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b311480e | 1 | // Copyright (c) 1995-1999 Matra Datavision |
2 | // Copyright (c) 1999-2012 OPEN CASCADE SAS | |
3 | // | |
4 | // The content of this file is subject to the Open CASCADE Technology Public | |
5 | // License Version 6.5 (the "License"). You may not use the content of this file | |
6 | // except in compliance with the License. Please obtain a copy of the License | |
7 | // at http://www.opencascade.org and read it completely before using this file. | |
8 | // | |
9 | // The Initial Developer of the Original Code is Open CASCADE S.A.S., having its | |
10 | // main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France. | |
11 | // | |
12 | // The Original Code and all software distributed under the License is | |
13 | // distributed on an "AS IS" basis, without warranty of any kind, and the | |
14 | // Initial Developer hereby disclaims all such warranties, including without | |
15 | // limitation, any warranties of merchantability, fitness for a particular | |
16 | // purpose or non-infringement. Please see the License for the specific terms | |
17 | // and conditions governing the rights and limitations under the License. | |
18 | ||
7fd59977 | 19 | /*********************************************************************** |
20 | ||
21 | FONCTION : | |
22 | ---------- | |
23 | File OpenGl_telem_util : | |
24 | ||
25 | ||
26 | REMARQUES: | |
27 | ---------- | |
28 | ||
29 | ||
30 | HISTORIQUE DES MODIFICATIONS : | |
31 | -------------------------------- | |
32 | xx-xx-xx : xxx ; Creation. | |
33 | 07-02-96 : FMN ; - Ajout trace | |
34 | - Suppression code inutile | |
35 | 08-03-96 : FMN ; - Ajout include manquant | |
36 | 01-04-96 : CAL ; Integration MINSK portage WNT | |
37 | 15-04-96 : CAL ; Integration travail PIXMAP de Jim ROTH | |
38 | 22-04-96 : FMN ; Ajout TelReadImage TelDrawImage | |
39 | 10-05-96 : CAL ; Ajout d'un nouveau delta dans les copies | |
40 | de pixels (voir CALL_DEF_DELTA) | |
41 | 25-06-96 : FMN ; Suppression utilisation de glScissor. | |
42 | 02-07-96 : FMN ; Suppression WSWSHeight et WSWSWidth | |
43 | Suppression glViewport inutile. | |
44 | 18-07-96 : FMN ; Suppression TelFlush inutile. | |
45 | 08-07-96 : FMN ; Suppression de OPENGL_DEBUG inutile avec la nouvelle | |
46 | version de ogldebug. | |
47 | 24-10-96 : CAL ; Portage WNT | |
48 | 23-01-97 : CAL ; Suppression de TelClearViews dans TelCopyBuffers | |
49 | 30-01-97 : FMN ; Ajout commentaires + WNT. | |
50 | 12-02-97 : FMN ; Suppression TelEnquireFacilities() | |
51 | 22-04-97 : FMN ; Ajout affichage du cadre pour la copie de buffer | |
52 | 30-06-97 : FMN ; Suppression OpenGl_telem_light.h | |
53 | 18-07-97 : FMN ; Utilisation de la toolkit sur les lights | |
54 | 07-10-97 : FMN ; Simplification WNT + correction Transient | |
55 | 05-12-97 : FMN ; PRO11168: Suppression TglActiveWs pour project/unproject | |
56 | 23-12-97 : FMN ; Suppression TelSetFrontFaceAttri et TelSetBackFaceAttri | |
57 | 30-12-97 : FMN ; CTS18312: Correction back material | |
58 | 04-05-98 : CAL ; Contournement bug SGI octane bavure de pixels (PRO12899) | |
59 | 30-09-98 : CAL ; Optimisation pour eviter de charger inutilement | |
60 | les matrices de la vue. | |
61 | 19-10-98 : FMN ; Suppression de glPixelTransferi dans TelEnable() car cela | |
62 | rentre en conflit avec l'utilisation d'une image de fond. | |
63 | 02.14.100 : JR : Warnings on WNT truncations from double to float | |
64 | 08-03-01 : GG ; BUC60823 Avoid crash in the normal computation method | |
65 | when a face has confused or aligned points. | |
66 | ||
67 | ************************************************************************/ | |
68 | ||
d64e6d05 | 69 | #include <stdio.h> |
70 | ||
5f8b738e | 71 | #include <OpenGl_GlCore11.hxx> |
7fd59977 | 72 | |
7fd59977 | 73 | #include <OpenGl_telem_util.hxx> |
2166f0fa SK |
74 | #include <InterfaceGraphic_Graphic3d.hxx> |
75 | #include <InterfaceGraphic_Visual3d.hxx> | |
7fd59977 | 76 | |
7fd59977 | 77 | #define GPRECIS 0.000001 |
78 | Tint TelGetPolygonNormal(tel_point pnts, Tint* indexs, Tint npnt, Tfloat *norm ) { | |
79 | Tint status=0; | |
80 | ||
81 | norm[0] = norm[1] = norm[2] = 0.; | |
82 | if( npnt > 2 ) { | |
83 | Tfloat a[3], b[3], c[3]; | |
84 | Tint i,j,i0,ii=0,jj; | |
85 | ||
86 | i0 = 0; if( indexs ) i0 = indexs[0]; | |
87 | for( i=1 ; i<npnt ; i++ ) { | |
88 | ii = i; if( indexs ) ii = indexs[i]; | |
89 | vecsub( a, pnts[ii].xyz, pnts[i0].xyz ); | |
90 | if( vecmg2(a) > GPRECIS ) break; | |
91 | } | |
92 | if( i < npnt-1 ) { | |
93 | for( j=i+1 ; j<npnt ; j++ ) { | |
94 | jj = j; if( indexs ) jj = indexs[j]; | |
95 | vecsub( b, pnts[jj].xyz, pnts[i0].xyz ); | |
96 | vecsub( c, pnts[jj].xyz, pnts[ii].xyz ); | |
97 | if( (vecmg2(b) > GPRECIS) && (vecmg2(c) > GPRECIS) ) break; | |
98 | } | |
99 | if( j < npnt ) { | |
100 | Tfloat d; | |
101 | veccrs( norm, a, b ); | |
102 | d = vecnrmd( norm, d ); | |
103 | status = (d > 0.) ? 1 : 0; | |
104 | } | |
105 | } | |
106 | } | |
107 | #ifdef DEB | |
108 | if( !status ) | |
109 | printf(" *** OpenGl_TelGetPolygonNormal.has found confused or aligned points\n"); | |
110 | #endif | |
111 | ||
112 | return status; | |
113 | } | |
114 | ||
115 | Tint TelGetNormal(Tfloat *data1, Tfloat *data2, Tfloat *data3, Tfloat *norm ) { | |
116 | Tfloat a[3], b[3]; | |
117 | Tint status=0; | |
118 | ||
119 | norm[0] = norm[1] = norm[2] = 0.; | |
120 | vecsub( a, data2, data1 ); | |
121 | vecsub( b, data3, data2 ); | |
122 | if( (vecmg2(a) > GPRECIS) && (vecmg2(b) > GPRECIS) ) { | |
123 | Tfloat d; | |
124 | veccrs( norm, a, b ); | |
125 | d = vecnrmd( norm, d ); | |
126 | status = (d > 0.) ? 1 : 0; | |
127 | } | |
128 | #ifdef DEB | |
129 | if( !status ) | |
130 | printf(" *** OpenGl_TelGetNormal.has found confused or aligned points\n"); | |
131 | #endif | |
132 | ||
133 | return status; | |
134 | } | |
7fd59977 | 135 | |
2166f0fa | 136 | void TelMultiplymat3 (Tmatrix3 c, Tmatrix3 a, Tmatrix3 b) |
7fd59977 | 137 | { |
138 | Tint row, col, i; | |
139 | Tmatrix3 res; | |
140 | Tint dim = 4; | |
141 | ||
142 | /* on multiplie d'abord les 2 matrices dim x dim */ | |
143 | for (row = 0; row < dim; row++) { | |
144 | for (col = 0; col < dim; col++) { | |
145 | Tfloat sum = ( float )0.0; | |
146 | for (i = 0; i < dim; i++) | |
147 | sum += a[row][i] * b[i][col]; | |
148 | res[row][col] = sum; | |
149 | } | |
150 | } | |
151 | ||
152 | /* on copie ensuite le resultat */ | |
153 | matcpy (c, res); | |
154 | ||
155 | return; | |
156 | } |