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83 lines
2.1 KiB
C++
Executable File
83 lines
2.1 KiB
C++
Executable File
// File: BSplSLib_BzSyntaxes.cxx
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// Created: Fri Oct 27 12:49:43 1995
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// Author: Laurent BOURESCHE
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// <lbo@phylox>
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// pmn 16-10-96 : Correction de PolesCoefficient (PRO5782)
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// ColLength et RowLength avaient encore frappes !!
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//
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#define No_Standard_RangeError
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#define No_Standard_OutOfRange
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#include <BSplSLib.hxx>
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#include <BSplCLib.hxx>
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#include <TColStd_Array1OfReal.hxx>
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//=======================================================================
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//function : PolesCoefficients
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//purpose :
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//=======================================================================
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void BSplSLib::PolesCoefficients (const TColgp_Array2OfPnt& Poles,
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const TColStd_Array2OfReal& Weights,
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TColgp_Array2OfPnt& CachePoles,
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TColStd_Array2OfReal& CacheWeights)
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{
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Standard_Integer i;
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Standard_Integer uclas = Poles.ColLength();
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Standard_Integer vclas = Poles.RowLength();
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TColStd_Array1OfReal biduflatknots(1,uclas << 1);
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TColStd_Array1OfReal bidvflatknots(1,vclas << 1);
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for(i = 1; i <= uclas; i++) {
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biduflatknots(i ) = 0.;
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biduflatknots(i + uclas) = 1.;
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}
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for(i = 1; i <= vclas; i++) {
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bidvflatknots(i ) = 0.;
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bidvflatknots(i + vclas) = 1.;
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}
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if ( uclas > vclas) {
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BSplSLib::BuildCache(0.,0.,
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1.,1.,0,0,
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uclas - 1,vclas - 1,0,0,
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biduflatknots,bidvflatknots,
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Poles,Weights,
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CachePoles,CacheWeights);
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}
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else {
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// BuilCache exige que les resultats soient formates en [MaxCoeff,MinCoeff]
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TColgp_Array2OfPnt CPoles (1,vclas, 1, uclas);
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TColStd_Array2OfReal CWeights(1,vclas, 1, uclas);
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Standard_Integer ii, jj;
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BSplSLib::BuildCache(0.,0.,
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1.,1.,0,0,
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uclas - 1,vclas - 1,0,0,
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biduflatknots,bidvflatknots,
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Poles,Weights,
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CPoles,CWeights);
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if (&Weights == NULL) {
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for (ii = 1; ii <= uclas; ii++) {
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for (jj = 1; jj <= vclas; jj++) {
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CachePoles(ii, jj) = CPoles(jj, ii);
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}
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}
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}
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else {
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for (ii = 1; ii <= uclas; ii++) {
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for (jj = 1; jj <= vclas; jj++) {
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CachePoles (ii, jj) = CPoles (jj, ii);
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CacheWeights(ii, jj) = CWeights(jj, ii);
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}
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}
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}
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}
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}
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