1 | // |
---|
2 | // ******************************************************************** |
---|
3 | // * License and Disclaimer * |
---|
4 | // * * |
---|
5 | // * The Geant4 software is copyright of the Copyright Holders of * |
---|
6 | // * the Geant4 Collaboration. It is provided under the terms and * |
---|
7 | // * conditions of the Geant4 Software License, included in the file * |
---|
8 | // * LICENSE and available at http://cern.ch/geant4/license . These * |
---|
9 | // * include a list of copyright holders. * |
---|
10 | // * * |
---|
11 | // * Neither the authors of this software system, nor their employing * |
---|
12 | // * institutes,nor the agencies providing financial support for this * |
---|
13 | // * work make any representation or warranty, express or implied, * |
---|
14 | // * regarding this software system or assume any liability for its * |
---|
15 | // * use. Please see the license in the file LICENSE and URL above * |
---|
16 | // * for the full disclaimer and the limitation of liability. * |
---|
17 | // * * |
---|
18 | // * This code implementation is the result of the scientific and * |
---|
19 | // * technical work of the GEANT4 collaboration. * |
---|
20 | // * By using, copying, modifying or distributing the software (or * |
---|
21 | // * any work based on the software) you agree to acknowledge its * |
---|
22 | // * use in resulting scientific publications, and indicate your * |
---|
23 | // * acceptance of all terms of the Geant4 Software license. * |
---|
24 | // ******************************************************************** |
---|
25 | // |
---|
26 | // |
---|
27 | // |
---|
28 | // $Id: SoTubs.cc,v 1.8 2006/06/29 21:23:07 gunter Exp $ |
---|
29 | // GEANT4 tag $Name: geant4-09-04-ref-00 $ |
---|
30 | // |
---|
31 | /*-----------------------------HEPVis---------------------------------------*/ |
---|
32 | /* */ |
---|
33 | /* Node: SoTubs */ |
---|
34 | /* Description: Represents the G4Tubs Geant Geometry entity */ |
---|
35 | /* Author: Joe Boudreau Nov 11 1996 */ |
---|
36 | /* */ |
---|
37 | /*--------------------------------------------------------------------------*/ |
---|
38 | |
---|
39 | #ifdef G4VIS_BUILD_OI_DRIVER |
---|
40 | |
---|
41 | // this : |
---|
42 | #include "HEPVis/nodes/SoTubs.h" |
---|
43 | |
---|
44 | #include <assert.h> |
---|
45 | #include <cmath> |
---|
46 | |
---|
47 | #include <Inventor/SbBox.h> |
---|
48 | #include <Inventor/actions/SoGLRenderAction.h> |
---|
49 | #include <Inventor/fields/SoSFFloat.h> |
---|
50 | #include <Inventor/misc/SoChildList.h> |
---|
51 | #include <Inventor/nodes/SoSeparator.h> |
---|
52 | #include <Inventor/nodes/SoIndexedFaceSet.h> |
---|
53 | #include <Inventor/nodes/SoNormal.h> |
---|
54 | #include <Inventor/nodes/SoCoordinate3.h> |
---|
55 | #include <Inventor/nodes/SoNormalBinding.h> |
---|
56 | #include <Inventor/SoPrimitiveVertex.h> |
---|
57 | #include <Inventor/elements/SoTextureCoordinateElement.h> |
---|
58 | |
---|
59 | #include "HEPVis/SbMath.h" |
---|
60 | |
---|
61 | // This statement is required |
---|
62 | SO_NODE_SOURCE(SoTubs) |
---|
63 | |
---|
64 | // Constructor |
---|
65 | SoTubs::SoTubs() { |
---|
66 | |
---|
67 | |
---|
68 | // This statement is required |
---|
69 | SO_NODE_CONSTRUCTOR(SoTubs); |
---|
70 | |
---|
71 | // Data fields are initialized like this: |
---|
72 | SO_NODE_ADD_FIELD(pRMin, (0)); |
---|
73 | SO_NODE_ADD_FIELD(pRMax, (1)); |
---|
74 | SO_NODE_ADD_FIELD(pDz, (10)); |
---|
75 | SO_NODE_ADD_FIELD(pSPhi, (0)); |
---|
76 | SO_NODE_ADD_FIELD(pDPhi, ((float)(2*M_PI))); |
---|
77 | SO_NODE_ADD_FIELD(alternateRep, (NULL)); |
---|
78 | children = new SoChildList(this); |
---|
79 | } |
---|
80 | |
---|
81 | // Destructor |
---|
82 | SoTubs::~SoTubs() { |
---|
83 | delete children; |
---|
84 | } |
---|
85 | |
---|
86 | |
---|
87 | // initClass |
---|
88 | void SoTubs::initClass(){ |
---|
89 | // This statement is required. |
---|
90 | SO_NODE_INIT_CLASS(SoTubs,SoShape,"Shape"); |
---|
91 | } |
---|
92 | |
---|
93 | // generatePrimitives |
---|
94 | void SoTubs::generatePrimitives(SoAction *action) { |
---|
95 | // This variable is used to store each vertex |
---|
96 | SoPrimitiveVertex pv; |
---|
97 | |
---|
98 | // Access the stat from the action |
---|
99 | SoState *state = action->getState(); |
---|
100 | |
---|
101 | // See if we have to use a texture coordinate function, |
---|
102 | // rather than generating explicit texture coordinates. |
---|
103 | SbBool useTexFunction= |
---|
104 | (SoTextureCoordinateElement::getType(state) == |
---|
105 | SoTextureCoordinateElement::FUNCTION); |
---|
106 | |
---|
107 | // If we need to generate texture coordinates with a function, |
---|
108 | // we'll need an SoGLTextureCoordinateElement. Otherwise, we'll |
---|
109 | // set up the coordinates directly. |
---|
110 | const SoTextureCoordinateElement* tce = NULL; |
---|
111 | SbVec4f texCoord; |
---|
112 | if (useTexFunction) { |
---|
113 | tce = SoTextureCoordinateElement::getInstance(state); |
---|
114 | } |
---|
115 | else { |
---|
116 | texCoord[2] = 0.0; |
---|
117 | texCoord[3] = 1.0; |
---|
118 | } |
---|
119 | SbVec3f point, normal; |
---|
120 | |
---|
121 | |
---|
122 | /////////////////////////////////////////////////////// |
---|
123 | //----------------------------------------------------- |
---|
124 | #define GEN_VERTEX(pv,x,y,z,s,t,nx,ny,nz) \ |
---|
125 | point.setValue((float)(x),(float)(y),(float)(z)); \ |
---|
126 | normal.setValue((float)(nx),(float)(ny),(float)(nz)); \ |
---|
127 | if (useTexFunction) { \ |
---|
128 | texCoord=tce->get(point,normal); \ |
---|
129 | } else { \ |
---|
130 | texCoord[0]=(float)(s); \ |
---|
131 | texCoord[1]=(float)(t); \ |
---|
132 | } \ |
---|
133 | pv.setPoint(point); \ |
---|
134 | pv.setNormal(normal); \ |
---|
135 | pv.setTextureCoords(texCoord); \ |
---|
136 | shapeVertex(&pv); |
---|
137 | //----------------------------------------------------- |
---|
138 | /////////////////////////////////////////////////////// |
---|
139 | |
---|
140 | int NPHI = (int)(2+22*std::fabs(pDPhi.getValue()/(2.0*M_PI))); |
---|
141 | double deltaPhi = pDPhi.getValue()/NPHI, phi0 = pSPhi.getValue(),phi1=phi0+pDPhi.getValue(); |
---|
142 | double rMax=pRMax.getValue(),rMin=pRMin.getValue(); |
---|
143 | double zMax=pDz.getValue(),zMin=-zMax; |
---|
144 | double cosPhi0=std::cos(phi0), sinPhi0=std::sin(phi0); |
---|
145 | double cosPhi1=std::cos(phi1), sinPhi1=std::sin(phi1); |
---|
146 | double cosDeltaPhi=std::cos(deltaPhi),sinDeltaPhi=std::sin(deltaPhi); |
---|
147 | // |
---|
148 | // The outer surface! |
---|
149 | // |
---|
150 | int i; |
---|
151 | double sinPhi,cosPhi; |
---|
152 | beginShape(action,TRIANGLE_STRIP); |
---|
153 | sinPhi=sinPhi0; |
---|
154 | cosPhi=cosPhi0; |
---|
155 | for (i = 0; i<=NPHI; i++) { |
---|
156 | GEN_VERTEX(pv,rMax*cosPhi,rMax*sinPhi,zMax,0.0,0.0,cosPhi,sinPhi,0); |
---|
157 | GEN_VERTEX(pv,rMax*cosPhi,rMax*sinPhi,zMin,1.0,1.0,cosPhi,sinPhi,0); |
---|
158 | inc(sinPhi, cosPhi, sinDeltaPhi, cosDeltaPhi); |
---|
159 | } |
---|
160 | endShape(); |
---|
161 | // |
---|
162 | // The inner surface! |
---|
163 | // |
---|
164 | if(rMin!=0.F) { |
---|
165 | beginShape(action,TRIANGLE_STRIP); |
---|
166 | sinPhi=sinPhi0; |
---|
167 | cosPhi=cosPhi0; |
---|
168 | for (i = 0; i<=NPHI; i++) { |
---|
169 | GEN_VERTEX(pv,rMin*cosPhi,rMin*sinPhi,zMax,0.0,0.0,-cosPhi,-sinPhi,0); |
---|
170 | GEN_VERTEX(pv,rMin*cosPhi,rMin*sinPhi,zMin,1.0,1.0,-cosPhi,-sinPhi,0); |
---|
171 | inc(sinPhi, cosPhi, sinDeltaPhi, cosDeltaPhi); |
---|
172 | } |
---|
173 | endShape(); |
---|
174 | } |
---|
175 | if (std::fabs(deltaPhi)<2.0*M_PI) { |
---|
176 | // |
---|
177 | // The end |
---|
178 | // |
---|
179 | beginShape(action,TRIANGLE_STRIP); |
---|
180 | sinPhi=sinPhi0; |
---|
181 | cosPhi=cosPhi0; |
---|
182 | GEN_VERTEX(pv,rMax*cosPhi,rMax*sinPhi,zMax,0.0,0.0,sinPhi,-cosPhi,0); |
---|
183 | GEN_VERTEX(pv,rMax*cosPhi,rMax*sinPhi,zMin,1.0,1.0,sinPhi,-cosPhi,0); |
---|
184 | GEN_VERTEX(pv,rMin*cosPhi,rMin*sinPhi,zMax,1.0,0.0,sinPhi,-cosPhi,0); |
---|
185 | GEN_VERTEX(pv,rMin*cosPhi,rMin*sinPhi,zMin,0.0,1.0,sinPhi,-cosPhi,0); |
---|
186 | endShape(); |
---|
187 | // |
---|
188 | // The other end |
---|
189 | // |
---|
190 | beginShape(action,TRIANGLE_STRIP); |
---|
191 | sinPhi=sinPhi1; |
---|
192 | cosPhi=cosPhi1; |
---|
193 | GEN_VERTEX(pv,rMax*cosPhi,rMax*sinPhi, zMax,0.0,0.0,-sinPhi,+cosPhi,0); |
---|
194 | GEN_VERTEX(pv,rMax*cosPhi,rMax*sinPhi, zMin,1.0,1.0,-sinPhi,+cosPhi,0); |
---|
195 | GEN_VERTEX(pv,rMin*cosPhi,rMin*sinPhi, zMax,1.0,0.0,-sinPhi,+cosPhi,0); |
---|
196 | GEN_VERTEX(pv,rMin*cosPhi,rMin*sinPhi, zMin,0.0,1.0,-sinPhi,+cosPhi,0); |
---|
197 | endShape(); |
---|
198 | } |
---|
199 | // |
---|
200 | // The outer surface at z=+PDZ |
---|
201 | // |
---|
202 | if(rMin==0.F) { |
---|
203 | beginShape(action,TRIANGLE_FAN); |
---|
204 | sinPhi=sinPhi0; |
---|
205 | cosPhi=cosPhi0; |
---|
206 | GEN_VERTEX(pv,0,0,zMax,0.0,0.0,0,0,1); |
---|
207 | for (i = 0; i<=NPHI; i++) { |
---|
208 | GEN_VERTEX(pv,rMax*cosPhi,rMax*sinPhi,zMax,1.0,1.0,0,0,1); |
---|
209 | inc(sinPhi, cosPhi, sinDeltaPhi, cosDeltaPhi); |
---|
210 | } |
---|
211 | endShape(); |
---|
212 | // |
---|
213 | // The outer surface at z=-PDZ |
---|
214 | // |
---|
215 | beginShape(action,TRIANGLE_FAN); |
---|
216 | sinPhi=sinPhi0; |
---|
217 | cosPhi=cosPhi0; |
---|
218 | GEN_VERTEX(pv,0,0,zMin,0.0,0.0,0,0,-1); |
---|
219 | for (i = 0; i<=NPHI; i++) { |
---|
220 | GEN_VERTEX(pv,rMax*cosPhi,rMax*sinPhi,zMin,1.0,1.0,0,0,-1); |
---|
221 | inc(sinPhi, cosPhi, sinDeltaPhi, cosDeltaPhi); |
---|
222 | } |
---|
223 | endShape(); |
---|
224 | } else { |
---|
225 | beginShape(action,TRIANGLE_STRIP); |
---|
226 | sinPhi=sinPhi0; |
---|
227 | cosPhi=cosPhi0; |
---|
228 | for (i = 0; i<=NPHI; i++) { |
---|
229 | GEN_VERTEX(pv,rMin*cosPhi,rMin*sinPhi,zMax,0.0,0.0,0,0,1); |
---|
230 | GEN_VERTEX(pv,rMax*cosPhi,rMax*sinPhi,zMax,1.0,1.0,0,0,1); |
---|
231 | inc(sinPhi, cosPhi, sinDeltaPhi, cosDeltaPhi); |
---|
232 | } |
---|
233 | endShape(); |
---|
234 | // |
---|
235 | // The outer surface at z=-PDZ |
---|
236 | // |
---|
237 | beginShape(action,TRIANGLE_STRIP); |
---|
238 | sinPhi=sinPhi0; |
---|
239 | cosPhi=cosPhi0; |
---|
240 | for (i = 0; i<=NPHI; i++) { |
---|
241 | GEN_VERTEX(pv,rMin*cosPhi,rMin*sinPhi,zMin,0.0,0.0,0,0,-1); |
---|
242 | GEN_VERTEX(pv,rMax*cosPhi,rMax*sinPhi,zMin,1.0,1.0,0,0,-1); |
---|
243 | inc(sinPhi, cosPhi, sinDeltaPhi, cosDeltaPhi); |
---|
244 | } |
---|
245 | endShape(); |
---|
246 | } |
---|
247 | } |
---|
248 | |
---|
249 | // getChildren |
---|
250 | SoChildList *SoTubs::getChildren() const { |
---|
251 | return children; |
---|
252 | } |
---|
253 | |
---|
254 | |
---|
255 | // computeBBox |
---|
256 | void SoTubs::computeBBox(SoAction *, SbBox3f &box, SbVec3f ¢er ){ |
---|
257 | SbVec3f vmin(-pRMax.getValue(),-pRMax.getValue(),-pDz.getValue()), |
---|
258 | vmax( pRMax.getValue(), pRMax.getValue(), pDz.getValue()); |
---|
259 | center.setValue(0,0,0); |
---|
260 | box.setBounds(vmin,vmax); |
---|
261 | } |
---|
262 | |
---|
263 | |
---|
264 | // updateChildren |
---|
265 | void SoTubs::updateChildren() { |
---|
266 | |
---|
267 | // Redraw the G4Tubs.... |
---|
268 | |
---|
269 | assert(children->getLength()==1); |
---|
270 | SoSeparator *sep = (SoSeparator *) ( *children)[0]; |
---|
271 | SoCoordinate3 *theCoordinates = (SoCoordinate3 *) ( sep->getChild(0)); |
---|
272 | SoNormal *theNormals = (SoNormal *) ( sep->getChild(1)); |
---|
273 | SoNormalBinding *theNormalBinding = (SoNormalBinding *) ( sep->getChild(2)); |
---|
274 | SoIndexedFaceSet *theFaceSet = (SoIndexedFaceSet *) ( sep->getChild(3)); |
---|
275 | |
---|
276 | |
---|
277 | const int NPHI=24, NPOINTS=2*(2*NPHI+2), NFACES=4*NPHI+2, NINDICES = NFACES*5; |
---|
278 | float points[NPOINTS][3],normals[NFACES][3]; |
---|
279 | #ifdef INVENTOR2_0 |
---|
280 | static long indices[NINDICES]; |
---|
281 | #else |
---|
282 | static int32_t indices[NINDICES]; |
---|
283 | #endif |
---|
284 | |
---|
285 | static int init=0; |
---|
286 | double phi, pp, DeltaPhi; |
---|
287 | |
---|
288 | // Indices need to be generated once! This is here to keep it close to the point |
---|
289 | // generation, since otherwise it will be confusing. |
---|
290 | |
---|
291 | int i; |
---|
292 | if (!init) { |
---|
293 | init = 1; |
---|
294 | // Outer face |
---|
295 | for (i = 0; i< NPHI; i++) { |
---|
296 | // 0 1 3 2; |
---|
297 | indices[5*i+0] = 2*i+0; |
---|
298 | indices[5*i+1] = 2*i+1; |
---|
299 | indices[5*i+2] = 2*i+3; |
---|
300 | indices[5*i+3] = 2*i+2; |
---|
301 | indices[5*i+4] = SO_END_FACE_INDEX; |
---|
302 | } |
---|
303 | // the inner face |
---|
304 | for (i=0;i<NPHI;i++) { |
---|
305 | indices[5*1*NPHI + 5*i+0] = 2*NPHI+2 + 2*i+0; |
---|
306 | indices[5*1*NPHI + 5*i+1] = 2*NPHI+2 + 2*i+1; |
---|
307 | indices[5*1*NPHI + 5*i+2] = 2*NPHI+2 + 2*i+3; |
---|
308 | indices[5*1*NPHI + 5*i+3] = 2*NPHI+2 + 2*i+2; |
---|
309 | indices[5*1*NPHI + 5*i+4] = SO_END_FACE_INDEX; |
---|
310 | } |
---|
311 | // the top side |
---|
312 | for (i=0;i<NPHI;i++) { |
---|
313 | indices[5*2*NPHI + 5*i+0] = 2*i+0; |
---|
314 | indices[5*2*NPHI + 5*i+1] = 2*i+2; |
---|
315 | indices[5*2*NPHI + 5*i+2] = NPOINTS - (2*i+4); |
---|
316 | indices[5*2*NPHI + 5*i+3] = NPOINTS - (2*i+2); |
---|
317 | indices[5*2*NPHI + 5*i+4] = SO_END_FACE_INDEX; |
---|
318 | } |
---|
319 | // the bottom side |
---|
320 | for (i=0;i<NPHI;i++) { |
---|
321 | indices[5*3*NPHI + 5*i+0] = 2*i+1; |
---|
322 | indices[5*3*NPHI + 5*i+1] = NPOINTS - (2*i+1); |
---|
323 | indices[5*3*NPHI + 5*i+2] = NPOINTS - (2*i+3); |
---|
324 | indices[5*3*NPHI + 5*i+3] = 2*i+3; |
---|
325 | indices[5*3*NPHI + 5*i+4] = SO_END_FACE_INDEX; |
---|
326 | } |
---|
327 | // the odd side |
---|
328 | indices[5*4*NPHI +0] = 2*NPHI; |
---|
329 | indices[5*4*NPHI +1] = 2*NPHI+1; |
---|
330 | indices[5*4*NPHI +2] = 2*NPHI+3; |
---|
331 | indices[5*4*NPHI +3] = 2*NPHI+2; |
---|
332 | indices[5*4*NPHI +4] = SO_END_FACE_INDEX; |
---|
333 | // aother odd side |
---|
334 | indices[5*4*NPHI +5 +0] = 0; |
---|
335 | indices[5*4*NPHI +5 +1] = NPOINTS-2; |
---|
336 | indices[5*4*NPHI +5 +2] = NPOINTS-1; |
---|
337 | indices[5*4*NPHI +5 +3] = 1; |
---|
338 | indices[5*4*NPHI +5 +4] = SO_END_FACE_INDEX; |
---|
339 | } |
---|
340 | // Points need to be generated each time: |
---|
341 | if (pDPhi.getValue()<2*M_PI) { |
---|
342 | // the odd side |
---|
343 | indices[5*4*NPHI +0] = 2*NPHI; |
---|
344 | indices[5*4*NPHI +1] = 2*NPHI+1; |
---|
345 | indices[5*4*NPHI +2] = 2*NPHI+3; |
---|
346 | indices[5*4*NPHI +3] = 2*NPHI+2; |
---|
347 | indices[5*4*NPHI +4] = SO_END_FACE_INDEX; |
---|
348 | // aother odd side |
---|
349 | indices[5*4*NPHI +5 +0] = 0; |
---|
350 | indices[5*4*NPHI +5 +1] = NPOINTS-2; |
---|
351 | indices[5*4*NPHI +5 +2] = NPOINTS-1; |
---|
352 | indices[5*4*NPHI +5 +3] = 1; |
---|
353 | indices[5*4*NPHI +5 +4] = SO_END_FACE_INDEX; |
---|
354 | } |
---|
355 | else { |
---|
356 | // the odd side |
---|
357 | indices[5*4*NPHI +0] = SO_END_FACE_INDEX; |
---|
358 | indices[5*4*NPHI +1] = SO_END_FACE_INDEX; |
---|
359 | indices[5*4*NPHI +2] = SO_END_FACE_INDEX; |
---|
360 | indices[5*4*NPHI +3] = SO_END_FACE_INDEX; |
---|
361 | indices[5*4*NPHI +4] = SO_END_FACE_INDEX; |
---|
362 | // aother odd side |
---|
363 | indices[5*4*NPHI +5 +0] = SO_END_FACE_INDEX; |
---|
364 | indices[5*4*NPHI +5 +1] = SO_END_FACE_INDEX; |
---|
365 | indices[5*4*NPHI +5 +2] = SO_END_FACE_INDEX; |
---|
366 | indices[5*4*NPHI +5 +3] = SO_END_FACE_INDEX; |
---|
367 | indices[5*4*NPHI +5 +4] = SO_END_FACE_INDEX; |
---|
368 | } |
---|
369 | // The outer surface |
---|
370 | DeltaPhi = pDPhi.getValue()/NPHI, phi = pSPhi.getValue(); |
---|
371 | for (i = 0; i<=NPHI; i++) { |
---|
372 | points[2*i+0][0] = pRMax.getValue()*FCOS(phi); |
---|
373 | points[2*i+0][1]= pRMax.getValue()*FSIN(phi); |
---|
374 | points[2*i+0][2] = +pDz.getValue(); |
---|
375 | |
---|
376 | points[2*i+1][0] = pRMax.getValue()*FCOS(phi); |
---|
377 | points[2*i+1][1]= pRMax.getValue()*FSIN(phi); |
---|
378 | points[2*i+1][2] = -pDz.getValue(); |
---|
379 | |
---|
380 | pp = phi+DeltaPhi/2.0; |
---|
381 | if (i!=NPHI) { |
---|
382 | normals[i][0] = FCOS(pp); |
---|
383 | normals[i][1] = FSIN(pp); |
---|
384 | normals[i][2] = 0; |
---|
385 | } |
---|
386 | phi+=DeltaPhi; |
---|
387 | } |
---|
388 | // The inner surface |
---|
389 | phi = pSPhi.getValue() + pDPhi.getValue(); |
---|
390 | for (i = 0; i<=NPHI; i++) { |
---|
391 | points[2*NPHI+2+2*i+0][0] = pRMin.getValue()*FCOS(phi); |
---|
392 | points[2*NPHI+2+2*i+0][1] = pRMin.getValue()*FSIN(phi); |
---|
393 | points[2*NPHI+2+2*i+0][2] = +pDz.getValue(); |
---|
394 | points[2*NPHI+2+2*i+1][0] = pRMin.getValue()*FCOS(phi); |
---|
395 | points[2*NPHI+2+2*i+1][1] = pRMin.getValue()*FSIN(phi); |
---|
396 | points[2*NPHI+2+2*i+1][2] = -pDz.getValue(); |
---|
397 | pp = phi-DeltaPhi/2.0; |
---|
398 | if (i!=NPHI) { |
---|
399 | normals[NPHI+i][0] = -FCOS(pp); |
---|
400 | normals[NPHI+i][1] = -FSIN(pp); |
---|
401 | normals[NPHI+i][2] = 0; |
---|
402 | } |
---|
403 | phi-=DeltaPhi; |
---|
404 | } |
---|
405 | // The top side |
---|
406 | for (i=0;i<NPHI;i++) { |
---|
407 | normals[2*NPHI+i][0]=normals[2*NPHI+i][1]=0; |
---|
408 | normals[2*NPHI+i][2]= 1.0; |
---|
409 | } |
---|
410 | // The bottom side |
---|
411 | for (i=0;i<NPHI;i++) { |
---|
412 | normals[3*NPHI+i][0]=normals[3*NPHI+i][1]=0; |
---|
413 | normals[3*NPHI+i][2]= -1.0; |
---|
414 | } |
---|
415 | // The odd side |
---|
416 | phi = pSPhi.getValue(); |
---|
417 | normals[4*NPHI+0][0]= FSIN(phi); |
---|
418 | normals[4*NPHI+0][1]= -FCOS(phi); |
---|
419 | normals[4*NPHI+0][2]=0; |
---|
420 | |
---|
421 | // Another odd side |
---|
422 | phi = pSPhi.getValue()+pDPhi.getValue(); |
---|
423 | normals[4*NPHI+1][0]= -FSIN(phi); |
---|
424 | normals[4*NPHI+1][1]= +FCOS(phi); |
---|
425 | normals[4*NPHI+1][2]=0; |
---|
426 | |
---|
427 | for (int np=0;np<NPOINTS; np++) theCoordinates->point.set1Value(np,points[np][0],points[np][1],points[np][2]); |
---|
428 | for (int ni=0;ni<NINDICES;ni++) theFaceSet->coordIndex.set1Value(ni,indices[ni]); |
---|
429 | for (int nf=0;nf<NFACES;nf++) theNormals->vector.set1Value(nf,normals[nf][0],normals[nf][1],normals[nf][2]); |
---|
430 | theNormalBinding->value=SoNormalBinding::PER_FACE; |
---|
431 | } |
---|
432 | |
---|
433 | // generateChildren |
---|
434 | void SoTubs::generateChildren() { |
---|
435 | |
---|
436 | // This routines creates one SoSeparator, one SoCoordinate3, and |
---|
437 | // one SoLineSet, and puts it in the child list. This is done only |
---|
438 | // once, whereas redrawing the position of the coordinates occurs each |
---|
439 | // time an update is necessary, in the updateChildren routine. |
---|
440 | |
---|
441 | assert(children->getLength() ==0); |
---|
442 | SoSeparator *sep = new SoSeparator(); |
---|
443 | SoCoordinate3 *theCoordinates = new SoCoordinate3(); |
---|
444 | SoNormal *theNormals = new SoNormal(); |
---|
445 | SoNormalBinding *theNormalBinding = new SoNormalBinding(); |
---|
446 | SoIndexedFaceSet *theFaceSet = new SoIndexedFaceSet(); |
---|
447 | // |
---|
448 | // This line costs some in render quality! but gives speed. |
---|
449 | // |
---|
450 | sep->addChild(theCoordinates); |
---|
451 | sep->addChild(theNormals); |
---|
452 | sep->addChild(theNormalBinding); |
---|
453 | sep->addChild(theFaceSet); |
---|
454 | children->append(sep); |
---|
455 | } |
---|
456 | |
---|
457 | // generateAlternateRep |
---|
458 | void SoTubs::generateAlternateRep() { |
---|
459 | |
---|
460 | // This routine sets the alternate representation to the child |
---|
461 | // list of this mode. |
---|
462 | |
---|
463 | if (children->getLength() == 0) generateChildren(); |
---|
464 | updateChildren(); |
---|
465 | alternateRep.setValue((SoSeparator *) ( *children)[0]); |
---|
466 | } |
---|
467 | |
---|
468 | // clearAlternateRep |
---|
469 | void SoTubs::clearAlternateRep() { |
---|
470 | alternateRep.setValue(NULL); |
---|
471 | } |
---|
472 | |
---|
473 | #endif |
---|