Dario Sassi
2c6ebdadca
- correzioni, migliorie e d estensioni alle superfici di Bezier - in Release cambiate opzioni di ottimizzazione da /Ox a /O2.
53 lines
1.6 KiB
C
53 lines
1.6 KiB
C
//----------------------------------------------------------------------------
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// EgalTech 2020-2020
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//----------------------------------------------------------------------------
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// File : Bernstein.h Data : 22.03.20 Versione : 2.2c2
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// Contenuto : Implementazione delle funzioni sui polinomi di Bernstein.
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//
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//
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//
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// Modifiche : 22.03.20 DS Creazione modulo.
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//
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//
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//----------------------------------------------------------------------------
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#pragma once
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//--------------------------- Include ----------------------------------------
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#include "/EgtDev/Include/EgtNumCollection.h"
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//----------------------------------------------------------------------------
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inline bool
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GetAllBernstein( double dU, int nDeg, DBLVECTOR& vBern)
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{
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if ( nDeg >= int( vBern.size()))
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return false ;
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vBern[0] = 1 ;
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for ( int i = 1 ; i <= nDeg ; ++ i) {
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double dTot = 0 ;
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for ( int j = 0 ; j < i ; ++ j) {
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double dTmp = vBern[j] ;
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vBern[j] = dTot + ( 1 - dU) * dTmp ;
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dTot = dU * dTmp ;
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}
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vBern[i] = dTot ;
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}
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return true ;
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}
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//----------------------------------------------------------------------------
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inline bool
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IncreaseAllBernsteinOneDegree( double dU, int nDeg, DBLVECTOR& vBern)
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{
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if ( nDeg >= int( vBern.size()))
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return false ;
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double dTot = 0 ;
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for ( int j = 0 ; j < nDeg ; ++ j) {
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double dTmp = vBern[j] ;
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vBern[j] = dTot + ( 1 - dU) * dTmp ;
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dTot = dU * dTmp ;
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}
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vBern[nDeg] = ( nDeg > 0 ? dTot : 1) ;
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return true ;
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}
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