ATLAS Offline Software
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SoTubs.cxx
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1/*
2 Copyright (C) 2002-2024 CERN for the benefit of the ATLAS collaboration
3*/
4
5/*-----------------------------HEPVis---------------------------------------*/
6/* */
7/* Node: SoTubs */
8/* Description: Represents the G4Tubs Geant Geometry entity */
9/* Author: Joe Boudreau Nov 11 1996 */
10/* */
11/*--------------------------------------------------------------------------*/
12
13#include <VP1HEPVis/nodes/SoTubs.h>
14#include "RevolutionSurfaceUtil.h"
15
16#include <cassert>
17#include <cmath>
18
19#include <Inventor/SbBox.h>
20#include <Inventor/actions/SoGLRenderAction.h>
21// #include <Inventor/fields/SoSFFloat.h>
22#include <Inventor/misc/SoChildList.h>
23#include <Inventor/nodes/SoSeparator.h>
24#include <Inventor/nodes/SoIndexedFaceSet.h>
25#include <Inventor/nodes/SoNormal.h>
26#include <Inventor/nodes/SoCoordinate3.h>
27#include <Inventor/nodes/SoNormalBinding.h>
28#include <Inventor/SoPrimitiveVertex.h>
29#include <Inventor/elements/SoTextureCoordinateElement.h>
30#include <Inventor/elements/SoGLCacheContextElement.h>
31#include <Inventor/C/glue/gl.h>
32
33#include "SbMath.h"
34#include <iostream>
35
36// This statement is required
37SO_NODE_SOURCE(SoTubs)
38
39// Constructor
40SoTubs::SoTubs() {
41
42
43 // This statement is required
44 SO_NODE_CONSTRUCTOR(SoTubs);
45
46 // Data fields are initialized like this:
47 SO_NODE_ADD_FIELD(pRMin, (0));
48 SO_NODE_ADD_FIELD(pRMax, (1));
49 SO_NODE_ADD_FIELD(pDz, (10));
50 SO_NODE_ADD_FIELD(pSPhi, (0));
51 SO_NODE_ADD_FIELD(pDPhi, ((float)(2*M_PI)));
52 SO_NODE_ADD_FIELD(pOverrideNPhi, (0));
53 SO_NODE_ADD_FIELD(alternateRep, (NULL));
54 SO_NODE_ADD_FIELD(drawEdgeLines, (false));
55
56 m_children = std::make_unique<SoChildList>(this);
57
58 setNodeType(EXTENSION);
59}
60
61
62//____________________________________________________________________
63void SoTubs::initClass()
64{
65 [[maybe_unused]] static const bool didInit = [&]() {
66 SO_NODE_INIT_CLASS(SoTubs,SoShape,"Shape");
67 return true;
68 }();
69}
70
71// generatePrimitives
72void SoTubs::generatePrimitives(SoAction *action) {
73 // This variable is used to store each vertex
74 SoPrimitiveVertex pv;
75
76 // Access the stat from the action
77 SoState *state = action->getState();
78 if (!state)
79 return;
80
81 // See if we have to use a texture coordinate function,
82 // rather than generating explicit texture coordinates.
83 SbBool useTexFunction=
84 (SoTextureCoordinateElement::getType(state) ==
85 SoTextureCoordinateElement::FUNCTION);
86
87 // If we need to generate texture coordinates with a function,
88 // we'll need an SoGLTextureCoordinateElement. Otherwise, we'll
89 // set up the coordinates directly.
90 const SoTextureCoordinateElement* tce = NULL;
91 SbVec4f texCoord;
92 if (useTexFunction) {
93 tce = SoTextureCoordinateElement::getInstance(state);
94 }
95 else {
96 texCoord[2] = 0.0;
97 texCoord[3] = 1.0;
98 }
99 SbVec3f point, normal;
100
101
103 //-----------------------------------------------------
104#define GEN_VERTEX(pv,x,y,z,s,t,nx,ny,nz) \
105 point.setValue((float)(x),(float)(y),(float)(z)); \
106 normal.setValue((float)(nx),(float)(ny),(float)(nz)); \
107 if (useTexFunction) { \
108 texCoord=tce->get(point,normal); \
109 } else { \
110 texCoord[0]=(float)(s); \
111 texCoord[1]=(float)(t); \
112 } \
113 pv.setPoint(point); \
114 pv.setNormal(normal); \
115 pv.setTextureCoords(texCoord); \
116 shapeVertex(&pv);
117 //-----------------------------------------------------
119
120 int NPHI = RevolutionSurfaceUtil::nphiDivisions( pDPhi.getValue(), this->getComplexityValue(action), pOverrideNPhi.getValue() );
121
122 double deltaPhi = pDPhi.getValue()/NPHI, phi0 = pSPhi.getValue(),phi1=phi0+pDPhi.getValue();
123 double rMax=pRMax.getValue(),rMin=pRMin.getValue();
124 double zMax=pDz.getValue(),zMin=-zMax;
125 double cosPhi0=cos(phi0), sinPhi0=sin(phi0);
126 double cosPhi1=cos(phi1), sinPhi1=sin(phi1);
127 double cosDeltaPhi=cos(deltaPhi),sinDeltaPhi=sin(deltaPhi);
128 const bool noPhiCutout=fabs(pDPhi.getValue())==0.F || fabs(fabs(pDPhi.getValue())-2.0*M_PI)<0.01; // FIXME - better way to do this?
129 const bool disableLighting(glIsEnabled(GL_LIGHTING));
130 const bool transparencyOn(glIsEnabled(GL_BLEND));
131
132 //
133 // The outer surface!
134 //
135 int i;
136 double sinPhi,cosPhi;
137 beginShape(action,TRIANGLE_STRIP);
138 sinPhi=sinPhi0;
139 cosPhi=cosPhi0;
140 for (i = 0; i<=NPHI; i++) {
141 GEN_VERTEX(pv,rMax*cosPhi,rMax*sinPhi,zMax,0.0,0.0,cosPhi,sinPhi,0);
142 GEN_VERTEX(pv,rMax*cosPhi,rMax*sinPhi,zMin,1.0,1.0,cosPhi,sinPhi,0);
143 inc(sinPhi, cosPhi, sinDeltaPhi, cosDeltaPhi);
144 }
145 endShape();
146 //
147 // The inner surface!
148 //
149 if(rMin!=0.F) {
150 beginShape(action,TRIANGLE_STRIP);
151 sinPhi=sinPhi0;
152 cosPhi=cosPhi0;
153 for (i = 0; i<=NPHI; i++) {
154 GEN_VERTEX(pv,rMin*cosPhi,rMin*sinPhi,zMax,0.0,0.0,-cosPhi,-sinPhi,0);
155 GEN_VERTEX(pv,rMin*cosPhi,rMin*sinPhi,zMin,1.0,1.0,-cosPhi,-sinPhi,0);
156 inc(sinPhi, cosPhi, sinDeltaPhi, cosDeltaPhi);
157 }
158 endShape();
159 }
160// if (fabs(deltaPhi)<2.0*M_PI) { // Old value - probably responsible for the funny internal stuff.
161 if (!noPhiCutout) {
162
163 //
164 // The end - inner part of wedge
165 //
166
167 // FIXME - Use GL_POLYGON? Tried it - no change when selecting and seemed to mess up phong-type shading.
168 // Try again, to see if it's faster?
169
170 beginShape(action,TRIANGLE_STRIP);
171 sinPhi=sinPhi0;
172 cosPhi=cosPhi0;
173 GEN_VERTEX(pv,rMax*cosPhi,rMax*sinPhi,zMax,0.0,0.0,sinPhi,-cosPhi,0);
174 GEN_VERTEX(pv,rMax*cosPhi,rMax*sinPhi,zMin,1.0,1.0,sinPhi,-cosPhi,0);
175 GEN_VERTEX(pv,rMin*cosPhi,rMin*sinPhi,zMax,1.0,0.0,sinPhi,-cosPhi,0);
176 GEN_VERTEX(pv,rMin*cosPhi,rMin*sinPhi,zMin,0.0,1.0,sinPhi,-cosPhi,0);
177 endShape();
178 //
179 // The other end
180 //
181 beginShape(action,TRIANGLE_STRIP);
182 sinPhi=sinPhi1;
183 cosPhi=cosPhi1;
184 GEN_VERTEX(pv,rMax*cosPhi,rMax*sinPhi, zMax,0.0,0.0,-sinPhi,+cosPhi,0);
185 GEN_VERTEX(pv,rMax*cosPhi,rMax*sinPhi, zMin,1.0,1.0,-sinPhi,+cosPhi,0);
186 GEN_VERTEX(pv,rMin*cosPhi,rMin*sinPhi, zMax,1.0,0.0,-sinPhi,+cosPhi,0);
187 GEN_VERTEX(pv,rMin*cosPhi,rMin*sinPhi, zMin,0.0,1.0,-sinPhi,+cosPhi,0);
188 endShape();
189
190 if (drawEdgeLines.getValue()) {
191 if (disableLighting) glDisable(GL_LIGHTING);
192 if (transparencyOn) glDisable(GL_BLEND);
193
194 glBegin(GL_LINES);
195 glVertex3f(rMax*cosPhi0,rMax*sinPhi0, zMax);
196 glVertex3f(rMax*cosPhi0,rMax*sinPhi0, zMin);
197 glVertex3f(rMin*cosPhi0,rMin*sinPhi0, zMax);
198 glVertex3f(rMin*cosPhi0,rMin*sinPhi0, zMin);
199 glVertex3f(rMax*cosPhi1,rMax*sinPhi1, zMax);
200 glVertex3f(rMax*cosPhi1,rMax*sinPhi1, zMin);
201 glVertex3f(rMin*cosPhi1,rMin*sinPhi1, zMax);
202 glVertex3f(rMin*cosPhi1,rMin*sinPhi1, zMin);
203 glEnd();
204 if (disableLighting) glEnable(GL_LIGHTING);
205 if (transparencyOn) glEnable(GL_BLEND);
206 }
207
208 }
209 //
210 // The outer surface at z=+PDZ
211 //
212 if(rMin==0.F) {
213 beginShape(action,TRIANGLE_FAN);
214 sinPhi=sinPhi0;
215 cosPhi=cosPhi0;
216 GEN_VERTEX(pv,0,0,zMax,0.0,0.0,0,0,1);
217 for (i = 0; i<=NPHI; i++) {
218 GEN_VERTEX(pv,rMax*cosPhi,rMax*sinPhi,zMax,1.0,1.0,0,0,1);
219 inc(sinPhi, cosPhi, sinDeltaPhi, cosDeltaPhi);
220 }
221 endShape();
222 //
223 // The outer surface at z=-PDZ
224 //
225 beginShape(action,TRIANGLE_FAN);
226 sinPhi=sinPhi0;
227 cosPhi=cosPhi0;
228 GEN_VERTEX(pv,0,0,zMin,0.0,0.0,0,0,-1);
229 for (i = 0; i<=NPHI; i++) {
230 GEN_VERTEX(pv,rMax*cosPhi,rMax*sinPhi,zMin,1.0,1.0,0,0,-1);
231 inc(sinPhi, cosPhi, sinDeltaPhi, cosDeltaPhi);
232 }
233 endShape();
234
235
236 if (drawEdgeLines.getValue()) {
237 if (disableLighting) glDisable(GL_LIGHTING);
238 if (transparencyOn) glDisable(GL_BLEND);
239 glBegin(GL_LINE_STRIP);
240 sinPhi=sinPhi0;
241 cosPhi=cosPhi0;
242 if (!noPhiCutout) glVertex3f(0,0,zMax); // only draw if phi range
243 for (i = 0; i<=NPHI; i++) {
244 glVertex3f(rMax*cosPhi,rMax*sinPhi,zMax);
245 inc(sinPhi, cosPhi, sinDeltaPhi, cosDeltaPhi);
246 }
247 if (!noPhiCutout) glVertex3f(0,0,zMax);
248
249 glEnd();
250
251 glBegin(GL_LINE_STRIP);
252 sinPhi=sinPhi0;
253 cosPhi=cosPhi0;
254 if (!noPhiCutout) glVertex3f(0,0,zMin); // only draw if phi range
255 for (i = 0; i<=NPHI; i++) {
256 glVertex3f(rMax*cosPhi,rMax*sinPhi,zMin);
257 inc(sinPhi, cosPhi, sinDeltaPhi, cosDeltaPhi);
258 }
259 if (!noPhiCutout) glVertex3f(0,0,zMin);
260
261 glEnd();
262
263 if (disableLighting) glEnable(GL_LIGHTING);
264 if (transparencyOn) glEnable(GL_BLEND);
265 }
266
267 } else {
268 beginShape(action,TRIANGLE_STRIP);
269 sinPhi=sinPhi0;
270 cosPhi=cosPhi0;
271 for (i = 0; i<=NPHI; i++) {
272 GEN_VERTEX(pv,rMin*cosPhi,rMin*sinPhi,zMax,0.0,0.0,0,0,1);
273 GEN_VERTEX(pv,rMax*cosPhi,rMax*sinPhi,zMax,1.0,1.0,0,0,1);
274 inc(sinPhi, cosPhi, sinDeltaPhi, cosDeltaPhi);
275 }
276 endShape();
277 //
278 // The outer surface at z=-PDZ
279 //
280 beginShape(action,TRIANGLE_STRIP);
281 sinPhi=sinPhi0;
282 cosPhi=cosPhi0;
283 for (i = 0; i<=NPHI; i++) {
284 GEN_VERTEX(pv,rMin*cosPhi,rMin*sinPhi,zMin,0.0,0.0,0,0,-1);
285 GEN_VERTEX(pv,rMax*cosPhi,rMax*sinPhi,zMin,1.0,1.0,0,0,-1);
286 inc(sinPhi, cosPhi, sinDeltaPhi, cosDeltaPhi);
287 }
288 endShape();
289
290 if (drawEdgeLines.getValue()) {
291 if (disableLighting) glDisable(GL_LIGHTING);
292 if (transparencyOn) glDisable(GL_BLEND);
293 glBegin(GL_LINE_STRIP);
294 sinPhi=sinPhi0;
295 cosPhi=cosPhi0;
296 if (!noPhiCutout) glVertex3f(rMin*cosPhi,rMin*sinPhi,zMax); // only draw if phi range
297 for (i = 0; i<=NPHI; i++) {
298 glVertex3f(rMax*cosPhi,rMax*sinPhi,zMax);
299 inc(sinPhi, cosPhi, sinDeltaPhi, cosDeltaPhi);
300 }
301 if (!noPhiCutout) glVertex3f(rMin*cosPhi1,rMin*sinPhi1,zMax); // only draw if phi range
302 glEnd();
303
304 glBegin(GL_LINE_STRIP);
305 sinPhi=sinPhi0;
306 cosPhi=cosPhi0;
307 for (i = 0; i<=NPHI; i++) {
308 glVertex3f(rMin*cosPhi,rMin*sinPhi,zMax);
309 inc(sinPhi, cosPhi, sinDeltaPhi, cosDeltaPhi);
310 }
311 glEnd();
312
313 glBegin(GL_LINE_STRIP);
314 sinPhi=sinPhi0;
315 cosPhi=cosPhi0;
316 if (!noPhiCutout) glVertex3f(rMin*cosPhi,rMin*sinPhi,zMin); // only draw if phi range
317 for (i = 0; i<=NPHI; i++) {
318 glVertex3f(rMax*cosPhi,rMax*sinPhi,zMin);
319 inc(sinPhi, cosPhi, sinDeltaPhi, cosDeltaPhi);
320 }
321 if (!noPhiCutout) glVertex3f(rMin*cosPhi1,rMin*sinPhi1,zMin); // only draw if phi range
322 glEnd();
323
324 glBegin(GL_LINE_STRIP);
325 sinPhi=sinPhi0;
326 cosPhi=cosPhi0;
327 for (i = 0; i<=NPHI; i++) {
328 glVertex3f(rMin*cosPhi,rMin*sinPhi,zMin);
329 inc(sinPhi, cosPhi, sinDeltaPhi, cosDeltaPhi);
330 }
331 glEnd();
332
333 if (disableLighting) glEnable(GL_LIGHTING);
334 if (transparencyOn) glEnable(GL_BLEND);
335 }
336
337 }
338
339 if (state&&state->isElementEnabled(SoGLCacheContextElement::getClassStackIndex())) {
340 //Encourage auto caching
341 SoGLCacheContextElement::shouldAutoCache(state, SoGLCacheContextElement::DO_AUTO_CACHE);
342#if ((COIN_MAJOR_VERSION>=3)||((COIN_MAJOR_VERSION==2)&&(COIN_MINOR_VERSION>=5)))
343 SoGLCacheContextElement::incNumShapes(state);
344#endif
345 }
346}
347
348// getChildren
349SoChildList *SoTubs::getChildren() const {
350 return m_children.get();
351}
352
353
354// computeBBox
355void SoTubs::computeBBox(SoAction *, SbBox3f &box, SbVec3f &center ){
356 RevolutionSurfaceUtil::setBBoxPars(pSPhi.getValue(), pDPhi.getValue(),
357 pRMin.getValue(), pRMax.getValue(),
358 -pDz.getValue(),pDz.getValue(),
359 box, center );
360}
361
362
363// updateChildren
364void SoTubs::updateChildren() {
365
366 // Redraw the G4Tubs....
367
368 assert(m_children->getLength()==1);
369 SoSeparator *sep = (SoSeparator *) ( *m_children)[0];
370 SoCoordinate3 *theCoordinates = (SoCoordinate3 *) ( sep->getChild(0));
371 SoNormal *theNormals = (SoNormal *) ( sep->getChild(1));
372 SoNormalBinding *theNormalBinding = (SoNormalBinding *) ( sep->getChild(2));
373 SoIndexedFaceSet *theFaceSet = (SoIndexedFaceSet *) ( sep->getChild(3));
374
375
376 const int NPHI=96, NPOINTS=2*(2*NPHI+2), NFACES=4*NPHI+2, NINDICES = NFACES*5;
377 float points[NPOINTS][3],normals[NFACES][3];
378#ifdef INVENTOR2_0
379 static long indices[NINDICES];
380#else
381 static int32_t indices[NINDICES];
382#endif
383
384 static int init=0;
385 double phi, pp, DeltaPhi;
386
387 // Indices need to be generated once! This is here to keep it close to the point
388 // generation, since otherwise it will be confusing.
389
390 int i;
391 if (!init) {
392 init = 1;
393 // Outer face
394 for (i = 0; i< NPHI; i++) {
395 // 0 1 3 2;
396 indices[5*i+0] = 2*i+0;
397 indices[5*i+1] = 2*i+1;
398 indices[5*i+2] = 2*i+3;
399 indices[5*i+3] = 2*i+2;
400 indices[5*i+4] = SO_END_FACE_INDEX;
401 }
402 // the inner face
403 for (i=0;i<NPHI;i++) {
404 indices[5*1*NPHI + 5*i+0] = 2*NPHI+2 + 2*i+0;
405 indices[5*1*NPHI + 5*i+1] = 2*NPHI+2 + 2*i+1;
406 indices[5*1*NPHI + 5*i+2] = 2*NPHI+2 + 2*i+3;
407 indices[5*1*NPHI + 5*i+3] = 2*NPHI+2 + 2*i+2;
408 indices[5*1*NPHI + 5*i+4] = SO_END_FACE_INDEX;
409 }
410 // the top side
411 for (i=0;i<NPHI;i++) {
412 indices[5*2*NPHI + 5*i+0] = 2*i+0;
413 indices[5*2*NPHI + 5*i+1] = 2*i+2;
414 indices[5*2*NPHI + 5*i+2] = NPOINTS - (2*i+4);
415 indices[5*2*NPHI + 5*i+3] = NPOINTS - (2*i+2);
416 indices[5*2*NPHI + 5*i+4] = SO_END_FACE_INDEX;
417 }
418 // the bottom side
419 for (i=0;i<NPHI;i++) {
420 indices[5*3*NPHI + 5*i+0] = 2*i+1;
421 indices[5*3*NPHI + 5*i+1] = NPOINTS - (2*i+1);
422 indices[5*3*NPHI + 5*i+2] = NPOINTS - (2*i+3);
423 indices[5*3*NPHI + 5*i+3] = 2*i+3;
424 indices[5*3*NPHI + 5*i+4] = SO_END_FACE_INDEX;
425 }
426 // the odd side
427 indices[5*4*NPHI +0] = 2*NPHI;
428 indices[5*4*NPHI +1] = 2*NPHI+1;
429 indices[5*4*NPHI +2] = 2*NPHI+3;
430 indices[5*4*NPHI +3] = 2*NPHI+2;
431 indices[5*4*NPHI +4] = SO_END_FACE_INDEX;
432 // aother odd side
433 indices[5*4*NPHI +5 +0] = 0;
434 indices[5*4*NPHI +5 +1] = NPOINTS-2;
435 indices[5*4*NPHI +5 +2] = NPOINTS-1;
436 indices[5*4*NPHI +5 +3] = 1;
437 indices[5*4*NPHI +5 +4] = SO_END_FACE_INDEX;
438 }
439 // Points need to be generated each time:
440 if (pDPhi.getValue()<2*M_PI) {
441 // the odd side
442 indices[5*4*NPHI +0] = 2*NPHI;
443 indices[5*4*NPHI +1] = 2*NPHI+1;
444 indices[5*4*NPHI +2] = 2*NPHI+3;
445 indices[5*4*NPHI +3] = 2*NPHI+2;
446 indices[5*4*NPHI +4] = SO_END_FACE_INDEX;
447 // aother odd side
448 indices[5*4*NPHI +5 +0] = 0;
449 indices[5*4*NPHI +5 +1] = NPOINTS-2;
450 indices[5*4*NPHI +5 +2] = NPOINTS-1;
451 indices[5*4*NPHI +5 +3] = 1;
452 indices[5*4*NPHI +5 +4] = SO_END_FACE_INDEX;
453 }
454 else {
455 // the odd side
456 indices[5*4*NPHI +0] = SO_END_FACE_INDEX;
457 indices[5*4*NPHI +1] = SO_END_FACE_INDEX;
458 indices[5*4*NPHI +2] = SO_END_FACE_INDEX;
459 indices[5*4*NPHI +3] = SO_END_FACE_INDEX;
460 indices[5*4*NPHI +4] = SO_END_FACE_INDEX;
461 // aother odd side
462 indices[5*4*NPHI +5 +0] = SO_END_FACE_INDEX;
463 indices[5*4*NPHI +5 +1] = SO_END_FACE_INDEX;
464 indices[5*4*NPHI +5 +2] = SO_END_FACE_INDEX;
465 indices[5*4*NPHI +5 +3] = SO_END_FACE_INDEX;
466 indices[5*4*NPHI +5 +4] = SO_END_FACE_INDEX;
467 }
468 // The outer surface
469 DeltaPhi = pDPhi.getValue()/NPHI, phi = pSPhi.getValue();
470 for (i = 0; i<=NPHI; i++) {
471 points[2*i+0][0] = pRMax.getValue()*FCOS(phi);
472 points[2*i+0][1]= pRMax.getValue()*FSIN(phi);
473 points[2*i+0][2] = +pDz.getValue();
474
475 points[2*i+1][0] = pRMax.getValue()*FCOS(phi);
476 points[2*i+1][1]= pRMax.getValue()*FSIN(phi);
477 points[2*i+1][2] = -pDz.getValue();
478
479 pp = phi+DeltaPhi/2.0;
480 if (i!=NPHI) {
481 normals[i][0] = FCOS(pp);
482 normals[i][1] = FSIN(pp);
483 normals[i][2] = 0;
484 }
485 phi+=DeltaPhi;
486 }
487 // The inner surface
488 phi = pSPhi.getValue() + pDPhi.getValue();
489 for (i = 0; i<=NPHI; i++) {
490 points[2*NPHI+2+2*i+0][0] = pRMin.getValue()*FCOS(phi);
491 points[2*NPHI+2+2*i+0][1] = pRMin.getValue()*FSIN(phi);
492 points[2*NPHI+2+2*i+0][2] = +pDz.getValue();
493 points[2*NPHI+2+2*i+1][0] = pRMin.getValue()*FCOS(phi);
494 points[2*NPHI+2+2*i+1][1] = pRMin.getValue()*FSIN(phi);
495 points[2*NPHI+2+2*i+1][2] = -pDz.getValue();
496 pp = phi-DeltaPhi/2.0;
497 if (i!=NPHI) {
498 normals[NPHI+i][0] = -FCOS(pp);
499 normals[NPHI+i][1] = -FSIN(pp);
500 normals[NPHI+i][2] = 0;
501 }
502 phi-=DeltaPhi;
503 }
504 // The top side
505 for (i=0;i<NPHI;i++) {
506 normals[2*NPHI+i][0]=normals[2*NPHI+i][1]=0;
507 normals[2*NPHI+i][2]= 1.0;
508 }
509 // The bottom side
510 for (i=0;i<NPHI;i++) {
511 normals[3*NPHI+i][0]=normals[3*NPHI+i][1]=0;
512 normals[3*NPHI+i][2]= -1.0;
513 }
514 // The odd side
515 phi = pSPhi.getValue();
516 normals[4*NPHI+0][0]= FSIN(phi);
517 normals[4*NPHI+0][1]= -FCOS(phi);
518 normals[4*NPHI+0][2]=0;
519
520 // Another odd side
521 phi = pSPhi.getValue()+pDPhi.getValue();
522 normals[4*NPHI+1][0]= -FSIN(phi);
523 normals[4*NPHI+1][1]= +FCOS(phi);
524 normals[4*NPHI+1][2]=0;
525
526 for (int np=0;np<NPOINTS; np++) theCoordinates->point.set1Value(np,points[np][0],points[np][1],points[np][2]);
527 for (int ni=0;ni<NINDICES;ni++) theFaceSet->coordIndex.set1Value(ni,indices[ni]);
528 for (int nf=0;nf<NFACES;nf++) theNormals->vector.set1Value(nf,normals[nf][0],normals[nf][1],normals[nf][2]);
529 theNormalBinding->value=SoNormalBinding::PER_FACE;
530}
531
532// generateChildren
533void SoTubs::generateChildren() {
534
535 // This routines creates one SoSeparator, one SoCoordinate3, and
536 // one SoLineSet, and puts it in the child list. This is done only
537 // once, whereas redrawing the position of the coordinates occurs each
538 // time an update is necessary, in the updateChildren routine.
539
540 assert(m_children->getLength() ==0);
541 SoSeparator *sep = new SoSeparator();
542 SoCoordinate3 *theCoordinates = new SoCoordinate3();
543 SoNormal *theNormals = new SoNormal();
544 SoNormalBinding *theNormalBinding = new SoNormalBinding();
545 SoIndexedFaceSet *theFaceSet = new SoIndexedFaceSet();
546 //
547 // This line costs some in render quality! but gives speed.
548 //
549 sep->addChild(theCoordinates);
550 sep->addChild(theNormals);
551 sep->addChild(theNormalBinding);
552 sep->addChild(theFaceSet);
553 m_children->append(sep);
554}
555
556// generateAlternateRep
557void SoTubs::generateAlternateRep() {
558
559 // This routine sets the alternate representation to the child
560 // list of this mode.
561
562 if (m_children->getLength() == 0) generateChildren();
563 updateChildren();
564 alternateRep.setValue((SoSeparator *) ( *m_children)[0]);
565}
566
567// clearAlternateRep
568void SoTubs::clearAlternateRep() {
569 alternateRep.setValue(NULL);
570}
M_PI
#define M_PI
Definition ActiveFraction.h:11
deltaPhi
Scalar deltaPhi(const MatrixBase< Derived > &vec) const
Definition AmgMatrixBasePlugin.h:112
phi
Scalar phi() const
phi method
Definition AmgMatrixBasePlugin.h:67
FCOS
#define FCOS(x)
Definition SbMath.h:13
FSIN
#define FSIN(x)
Definition SbMath.h:14
GEN_VERTEX
#define GEN_VERTEX(pv, x, y, z, s, t, nx, ny, nz)
RevolutionSurfaceUtil::setBBoxPars
static void setBBoxPars(const float &sphi, const float &dphi, const float &rmin, const float &rmax, const float &zmin, const float &zmax, SbBox3f &box, SbVec3f &center)
Definition RevolutionSurfaceUtil.h:40
RevolutionSurfaceUtil::nphiDivisions
static int nphiDivisions(const float &dphi, const float &complexity, int OverrideNPhi=0)
Definition RevolutionSurfaceUtil.h:21
SoTubs
SoTubs - Inventor version of the G4Tubs Geant Geometry entity.
Definition SoTubs.h:52
SoTubs::m_children
std::unique_ptr< SoChildList > m_children
ChildList. Required whenever the class has hidden children.
Definition SoTubs.h:149
SoTubs::pOverrideNPhi
SoSFInt32 pOverrideNPhi
Override number of phi subdivision used for rendering shape (i.e.
Definition SoTubs.h:83
SoTubs::getChildren
virtual SoChildList * getChildren() const
GetChildList, required whenever the class has hidden children.
Definition SoTubs.cxx:349
SoTubs::computeBBox
virtual void computeBBox(SoAction *action, SbBox3f &box, SbVec3f &center)
compute bounding Box, required
Definition SoTubs.cxx:355
SoTubs::drawEdgeLines
SoSFBool drawEdgeLines
Definition SoTubs.h:89
SoTubs::pDz
SoSFFloat pDz
Half-length in Z.
Definition SoTubs.h:70
SoTubs::clearAlternateRep
virtual void clearAlternateRep()
We better be able to clear it, too!
Definition SoTubs.cxx:568
SoTubs::alternateRep
SoSFNode alternateRep
Alternate rep - required.
Definition SoTubs.h:87
SoTubs::generatePrimitives
virtual void generatePrimitives(SoAction *action)
Generate Primitives, required.
Definition SoTubs.cxx:72
SoTubs::pDPhi
SoSFFloat pDPhi
Delta-angle, in radians.
Definition SoTubs.h:78
SoTubs::inc
void inc(double &sinPhi, double &cosPhi, double sinDeltaPhi, double cosDeltaPhi) const
help with trigonometry. increments sines an cosines by an angle.
Definition SoTubs.h:154
SoTubs::generateAlternateRep
virtual void generateAlternateRep()
Generate AlternateRep, required.
Definition SoTubs.cxx:557
SoTubs::pSPhi
SoSFFloat pSPhi
Starting angle, in radians.
Definition SoTubs.h:74
SoTubs::initClass
static void initClass()
Class Initializer, required.
Definition SoTubs.cxx:63
SoTubs::updateChildren
void updateChildren()
Used to modify hidden children when a data field is changed.
Definition SoTubs.cxx:364
SoTubs::generateChildren
void generateChildren()
Generate Children.
Definition SoTubs.cxx:533
SoTubs::SoTubs
SoTubs()
Constructor, required.
Definition SoTubs.cxx:40
SoTubs::pRMin
SoSFFloat pRMin
Inside radius of the tube.
Definition SoTubs.h:62
SoTubs::pRMax
SoSFFloat pRMax
Outside radius of the tube.
Definition SoTubs.h:66
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