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Action:
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Modifies the curve, such that the curve passes through the given point at the given parameter value and has the given tangent direction.
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Prototype:
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logical bs3_curve_modify (
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bs3_curve bs_cur,
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// given curve
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SPAposition const& pos,
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// position to be
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// interpolated
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SPAunit_vector const& dir,// direction to be
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// interpolated
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double t
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// parameter value to be
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// interpolated
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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 "baseutil/vector/unitvec.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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The given curve is modified in place. Returns
TRUE if the operation is successful.
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It may assume that the ends to be joined match in position and direction, and that the parameterization is continuous.
ACIS uses this routine only to rejoin parts of a periodic curve that have been split by
bs3_curve_split, in the opposite order, so that the resultant curve starts and ends at the split point. A curve made in this way may be marked as closed by
bs3_curve_join, but should not be marked periodic.
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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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Changes model
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