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Action:
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Creates a single patch Bezier surface from Hermite data at the patch corners.
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Prototype:
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bs3_surface bs3_surface_hermite (
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const SPAposition* corners,
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// corners
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const SPAvector* uderivs,
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// u derivatives
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const SPAvector* vderivs,
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// v derivatives
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const SPAvector* twists
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// twists
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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/vector.hxx"
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#include "kernel/spline/bs3_srf/bs3surf.hxx"
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#include "kernel/spline/d3_bs3/spd3rtn.hxx"
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Description:
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The only point to bear in mind is that data is passed in ascending u order first, but ag_srf_data thinks it's in ascending v order first. Therefore care must be taken when copying control points into the big array.
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The arrays each have length 4, and contain data at (0,0), (1,0), (0,1) and (1,1) in that order. The derivatives are with respect to a unit parameterization.
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Library:
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kernel
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Filename:
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kern/kernel/spline/d3_bs3/sp3srtn.hxx
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Effect:
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Changes model
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