| Geant4 Cross Reference |
1 // 1 //
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4 // * 4 // * *
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15 // * use. Please see the license in the file << 14 // * use. *
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17 // * 15 // * *
18 // * This code implementation is the result << 16 // * This code implementation is the intellectual property of the *
19 // * technical work of the GEANT4 collaboratio << 17 // * GEANT4 collaboration. *
20 // * By using, copying, modifying or distri << 18 // * By copying, distributing or modifying the Program (or any work *
21 // * any work based on the software) you ag << 19 // * based on the Program) you indicate your acceptance of this *
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24 // ******************************************* 21 // ********************************************************************
25 // 22 //
26 // 23 //
>> 24 // $Id: G4OpenGLViewer.cc,v 1.14 2002/10/16 10:44:16 johna Exp $
>> 25 // GEANT4 tag $Name: geant4-05-01 $
27 // 26 //
28 // 27 //
29 // Andrew Walkden 27th March 1996 28 // Andrew Walkden 27th March 1996
30 // OpenGL view - opens window, hard copy, etc. 29 // OpenGL view - opens window, hard copy, etc.
31 30
32 #include "G4ios.hh" << 31 #ifdef G4VIS_BUILD_OPENGL_DRIVER
33 #include <CLHEP/Units/SystemOfUnits.h> << 32
>> 33 #include <GL/gl.h>
>> 34 #include <GL/glu.h>
>> 35
34 #include "G4OpenGLViewer.hh" 36 #include "G4OpenGLViewer.hh"
35 #include "G4OpenGLSceneHandler.hh" 37 #include "G4OpenGLSceneHandler.hh"
36 #include "G4OpenGLTransform3D.hh" 38 #include "G4OpenGLTransform3D.hh"
37 << 39 #include "G4ios.hh"
38 #include "G4gl2ps.hh" <<
39 #define GL2PS_TEXT_B TOOLS_GL2PS_TEXT_B <<
40 #define GL2PS_TEXT_BL TOOLS_GL2PS_TEXT_BL <<
41 #define GL2PS_TEXT_BR TOOLS_GL2PS_TEXT_BR <<
42 40
43 #include "G4Scene.hh" 41 #include "G4Scene.hh"
44 #include "G4VisExtent.hh" 42 #include "G4VisExtent.hh"
45 #include "G4LogicalVolume.hh" 43 #include "G4LogicalVolume.hh"
46 #include "G4VSolid.hh" 44 #include "G4VSolid.hh"
47 #include "G4Point3D.hh" 45 #include "G4Point3D.hh"
48 #include "G4Normal3D.hh" 46 #include "G4Normal3D.hh"
49 #include "G4Plane3D.hh" 47 #include "G4Plane3D.hh"
50 #include "G4AttHolder.hh" <<
51 #include "G4AttCheck.hh" <<
52 #include "G4Text.hh" <<
53 <<
54 #include <sstream> <<
55 #include <string> <<
56 #include <iomanip> <<
57 48
58 G4OpenGLViewer::G4OpenGLViewer (G4OpenGLSceneH 49 G4OpenGLViewer::G4OpenGLViewer (G4OpenGLSceneHandler& scene):
59 G4VViewer (scene, -1), 50 G4VViewer (scene, -1),
60 fPrintColour (true), << 51 white_background (false),
61 fVectoredPs (true), << 52 transparency_enabled (false),
62 fOpenGLSceneHandler(scene), <<
63 background (G4Colour(0.,0.,0.)), <<
64 transparency_enabled (true), <<
65 antialiasing_enabled (false), 53 antialiasing_enabled (false),
66 haloing_enabled (false), << 54 haloing_enabled (false)
67 fRot_sens(1.), <<
68 fPan_sens(0.01), <<
69 fWinSize_x(0), <<
70 fWinSize_y(0), <<
71 fDefaultExportImageFormat("pdf"), <<
72 fExportImageFormat("pdf"), <<
73 fExportFilenameIndex(0), <<
74 fPrintSizeX(-1), <<
75 fPrintSizeY(-1), <<
76 fPointSize (0), <<
77 fDefaultExportFilename("G4OpenGL"), <<
78 fSizeHasChanged(0), <<
79 fGl2psDefaultLineWith(1), <<
80 fGl2psDefaultPointSize(2), <<
81 fGlViewInitialized(false), <<
82 fIsGettingPickInfos(false) <<
83 { 55 {
84 // Make changes to view parameters for OpenG 56 // Make changes to view parameters for OpenGL...
85 fVP.SetAutoRefresh(true); 57 fVP.SetAutoRefresh(true);
86 fDefaultVP.SetAutoRefresh(true); 58 fDefaultVP.SetAutoRefresh(true);
87 fGL2PSAction = new G4gl2ps(); <<
88 tools_gl2ps_gl_funcs_t _funcs = { <<
89 (tools_glIsEnabled_func)glIsEnabled, <<
90 (tools_glBegin_func)glBegin, <<
91 (tools_glEnd_func)glEnd, <<
92 (tools_glGetFloatv_func)glGetFloatv, <<
93 (tools_glVertex3f_func)glVertex3f, <<
94 (tools_glGetBooleanv_func)glGetBooleanv, <<
95 (tools_glGetIntegerv_func)glGetIntegerv, <<
96 (tools_glRenderMode_func)glRenderMode, <<
97 (tools_glFeedbackBuffer_func)glFeedbackBuf <<
98 (tools_glPassThrough_func)glPassThrough <<
99 }; <<
100 fGL2PSAction->setOpenGLFunctions(&_funcs); <<
101 <<
102 // add supported export image format <<
103 addExportImageFormat("eps"); <<
104 addExportImageFormat("ps"); <<
105 addExportImageFormat("pdf"); <<
106 addExportImageFormat("svg"); <<
107 59
108 // Change the default name <<
109 fExportFilename += fDefaultExportFilename + <<
110 <<
111 // glClearColor (0.0, 0.0, 0.0, 0.0); 60 // glClearColor (0.0, 0.0, 0.0, 0.0);
112 // glClearDepth (1.0); 61 // glClearDepth (1.0);
113 // glDisable (GL_BLEND); 62 // glDisable (GL_BLEND);
114 // glDisable (GL_LINE_SMOOTH); 63 // glDisable (GL_LINE_SMOOTH);
115 // glDisable (GL_POLYGON_SMOOTH); 64 // glDisable (GL_POLYGON_SMOOTH);
116 65
117 } 66 }
118 67
119 G4OpenGLViewer::~G4OpenGLViewer () << 68 G4OpenGLViewer::~G4OpenGLViewer () {}
120 { <<
121 delete fGL2PSAction; <<
122 } <<
123 69
124 void G4OpenGLViewer::InitializeGLView () 70 void G4OpenGLViewer::InitializeGLView ()
125 { 71 {
126 if (fWinSize_x == 0) { <<
127 fWinSize_x = fVP.GetWindowSizeHintX(); <<
128 } <<
129 if (fWinSize_y == 0) { <<
130 fWinSize_y = fVP.GetWindowSizeHintY(); <<
131 } <<
132 <<
133 glClearColor (0.0, 0.0, 0.0, 0.0); 72 glClearColor (0.0, 0.0, 0.0, 0.0);
134 glClearDepth (1.0); 73 glClearDepth (1.0);
>> 74 glDisable (GL_BLEND);
135 glDisable (GL_LINE_SMOOTH); 75 glDisable (GL_LINE_SMOOTH);
136 glDisable (GL_POLYGON_SMOOTH); 76 glDisable (GL_POLYGON_SMOOTH);
137 << 77 }
138 // clear the buffers and window? <<
139 ClearView (); <<
140 FinishView (); <<
141 <<
142 glDepthFunc (GL_LEQUAL); <<
143 glDepthMask (GL_TRUE); <<
144 <<
145 glEnable (GL_BLEND); <<
146 glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ <<
147 <<
148 } <<
149 78
150 void G4OpenGLViewer::ClearView () { 79 void G4OpenGLViewer::ClearView () {
151 ClearViewWithoutFlush(); << 80 //Below line does not compile with Mesa includes.
152 << 81 //glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
153 if(!isFramebufferReady()) { <<
154 return; <<
155 } <<
156 <<
157 glFlush(); <<
158 } <<
159 <<
160 <<
161 void G4OpenGLViewer::ClearViewWithoutFlush () <<
162 // Ready for clear ? <<
163 // See : http://lists.apple.com/archives/mac <<
164 if(!isFramebufferReady()) { <<
165 return; <<
166 } <<
167 <<
168 glClearColor (background.GetRed(), <<
169 background.GetGreen(), <<
170 background.GetBlue(), <<
171 1.); <<
172 glClearDepth (1.0); <<
173 //Below line does not compile with Mesa incl <<
174 //glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BU <<
175 glClear (GL_COLOR_BUFFER_BIT); 82 glClear (GL_COLOR_BUFFER_BIT);
176 glClear (GL_DEPTH_BUFFER_BIT); 83 glClear (GL_DEPTH_BUFFER_BIT);
177 glClear (GL_STENCIL_BUFFER_BIT); 84 glClear (GL_STENCIL_BUFFER_BIT);
>> 85 glFlush ();
178 } 86 }
179 87
180 <<
181 void G4OpenGLViewer::ResizeWindow(unsigned int <<
182 if ((fWinSize_x != aWidth) || (fWinSize_y != <<
183 fWinSize_x = aWidth; <<
184 fWinSize_y = aHeight; <<
185 fSizeHasChanged = true; <<
186 } else { <<
187 fSizeHasChanged = false; <<
188 } <<
189 } <<
190 <<
191 /** <<
192 * Set the viewport of the scene <<
193 * MAXIMUM SIZE is : <<
194 * GLint dims[2]; <<
195 * glGetIntegerv(GL_MAX_VIEWPORT_DIMS, dims); <<
196 */ <<
197 void G4OpenGLViewer::ResizeGLView() <<
198 { <<
199 // Check size <<
200 GLint dims[2]; <<
201 dims[0] = 0; <<
202 dims[1] = 0; <<
203 <<
204 glGetIntegerv(GL_MAX_VIEWPORT_DIMS, dims); <<
205 <<
206 if ((dims[0] !=0 ) && (dims[1] !=0)) { <<
207 <<
208 if (fWinSize_x > (unsigned)dims[0]) { <<
209 G4cerr << "Try to resize view greater th <<
210 fWinSize_x = dims[0]; <<
211 } <<
212 if (fWinSize_y > (unsigned)dims[1]) { <<
213 G4cerr << "Try to resize view greater th <<
214 fWinSize_y = dims[1]; <<
215 } <<
216 } <<
217 <<
218 glViewport(0, 0, fWinSize_x,fWinSize_y); <<
219 <<
220 <<
221 } <<
222 <<
223 <<
224 void G4OpenGLViewer::SetView () { 88 void G4OpenGLViewer::SetView () {
225 // if getting pick infos, should not resize <<
226 if (fIsGettingPickInfos) return; <<
227 89
228 if (!fSceneHandler.GetScene()) { <<
229 return; <<
230 } <<
231 // Calculates view representation based on e 90 // Calculates view representation based on extent of object being
232 // viewed and (initial) viewpoint. (Note: i 91 // viewed and (initial) viewpoint. (Note: it can change later due
233 // to user interaction via visualization sys 92 // to user interaction via visualization system's GUI.)
234 93
235 // Lighting. 94 // Lighting.
236 GLfloat lightPosition [4]; 95 GLfloat lightPosition [4];
237 lightPosition [0] = fVP.GetActualLightpointD 96 lightPosition [0] = fVP.GetActualLightpointDirection().x();
238 lightPosition [1] = fVP.GetActualLightpointD 97 lightPosition [1] = fVP.GetActualLightpointDirection().y();
239 lightPosition [2] = fVP.GetActualLightpointD 98 lightPosition [2] = fVP.GetActualLightpointDirection().z();
240 lightPosition [3] = 0.; 99 lightPosition [3] = 0.;
241 // Light position is "true" light direction, 100 // Light position is "true" light direction, so must come after gluLookAt.
242 GLfloat ambient [] = { 0.2f, 0.2f, 0.2f, 1.f << 101 GLfloat ambient [] = { 0.2, 0.2, 0.2, 1.};
243 GLfloat diffuse [] = { 0.8f, 0.8f, 0.8f, 1.f << 102 GLfloat diffuse [] = { 0.8, 0.8, 0.8, 1.};
244 glEnable (GL_LIGHT0); 103 glEnable (GL_LIGHT0);
245 glLightfv (GL_LIGHT0, GL_AMBIENT, ambient); 104 glLightfv (GL_LIGHT0, GL_AMBIENT, ambient);
246 glLightfv (GL_LIGHT0, GL_DIFFUSE, diffuse); 105 glLightfv (GL_LIGHT0, GL_DIFFUSE, diffuse);
247 106
248 G4double ratioX = 1; <<
249 G4double ratioY = 1; <<
250 if (fWinSize_y > fWinSize_x) { <<
251 ratioX = ((G4double)fWinSize_y) / ((G4doub <<
252 } <<
253 if (fWinSize_x > fWinSize_y) { <<
254 ratioY = ((G4double)fWinSize_x) / ((G4doub <<
255 } <<
256 <<
257 // Get radius of scene, etc. 107 // Get radius of scene, etc.
258 // Note that this procedure properly takes i 108 // Note that this procedure properly takes into account zoom, dolly and pan.
259 const G4Point3D targetPoint 109 const G4Point3D targetPoint
260 = fSceneHandler.GetScene()->GetStandardTar 110 = fSceneHandler.GetScene()->GetStandardTargetPoint()
261 + fVP.GetCurrentTargetPoint (); 111 + fVP.GetCurrentTargetPoint ();
262 G4double radius = fSceneHandler.GetScene()-> 112 G4double radius = fSceneHandler.GetScene()->GetExtent().GetExtentRadius();
263 if(radius<=0.) radius = 1.; 113 if(radius<=0.) radius = 1.;
264 const G4double cameraDistance = fVP.GetCamer 114 const G4double cameraDistance = fVP.GetCameraDistance (radius);
265 const G4Point3D cameraPosition = 115 const G4Point3D cameraPosition =
266 targetPoint + cameraDistance * fVP.GetView 116 targetPoint + cameraDistance * fVP.GetViewpointDirection().unit();
267 const GLdouble pnear = fVP.GetNearDistance << 117 const GLdouble near = fVP.GetNearDistance (cameraDistance, radius);
268 const GLdouble pfar = fVP.GetFarDistance << 118 const GLdouble far = fVP.GetFarDistance (cameraDistance, near, radius);
269 const GLdouble right = fVP.GetFrontHalfHeig << 119 const GLdouble right = fVP.GetFrontHalfHeight (near, radius);
270 const GLdouble left = -right; 120 const GLdouble left = -right;
271 const GLdouble top = fVP.GetFrontHalfHeig << 121 const GLdouble bottom = left;
272 const GLdouble bottom = -top; << 122 const GLdouble top = right;
273 123
274 // FIXME <<
275 ResizeGLView(); <<
276 //SHOULD SetWindowsSizeHint()... <<
277 <<
278 glMatrixMode (GL_PROJECTION); // set up Frus 124 glMatrixMode (GL_PROJECTION); // set up Frustum.
279 glLoadIdentity(); 125 glLoadIdentity();
280 <<
281 const G4Vector3D scaleFactor = fVP.GetScaleF <<
282 glScaled(scaleFactor.x(),scaleFactor.y(),sca <<
283 126
284 if (fVP.GetFieldHalfAngle() == 0.) { 127 if (fVP.GetFieldHalfAngle() == 0.) {
285 g4GlOrtho (left, right, bottom, top, pnear << 128 glOrtho (left, right, bottom, top, near, far);
286 } 129 }
287 else { 130 else {
288 g4GlFrustum (left, right, bottom, top, pne << 131 glFrustum (left, right, bottom, top, near, far);
289 } << 132 }
290 << 133
291 glMatrixMode (GL_MODELVIEW); // apply furthe 134 glMatrixMode (GL_MODELVIEW); // apply further transformations to scene.
292 glLoadIdentity(); 135 glLoadIdentity();
293 136
294 const G4Normal3D& upVector = fVP.GetUpVector 137 const G4Normal3D& upVector = fVP.GetUpVector ();
295 G4Point3D gltarget; 138 G4Point3D gltarget;
296 if (cameraDistance > 1.e-6 * radius) { 139 if (cameraDistance > 1.e-6 * radius) {
297 gltarget = targetPoint; 140 gltarget = targetPoint;
298 } 141 }
299 else { 142 else {
300 gltarget = targetPoint - radius * fVP.GetV 143 gltarget = targetPoint - radius * fVP.GetViewpointDirection().unit();
301 } 144 }
302 145
303 const G4Point3D& pCamera = cameraPosition; 146 const G4Point3D& pCamera = cameraPosition; // An alias for brevity.
304 << 147 gluLookAt (pCamera.x(), pCamera.y(), pCamera.z(), // Viewpoint.
305 g4GluLookAt (pCamera.x(), pCamera.y(), pCa << 148 gltarget.x(), gltarget.y(), gltarget.z(), // Target point.
306 gltarget.x(), gltarget.y(), gltar << 149 upVector.x(), upVector.y(), upVector.z()); // Up vector.
307 upVector.x(), upVector.y(), upVec << 150
308 // Light position is "true" light direction, 151 // Light position is "true" light direction, so must come after gluLookAt.
309 glLightfv (GL_LIGHT0, GL_POSITION, lightPosi 152 glLightfv (GL_LIGHT0, GL_POSITION, lightPosition);
310 153
311 // The idea is to use back-to-back clipping << 154 // Clip planes.
312 // down to just a few pixels, which can make << 155 if (fVP.IsSection () ) { // pair of back to back clip planes.
313 // now, comment this out and use the generic << 156 const G4Plane3D& s = fVP.GetSectionPlane ();
314 // G4VSolid* G4OpenGLSceneHandler::CreateSec << 157 double sArray[4];
315 // { return G4VSceneHandler::CreateSectionSo << 158 sArray[0] = s.a();
316 // if (fVP.IsSection () ) { // pair of back << 159 sArray[1] = s.b();
317 // const G4Plane3D& sp = fVP.GetSectionPlan << 160 sArray[2] = s.c();
318 // double sArray[4]; << 161 sArray[3] = s.d() + radius * 1.e-05;
319 // sArray[0] = sp.a(); << 162 glClipPlane (GL_CLIP_PLANE0, sArray);
320 // sArray[1] = sp.b(); << 163 glEnable (GL_CLIP_PLANE0);
321 // sArray[2] = sp.c(); << 164 sArray[0] = -s.a();
322 // sArray[3] = sp.d() + radius * 1.e-05; << 165 sArray[1] = -s.b();
323 // glClipPlane (GL_CLIP_PLANE0, sArray); << 166 sArray[2] = -s.c();
324 // glEnable (GL_CLIP_PLANE0); << 167 sArray[3] = -s.d() + radius * 1.e-05;
325 // sArray[0] = -sp.a(); << 168 glClipPlane (GL_CLIP_PLANE1, sArray);
326 // sArray[1] = -sp.b(); << 169 glEnable (GL_CLIP_PLANE1);
327 // sArray[2] = -sp.c(); <<
328 // sArray[3] = -sp.d() + radius * 1.e-05; <<
329 // glClipPlane (GL_CLIP_PLANE1, sArray); <<
330 // glEnable (GL_CLIP_PLANE1); <<
331 // } else { <<
332 // glDisable (GL_CLIP_PLANE0); <<
333 // glDisable (GL_CLIP_PLANE1); <<
334 // } <<
335 <<
336 // What we call intersection of cutaways is <<
337 // just keep cutting. Unions are more trick <<
338 // multiple passes and this is handled in <<
339 // G4OpenGLImmediate/StoredViewer::ProcessVi <<
340 const G4Planes& cutaways = fVP.GetCutawayPla <<
341 size_t nPlanes = cutaways.size(); <<
342 if (fVP.IsCutaway() && <<
343 fVP.GetCutawayMode() == G4ViewParameters <<
344 double a[4]; <<
345 a[0] = cutaways[0].a(); <<
346 a[1] = cutaways[0].b(); <<
347 a[2] = cutaways[0].c(); <<
348 a[3] = cutaways[0].d(); <<
349 glClipPlane (GL_CLIP_PLANE2, a); <<
350 glEnable (GL_CLIP_PLANE2); <<
351 if (nPlanes > 1) { <<
352 a[0] = cutaways[1].a(); <<
353 a[1] = cutaways[1].b(); <<
354 a[2] = cutaways[1].c(); <<
355 a[3] = cutaways[1].d(); <<
356 glClipPlane (GL_CLIP_PLANE3, a); <<
357 glEnable (GL_CLIP_PLANE3); <<
358 } <<
359 if (nPlanes > 2) { <<
360 a[0] = cutaways[2].a(); <<
361 a[1] = cutaways[2].b(); <<
362 a[2] = cutaways[2].c(); <<
363 a[3] = cutaways[2].d(); <<
364 glClipPlane (GL_CLIP_PLANE4, a); <<
365 glEnable (GL_CLIP_PLANE4); <<
366 } <<
367 } else { <<
368 glDisable (GL_CLIP_PLANE2); <<
369 glDisable (GL_CLIP_PLANE3); <<
370 glDisable (GL_CLIP_PLANE4); <<
371 } 170 }
372 << 171 else {
373 // Background. << 172 glDisable (GL_CLIP_PLANE0);
374 background = fVP.GetBackgroundColour (); << 173 glDisable (GL_CLIP_PLANE1);
375 << 174 }
376 } << 175
377 <<
378 <<
379 <<
380 void G4OpenGLViewer::ResetView () { <<
381 G4VViewer::ResetView(); <<
382 fRot_sens = 1; <<
383 fPan_sens = 0.01; <<
384 } 176 }
385 177
386 <<
387 void G4OpenGLViewer::HaloingFirstPass () { 178 void G4OpenGLViewer::HaloingFirstPass () {
388 179
389 //To perform haloing, first Draw all informa 180 //To perform haloing, first Draw all information to the depth buffer
390 //alone, using a chunky line width, and then 181 //alone, using a chunky line width, and then Draw all info again, to
391 //the colour buffer, setting a thinner line 182 //the colour buffer, setting a thinner line width an the depth testing
392 //function to less than or equal, so if two 183 //function to less than or equal, so if two lines cross, the one
393 //passing behind the other will not pass the 184 //passing behind the other will not pass the depth test, and so not
394 //get rendered either side of the infront li 185 //get rendered either side of the infront line for a short distance.
395 186
396 //First, disable writing to the colo(u)r buf 187 //First, disable writing to the colo(u)r buffer...
397 glColorMask (GL_FALSE, GL_FALSE, GL_FALSE, G 188 glColorMask (GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
398 189
399 //Now enable writing to the depth buffer... 190 //Now enable writing to the depth buffer...
400 glDepthMask (GL_TRUE); 191 glDepthMask (GL_TRUE);
401 glDepthFunc (GL_LESS); 192 glDepthFunc (GL_LESS);
402 glClearDepth (1.0); 193 glClearDepth (1.0);
403 194
404 //Finally, set the line width to something w 195 //Finally, set the line width to something wide...
405 ChangeLineWidth(3.0); << 196 glLineWidth (3.0);
406 197
407 } 198 }
408 199
409 void G4OpenGLViewer::HaloingSecondPass () { 200 void G4OpenGLViewer::HaloingSecondPass () {
410 201
411 //And finally, turn the colour buffer back o 202 //And finally, turn the colour buffer back on with a sesible line width...
412 glColorMask (GL_TRUE, GL_TRUE, GL_TRUE, GL_T 203 glColorMask (GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
413 glDepthFunc (GL_LEQUAL); 204 glDepthFunc (GL_LEQUAL);
414 ChangeLineWidth(1.0); << 205 glLineWidth (1.0);
415 206
416 } 207 }
417 208
418 G4String G4OpenGLViewer::Pick(GLdouble x, GLdo << 209 void G4OpenGLViewer::HLRFirstPass () {
419 { <<
420 const std::vector < G4OpenGLViewerPickMap* > <<
421 G4String txt = ""; <<
422 if (pickMap.size() == 0) { <<
423 // txt += "No hits recorded.";; <<
424 } else { <<
425 for (unsigned int a=0; a < pickMap.size(); <<
426 if (pickMap[a]->getAttributes().size() > <<
427 txt += pickMap[a]->print(); <<
428 } <<
429 } <<
430 } <<
431 return txt; <<
432 } <<
433 210
434 const std::vector < G4OpenGLViewerPickMap* > & << 211 G4cout << "First pass HLR" << G4endl;
435 { <<
436 static std::vector < G4OpenGLViewerPickMap* <<
437 for (auto pickMap: pickMapVector) { <<
438 delete pickMap; <<
439 } <<
440 pickMapVector.clear(); <<
441 <<
442 const G4int BUFSIZE = 512; <<
443 GLuint selectBuffer[BUFSIZE]; <<
444 glSelectBuffer(BUFSIZE, selectBuffer); <<
445 glRenderMode(GL_SELECT); <<
446 glInitNames(); <<
447 glPushName(0); <<
448 glMatrixMode(GL_PROJECTION); <<
449 G4double currentProjectionMatrix[16]; <<
450 glGetDoublev(GL_PROJECTION_MATRIX, currentPr <<
451 glPushMatrix(); <<
452 glLoadIdentity(); <<
453 GLint viewport[4]; <<
454 glGetIntegerv(GL_VIEWPORT, viewport); <<
455 /* G4cout <<
456 << "viewport, x,y: " <<
457 << viewport[0] << ',' << viewport[1] << ',' <<
458 << ", " << x << ',' << y <<
459 << G4endl; <<
460 */ <<
461 fIsGettingPickInfos = true; <<
462 // Define 5x5 pixel pick area <<
463 g4GluPickMatrix(x, viewport[3] - y, 5., 5., <<
464 glMultMatrixd(currentProjectionMatrix); <<
465 glMatrixMode(GL_MODELVIEW); <<
466 DrawView(); <<
467 GLint hits = glRenderMode(GL_RENDER); <<
468 fIsGettingPickInfos = false; <<
469 if (hits < 0) { <<
470 G4cout << "Too many hits. Zoom in to redu <<
471 goto restoreMatrices; <<
472 } <<
473 if (hits > 0) { <<
474 GLuint* p = selectBuffer; <<
475 for (GLint i = 0; i < hits; ++i) { <<
476 GLuint nnames = *p++; <<
477 // This bit of debug code or... <<
478 //GLuint zmin = *p++; <<
479 //GLuint zmax = *p++; <<
480 //G4cout << "Hit " << i << ": " << nname <<
481 // << "\nzmin: " << zmin << ", zma <<
482 // ...just increment the pointer <<
483 p++; <<
484 p++; <<
485 for (GLuint j = 0; j < nnames; ++j) { <<
486 GLuint name = *p++; <<
487 std::map<GLuint, G4AttHolder*>::iterator ite <<
488 fOpenGLSceneHandler.fPickMap.find(name); <<
489 if (iter != fOpenGLSceneHandler.fPickMap.end <<
490 G4AttHolder* attHolder = iter->second; <<
491 if(attHolder && attHolder->GetAttDefs().si <<
492 for (size_t iAtt = 0; <<
493 iAtt < attHolder->GetAttDefs().size(); ++ <<
494 std::ostringstream oss; <<
495 oss << G4AttCheck(attHolder->GetAttVal <<
496 attHolder->Get <<
497 G4OpenGLViewerPickMap* pickMap = <<
498 // G4cout <<
499 // << "i,j, attHolder->GetAttDefs <<
500 // << i << ',' << j <<
501 // << ", " << attHolder->GetAttDe <<
502 // << G4endl; <<
503 // G4cout << "G4OpenGLViewer::Get <<
504 pickMap->addAttributes(oss.str() <<
505 pickMap->setHitNumber(i); <<
506 pickMap->setSubHitNumber(j); <<
507 pickMap->setPickName(name); <<
508 pickMapVector.push_back(pickMap) <<
509 } <<
510 } <<
511 } <<
512 } <<
513 } <<
514 } <<
515 <<
516 restoreMatrices: <<
517 glMatrixMode(GL_PROJECTION); <<
518 glPopMatrix(); <<
519 glMatrixMode(GL_MODELVIEW); <<
520 <<
521 return pickMapVector; <<
522 } <<
523 <<
524 GLubyte* G4OpenGLViewer::grabPixels <<
525 (int inColor, unsigned int width, unsigned int <<
526 <<
527 GLubyte* buffer; <<
528 GLint swapbytes, lsbfirst, rowlength; <<
529 GLint skiprows, skippixels, alignment; <<
530 GLenum format; <<
531 int size; <<
532 <<
533 if (inColor) { <<
534 format = GL_RGB; <<
535 size = width*height*3; <<
536 } else { <<
537 format = GL_LUMINANCE; <<
538 size = width*height*1; <<
539 } <<
540 <<
541 buffer = new GLubyte[size]; <<
542 if (buffer == NULL) <<
543 return NULL; <<
544 <<
545 glGetIntegerv (GL_UNPACK_SWAP_BYTES, &swapby <<
546 glGetIntegerv (GL_UNPACK_LSB_FIRST, &lsbfirs <<
547 glGetIntegerv (GL_UNPACK_ROW_LENGTH, &rowlen <<
548 <<
549 glGetIntegerv (GL_UNPACK_SKIP_ROWS, &skiprow <<
550 glGetIntegerv (GL_UNPACK_SKIP_PIXELS, &skipp <<
551 glGetIntegerv (GL_UNPACK_ALIGNMENT, &alignme <<
552 <<
553 glPixelStorei (GL_UNPACK_SWAP_BYTES, GL_FALS <<
554 glPixelStorei (GL_UNPACK_LSB_FIRST, GL_FALSE <<
555 glPixelStorei (GL_UNPACK_ROW_LENGTH, 0); <<
556 <<
557 glPixelStorei (GL_UNPACK_SKIP_ROWS, 0); <<
558 glPixelStorei (GL_UNPACK_SKIP_PIXELS, 0); <<
559 glPixelStorei (GL_UNPACK_ALIGNMENT, 1); <<
560 <<
561 glReadBuffer(GL_FRONT); <<
562 glReadPixels (0, 0, (GLsizei)width, (GLsizei <<
563 <<
564 glPixelStorei (GL_UNPACK_SWAP_BYTES, swapbyt <<
565 glPixelStorei (GL_UNPACK_LSB_FIRST, lsbfirst <<
566 glPixelStorei (GL_UNPACK_ROW_LENGTH, rowleng <<
567 <<
568 glPixelStorei (GL_UNPACK_SKIP_ROWS, skiprows <<
569 glPixelStorei (GL_UNPACK_SKIP_PIXELS, skippi <<
570 glPixelStorei (GL_UNPACK_ALIGNMENT, alignmen <<
571 <<
572 return buffer; <<
573 } <<
574 <<
575 bool G4OpenGLViewer::printVectoredEPS() { <<
576 return printGl2PS(); <<
577 } <<
578 <<
579 bool G4OpenGLViewer::printNonVectoredEPS () { <<
580 <<
581 int width = getRealExportWidth(); <<
582 int height = getRealExportHeight(); <<
583 <<
584 FILE* fp; <<
585 GLubyte* pixels; <<
586 GLubyte* curpix; <<
587 int components, pos, i; <<
588 <<
589 pixels = grabPixels (fPrintColour, width, he <<
590 <<
591 if (pixels == NULL) { <<
592 G4cerr << "Failed to get pixels from Ope <<
593 return false; <<
594 } <<
595 if (fPrintColour) { <<
596 components = 3; <<
597 } else { <<
598 components = 1; <<
599 } <<
600 std::string name = getRealPrintFilename(); <<
601 fp = fopen (name.c_str(), "w"); <<
602 if (fp == NULL) { <<
603 G4cerr << "Can't open filename " << name.c <<
604 return false; <<
605 } <<
606 <<
607 fprintf (fp, "%%!PS-Adobe-2.0 EPSF-1.2\n"); <<
608 fprintf (fp, "%%%%Title: %s\n", name.c_str() <<
609 fprintf (fp, "%%%%Creator: OpenGL pixmap ren <<
610 fprintf (fp, "%%%%BoundingBox: 0 0 %d %d\n", <<
611 fprintf (fp, "%%%%EndComments\n"); <<
612 fprintf (fp, "gsave\n"); <<
613 fprintf (fp, "/bwproc {\n"); <<
614 fprintf (fp, " rgbproc\n"); <<
615 fprintf (fp, " dup length 3 idiv string 0 <<
616 fprintf (fp, " 5 -1 roll {\n"); <<
617 fprintf (fp, " add 2 1 roll 1 sub dup 0 e <<
618 fprintf (fp, " { pop 3 idiv 3 -1 roll dup <<
619 fprintf (fp, " 3 1 roll 5 -1 roll } pu <<
620 fprintf (fp, " { 2 1 roll } ifelse\n"); <<
621 fprintf (fp, " }forall\n"); <<
622 fprintf (fp, " pop pop pop\n"); <<
623 fprintf (fp, "} def\n"); <<
624 fprintf (fp, "systemdict /colorimage known n <<
625 fprintf (fp, " /colorimage {\n"); <<
626 fprintf (fp, " pop\n"); <<
627 fprintf (fp, " pop\n"); <<
628 fprintf (fp, " /rgbproc exch def\n"); <<
629 fprintf (fp, " { bwproc } image\n"); <<
630 fprintf (fp, " } def\n"); <<
631 fprintf (fp, "} if\n"); <<
632 fprintf (fp, "/picstr %d string def\n", widt <<
633 fprintf (fp, "%d %d scale\n", width, height) <<
634 fprintf (fp, "%d %d %d\n", width, height, 8) <<
635 fprintf (fp, "[%d 0 0 %d 0 0]\n", width, hei <<
636 fprintf (fp, "{currentfile picstr readhexstr <<
637 fprintf (fp, "false %d\n", components); <<
638 fprintf (fp, "colorimage\n"); <<
639 <<
640 curpix = (GLubyte*) pixels; <<
641 pos = 0; <<
642 for (i = width*height*components; i>0; i--) <<
643 fprintf (fp, "%02hx ", (unsigned short)(*( <<
644 if (++pos >= 32) { <<
645 fprintf (fp, "\n"); <<
646 pos = 0; <<
647 } <<
648 } <<
649 if (pos) <<
650 fprintf (fp, "\n"); <<
651 <<
652 fprintf (fp, "grestore\n"); <<
653 fprintf (fp, "showpage\n"); <<
654 delete [] pixels; <<
655 fclose (fp); <<
656 <<
657 // Reset for next time (useful if size chang <<
658 // fPrintSizeX = -1; <<
659 // fPrintSizeY = -1; <<
660 <<
661 return true; <<
662 } <<
663 <<
664 /** Return if gl2ps is currently writing <<
665 */ <<
666 bool G4OpenGLViewer::isGl2psWriting() { <<
667 <<
668 if (!fGL2PSAction) return false; <<
669 if (fGL2PSAction->fileWritingEnabled()) { <<
670 return true; <<
671 } <<
672 return false; <<
673 } <<
674 <<
675 <<
676 G4bool G4OpenGLViewer::isFramebufferReady() { <<
677 bool check = false; <<
678 #ifdef G4VIS_BUILD_OPENGLQT_DRIVER <<
679 check = true; <<
680 #endif <<
681 #ifdef G4VIS_BUILD_OPENGLX_DRIVER <<
682 check = false; <<
683 #endif <<
684 #ifdef G4VIS_BUILD_OPENGLXM_DRIVER <<
685 check = false; <<
686 #endif <<
687 #ifdef G4VIS_BUILD_OPENGLWIN32_DRIVER <<
688 check = false; <<
689 #endif <<
690 <<
691 #if GL_ARB_framebuffer_object <<
692 if (check) { <<
693 // if ( glCheckFramebufferStatus(GL_FRAMEBU <<
694 // return false; <<
695 // } <<
696 } <<
697 #endif <<
698 return true; <<
699 } <<
700 <<
701 <<
702 /* Draw Gl2Ps text if needed <<
703 */ <<
704 void G4OpenGLViewer::DrawText(const G4Text& g4 <<
705 { <<
706 // gl2ps or GL window ? <<
707 if (isGl2psWriting()) { <<
708 <<
709 G4VSceneHandler::MarkerSizeType sizeType; <<
710 G4double size = fSceneHandler.GetMarkerSiz <<
711 G4Point3D position = g4text.GetPosition(); <<
712 <<
713 G4String textString = g4text.GetText(); <<
714 <<
715 glRasterPos3d(position.x(),position.y(),po <<
716 GLint align = GL2PS_TEXT_B; <<
717 <<
718 switch (g4text.GetLayout()) { <<
719 case G4Text::left: align = GL2PS_TEXT_BL; <<
720 case G4Text::centre: align = GL2PS_TEXT_B; <<
721 case G4Text::right: align = GL2PS_TEXT_BR; <<
722 } <<
723 <<
724 fGL2PSAction->addTextOpt(textString.c_str( <<
725 <<
726 } else { <<
727 <<
728 static G4int callCount = 0; <<
729 ++callCount; <<
730 //if (callCount <= 10 || callCount%100 == <<
731 if (callCount <= 1) { <<
732 G4cout << <<
733 "G4OpenGLViewer::DrawText: Not implemented f <<
734 << fName << <<
735 "\"\n Called with " <<
736 << g4text <<
737 << G4endl; <<
738 } <<
739 } <<
740 } <<
741 <<
742 /** Change PointSize on gl2ps if needed <<
743 */ <<
744 void G4OpenGLViewer::ChangePointSize(G4double <<
745 <<
746 if (isGl2psWriting()) { <<
747 fGL2PSAction->setPointSize(int(size)); <<
748 } else { <<
749 glPointSize (size); <<
750 } <<
751 } <<
752 <<
753 <<
754 /** Change LineSize on gl2ps if needed <<
755 */ <<
756 void G4OpenGLViewer::ChangeLineWidth(G4double <<
757 <<
758 if (isGl2psWriting()) { <<
759 fGL2PSAction->setLineWidth(int(width)); <<
760 } else { <<
761 glLineWidth (width); <<
762 } <<
763 } <<
764 <<
765 /** <<
766 Export image with the given name with width a <<
767 Several cases : <<
768 If name is "", filename will have the default <<
769 If name is "toto.png", set the name to "toto" <<
770 If name is "toto", set the name to "toto" and <<
771 Will also add an incremented suffix at the <<
772 */ <<
773 bool G4OpenGLViewer::exportImage(std::string n <<
774 <<
775 if (! setExportFilename(name)) { <<
776 return false; <<
777 } <<
778 <<
779 if ((width != -1) && (height != -1)) { <<
780 setExportSize(width, height); <<
781 } <<
782 <<
783 if (fExportImageFormat == "eps") { <<
784 fGL2PSAction->setExportImageFormat_EPS(); <<
785 } else if (fExportImageFormat == "ps") { <<
786 fGL2PSAction->setExportImageFormat_PS(); <<
787 } else if (fExportImageFormat == "svg") { <<
788 fGL2PSAction->setExportImageFormat_SVG(); <<
789 } else if (fExportImageFormat == "pdf") { <<
790 fGL2PSAction->setExportImageFormat_PDF(); <<
791 } else { <<
792 setExportImageFormat(fExportImageFormat,tr <<
793 return false; <<
794 } <<
795 <<
796 bool res; <<
797 <<
798 // Change the LC_NUMERIC value in order to h <<
799 // This case is only useful for French, Cana <<
800 size_t len = strlen(setlocale(LC_NUMERIC,NUL <<
801 char* oldLocale = (char*)(malloc(len+1)); <<
802 if(oldLocale!=NULL) strncpy(oldLocale,setloc <<
803 setlocale(LC_NUMERIC,"C"); <<
804 <<
805 if (((fExportImageFormat == "eps") || (fExpo <<
806 res = printNonVectoredEPS(); <<
807 } else { <<
808 res = printVectoredEPS(); <<
809 } <<
810 <<
811 // restore the local <<
812 if (oldLocale) { <<
813 setlocale(LC_NUMERIC,oldLocale); <<
814 free(oldLocale); <<
815 } <<
816 <<
817 if (res == false) { <<
818 G4cerr << "Error saving file... " << getRe <<
819 } else { <<
820 G4cout << "File " << getRealPrintFilename( <<
821 <<
822 // increment index if necessary <<
823 if ( fExportFilenameIndex != -1) { <<
824 fExportFilenameIndex++; <<
825 } <<
826 } <<
827 <<
828 return res; <<
829 } <<
830 212
>> 213 //Hidden line drawing requires three renderings to different buffers, so it
>> 214 //cannot be treated in G4OpenGLSceneHandler alone (as can wireframe or hidden
>> 215 //surface (solid) mode)
831 216
832 bool G4OpenGLViewer::printGl2PS() { << 217 //So, after SIGGRAPH97
833 218
834 int width = getRealExportWidth(); << 219 //1) Disable the colour and depth buffers, and Draw polygons in wireframe
835 int height = getRealExportHeight(); << 220 // mode to the stencil buffer, setting stencil value to 1 where pixels go.
836 bool res = true; <<
837 <<
838 // no need to redraw at each new primitive f <<
839 G4OpenGLSceneHandler& oglSceneHandler = dyna <<
840 G4OpenGLSceneHandler::FlushAction originalFl <<
841 oglSceneHandler.SetFlushAction(G4OpenGLScene <<
842 <<
843 if (!fGL2PSAction) return false; <<
844 <<
845 fGL2PSAction->setFileName(getRealPrintFilena <<
846 // try to resize <<
847 int X = fWinSize_x; <<
848 int Y = fWinSize_y; <<
849 <<
850 fWinSize_x = width; <<
851 fWinSize_y = height; <<
852 // Laurent G. 16/03/10 : Not the good way to <<
853 // We should draw in a new offscreen context <<
854 // resizing and drawing in current window... <<
855 // This should be solve when we will do an o <<
856 // to render OpenGL <<
857 // See : <<
858 // http://developer.apple.com/Mac/library/do <<
859 // http://www.songho.ca/opengl/gl_fbo.html <<
860 <<
861 ResizeGLView(); <<
862 bool extendBuffer = true; <<
863 bool endWriteAction = false; <<
864 bool beginWriteAction = true; <<
865 bool filePointerOk = true; <<
866 while ((extendBuffer) && (! endWriteAction) <<
867 <<
868 beginWriteAction = fGL2PSAction->enableFi <<
869 if(beginWriteAction) { <<
870 GLint vp[4]; <<
871 ::glGetIntegerv(GL_VIEWPORT,vp); <<
872 fGL2PSAction->setViewport(vp[0],vp[1],v <<
873 beginWriteAction = fGL2PSAction->beginP <<
874 } <<
875 <<
876 // 3 cases : <<
877 // - true <<
878 // - false && ! fGL2PSAction->fileWriting <<
879 // - false && fGL2PSAction->fileWritingEn <<
880 <<
881 filePointerOk = fGL2PSAction->fileWriting <<
882 <<
883 if (beginWriteAction) { <<
884 <<
885 // Set the viewport <<
886 // By default, we choose the line width <<
887 fGL2PSAction->setLineWidth(fGl2psDefaul <<
888 // By default, we choose the point size <<
889 fGL2PSAction->setPointSize(fGl2psDefaul <<
890 <<
891 DrawView (); <<
892 <<
893 endWriteAction = fGL2PSAction->endPage( <<
894 fGL2PSAction->disableFileWriting(); <<
895 } <<
896 if (filePointerOk) { <<
897 if ((! endWriteAction) || (! beginWrite <<
898 extendBuffer = fGL2PSAction->extendBu <<
899 } <<
900 } <<
901 } <<
902 fGL2PSAction->resetBufferSizeParameters(); <<
903 <<
904 if (!extendBuffer ) { <<
905 G4cerr << "ERROR: gl2ps buffer size is no <<
906 res = false; <<
907 } <<
908 if (!beginWriteAction ) { <<
909 G4cerr << "ERROR: saving file "<<getRealP <<
910 res = false; <<
911 } <<
912 if (!endWriteAction ) { <<
913 G4cerr << "gl2ps error. No output produce <<
914 res = false; <<
915 } <<
916 fWinSize_x = X; <<
917 fWinSize_y = Y; <<
918 <<
919 oglSceneHandler.SetFlushAction(originalFlush <<
920 <<
921 // Reset for next time (useful is size chang <<
922 // fPrintSizeX = 0; <<
923 // fPrintSizeY = 0; <<
924 221
925 return res; << 222 //First, disable writing to the colo(u)r buffer...
926 } << 223 glColorMask (GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
927 <<
928 unsigned int G4OpenGLViewer::getWinWidth() con <<
929 return fWinSize_x; <<
930 } <<
931 <<
932 unsigned int G4OpenGLViewer::getWinHeight() co <<
933 return fWinSize_y; <<
934 } <<
935 <<
936 G4bool G4OpenGLViewer::sizeHasChanged() { <<
937 return fSizeHasChanged; <<
938 } <<
939 <<
940 G4int G4OpenGLViewer::getRealExportWidth() { <<
941 if (fPrintSizeX == -1) { <<
942 return fWinSize_x; <<
943 } <<
944 GLint dims[2]; <<
945 glGetIntegerv(GL_MAX_VIEWPORT_DIMS, dims); <<
946 <<
947 // L.Garnier 01-2010: Some problems with mac <<
948 if ((dims[0] !=0 ) && (dims[1] !=0)) { <<
949 if (fPrintSizeX > dims[0]){ <<
950 return dims[0]; <<
951 } <<
952 } <<
953 if (fPrintSizeX < -1){ <<
954 return 0; <<
955 } <<
956 return fPrintSizeX; <<
957 } <<
958 <<
959 G4int G4OpenGLViewer::getRealExportHeight() { <<
960 if (fPrintSizeY == -1) { <<
961 return fWinSize_y; <<
962 } <<
963 GLint dims[2]; <<
964 glGetIntegerv(GL_MAX_VIEWPORT_DIMS, dims); <<
965 <<
966 // L.Garnier 01-2010: Some problems with mac <<
967 if ((dims[0] !=0 ) && (dims[1] !=0)) { <<
968 if (fPrintSizeY > dims[1]){ <<
969 return dims[1]; <<
970 } <<
971 } <<
972 if (fPrintSizeY < -1){ <<
973 return 0; <<
974 } <<
975 return fPrintSizeY; <<
976 } <<
977 <<
978 void G4OpenGLViewer::setExportSize(G4int X, G4 <<
979 fPrintSizeX = X; <<
980 fPrintSizeY = Y; <<
981 } <<
982 <<
983 /** <<
984 If name is "" or "!", filename and extension <<
985 If name is "toto.png", set the name to "toto" <<
986 If name is "toto", set the name to "toto" and <<
987 If name is the same as previous, do not reset <<
988 */ <<
989 bool G4OpenGLViewer::setExportFilename(G4Strin <<
990 if (name == "!") { <<
991 name = ""; <<
992 } <<
993 <<
994 if (inc) { <<
995 if ((name != "") && (fExportFilename != na <<
996 fExportFilenameIndex=0; <<
997 } <<
998 } else { <<
999 fExportFilenameIndex=-1; <<
1000 } <<
1001 <<
1002 if (name.size() == 0) { <<
1003 name = getRealPrintFilename().c_str(); <<
1004 } else { <<
1005 // guess format by extention <<
1006 std::string extension = name.substr(name. <<
1007 // If there is a dot in the name the abov <<
1008 if (extension.size() >= 3 && extension.si <<
1009 if (setExportImageFormat(extension, fal <<
1010 fExportFilename = name.substr(0,name. <<
1011 } else { // No viable extension found <<
1012 return false; <<
1013 } <<
1014 } else { // Assume name is already the r <<
1015 fExportFilename = name; <<
1016 } <<
1017 } <<
1018 return true; <<
1019 } <<
1020 224
1021 std::string G4OpenGLViewer::getRealPrintFilen << 225 //Enable the stencil buffer...
1022 std::string temp = fExportFilename; << 226 glEnable (GL_STENCIL_TEST);
1023 if (fExportFilenameIndex != -1) { <<
1024 temp += std::string("_"); <<
1025 std::ostringstream os; <<
1026 os << std::setw(4) << std::setfill('0') < <<
1027 std::string nb_str = os.str(); <<
1028 temp += nb_str; <<
1029 } <<
1030 temp += "."+fExportImageFormat; <<
1031 return temp; <<
1032 } <<
1033 227
1034 GLdouble G4OpenGLViewer::getSceneNearWidth() << 228 //Now disable writing to the depth buffer...
1035 { << 229 glDisable (GL_DEPTH_TEST);
1036 if (!fSceneHandler.GetScene()) { <<
1037 return 0; <<
1038 } <<
1039 const G4Point3D targetPoint <<
1040 = fSceneHandler.GetScene()->GetStandardTa <<
1041 + fVP.GetCurrentTargetPoint (); <<
1042 G4double radius = fSceneHandler.GetScene()- <<
1043 if(radius<=0.) radius = 1.; <<
1044 const G4double cameraDistance = fVP.GetCame <<
1045 const GLdouble pnear = fVP.GetNearDistanc <<
1046 return 2 * fVP.GetFrontHalfHeight (pnear, r <<
1047 } <<
1048 230
1049 GLdouble G4OpenGLViewer::getSceneFarWidth() << 231 //Clear all stencil buffer values to 0...
1050 { << 232 glClearStencil (0);
1051 if (!fSceneHandler.GetScene()) { << 233 glClear (GL_STENCIL_BUFFER_BIT);
1052 return 0; <<
1053 } <<
1054 const G4Point3D targetPoint <<
1055 = fSceneHandler.GetScene()->GetStandardTa <<
1056 + fVP.GetCurrentTargetPoint (); <<
1057 G4double radius = fSceneHandler.GetScene()- <<
1058 if(radius<=0.) radius = 1.; <<
1059 const G4double cameraDistance = fVP.GetCame <<
1060 const GLdouble pnear = fVP.GetNearDistanc <<
1061 const GLdouble pfar = fVP.GetFarDistance <<
1062 return 2 * fVP.GetFrontHalfHeight (pfar, ra <<
1063 } <<
1064 234
>> 235 //Prepare stencil buffer...
>> 236 glStencilFunc (GL_ALWAYS, //When to pass a pixel in the stencil test
>> 237 0x1, //The ref val to compare with masked stencil val
>> 238 0x1); //The mask to AND with ref and val before test
1065 239
1066 GLdouble G4OpenGLViewer::getSceneDepth() << 240 glStencilOp (GL_KEEP, //If stencil test fails *irrelevant*
1067 { << 241 GL_KEEP, //If depth test passes *irrelevant*
1068 if (!fSceneHandler.GetScene()) { << 242 GL_REPLACE); //If no depth test *this is applied to every pixel
1069 return 0; << 243 //drawn to the stencil buffer in this pass*
1070 } <<
1071 const G4Point3D targetPoint <<
1072 = fSceneHandler.GetScene()->GetStandardTa <<
1073 + fVP.GetCurrentTargetPoint (); <<
1074 G4double radius = fSceneHandler.GetScene()- <<
1075 if(radius<=0.) radius = 1.; <<
1076 const G4double cameraDistance = fVP.GetCame <<
1077 const GLdouble pnear = fVP.GetNearDistanc <<
1078 return fVP.GetFarDistance (cameraDistance, <<
1079 } <<
1080 244
>> 245 //Hence, everywhere a pixel is drawn, stencil value=1, 0 everywhere else.
1081 246
>> 247 //Set the drawing style to wireframe...
>> 248 fVP.SetDrawingStyle (G4ViewParameters::wireframe);
1082 249
1083 void G4OpenGLViewer::rotateScene(G4double dx, << 250 NeedKernelVisit ();
1084 { << 251 ProcessView ();
1085 if (fVP.GetRotationStyle() == G4ViewParamet <<
1086 rotateSceneInViewDirection(dx,dy); <<
1087 } else { <<
1088 if( dx != 0) { <<
1089 rotateSceneThetaPhi(dx,0); <<
1090 } <<
1091 if( dy != 0) { <<
1092 rotateSceneThetaPhi(0,dy); <<
1093 } <<
1094 } <<
1095 } 252 }
1096 253
>> 254 void G4OpenGLViewer::HLRSecondPass () {
1097 255
1098 void G4OpenGLViewer::rotateSceneToggle(G4doub << 256 G4cout << "Second pass HLR" << G4endl;
1099 { <<
1100 if (fVP.GetRotationStyle() != G4ViewParamet <<
1101 rotateSceneInViewDirection(dx,dy); <<
1102 } else { <<
1103 if( dx != 0) { <<
1104 rotateSceneThetaPhi(dx,0); <<
1105 } <<
1106 if( dy != 0) { <<
1107 rotateSceneThetaPhi(0,dy); <<
1108 } <<
1109 } <<
1110 } <<
1111 257
1112 void G4OpenGLViewer::rotateSceneThetaPhi(G4do << 258 //2) Use the stencil buffer to mask out pixels where stencil value = 1, and
1113 { << 259 // render to the stencil buffer as depth tested filled polygons.
1114 if (!fSceneHandler.GetScene()) { <<
1115 return; <<
1116 } <<
1117 260
1118 G4Vector3D vp; << 261 glStencilFunc (GL_EQUAL, 0x1, 0x1);
1119 G4Vector3D up; << 262 glStencilOp (GL_KEEP, GL_KEEP, GL_KEEP);
1120 << 263 glDepthFunc (GL_LEQUAL);
1121 G4Vector3D xprime; << 264 glEnable (GL_DEPTH_TEST);
1122 G4Vector3D yprime; <<
1123 G4Vector3D zprime; <<
1124 <<
1125 G4double delta_alpha; <<
1126 G4double delta_theta; <<
1127 <<
1128 G4Vector3D new_vp; <<
1129 G4Vector3D new_up; <<
1130 <<
1131 G4double cosalpha; <<
1132 G4double sinalpha; <<
1133 <<
1134 G4Vector3D a1; <<
1135 G4Vector3D a2; <<
1136 G4Vector3D delta; <<
1137 G4Vector3D viewPoint; <<
1138 265
1139 << 266 //Set the drawing style to hlhsr (solid)...
1140 //phi spin stuff here << 267 fVP.SetDrawingStyle (G4ViewParameters::hsr);
1141 <<
1142 vp = fVP.GetViewpointDirection ().unit (); <<
1143 up = fVP.GetUpVector ().unit (); <<
1144 <<
1145 yprime = (up.cross(vp)).unit(); <<
1146 zprime = (vp.cross(yprime)).unit(); <<
1147 <<
1148 if (fVP.GetLightsMoveWithCamera()) { <<
1149 delta_alpha = dy * fRot_sens; <<
1150 delta_theta = -dx * fRot_sens; <<
1151 } else { <<
1152 delta_alpha = -dy * fRot_sens; <<
1153 delta_theta = dx * fRot_sens; <<
1154 } <<
1155 <<
1156 delta_alpha *= CLHEP::deg; <<
1157 delta_theta *= CLHEP::deg; <<
1158 268
1159 new_vp = std::cos(delta_alpha) * vp + std:: << 269 NeedKernelVisit ();
1160 << 270 ProcessView ();
1161 // to avoid z rotation flipping <<
1162 // to allow more than 360° rotation <<
1163 271
1164 if (fVP.GetLightsMoveWithCamera()) { <<
1165 new_up = (new_vp.cross(yprime)).unit(); <<
1166 if (new_vp.z()*vp.z() <0) { <<
1167 new_up.set(new_up.x(),-new_up.y(),new_u <<
1168 } <<
1169 } else { <<
1170 new_up = up; <<
1171 if (new_vp.z()*vp.z() <0) { <<
1172 new_up.set(new_up.x(),-new_up.y(),new_u <<
1173 } <<
1174 } <<
1175 fVP.SetUpVector(new_up); <<
1176 //////////////// <<
1177 // Rotates by fixed azimuthal angle delta_t <<
1178 <<
1179 cosalpha = new_up.dot (new_vp.unit()); <<
1180 sinalpha = std::sqrt (1. - std::pow (cosalp <<
1181 yprime = (new_up.cross (new_vp.unit())).uni <<
1182 xprime = yprime.cross (new_up); <<
1183 // Projection of vp on plane perpendicular <<
1184 a1 = sinalpha * xprime; <<
1185 // Required new projection... <<
1186 a2 = sinalpha * (std::cos (delta_theta) * x <<
1187 // Required Increment vector... <<
1188 delta = a2 - a1; <<
1189 // So new viewpoint is... <<
1190 viewPoint = new_vp.unit() + delta; <<
1191 <<
1192 fVP.SetViewAndLights (viewPoint); <<
1193 } 272 }
1194 273
1195 << 274 void G4OpenGLViewer::HLRThirdPass () {
1196 void G4OpenGLViewer::rotateSceneInViewDirecti <<
1197 { <<
1198 if (!fSceneHandler.GetScene()) { <<
1199 return; <<
1200 } <<
1201 <<
1202 G4Vector3D vp; <<
1203 G4Vector3D up; <<
1204 275
1205 G4Vector3D xprime; << 276 //3) Turn off the stencil buffer, turn on the colour buffer
1206 G4Vector3D yprime; << 277 // and render polygons in wireframe mode.
1207 G4Vector3D zprime; <<
1208 <<
1209 G4Vector3D new_vp; <<
1210 G4Vector3D new_up; <<
1211 <<
1212 G4Vector3D a1; <<
1213 G4Vector3D a2; <<
1214 G4Vector3D delta; <<
1215 G4Vector3D viewPoint; <<
1216 <<
1217 dx = dx/100; <<
1218 dy = dy/100; <<
1219 <<
1220 //phi spin stuff here <<
1221 <<
1222 vp = fVP.GetViewpointDirection ().unit(); <<
1223 up = fVP.GetUpVector ().unit(); <<
1224 <<
1225 G4Vector3D zPrimeVector = G4Vector3D(up.y() <<
1226 up.z()*vp.x()-up <<
1227 up.x()*vp.y()-up <<
1228 <<
1229 viewPoint = vp/fRot_sens + (zPrimeVector*dx <<
1230 new_up = G4Vector3D(viewPoint.y()*zPrimeVec <<
1231 viewPoint.z()*zPrimeVe <<
1232 viewPoint.x()*zPrimeVe <<
1233 <<
1234 G4Vector3D new_upUnit = new_up.unit(); <<
1235 <<
1236 <<
1237 <<
1238 fVP.SetUpVector(new_upUnit); <<
1239 fVP.SetViewAndLights (viewPoint); <<
1240 } <<
1241 <<
1242 <<
1243 void G4OpenGLViewer::addExportImageFormat(std <<
1244 fExportImageFormatVector.push_back(format); <<
1245 } <<
1246 <<
1247 bool G4OpenGLViewer::setExportImageFormat(std <<
1248 bool found = false; <<
1249 std::string list; <<
1250 for (unsigned int a=0; a<fExportImageFormat <<
1251 list +=fExportImageFormatVector.at(a) + " <<
1252 <<
1253 if (fExportImageFormatVector.at(a) == for <<
1254 if (! quiet) { <<
1255 G4cout << " Changing export format to <<
1256 } <<
1257 if (format != fExportImageFormat) { <<
1258 fExportFilenameIndex = 0; <<
1259 fExportImageFormat = format; <<
1260 } <<
1261 return true; <<
1262 } <<
1263 } <<
1264 if (! found) { <<
1265 if (format.size() == 0) { <<
1266 G4cout << " Current formats availables <<
1267 } else { <<
1268 G4cerr << " Format \"" << format << "\" <<
1269 } <<
1270 } <<
1271 return false; <<
1272 } <<
1273 <<
1274 <<
1275 // From MESA implementation : <<
1276 // http://www.techques.com/question/1-8660454 <<
1277 <<
1278 void G4OpenGLViewer::g4GluPickMatrix(GLdouble <<
1279 GLint viewport[4]) <<
1280 { <<
1281 GLdouble mat[16]; <<
1282 GLdouble sx, sy; <<
1283 GLdouble tx, ty; <<
1284 <<
1285 sx = viewport[2] / width; <<
1286 sy = viewport[3] / height; <<
1287 tx = (viewport[2] + 2.0 * (viewport[0] - <<
1288 ty = (viewport[3] + 2.0 * (viewport[1] - <<
1289 <<
1290 #define M(row, col) mat[col*4+row] <<
1291 M(0, 0) = sx; <<
1292 M(0, 1) = 0.0; <<
1293 M(0, 2) = 0.0; <<
1294 M(0, 3) = tx; <<
1295 M(1, 0) = 0.0; <<
1296 M(1, 1) = sy; <<
1297 M(1, 2) = 0.0; <<
1298 M(1, 3) = ty; <<
1299 M(2, 0) = 0.0; <<
1300 M(2, 1) = 0.0; <<
1301 M(2, 2) = 1.0; <<
1302 M(2, 3) = 0.0; <<
1303 M(3, 0) = 0.0; <<
1304 M(3, 1) = 0.0; <<
1305 M(3, 2) = 0.0; <<
1306 M(3, 3) = 1.0; <<
1307 #undef M <<
1308 <<
1309 glMultMatrixd(mat); <<
1310 } <<
1311 278
>> 279 G4cout << "Third pass HLR" << G4endl;
1312 280
>> 281 glDisable (GL_STENCIL_TEST);
>> 282 glColorMask (GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
1313 283
>> 284 //Set the drawing style to hlr wireframe...
>> 285 fVP.SetDrawingStyle (G4ViewParameters::wireframe);
1314 286
>> 287 NeedKernelVisit ();
>> 288 ProcessView ();
1315 289
1316 // From MESA implementation : << 290 fVP.SetDrawingStyle (G4ViewParameters::hlr);
1317 // https://github.com/jlamarche/iOS-OpenGLES- <<
1318 // or http://www.daniweb.com/software-develop <<
1319 <<
1320 void G4OpenGLViewer::g4GluLookAt( GLdouble ey <<
1321 GLdouble centerx, GLd <<
1322 centerz, <<
1323 GLdouble upx, GLdoubl <<
1324 { <<
1325 GLdouble mat[16]; <<
1326 GLdouble x[3], y[3], z[3]; <<
1327 GLdouble mag; <<
1328 <<
1329 /* Make rotation matrix */ <<
1330 <<
1331 /* Z vector */ <<
1332 z[0] = eyex - centerx; <<
1333 z[1] = eyey - centery; <<
1334 z[2] = eyez - centerz; <<
1335 mag = std::sqrt(z[0] * z[0] + z[1] * z[1] + <<
1336 if (mag) { /* mpichler, 19950515 */ <<
1337 z[0] /= mag; <<
1338 z[1] /= mag; <<
1339 z[2] /= mag; <<
1340 } <<
1341 <<
1342 /* Y vector */ <<
1343 y[0] = upx; <<
1344 y[1] = upy; <<
1345 y[2] = upz; <<
1346 <<
1347 /* X vector = Y cross Z */ <<
1348 x[0] = y[1] * z[2] - y[2] * z[1]; <<
1349 x[1] = -y[0] * z[2] + y[2] * z[0]; <<
1350 x[2] = y[0] * z[1] - y[1] * z[0]; <<
1351 <<
1352 /* Recompute Y = Z cross X */ <<
1353 y[0] = z[1] * x[2] - z[2] * x[1]; <<
1354 y[1] = -z[0] * x[2] + z[2] * x[0]; <<
1355 y[2] = z[0] * x[1] - z[1] * x[0]; <<
1356 <<
1357 /* mpichler, 19950515 */ <<
1358 /* cross product gives area of parallelogra <<
1359 * non-perpendicular unit-length vectors; s <<
1360 */ <<
1361 <<
1362 mag = std::sqrt(x[0] * x[0] + x[1] * x[1] + <<
1363 if (mag) { <<
1364 x[0] /= mag; <<
1365 x[1] /= mag; <<
1366 x[2] /= mag; <<
1367 } <<
1368 <<
1369 mag = std::sqrt(y[0] * y[0] + y[1] * y[1] + <<
1370 if (mag) { <<
1371 y[0] /= mag; <<
1372 y[1] /= mag; <<
1373 y[2] /= mag; <<
1374 } <<
1375 <<
1376 #define M(row,col) mat[col*4+row] <<
1377 M(0, 0) = x[0]; <<
1378 M(0, 1) = x[1]; <<
1379 M(0, 2) = x[2]; <<
1380 M(0, 3) = 0.0; <<
1381 M(1, 0) = y[0]; <<
1382 M(1, 1) = y[1]; <<
1383 M(1, 2) = y[2]; <<
1384 M(1, 3) = 0.0; <<
1385 M(2, 0) = z[0]; <<
1386 M(2, 1) = z[1]; <<
1387 M(2, 2) = z[2]; <<
1388 M(2, 3) = 0.0; <<
1389 M(3, 0) = 0.0; <<
1390 M(3, 1) = 0.0; <<
1391 M(3, 2) = 0.0; <<
1392 M(3, 3) = 1.0; <<
1393 #undef M <<
1394 glMultMatrixd(mat); <<
1395 <<
1396 /* Translate Eye to Origin */ <<
1397 glTranslated(-eyex, -eyey, -eyez); <<
1398 } <<
1399 <<
1400 void G4OpenGLViewer::g4GlOrtho (GLdouble left <<
1401 // glOrtho (left, right, bottom, top, near <<
1402 <<
1403 GLdouble a = 2.0 / (right - left); <<
1404 GLdouble b = 2.0 / (top - bottom); <<
1405 GLdouble c = -2.0 / (zFar - zNear); <<
1406 <<
1407 GLdouble tx = - (right + left)/(right - lef <<
1408 GLdouble ty = - (top + bottom)/(top - botto <<
1409 GLdouble tz = - (zFar + zNear)/(zFar - zNea <<
1410 <<
1411 GLdouble ortho[16] = { <<
1412 a, 0, 0, 0, <<
1413 0, b, 0, 0, <<
1414 0, 0, c, 0, <<
1415 tx, ty, tz, 1 <<
1416 }; <<
1417 glMultMatrixd(ortho); <<
1418 <<
1419 } <<
1420 <<
1421 <<
1422 void G4OpenGLViewer::g4GlFrustum (GLdouble le <<
1423 // glFrustum (left, right, bottom, top, ne <<
1424 <<
1425 GLdouble deltaX = right - left; <<
1426 GLdouble deltaY = top - bottom; <<
1427 GLdouble deltaZ = zFar - zNear; <<
1428 <<
1429 GLdouble a = 2.0f * zNear / deltaX; <<
1430 GLdouble b = 2.0f * zNear / deltaY; <<
1431 GLdouble c = (right + left) / deltaX; <<
1432 GLdouble d = (top + bottom) / deltaY; <<
1433 GLdouble e = -(zFar + zNear) / (zFar - zNea <<
1434 GLdouble f = -2.0f * zFar * zNear / deltaZ; <<
1435 <<
1436 GLdouble proj[16] = { <<
1437 a, 0, 0, 0, <<
1438 0, b, 0, 0, <<
1439 c, d, e, -1.0f, <<
1440 0, 0, f, 0 <<
1441 }; <<
1442 <<
1443 glMultMatrixd(proj); <<
1444 <<
1445 } 291 }
1446 292
1447 G4String G4OpenGLViewerPickMap::print() { << 293 #endif
1448 std::ostringstream txt; <<
1449 for (unsigned int a=0; a<fAttributes.size() <<
1450 txt << fAttributes[a]; <<
1451 if (a < fAttributes.size() - 1) txt << "\ <<
1452 } <<
1453 return txt.str(); <<
1454 } <<
1455 294