| Geant4 Cross Reference |
1 // 1 //
2 // ******************************************* 2 // ********************************************************************
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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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12 // * institutes,nor the agencies providing fin 12 // * institutes,nor the agencies providing financial support for this *
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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 #include <assert.h> 37 #include <assert.h>
38 #include <cmath> 38 #include <cmath>
39 39
40 #include <Inventor/SbBox.h> 40 #include <Inventor/SbBox.h>
41 #include <Inventor/actions/SoAction.h> 41 #include <Inventor/actions/SoAction.h>
42 #include <Inventor/fields/SoSFFloat.h> 42 #include <Inventor/fields/SoSFFloat.h>
43 #include <Inventor/misc/SoChildList.h> 43 #include <Inventor/misc/SoChildList.h>
44 #include <Inventor/nodes/SoSeparator.h> 44 #include <Inventor/nodes/SoSeparator.h>
45 #include <Inventor/nodes/SoIndexedFaceSet.h> 45 #include <Inventor/nodes/SoIndexedFaceSet.h>
46 #include <Inventor/nodes/SoNormal.h> 46 #include <Inventor/nodes/SoNormal.h>
47 #include <Inventor/nodes/SoCoordinate3.h> 47 #include <Inventor/nodes/SoCoordinate3.h>
48 #include <Inventor/nodes/SoNormalBinding.h> 48 #include <Inventor/nodes/SoNormalBinding.h>
49 #include <Inventor/SoPrimitiveVertex.h> 49 #include <Inventor/SoPrimitiveVertex.h>
50 #include <Inventor/elements/SoTextureCoordinat 50 #include <Inventor/elements/SoTextureCoordinateElement.h>
51 51
52 #include "HEPVis/SbMath.h" 52 #include "HEPVis/SbMath.h"
53 #include "HEPVis/nodes/SoTrd.h" 53 #include "HEPVis/nodes/SoTrd.h"
54 54
55 // This statement is required 55 // This statement is required
56 SO_NODE_SOURCE(SoTrd) 56 SO_NODE_SOURCE(SoTrd)
57 57
58 // initClass 58 // initClass
59 void SoTrd::initClass(){ 59 void SoTrd::initClass(){
60 static bool first = true; 60 static bool first = true;
61 if (first) { 61 if (first) {
62 first = false; 62 first = false;
63 SO_NODE_INIT_CLASS(SoTrd,SoShape,"Shape"); 63 SO_NODE_INIT_CLASS(SoTrd,SoShape,"Shape");
64 } 64 }
65 } 65 }
66 // Constructor 66 // Constructor
67 SoTrd::SoTrd() { 67 SoTrd::SoTrd() {
68 // This statement is required 68 // This statement is required
69 SO_NODE_CONSTRUCTOR(SoTrd); 69 SO_NODE_CONSTRUCTOR(SoTrd);
70 // Data fields are initialized like this: 70 // Data fields are initialized like this:
71 SO_NODE_ADD_FIELD(fDx1,(1.0)); 71 SO_NODE_ADD_FIELD(fDx1,(1.0));
72 SO_NODE_ADD_FIELD(fDx2,(1.0)); 72 SO_NODE_ADD_FIELD(fDx2,(1.0));
73 SO_NODE_ADD_FIELD(fDy1,(1.0)); 73 SO_NODE_ADD_FIELD(fDy1,(1.0));
74 SO_NODE_ADD_FIELD(fDy2,(1.0)); 74 SO_NODE_ADD_FIELD(fDy2,(1.0));
75 SO_NODE_ADD_FIELD(fDz,(1.0)); 75 SO_NODE_ADD_FIELD(fDz,(1.0));
76 SO_NODE_ADD_FIELD(alternateRep,(NULL)); 76 SO_NODE_ADD_FIELD(alternateRep,(NULL));
77 children = new SoChildList(this); 77 children = new SoChildList(this);
78 } 78 }
79 // Destructor 79 // Destructor
80 SoTrd::~SoTrd() { 80 SoTrd::~SoTrd() {
81 delete children; 81 delete children;
82 } 82 }
83 // generatePrimitives 83 // generatePrimitives
84 void SoTrd::generatePrimitives(SoAction *actio 84 void SoTrd::generatePrimitives(SoAction *action) {
85 // This variable is used to store each verte 85 // This variable is used to store each vertex
86 SoPrimitiveVertex pv; 86 SoPrimitiveVertex pv;
87 87
88 // Access the stat from the action 88 // Access the stat from the action
89 SoState *state = action->getState(); 89 SoState *state = action->getState();
90 90
91 // See if we have to use a texture coordinat 91 // See if we have to use a texture coordinate function,
92 // rather than generating explicit texture c 92 // rather than generating explicit texture coordinates.
93 SbBool useTexFunction= 93 SbBool useTexFunction=
94 (SoTextureCoordinateElement::getType(state 94 (SoTextureCoordinateElement::getType(state) ==
95 SoTextureCoordinateElement::FUNCTION); 95 SoTextureCoordinateElement::FUNCTION);
96 96
97 // If we need to generate texture coordinate 97 // If we need to generate texture coordinates with a function,
98 // we'll need an SoGLTextureCoordinateElemen 98 // we'll need an SoGLTextureCoordinateElement. Otherwise, we'll
99 // set up the coordinates directly. 99 // set up the coordinates directly.
100 const SoTextureCoordinateElement *tce = NULL 100 const SoTextureCoordinateElement *tce = NULL;
101 SbVec4f texCoord; 101 SbVec4f texCoord;
102 if (useTexFunction) { 102 if (useTexFunction) {
103 tce = SoTextureCoordinateElement::getInsta 103 tce = SoTextureCoordinateElement::getInstance(state);
104 } 104 }
105 else { 105 else {
106 texCoord[2] = 0.0; 106 texCoord[2] = 0.0;
107 texCoord[3] = 1.0; 107 texCoord[3] = 1.0;
108 } 108 }
109 SbVec3f point, normal; 109 SbVec3f point, normal;
110 110
111 111
112 ////////////////////////////////////////// 112 //////////////////////////////////////////
113 //---------------------------------------- 113 //----------------------------------------
114 #define GEN_VERTEX(pv,x,y,z,s,t,nx,ny,nz) \ 114 #define GEN_VERTEX(pv,x,y,z,s,t,nx,ny,nz) \
115 point.setValue(x,y,z); \ 115 point.setValue(x,y,z); \
116 normal.setValue(nx,ny,nz); \ 116 normal.setValue(nx,ny,nz); \
117 if (useTexFunction) { \ 117 if (useTexFunction) { \
118 texCoord=tce->get(point,normal); \ 118 texCoord=tce->get(point,normal); \
119 } \ 119 } \
120 else { \ 120 else { \
121 texCoord[0]=s; \ 121 texCoord[0]=s; \
122 texCoord[1]=t; \ 122 texCoord[1]=t; \
123 } \ 123 } \
124 pv.setPoint(point); \ 124 pv.setPoint(point); \
125 pv.setNormal(normal); \ 125 pv.setNormal(normal); \
126 pv.setTextureCoords(texCoord); \ 126 pv.setTextureCoords(texCoord); \
127 shapeVertex(&pv); 127 shapeVertex(&pv);
128 //---------------------------------------- 128 //----------------------------------------
129 ////////////////////////////////////////// 129 //////////////////////////////////////////
130 130
131 const int NPOINTS=8, NFACES=6, NINDICES = NF 131 const int NPOINTS=8, NFACES=6, NINDICES = NFACES*5;
132 int indices[NINDICES] = {3,2,1,0, SO_END_FAC 132 int indices[NINDICES] = {3,2,1,0, SO_END_FACE_INDEX, //z back.
133 4,5,6,7, SO_END_FACE_INDEX, //z fron 133 4,5,6,7, SO_END_FACE_INDEX, //z front.
134 0,1,5,4, SO_END_FACE_INDEX, //y up. 134 0,1,5,4, SO_END_FACE_INDEX, //y up.
135 1,2,6,5, SO_END_FACE_INDEX, //x left 135 1,2,6,5, SO_END_FACE_INDEX, //x left.
136 2,3,7,6, SO_END_FACE_INDEX, //y down 136 2,3,7,6, SO_END_FACE_INDEX, //y down.
137 3,0,4,7, SO_END_FACE_INDEX}; //x righ 137 3,0,4,7, SO_END_FACE_INDEX}; //x right.
138 138
139 139
140 // points for the eight vertices 140 // points for the eight vertices
141 float points[NPOINTS][3]; 141 float points[NPOINTS][3];
142 points[0][0] = fDx1.getValue(); 142 points[0][0] = fDx1.getValue();
143 points[0][1] = fDy1.getValue(); 143 points[0][1] = fDy1.getValue();
144 points[0][2] = -fDz.getValue(); 144 points[0][2] = -fDz.getValue();
145 145
146 points[1][0] = -fDx1.getValue(); 146 points[1][0] = -fDx1.getValue();
147 points[1][1] = fDy1.getValue(); 147 points[1][1] = fDy1.getValue();
148 points[1][2] = -fDz.getValue(); 148 points[1][2] = -fDz.getValue();
149 149
150 points[2][0] = -fDx1.getValue(); 150 points[2][0] = -fDx1.getValue();
151 points[2][1] = -fDy1.getValue(); 151 points[2][1] = -fDy1.getValue();
152 points[2][2] = -fDz.getValue(); 152 points[2][2] = -fDz.getValue();
153 153
154 points[3][0] = fDx1.getValue(); 154 points[3][0] = fDx1.getValue();
155 points[3][1] = -fDy1.getValue(); 155 points[3][1] = -fDy1.getValue();
156 points[3][2] = -fDz.getValue(); 156 points[3][2] = -fDz.getValue();
157 157
158 points[4][0] = fDx2.getValue(); 158 points[4][0] = fDx2.getValue();
159 points[4][1] = fDy2.getValue(); 159 points[4][1] = fDy2.getValue();
160 points[4][2] = fDz.getValue(); 160 points[4][2] = fDz.getValue();
161 161
162 points[5][0] = -fDx2.getValue(); 162 points[5][0] = -fDx2.getValue();
163 points[5][1] = fDy2.getValue(); 163 points[5][1] = fDy2.getValue();
164 points[5][2] = fDz.getValue(); 164 points[5][2] = fDz.getValue();
165 165
166 points[6][0] = -fDx2.getValue(); 166 points[6][0] = -fDx2.getValue();
167 points[6][1] = -fDy2.getValue(); 167 points[6][1] = -fDy2.getValue();
168 points[6][2] = fDz.getValue(); 168 points[6][2] = fDz.getValue();
169 169
170 points[7][0] = fDx2.getValue(); 170 points[7][0] = fDx2.getValue();
171 points[7][1] = -fDy2.getValue(); 171 points[7][1] = -fDy2.getValue();
172 points[7][2] = fDz.getValue(); 172 points[7][2] = fDz.getValue();
173 173
174 float t1 = FATAN((fDx2.getValue()-fDx1.getV 174 float t1 = FATAN((fDx2.getValue()-fDx1.getValue())/(2*fDz.getValue()));
175 float t2 = FATAN((fDy2.getValue()-fDy1.getV 175 float t2 = FATAN((fDy2.getValue()-fDy1.getValue())/(2*fDz.getValue()));
176 float st1 = FSIN(t1); 176 float st1 = FSIN(t1);
177 float st2 = FSIN(t2); 177 float st2 = FSIN(t2);
178 float ct1 = FCOS(t1); 178 float ct1 = FCOS(t1);
179 float ct2 = FCOS(t2); 179 float ct2 = FCOS(t2);
180 180
181 float normals[NFACES][3]; 181 float normals[NFACES][3];
182 //z back. 182 //z back.
183 normals[0][0] = 0 ; normals[0][1] = 0; 183 normals[0][0] = 0 ; normals[0][1] = 0; normals [0][2] = -1;
184 //z front. 184 //z front.
185 normals[1][0] = 0 ; normals[1][1] = 0; 185 normals[1][0] = 0 ; normals[1][1] = 0; normals [1][2] = 1;
186 //y up. 186 //y up.
187 normals[2][0] = 0 ; normals[2][1] = ct2; 187 normals[2][0] = 0 ; normals[2][1] = ct2; normals [2][2] = -st2;
188 //x left. 188 //x left.
189 normals[3][0] = -ct1; normals[3][1] = 0; 189 normals[3][0] = -ct1; normals[3][1] = 0; normals [3][2] = -st1;
190 //y down. 190 //y down.
191 normals[4][0] = 0 ; normals[4][1] = -ct2; 191 normals[4][0] = 0 ; normals[4][1] = -ct2; normals [4][2] = -st2;
192 //x right. 192 //x right.
193 normals[5][0] = ct1; normals[5][1] = 0; 193 normals[5][0] = ct1; normals[5][1] = 0; normals [5][2] = -st1;
194 194
195 float x,y,z; 195 float x,y,z;
196 int index; 196 int index;
197 for (int nf=0;nf<NFACES;nf++) { 197 for (int nf=0;nf<NFACES;nf++) {
198 beginShape(action,TRIANGLE_FAN); 198 beginShape(action,TRIANGLE_FAN);
199 index = indices[nf * 5]; 199 index = indices[nf * 5];
200 x = points[index][0]; 200 x = points[index][0];
201 y = points[index][1]; 201 y = points[index][1];
202 z = points[index][2]; 202 z = points[index][2];
203 GEN_VERTEX(pv,x,y,z,0.0,0.0,normals[nf][0] 203 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]; 204 index = indices[nf * 5 + 1];
205 x = points[index][0]; 205 x = points[index][0];
206 y = points[index][1]; 206 y = points[index][1];
207 z = points[index][2]; 207 z = points[index][2];
208 GEN_VERTEX(pv,x,y,z,0.0,0.0,normals[nf][0] 208 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]; 209 index = indices[nf * 5 + 2];
210 x = points[index][0]; 210 x = points[index][0];
211 y = points[index][1]; 211 y = points[index][1];
212 z = points[index][2]; 212 z = points[index][2];
213 GEN_VERTEX(pv,x,y,z,0.0,0.0,normals[nf][0] 213 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]; 214 index = indices[nf * 5 + 3];
215 x = points[index][0]; 215 x = points[index][0];
216 y = points[index][1]; 216 y = points[index][1];
217 z = points[index][2]; 217 z = points[index][2];
218 GEN_VERTEX(pv,x,y,z,0.0,0.0,normals[nf][0] 218 GEN_VERTEX(pv,x,y,z,0.0,0.0,normals[nf][0],normals[nf][1],normals[nf][2]);
219 endShape(); 219 endShape();
220 } 220 }
221 } 221 }
222 222
223 // getChildren 223 // getChildren
224 SoChildList *SoTrd::getChildren() const { 224 SoChildList *SoTrd::getChildren() const {
225 return children; 225 return children;
226 } 226 }
227 227
228 228
229 // computeBBox 229 // computeBBox
230 void SoTrd::computeBBox(SoAction *, SbBox3f &b 230 void SoTrd::computeBBox(SoAction *, SbBox3f &box, SbVec3f ¢er ){
231 float fDx= fDx1.getValue(),fDy=fDy1.getValue 231 float fDx= fDx1.getValue(),fDy=fDy1.getValue();
232 232
233 if (fDx2.getValue() > fDx) fDx = fDx2.getVal 233 if (fDx2.getValue() > fDx) fDx = fDx2.getValue();
234 if (fDy2.getValue() > fDy) fDy = fDy2.getVal 234 if (fDy2.getValue() > fDy) fDy = fDy2.getValue();
235 235
236 SbVec3f vmin(-fDx,-fDy,-fDz.getValue()), 236 SbVec3f vmin(-fDx,-fDy,-fDz.getValue()),
237 vmax( fDx, fDy, fDz.getValue()); 237 vmax( fDx, fDy, fDz.getValue());
238 238
239 center.setValue(0,0,0); 239 center.setValue(0,0,0);
240 box.setBounds(vmin,vmax); 240 box.setBounds(vmin,vmax);
241 } 241 }
242 242
243 243
244 244
245 245
246 // updateChildren 246 // updateChildren
247 void SoTrd::updateChildren() { 247 void SoTrd::updateChildren() {
248 248
249 249
250 // Redraw the G4Trd.... 250 // Redraw the G4Trd....
251 251
252 assert(children->getLength()==1); 252 assert(children->getLength()==1);
253 SoSeparator *sep = (SoS 253 SoSeparator *sep = (SoSeparator *) ( *children)[0];
254 SoCoordinate3 *theCoordinates = (SoC 254 SoCoordinate3 *theCoordinates = (SoCoordinate3 *) ( sep->getChild(0));
255 SoNormal *theNormals = (SoN 255 SoNormal *theNormals = (SoNormal *) ( sep->getChild(1));
256 SoNormalBinding *theNormalBinding = (SoN 256 SoNormalBinding *theNormalBinding = (SoNormalBinding *) ( sep->getChild(2));
257 SoIndexedFaceSet *theFaceSet = (SoI 257 SoIndexedFaceSet *theFaceSet = (SoIndexedFaceSet *) ( sep->getChild(3));
258 258
259 const int NPOINTS=8, NFACES=6, NINDICES = NF 259 const int NPOINTS=8, NFACES=6, NINDICES = NFACES*5;
260 float points[NPOINTS][3]; 260 float points[NPOINTS][3];
261 float normals[NFACES][3]= {{0,0,-1}, {0,0,1} 261 float normals[NFACES][3]= {{0,0,-1}, {0,0,1}, {0,1,0}, {-1, 0, 0}, {0, -1, 0}, {1,0,0}};
262 262
263 // Indices for the eight faces 263 // Indices for the eight faces
264 #ifdef INVENTOR2_0 264 #ifdef INVENTOR2_0
265 static long 265 static long
266 #else 266 #else
267 static int32_t 267 static int32_t
268 #endif 268 #endif
269 indices[NINDICES] = {3,2,1,0, SO_END_FACE_IN 269 indices[NINDICES] = {3,2,1,0, SO_END_FACE_INDEX, // bottom
270 4,5,6,7 270 4,5,6,7, SO_END_FACE_INDEX, // top
271 0,1,5,4 271 0,1,5,4, SO_END_FACE_INDEX,
272 1,2,6,5 272 1,2,6,5, SO_END_FACE_INDEX,
273 2,3,7,6 273 2,3,7,6, SO_END_FACE_INDEX,
274 3,0,4,7 274 3,0,4,7, SO_END_FACE_INDEX};
275 275
276 276
277 // points for the eight vertices 277 // points for the eight vertices
278 points[0][0] = fDx1.getValue(); points[0][1 278 points[0][0] = fDx1.getValue(); points[0][1] = fDy1.getValue(); points[0][2] = -fDz.getValue();
279 points[1][0] = -fDx1.getValue(); points[1][1 279 points[1][0] = -fDx1.getValue(); points[1][1] = fDy1.getValue(); points[1][2] = -fDz.getValue();
280 points[2][0] = -fDx1.getValue(); points[2][1 280 points[2][0] = -fDx1.getValue(); points[2][1] = -fDy1.getValue(); points[2][2] = -fDz.getValue();
281 points[3][0] = fDx1.getValue(); points[3][1 281 points[3][0] = fDx1.getValue(); points[3][1] = -fDy1.getValue(); points[3][2] = -fDz.getValue();
282 points[4][0] = fDx2.getValue(); points[4][1 282 points[4][0] = fDx2.getValue(); points[4][1] = fDy2.getValue(); points[4][2] = fDz.getValue();
283 points[5][0] = -fDx2.getValue(); points[5][1 283 points[5][0] = -fDx2.getValue(); points[5][1] = fDy2.getValue(); points[5][2] = fDz.getValue();
284 points[6][0] = -fDx2.getValue(); points[6][1 284 points[6][0] = -fDx2.getValue(); points[6][1] = -fDy2.getValue(); points[6][2] = fDz.getValue();
285 points[7][0] = fDx2.getValue(); points[7][1 285 points[7][0] = fDx2.getValue(); points[7][1] = -fDy2.getValue(); points[7][2] = fDz.getValue();
286 286
287 float t1 = FATAN((fDx2.getValue()-fDx1.getVa 287 float t1 = FATAN((fDx2.getValue()-fDx1.getValue())/(2*fDz.getValue()));
288 float t2 = FATAN((fDy2.getValue()-fDy1.getVa 288 float t2 = FATAN((fDy2.getValue()-fDy1.getValue())/(2*fDz.getValue()));
289 float st1 = FSIN(t1); 289 float st1 = FSIN(t1);
290 float st2 = FSIN(t2); 290 float st2 = FSIN(t2);
291 float ct1 = FCOS(t1); 291 float ct1 = FCOS(t1);
292 float ct2 = FCOS(t2); 292 float ct2 = FCOS(t2);
293 293
294 normals[0][0] = 0 ; normals[0][1] = 0; 294 normals[0][0] = 0 ; normals[0][1] = 0; normals [0][2] = -1;
295 normals[1][0] = 0 ; normals[1][1] = 0; 295 normals[1][0] = 0 ; normals[1][1] = 0; normals [1][2] = 1;
296 normals[2][0] = 0 ; normals[2][1] = ct2; 296 normals[2][0] = 0 ; normals[2][1] = ct2; normals [2][2] = -st2;
297 normals[3][0] = -ct1; normals[3][1] = 0; 297 normals[3][0] = -ct1; normals[3][1] = 0; normals [3][2] = -st1;
298 normals[4][0] = 0 ; normals[4][1] = -ct2; 298 normals[4][0] = 0 ; normals[4][1] = -ct2; normals [4][2] = -st2;
299 normals[5][0] = ct1; normals[5][1] = 0; 299 normals[5][0] = ct1; normals[5][1] = 0; normals [5][2] = -st1;
300 300
301 for (int np=0;np<NPOINTS;np++) theCoordinate 301 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, 302 theFaceSet->coordIndex.setValues(0,NINDICES,indices);
303 for (int nf=0;nf<NFACES;nf++) theNormals->ve 303 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 304 theNormalBinding->value=SoNormalBinding::PER_FACE;
305 } 305 }
306 306
307 // generateChildren 307 // generateChildren
308 void SoTrd::generateChildren() { 308 void SoTrd::generateChildren() {
309 309
310 // This routines creates one SoSeparator, on 310 // This routines creates one SoSeparator, one SoCoordinate3, and
311 // one SoLineSet, and puts it in the child l 311 // one SoLineSet, and puts it in the child list. This is done only
312 // once, whereas redrawing the position of t 312 // once, whereas redrawing the position of the coordinates occurs each
313 // time an update is necessary, in the updat 313 // time an update is necessary, in the updateChildren routine.
314 314
315 assert(children->getLength() ==0); 315 assert(children->getLength() ==0);
316 SoSeparator *sep = new SoS 316 SoSeparator *sep = new SoSeparator();
317 SoCoordinate3 *theCoordinates = new SoC 317 SoCoordinate3 *theCoordinates = new SoCoordinate3();
318 SoNormal *theNormals = new SoN 318 SoNormal *theNormals = new SoNormal();
319 SoNormalBinding *theNormalBinding = new SoN 319 SoNormalBinding *theNormalBinding = new SoNormalBinding();
320 SoIndexedFaceSet *theFaceSet = new SoI 320 SoIndexedFaceSet *theFaceSet = new SoIndexedFaceSet();
321 // 321 //
322 // This line costs some in render quality! b 322 // This line costs some in render quality! but gives speed.
323 // 323 //
324 sep->addChild(theCoordinates); 324 sep->addChild(theCoordinates);
325 sep->addChild(theNormals); 325 sep->addChild(theNormals);
326 sep->addChild(theNormalBinding); 326 sep->addChild(theNormalBinding);
327 sep->addChild(theFaceSet); 327 sep->addChild(theFaceSet);
328 children->append(sep); 328 children->append(sep);
329 } 329 }
330 330
331 // generateAlternateRep 331 // generateAlternateRep
332 void SoTrd::generateAlternateRep() { 332 void SoTrd::generateAlternateRep() {
333 333
334 // This routine sets the alternate represent 334 // This routine sets the alternate representation to the child
335 // list of this mode. 335 // list of this mode.
336 336
337 if (children->getLength() == 0) generateChil 337 if (children->getLength() == 0) generateChildren();
338 updateChildren(); 338 updateChildren();
339 alternateRep.setValue((SoSeparator *) ( *ch 339 alternateRep.setValue((SoSeparator *) ( *children)[0]);
340 } 340 }
341 341
342 // clearAlternateRep 342 // clearAlternateRep
343 void SoTrd::clearAlternateRep() { 343 void SoTrd::clearAlternateRep() {
344 alternateRep.setValue(NULL); 344 alternateRep.setValue(NULL);
345 } 345 }
346 346