mirror of
https://git.dev.opencascade.org/repos/occt.git
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157 lines
5.1 KiB
C++
Executable File
157 lines
5.1 KiB
C++
Executable File
// Copyright (c) 1995-1999 Matra Datavision
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// Copyright (c) 1999-2012 OPEN CASCADE SAS
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//
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// The content of this file is subject to the Open CASCADE Technology Public
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// License Version 6.5 (the "License"). You may not use the content of this file
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// except in compliance with the License. Please obtain a copy of the License
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// at http://www.opencascade.org and read it completely before using this file.
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//
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// The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
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// main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
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//
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// The Original Code and all software distributed under the License is
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// distributed on an "AS IS" basis, without warranty of any kind, and the
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// Initial Developer hereby disclaims all such warranties, including without
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// limitation, any warranties of merchantability, fitness for a particular
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// purpose or non-infringement. Please see the License for the specific terms
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// and conditions governing the rights and limitations under the License.
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/***********************************************************************
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FONCTION :
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----------
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File OpenGl_telem_util :
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REMARQUES:
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----------
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HISTORIQUE DES MODIFICATIONS :
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--------------------------------
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xx-xx-xx : xxx ; Creation.
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07-02-96 : FMN ; - Ajout trace
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- Suppression code inutile
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08-03-96 : FMN ; - Ajout include manquant
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01-04-96 : CAL ; Integration MINSK portage WNT
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15-04-96 : CAL ; Integration travail PIXMAP de Jim ROTH
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22-04-96 : FMN ; Ajout TelReadImage TelDrawImage
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10-05-96 : CAL ; Ajout d'un nouveau delta dans les copies
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de pixels (voir CALL_DEF_DELTA)
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25-06-96 : FMN ; Suppression utilisation de glScissor.
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02-07-96 : FMN ; Suppression WSWSHeight et WSWSWidth
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Suppression glViewport inutile.
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18-07-96 : FMN ; Suppression TelFlush inutile.
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08-07-96 : FMN ; Suppression de OPENGL_DEBUG inutile avec la nouvelle
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version de ogldebug.
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24-10-96 : CAL ; Portage WNT
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23-01-97 : CAL ; Suppression de TelClearViews dans TelCopyBuffers
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30-01-97 : FMN ; Ajout commentaires + WNT.
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12-02-97 : FMN ; Suppression TelEnquireFacilities()
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22-04-97 : FMN ; Ajout affichage du cadre pour la copie de buffer
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30-06-97 : FMN ; Suppression OpenGl_telem_light.h
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18-07-97 : FMN ; Utilisation de la toolkit sur les lights
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07-10-97 : FMN ; Simplification WNT + correction Transient
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05-12-97 : FMN ; PRO11168: Suppression TglActiveWs pour project/unproject
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23-12-97 : FMN ; Suppression TelSetFrontFaceAttri et TelSetBackFaceAttri
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30-12-97 : FMN ; CTS18312: Correction back material
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04-05-98 : CAL ; Contournement bug SGI octane bavure de pixels (PRO12899)
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30-09-98 : CAL ; Optimisation pour eviter de charger inutilement
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les matrices de la vue.
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19-10-98 : FMN ; Suppression de glPixelTransferi dans TelEnable() car cela
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rentre en conflit avec l'utilisation d'une image de fond.
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02.14.100 : JR : Warnings on WNT truncations from double to float
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08-03-01 : GG ; BUC60823 Avoid crash in the normal computation method
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when a face has confused or aligned points.
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************************************************************************/
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#include <stdio.h>
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#include <OpenGl_GlCore11.hxx>
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#include <OpenGl_telem_util.hxx>
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#include <InterfaceGraphic_Graphic3d.hxx>
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#include <InterfaceGraphic_Visual3d.hxx>
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#define GPRECIS 0.000001
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Tint TelGetPolygonNormal(tel_point pnts, Tint* indexs, Tint npnt, Tfloat *norm ) {
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Tint status=0;
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norm[0] = norm[1] = norm[2] = 0.;
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if( npnt > 2 ) {
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Tfloat a[3], b[3], c[3];
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Tint i,j,i0,ii=0,jj;
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i0 = 0; if( indexs ) i0 = indexs[0];
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for( i=1 ; i<npnt ; i++ ) {
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ii = i; if( indexs ) ii = indexs[i];
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vecsub( a, pnts[ii].xyz, pnts[i0].xyz );
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if( vecmg2(a) > GPRECIS ) break;
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}
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if( i < npnt-1 ) {
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for( j=i+1 ; j<npnt ; j++ ) {
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jj = j; if( indexs ) jj = indexs[j];
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vecsub( b, pnts[jj].xyz, pnts[i0].xyz );
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vecsub( c, pnts[jj].xyz, pnts[ii].xyz );
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if( (vecmg2(b) > GPRECIS) && (vecmg2(c) > GPRECIS) ) break;
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}
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if( j < npnt ) {
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Tfloat d;
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veccrs( norm, a, b );
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d = vecnrmd( norm, d );
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status = (d > 0.) ? 1 : 0;
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}
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}
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}
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#ifdef DEB
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if( !status )
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printf(" *** OpenGl_TelGetPolygonNormal.has found confused or aligned points\n");
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#endif
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return status;
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}
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Tint TelGetNormal(Tfloat *data1, Tfloat *data2, Tfloat *data3, Tfloat *norm ) {
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Tfloat a[3], b[3];
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Tint status=0;
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norm[0] = norm[1] = norm[2] = 0.;
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vecsub( a, data2, data1 );
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vecsub( b, data3, data2 );
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if( (vecmg2(a) > GPRECIS) && (vecmg2(b) > GPRECIS) ) {
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Tfloat d;
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veccrs( norm, a, b );
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d = vecnrmd( norm, d );
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status = (d > 0.) ? 1 : 0;
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}
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#ifdef DEB
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if( !status )
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printf(" *** OpenGl_TelGetNormal.has found confused or aligned points\n");
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#endif
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return status;
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}
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void TelMultiplymat3 (Tmatrix3 c, Tmatrix3 a, Tmatrix3 b)
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{
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Tint row, col, i;
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Tmatrix3 res;
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Tint dim = 4;
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/* on multiplie d'abord les 2 matrices dim x dim */
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for (row = 0; row < dim; row++) {
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for (col = 0; col < dim; col++) {
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Tfloat sum = ( float )0.0;
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for (i = 0; i < dim; i++)
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sum += a[row][i] * b[i][col];
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res[row][col] = sum;
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}
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}
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/* on copie ensuite le resultat */
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matcpy (c, res);
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return;
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}
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