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Action:
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Creates a curve that interpolates or fits to the given tolerance the given points, with the given tangent directions at the two end points.
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Prototype:
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bs3_curve bs3_curve_interp (
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int npts,
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// number of points to
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// interpolate
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SPAposition const* pts,
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// points to interpolate
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// or fit
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SPAunit_vector const&
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// start direction
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start_dir,
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// vector
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SPAunit_vector const&
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// end direction
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end_dir,
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// vector
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double fitol,
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// fit tolerance
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double& actual_tol
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// returned actual
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=*(double*)NULL_REF,
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// tolerance used
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logical periodic
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// make periodic if no
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= FALSE
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// end conditions and
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// matching end points
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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 "baseutil/vector/unitvec.hxx"
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#include "kernel/spline/bs3_crv/bs3curve.hxx"
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#include "kernel/spline/bs3_crv/sp3crtn.hxx"
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#include "baseutil/logical.h"
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Description:
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If an end direction is a
NULL reference or has zero length, then a
natural boundary condition is used, i.e., the second derivative at that end is set to zero.
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If any of the start or end conditions are set and are non-zero, or the last point to interpolate is more than
SPAresabs from the first point, the periodic flag is ignored.
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Library:
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kernel
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Filename:
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kern/kernel/spline/bs3_crv/sp3crtn.hxx
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Effect:
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Changes model
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