of control points, weights, and knot points. It is up to the application to delete these arrays.
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If the curve is rational (i.e.,
rat =
TRUE), an array of weights is returned. Otherwise, the weight array is
NULL. Uses only the
x- and
y-components of the positions returned as the control points.
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Library:
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kernel
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Filename:
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kern/kernel/spline/sg_bs3c/sps3crtn.hxx
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Effect:
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Read-only
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