| Geant4 Cross Reference |
1 // 1 //
2 // ******************************************* 2 // ********************************************************************
3 // * License and Disclaimer 3 // * License and Disclaimer *
4 // * 4 // * *
5 // * The Geant4 software is copyright of th 5 // * The Geant4 software is copyright of the Copyright Holders of *
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8 // * LICENSE and available at http://cern.ch/ 8 // * LICENSE and available at http://cern.ch/geant4/license . These *
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10 // * 10 // * *
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13 // * work make any representation or warran 13 // * work make any representation or warranty, express or implied, *
14 // * regarding this software system or assum 14 // * regarding this software system or assume any liability for its *
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17 // * 17 // * *
18 // * This code implementation is the result 18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboratio 19 // * technical work of the GEANT4 collaboration. *
20 // * By using, copying, modifying or distri 20 // * By using, copying, modifying or distributing the software (or *
21 // * any work based on the software) you ag 21 // * any work based on the software) you agree to acknowledge its *
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24 // ******************************************* 24 // ********************************************************************
25 // 25 //
26 // 26 //
27 // 27 //
28 // 28 //
29 /*-----------------------------HEPVis--------- 29 /*-----------------------------HEPVis---------------------------------------*/
30 /* 30 /* */
31 /* Node: SoTrd 31 /* Node: SoTrd */
32 /* Description: Represents the G4Trd Gean 32 /* Description: Represents the G4Trd Geant Geometry entity */
33 /* Author: Joe Boudreau Nov 11 1996 33 /* Author: Joe Boudreau Nov 11 1996 */
34 /* 34 /* */
35 /*-------------------------------------------- 35 /*--------------------------------------------------------------------------*/
36 36
>> 37 #ifdef G4VIS_BUILD_OI_DRIVER
>> 38
37 #include <assert.h> 39 #include <assert.h>
38 #include <cmath> 40 #include <cmath>
39 41
40 #include <Inventor/SbBox.h> 42 #include <Inventor/SbBox.h>
41 #include <Inventor/actions/SoAction.h> 43 #include <Inventor/actions/SoAction.h>
42 #include <Inventor/fields/SoSFFloat.h> 44 #include <Inventor/fields/SoSFFloat.h>
43 #include <Inventor/misc/SoChildList.h> 45 #include <Inventor/misc/SoChildList.h>
44 #include <Inventor/nodes/SoSeparator.h> 46 #include <Inventor/nodes/SoSeparator.h>
45 #include <Inventor/nodes/SoIndexedFaceSet.h> 47 #include <Inventor/nodes/SoIndexedFaceSet.h>
46 #include <Inventor/nodes/SoNormal.h> 48 #include <Inventor/nodes/SoNormal.h>
47 #include <Inventor/nodes/SoCoordinate3.h> 49 #include <Inventor/nodes/SoCoordinate3.h>
48 #include <Inventor/nodes/SoNormalBinding.h> 50 #include <Inventor/nodes/SoNormalBinding.h>
49 #include <Inventor/SoPrimitiveVertex.h> 51 #include <Inventor/SoPrimitiveVertex.h>
50 #include <Inventor/elements/SoTextureCoordinat 52 #include <Inventor/elements/SoTextureCoordinateElement.h>
51 53
52 #include "HEPVis/SbMath.h" 54 #include "HEPVis/SbMath.h"
53 #include "HEPVis/nodes/SoTrd.h" 55 #include "HEPVis/nodes/SoTrd.h"
54 56
55 // This statement is required 57 // This statement is required
56 SO_NODE_SOURCE(SoTrd) 58 SO_NODE_SOURCE(SoTrd)
57 59
58 // initClass 60 // initClass
59 void SoTrd::initClass(){ 61 void SoTrd::initClass(){
60 static bool first = true; 62 static bool first = true;
61 if (first) { 63 if (first) {
62 first = false; 64 first = false;
63 SO_NODE_INIT_CLASS(SoTrd,SoShape,"Shape"); 65 SO_NODE_INIT_CLASS(SoTrd,SoShape,"Shape");
64 } 66 }
65 } 67 }
66 // Constructor 68 // Constructor
67 SoTrd::SoTrd() { 69 SoTrd::SoTrd() {
68 // This statement is required 70 // This statement is required
69 SO_NODE_CONSTRUCTOR(SoTrd); 71 SO_NODE_CONSTRUCTOR(SoTrd);
70 // Data fields are initialized like this: 72 // Data fields are initialized like this:
71 SO_NODE_ADD_FIELD(fDx1,(1.0)); 73 SO_NODE_ADD_FIELD(fDx1,(1.0));
72 SO_NODE_ADD_FIELD(fDx2,(1.0)); 74 SO_NODE_ADD_FIELD(fDx2,(1.0));
73 SO_NODE_ADD_FIELD(fDy1,(1.0)); 75 SO_NODE_ADD_FIELD(fDy1,(1.0));
74 SO_NODE_ADD_FIELD(fDy2,(1.0)); 76 SO_NODE_ADD_FIELD(fDy2,(1.0));
75 SO_NODE_ADD_FIELD(fDz,(1.0)); 77 SO_NODE_ADD_FIELD(fDz,(1.0));
76 SO_NODE_ADD_FIELD(alternateRep,(NULL)); 78 SO_NODE_ADD_FIELD(alternateRep,(NULL));
77 children = new SoChildList(this); 79 children = new SoChildList(this);
78 } 80 }
79 // Destructor 81 // Destructor
80 SoTrd::~SoTrd() { 82 SoTrd::~SoTrd() {
81 delete children; 83 delete children;
82 } 84 }
83 // generatePrimitives 85 // generatePrimitives
84 void SoTrd::generatePrimitives(SoAction *actio 86 void SoTrd::generatePrimitives(SoAction *action) {
85 // This variable is used to store each verte 87 // This variable is used to store each vertex
86 SoPrimitiveVertex pv; 88 SoPrimitiveVertex pv;
87 89
88 // Access the stat from the action 90 // Access the stat from the action
89 SoState *state = action->getState(); 91 SoState *state = action->getState();
90 92
91 // See if we have to use a texture coordinat 93 // See if we have to use a texture coordinate function,
92 // rather than generating explicit texture c 94 // rather than generating explicit texture coordinates.
93 SbBool useTexFunction= 95 SbBool useTexFunction=
94 (SoTextureCoordinateElement::getType(state 96 (SoTextureCoordinateElement::getType(state) ==
95 SoTextureCoordinateElement::FUNCTION); 97 SoTextureCoordinateElement::FUNCTION);
96 98
97 // If we need to generate texture coordinate 99 // If we need to generate texture coordinates with a function,
98 // we'll need an SoGLTextureCoordinateElemen 100 // we'll need an SoGLTextureCoordinateElement. Otherwise, we'll
99 // set up the coordinates directly. 101 // set up the coordinates directly.
100 const SoTextureCoordinateElement *tce = NULL 102 const SoTextureCoordinateElement *tce = NULL;
101 SbVec4f texCoord; 103 SbVec4f texCoord;
102 if (useTexFunction) { 104 if (useTexFunction) {
103 tce = SoTextureCoordinateElement::getInsta 105 tce = SoTextureCoordinateElement::getInstance(state);
104 } 106 }
105 else { 107 else {
106 texCoord[2] = 0.0; 108 texCoord[2] = 0.0;
107 texCoord[3] = 1.0; 109 texCoord[3] = 1.0;
108 } 110 }
109 SbVec3f point, normal; 111 SbVec3f point, normal;
110 112
111 113
112 ////////////////////////////////////////// 114 //////////////////////////////////////////
113 //---------------------------------------- 115 //----------------------------------------
114 #define GEN_VERTEX(pv,x,y,z,s,t,nx,ny,nz) \ 116 #define GEN_VERTEX(pv,x,y,z,s,t,nx,ny,nz) \
115 point.setValue(x,y,z); \ 117 point.setValue(x,y,z); \
116 normal.setValue(nx,ny,nz); \ 118 normal.setValue(nx,ny,nz); \
117 if (useTexFunction) { \ 119 if (useTexFunction) { \
118 texCoord=tce->get(point,normal); \ 120 texCoord=tce->get(point,normal); \
119 } \ 121 } \
120 else { \ 122 else { \
121 texCoord[0]=s; \ 123 texCoord[0]=s; \
122 texCoord[1]=t; \ 124 texCoord[1]=t; \
123 } \ 125 } \
124 pv.setPoint(point); \ 126 pv.setPoint(point); \
125 pv.setNormal(normal); \ 127 pv.setNormal(normal); \
126 pv.setTextureCoords(texCoord); \ 128 pv.setTextureCoords(texCoord); \
127 shapeVertex(&pv); 129 shapeVertex(&pv);
128 //---------------------------------------- 130 //----------------------------------------
129 ////////////////////////////////////////// 131 //////////////////////////////////////////
130 132
131 const int NPOINTS=8, NFACES=6, NINDICES = NF 133 const int NPOINTS=8, NFACES=6, NINDICES = NFACES*5;
132 int indices[NINDICES] = {3,2,1,0, SO_END_FAC 134 int indices[NINDICES] = {3,2,1,0, SO_END_FACE_INDEX, //z back.
133 4,5,6,7, SO_END_FACE_INDEX, //z fron 135 4,5,6,7, SO_END_FACE_INDEX, //z front.
134 0,1,5,4, SO_END_FACE_INDEX, //y up. 136 0,1,5,4, SO_END_FACE_INDEX, //y up.
135 1,2,6,5, SO_END_FACE_INDEX, //x left 137 1,2,6,5, SO_END_FACE_INDEX, //x left.
136 2,3,7,6, SO_END_FACE_INDEX, //y down 138 2,3,7,6, SO_END_FACE_INDEX, //y down.
137 3,0,4,7, SO_END_FACE_INDEX}; //x righ 139 3,0,4,7, SO_END_FACE_INDEX}; //x right.
138 140
139 141
140 // points for the eight vertices 142 // points for the eight vertices
141 float points[NPOINTS][3]; 143 float points[NPOINTS][3];
142 points[0][0] = fDx1.getValue(); 144 points[0][0] = fDx1.getValue();
143 points[0][1] = fDy1.getValue(); 145 points[0][1] = fDy1.getValue();
144 points[0][2] = -fDz.getValue(); 146 points[0][2] = -fDz.getValue();
145 147
146 points[1][0] = -fDx1.getValue(); 148 points[1][0] = -fDx1.getValue();
147 points[1][1] = fDy1.getValue(); 149 points[1][1] = fDy1.getValue();
148 points[1][2] = -fDz.getValue(); 150 points[1][2] = -fDz.getValue();
149 151
150 points[2][0] = -fDx1.getValue(); 152 points[2][0] = -fDx1.getValue();
151 points[2][1] = -fDy1.getValue(); 153 points[2][1] = -fDy1.getValue();
152 points[2][2] = -fDz.getValue(); 154 points[2][2] = -fDz.getValue();
153 155
154 points[3][0] = fDx1.getValue(); 156 points[3][0] = fDx1.getValue();
155 points[3][1] = -fDy1.getValue(); 157 points[3][1] = -fDy1.getValue();
156 points[3][2] = -fDz.getValue(); 158 points[3][2] = -fDz.getValue();
157 159
158 points[4][0] = fDx2.getValue(); 160 points[4][0] = fDx2.getValue();
159 points[4][1] = fDy2.getValue(); 161 points[4][1] = fDy2.getValue();
160 points[4][2] = fDz.getValue(); 162 points[4][2] = fDz.getValue();
161 163
162 points[5][0] = -fDx2.getValue(); 164 points[5][0] = -fDx2.getValue();
163 points[5][1] = fDy2.getValue(); 165 points[5][1] = fDy2.getValue();
164 points[5][2] = fDz.getValue(); 166 points[5][2] = fDz.getValue();
165 167
166 points[6][0] = -fDx2.getValue(); 168 points[6][0] = -fDx2.getValue();
167 points[6][1] = -fDy2.getValue(); 169 points[6][1] = -fDy2.getValue();
168 points[6][2] = fDz.getValue(); 170 points[6][2] = fDz.getValue();
169 171
170 points[7][0] = fDx2.getValue(); 172 points[7][0] = fDx2.getValue();
171 points[7][1] = -fDy2.getValue(); 173 points[7][1] = -fDy2.getValue();
172 points[7][2] = fDz.getValue(); 174 points[7][2] = fDz.getValue();
173 175
174 float t1 = FATAN((fDx2.getValue()-fDx1.getV 176 float t1 = FATAN((fDx2.getValue()-fDx1.getValue())/(2*fDz.getValue()));
175 float t2 = FATAN((fDy2.getValue()-fDy1.getV 177 float t2 = FATAN((fDy2.getValue()-fDy1.getValue())/(2*fDz.getValue()));
176 float st1 = FSIN(t1); 178 float st1 = FSIN(t1);
177 float st2 = FSIN(t2); 179 float st2 = FSIN(t2);
178 float ct1 = FCOS(t1); 180 float ct1 = FCOS(t1);
179 float ct2 = FCOS(t2); 181 float ct2 = FCOS(t2);
180 182
181 float normals[NFACES][3]; 183 float normals[NFACES][3];
182 //z back. 184 //z back.
183 normals[0][0] = 0 ; normals[0][1] = 0; 185 normals[0][0] = 0 ; normals[0][1] = 0; normals [0][2] = -1;
184 //z front. 186 //z front.
185 normals[1][0] = 0 ; normals[1][1] = 0; 187 normals[1][0] = 0 ; normals[1][1] = 0; normals [1][2] = 1;
186 //y up. 188 //y up.
187 normals[2][0] = 0 ; normals[2][1] = ct2; 189 normals[2][0] = 0 ; normals[2][1] = ct2; normals [2][2] = -st2;
188 //x left. 190 //x left.
189 normals[3][0] = -ct1; normals[3][1] = 0; 191 normals[3][0] = -ct1; normals[3][1] = 0; normals [3][2] = -st1;
190 //y down. 192 //y down.
191 normals[4][0] = 0 ; normals[4][1] = -ct2; 193 normals[4][0] = 0 ; normals[4][1] = -ct2; normals [4][2] = -st2;
192 //x right. 194 //x right.
193 normals[5][0] = ct1; normals[5][1] = 0; 195 normals[5][0] = ct1; normals[5][1] = 0; normals [5][2] = -st1;
194 196
195 float x,y,z; 197 float x,y,z;
196 int index; 198 int index;
197 for (int nf=0;nf<NFACES;nf++) { 199 for (int nf=0;nf<NFACES;nf++) {
198 beginShape(action,TRIANGLE_FAN); 200 beginShape(action,TRIANGLE_FAN);
199 index = indices[nf * 5]; 201 index = indices[nf * 5];
200 x = points[index][0]; 202 x = points[index][0];
201 y = points[index][1]; 203 y = points[index][1];
202 z = points[index][2]; 204 z = points[index][2];
203 GEN_VERTEX(pv,x,y,z,0.0,0.0,normals[nf][0] 205 GEN_VERTEX(pv,x,y,z,0.0,0.0,normals[nf][0],normals[nf][1],normals[nf][2]);
204 index = indices[nf * 5 + 1]; 206 index = indices[nf * 5 + 1];
205 x = points[index][0]; 207 x = points[index][0];
206 y = points[index][1]; 208 y = points[index][1];
207 z = points[index][2]; 209 z = points[index][2];
208 GEN_VERTEX(pv,x,y,z,0.0,0.0,normals[nf][0] 210 GEN_VERTEX(pv,x,y,z,0.0,0.0,normals[nf][0],normals[nf][1],normals[nf][2]);
209 index = indices[nf * 5 + 2]; 211 index = indices[nf * 5 + 2];
210 x = points[index][0]; 212 x = points[index][0];
211 y = points[index][1]; 213 y = points[index][1];
212 z = points[index][2]; 214 z = points[index][2];
213 GEN_VERTEX(pv,x,y,z,0.0,0.0,normals[nf][0] 215 GEN_VERTEX(pv,x,y,z,0.0,0.0,normals[nf][0],normals[nf][1],normals[nf][2]);
214 index = indices[nf * 5 + 3]; 216 index = indices[nf * 5 + 3];
215 x = points[index][0]; 217 x = points[index][0];
216 y = points[index][1]; 218 y = points[index][1];
217 z = points[index][2]; 219 z = points[index][2];
218 GEN_VERTEX(pv,x,y,z,0.0,0.0,normals[nf][0] 220 GEN_VERTEX(pv,x,y,z,0.0,0.0,normals[nf][0],normals[nf][1],normals[nf][2]);
219 endShape(); 221 endShape();
220 } 222 }
221 } 223 }
222 224
223 // getChildren 225 // getChildren
224 SoChildList *SoTrd::getChildren() const { 226 SoChildList *SoTrd::getChildren() const {
225 return children; 227 return children;
226 } 228 }
227 229
228 230
229 // computeBBox 231 // computeBBox
230 void SoTrd::computeBBox(SoAction *, SbBox3f &b 232 void SoTrd::computeBBox(SoAction *, SbBox3f &box, SbVec3f ¢er ){
231 float fDx= fDx1.getValue(),fDy=fDy1.getValue 233 float fDx= fDx1.getValue(),fDy=fDy1.getValue();
232 234
233 if (fDx2.getValue() > fDx) fDx = fDx2.getVal 235 if (fDx2.getValue() > fDx) fDx = fDx2.getValue();
234 if (fDy2.getValue() > fDy) fDy = fDy2.getVal 236 if (fDy2.getValue() > fDy) fDy = fDy2.getValue();
235 237
236 SbVec3f vmin(-fDx,-fDy,-fDz.getValue()), 238 SbVec3f vmin(-fDx,-fDy,-fDz.getValue()),
237 vmax( fDx, fDy, fDz.getValue()); 239 vmax( fDx, fDy, fDz.getValue());
238 240
239 center.setValue(0,0,0); 241 center.setValue(0,0,0);
240 box.setBounds(vmin,vmax); 242 box.setBounds(vmin,vmax);
241 } 243 }
242 244
243 245
244 246
245 247
246 // updateChildren 248 // updateChildren
247 void SoTrd::updateChildren() { 249 void SoTrd::updateChildren() {
248 250
249 251
250 // Redraw the G4Trd.... 252 // Redraw the G4Trd....
251 253
252 assert(children->getLength()==1); 254 assert(children->getLength()==1);
253 SoSeparator *sep = (SoS 255 SoSeparator *sep = (SoSeparator *) ( *children)[0];
254 SoCoordinate3 *theCoordinates = (SoC 256 SoCoordinate3 *theCoordinates = (SoCoordinate3 *) ( sep->getChild(0));
255 SoNormal *theNormals = (SoN 257 SoNormal *theNormals = (SoNormal *) ( sep->getChild(1));
256 SoNormalBinding *theNormalBinding = (SoN 258 SoNormalBinding *theNormalBinding = (SoNormalBinding *) ( sep->getChild(2));
257 SoIndexedFaceSet *theFaceSet = (SoI 259 SoIndexedFaceSet *theFaceSet = (SoIndexedFaceSet *) ( sep->getChild(3));
258 260
259 const int NPOINTS=8, NFACES=6, NINDICES = NF 261 const int NPOINTS=8, NFACES=6, NINDICES = NFACES*5;
260 float points[NPOINTS][3]; 262 float points[NPOINTS][3];
261 float normals[NFACES][3]= {{0,0,-1}, {0,0,1} 263 float normals[NFACES][3]= {{0,0,-1}, {0,0,1}, {0,1,0}, {-1, 0, 0}, {0, -1, 0}, {1,0,0}};
262 264
263 // Indices for the eight faces 265 // Indices for the eight faces
264 #ifdef INVENTOR2_0 266 #ifdef INVENTOR2_0
265 static long 267 static long
266 #else 268 #else
267 static int32_t 269 static int32_t
268 #endif 270 #endif
269 indices[NINDICES] = {3,2,1,0, SO_END_FACE_IN 271 indices[NINDICES] = {3,2,1,0, SO_END_FACE_INDEX, // bottom
270 4,5,6,7 272 4,5,6,7, SO_END_FACE_INDEX, // top
271 0,1,5,4 273 0,1,5,4, SO_END_FACE_INDEX,
272 1,2,6,5 274 1,2,6,5, SO_END_FACE_INDEX,
273 2,3,7,6 275 2,3,7,6, SO_END_FACE_INDEX,
274 3,0,4,7 276 3,0,4,7, SO_END_FACE_INDEX};
275 277
276 278
277 // points for the eight vertices 279 // points for the eight vertices
278 points[0][0] = fDx1.getValue(); points[0][1 280 points[0][0] = fDx1.getValue(); points[0][1] = fDy1.getValue(); points[0][2] = -fDz.getValue();
279 points[1][0] = -fDx1.getValue(); points[1][1 281 points[1][0] = -fDx1.getValue(); points[1][1] = fDy1.getValue(); points[1][2] = -fDz.getValue();
280 points[2][0] = -fDx1.getValue(); points[2][1 282 points[2][0] = -fDx1.getValue(); points[2][1] = -fDy1.getValue(); points[2][2] = -fDz.getValue();
281 points[3][0] = fDx1.getValue(); points[3][1 283 points[3][0] = fDx1.getValue(); points[3][1] = -fDy1.getValue(); points[3][2] = -fDz.getValue();
282 points[4][0] = fDx2.getValue(); points[4][1 284 points[4][0] = fDx2.getValue(); points[4][1] = fDy2.getValue(); points[4][2] = fDz.getValue();
283 points[5][0] = -fDx2.getValue(); points[5][1 285 points[5][0] = -fDx2.getValue(); points[5][1] = fDy2.getValue(); points[5][2] = fDz.getValue();
284 points[6][0] = -fDx2.getValue(); points[6][1 286 points[6][0] = -fDx2.getValue(); points[6][1] = -fDy2.getValue(); points[6][2] = fDz.getValue();
285 points[7][0] = fDx2.getValue(); points[7][1 287 points[7][0] = fDx2.getValue(); points[7][1] = -fDy2.getValue(); points[7][2] = fDz.getValue();
286 288
287 float t1 = FATAN((fDx2.getValue()-fDx1.getVa 289 float t1 = FATAN((fDx2.getValue()-fDx1.getValue())/(2*fDz.getValue()));
288 float t2 = FATAN((fDy2.getValue()-fDy1.getVa 290 float t2 = FATAN((fDy2.getValue()-fDy1.getValue())/(2*fDz.getValue()));
289 float st1 = FSIN(t1); 291 float st1 = FSIN(t1);
290 float st2 = FSIN(t2); 292 float st2 = FSIN(t2);
291 float ct1 = FCOS(t1); 293 float ct1 = FCOS(t1);
292 float ct2 = FCOS(t2); 294 float ct2 = FCOS(t2);
293 295
294 normals[0][0] = 0 ; normals[0][1] = 0; 296 normals[0][0] = 0 ; normals[0][1] = 0; normals [0][2] = -1;
295 normals[1][0] = 0 ; normals[1][1] = 0; 297 normals[1][0] = 0 ; normals[1][1] = 0; normals [1][2] = 1;
296 normals[2][0] = 0 ; normals[2][1] = ct2; 298 normals[2][0] = 0 ; normals[2][1] = ct2; normals [2][2] = -st2;
297 normals[3][0] = -ct1; normals[3][1] = 0; 299 normals[3][0] = -ct1; normals[3][1] = 0; normals [3][2] = -st1;
298 normals[4][0] = 0 ; normals[4][1] = -ct2; 300 normals[4][0] = 0 ; normals[4][1] = -ct2; normals [4][2] = -st2;
299 normals[5][0] = ct1; normals[5][1] = 0; 301 normals[5][0] = ct1; normals[5][1] = 0; normals [5][2] = -st1;
300 302
301 for (int np=0;np<NPOINTS;np++) theCoordinate 303 for (int np=0;np<NPOINTS;np++) theCoordinates->point.set1Value(np,points[np][0],points[np][1],points[np][2]);
302 theFaceSet->coordIndex.setValues(0,NINDICES, 304 theFaceSet->coordIndex.setValues(0,NINDICES,indices);
303 for (int nf=0;nf<NFACES;nf++) theNormals->ve 305 for (int nf=0;nf<NFACES;nf++) theNormals->vector.set1Value(nf,normals[nf][0],normals[nf][1],normals[nf][2]);
304 theNormalBinding->value=SoNormalBinding::PER 306 theNormalBinding->value=SoNormalBinding::PER_FACE;
305 } 307 }
306 308
307 // generateChildren 309 // generateChildren
308 void SoTrd::generateChildren() { 310 void SoTrd::generateChildren() {
309 311
310 // This routines creates one SoSeparator, on 312 // This routines creates one SoSeparator, one SoCoordinate3, and
311 // one SoLineSet, and puts it in the child l 313 // one SoLineSet, and puts it in the child list. This is done only
312 // once, whereas redrawing the position of t 314 // once, whereas redrawing the position of the coordinates occurs each
313 // time an update is necessary, in the updat 315 // time an update is necessary, in the updateChildren routine.
314 316
315 assert(children->getLength() ==0); 317 assert(children->getLength() ==0);
316 SoSeparator *sep = new SoS 318 SoSeparator *sep = new SoSeparator();
317 SoCoordinate3 *theCoordinates = new SoC 319 SoCoordinate3 *theCoordinates = new SoCoordinate3();
318 SoNormal *theNormals = new SoN 320 SoNormal *theNormals = new SoNormal();
319 SoNormalBinding *theNormalBinding = new SoN 321 SoNormalBinding *theNormalBinding = new SoNormalBinding();
320 SoIndexedFaceSet *theFaceSet = new SoI 322 SoIndexedFaceSet *theFaceSet = new SoIndexedFaceSet();
321 // 323 //
322 // This line costs some in render quality! b 324 // This line costs some in render quality! but gives speed.
323 // 325 //
324 sep->addChild(theCoordinates); 326 sep->addChild(theCoordinates);
325 sep->addChild(theNormals); 327 sep->addChild(theNormals);
326 sep->addChild(theNormalBinding); 328 sep->addChild(theNormalBinding);
327 sep->addChild(theFaceSet); 329 sep->addChild(theFaceSet);
328 children->append(sep); 330 children->append(sep);
329 } 331 }
330 332
331 // generateAlternateRep 333 // generateAlternateRep
332 void SoTrd::generateAlternateRep() { 334 void SoTrd::generateAlternateRep() {
333 335
334 // This routine sets the alternate represent 336 // This routine sets the alternate representation to the child
335 // list of this mode. 337 // list of this mode.
336 338
337 if (children->getLength() == 0) generateChil 339 if (children->getLength() == 0) generateChildren();
338 updateChildren(); 340 updateChildren();
339 alternateRep.setValue((SoSeparator *) ( *ch 341 alternateRep.setValue((SoSeparator *) ( *children)[0]);
340 } 342 }
341 343
342 // clearAlternateRep 344 // clearAlternateRep
343 void SoTrd::clearAlternateRep() { 345 void SoTrd::clearAlternateRep() {
344 alternateRep.setValue(NULL); 346 alternateRep.setValue(NULL);
345 } 347 }
>> 348
>> 349 #endif
346 350