source: trunk/source/visualization/modeling/src/G4TrajectoryDrawerUtils.cc@ 849

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25//
26// $Id: G4TrajectoryDrawerUtils.cc,v 1.11 2007/05/30 08:56:55 allison Exp $
27// GEANT4 tag $Name: $
28//
29// Jane Tinslay, John Allison, Joseph Perl November 2005
30//
31#include "G4TrajectoryDrawerUtils.hh"
32#include "G4Colour.hh"
33#include "G4Polyline.hh"
34#include "G4Polymarker.hh"
35#include "G4VTrajectory.hh"
36#include "G4VTrajectoryPoint.hh"
37#include "G4VisAttributes.hh"
38#include "G4VisTrajContext.hh"
39#include "G4VVisManager.hh"
40#include "G4UIcommand.hh"
41#include "G4AttValue.hh"
42
43namespace G4TrajectoryDrawerUtils {
44
45
46 void GetPoints(const G4VTrajectory& traj, G4Polyline& trajectoryLine,
47 G4Polymarker& auxiliaryPoints, G4Polymarker& stepPoints)
48 {
49 for (G4int i=0; i<traj.GetPointEntries(); i++) {
50 G4VTrajectoryPoint* aTrajectoryPoint = traj.GetPoint(i);
51
52 const std::vector<G4ThreeVector>* auxiliaries
53 = aTrajectoryPoint->GetAuxiliaryPoints();
54
55 if (0 != auxiliaries) {
56 for (size_t iAux=0; iAux<auxiliaries->size(); ++iAux) {
57 const G4ThreeVector pos((*auxiliaries)[iAux]);
58 trajectoryLine.push_back(pos);
59 auxiliaryPoints.push_back(pos);
60 }
61 }
62 const G4ThreeVector pos(aTrajectoryPoint->GetPosition());
63 trajectoryLine.push_back(pos);
64 stepPoints.push_back(pos);
65 }
66 }
67
68 void DrawLineAndPoints(const G4VTrajectory& traj, const G4int& i_mode, const G4Colour& colour, const G4bool& visible) {
69 // If i_mode>=0, draws a trajectory as a polyline (default is blue for
70 // positive, red for negative, green for neutral) and, if i_mode!=0,
71 // adds markers - yellow circles for step points and magenta squares
72 // for auxiliary points, if any - whose screen size in pixels is
73 // given by std::abs(i_mode)/1000. E.g: i_mode = 5000 gives easily
74 // visible markers.
75
76 G4VVisManager* pVVisManager = G4VVisManager::GetConcreteInstance();
77 if (0 == pVVisManager) return;
78
79 const G4double markerSize = std::abs(i_mode)/1000;
80 G4bool lineRequired (i_mode >= 0);
81 G4bool markersRequired (markerSize > 0.);
82
83 // Return if don't need to do anything
84 if (!lineRequired && !markersRequired) return;
85
86 // Get points to draw
87 G4Polyline trajectoryLine;
88 G4Polymarker stepPoints;
89 G4Polymarker auxiliaryPoints;
90
91 GetPoints(traj, trajectoryLine, auxiliaryPoints, stepPoints);
92
93 if (lineRequired) {
94 G4VisAttributes trajectoryLineAttribs(colour);
95 trajectoryLineAttribs.SetVisibility(visible);
96 trajectoryLine.SetVisAttributes(&trajectoryLineAttribs);
97 pVVisManager->Draw(trajectoryLine);
98 }
99
100 if (markersRequired) {
101 auxiliaryPoints.SetMarkerType(G4Polymarker::squares);
102 auxiliaryPoints.SetScreenSize(markerSize);
103 auxiliaryPoints.SetFillStyle(G4VMarker::filled);
104 G4VisAttributes auxiliaryPointsAttribs(G4Colour(0.,1.,1.)); // Magenta
105 auxiliaryPointsAttribs.SetVisibility(visible);
106 auxiliaryPoints.SetVisAttributes(&auxiliaryPointsAttribs);
107 pVVisManager->Draw(auxiliaryPoints);
108
109 stepPoints.SetMarkerType(G4Polymarker::circles);
110 stepPoints.SetScreenSize(markerSize);
111 stepPoints.SetFillStyle(G4VMarker::filled);
112 G4VisAttributes stepPointsAttribs(G4Colour(1.,1.,0.)); // Yellow.
113 stepPoints.SetVisAttributes(&stepPointsAttribs);
114 pVVisManager->Draw(stepPoints);
115 }
116
117 }
118
119 static void GetTimes(const G4VTrajectory& traj,
120 std::vector<G4double>& trajectoryLineTimes,
121 std::vector<G4double>& auxiliaryPointTimes,
122 std::vector<G4double>& stepPointTimes)
123 {
124 // It is important check that the sizes of times vectors produced
125 // by this function matches those of points vectors from
126 // GetPoints. If not, assume that the time information is
127 // invalid.
128
129 G4ThreeVector lastTrajectoryPointPosition;
130 for (G4int i=0; i<traj.GetPointEntries(); i++) {
131 G4VTrajectoryPoint* aTrajectoryPoint = traj.GetPoint(i);
132
133 // Pre- and Post-Point times from the trajectory point...
134 G4double trajectoryPointPreTime = -DBL_MAX;
135 G4double trajectoryPointPostTime = DBL_MAX;
136 std::vector<G4AttValue>* trajectoryPointAttValues =
137 aTrajectoryPoint->CreateAttValues();
138 if (!trajectoryPointAttValues) {
139 G4cout << "G4TrajectoryDrawerUtils::GetTimes: no att values."
140 << G4endl;
141 return;
142 } else {
143 G4bool foundPreTime = false, foundPostTime = false;
144 for (std::vector<G4AttValue>::iterator i =
145 trajectoryPointAttValues->begin();
146 i != trajectoryPointAttValues->end(); ++i) {
147 if (i->GetName() == "PreT") {
148 trajectoryPointPreTime =
149 G4UIcommand::ConvertToDimensionedDouble(i->GetValue());
150 foundPreTime = true;
151 }
152 if (i->GetName() == "PostT") {
153 trajectoryPointPostTime =
154 G4UIcommand::ConvertToDimensionedDouble(i->GetValue());
155 foundPostTime = true;
156 }
157 }
158 if (!foundPreTime || !foundPostTime) {
159 static G4bool warnedTimesNotFound = false;
160 if (!warnedTimesNotFound) {
161 G4cout <<
162 "WARNING: G4TrajectoryDrawerUtils::GetTimes: times not found."
163 << G4endl;
164 warnedTimesNotFound = true;
165 }
166 return;
167 }
168 }
169
170 const G4ThreeVector& trajectoryPointPosition =
171 aTrajectoryPoint->GetPosition();
172
173 const std::vector<G4ThreeVector>* auxiliaries
174 = aTrajectoryPoint->GetAuxiliaryPoints();
175
176 if (0 != auxiliaries) {
177 for (size_t iAux=0; iAux<auxiliaries->size(); ++iAux) {
178 // Interpolate time for auxiliary points...
179 const G4ThreeVector pos((*auxiliaries)[iAux]);
180 G4double s1 = (pos - lastTrajectoryPointPosition).mag();
181 G4double s2 = (trajectoryPointPosition - pos).mag();
182 G4double t = trajectoryPointPreTime +
183 (trajectoryPointPostTime - trajectoryPointPreTime) *
184 (s1 / (s1 + s2));
185 trajectoryLineTimes.push_back(t);
186 auxiliaryPointTimes.push_back(t);
187 }
188 }
189
190 trajectoryLineTimes.push_back(trajectoryPointPostTime);
191 stepPointTimes.push_back(trajectoryPointPostTime);
192
193 lastTrajectoryPointPosition = trajectoryPointPosition;
194 }
195 }
196
197 static void SliceLine(G4double timeIncrement,
198 G4Polyline& trajectoryLine,
199 std::vector<G4double>& trajectoryLineTimes)
200 {
201 // Assumes valid arguments from GetPoints and GetTimes.
202
203 G4Polyline newTrajectoryLine;
204 std::vector<G4double> newTrajectoryLineTimes;
205
206 newTrajectoryLine.push_back(trajectoryLine[0]);
207 newTrajectoryLineTimes.push_back(trajectoryLineTimes[0]);
208 size_t lineSize = trajectoryLine.size();
209 if (lineSize > 1) {
210 for (size_t i = 1; i < trajectoryLine.size(); ++i) {
211 G4double deltaT = trajectoryLineTimes[i] - trajectoryLineTimes[i - 1];
212 if (deltaT > 0.) {
213 G4double practicalTimeIncrement =
214 std::max(timeIncrement, deltaT / 100.);
215 for (G4double t =
216 (int(trajectoryLineTimes[i - 1]/practicalTimeIncrement) + 1) *
217 practicalTimeIncrement;
218 t <= trajectoryLineTimes[i];
219 t += practicalTimeIncrement) {
220 G4ThreeVector pos = trajectoryLine[i - 1] +
221 (trajectoryLine[i] - trajectoryLine[i - 1]) *
222 ((t - trajectoryLineTimes[i - 1]) / deltaT);
223 newTrajectoryLine.push_back(pos);
224 newTrajectoryLineTimes.push_back(t);
225 }
226 }
227 newTrajectoryLine.push_back(trajectoryLine[i]);
228 newTrajectoryLineTimes.push_back(trajectoryLineTimes[i]);
229 }
230 }
231
232 trajectoryLine = newTrajectoryLine;
233 trajectoryLineTimes = newTrajectoryLineTimes;
234 }
235
236 static void DrawWithoutTime(const G4VisTrajContext& myContext,
237 G4Polyline& trajectoryLine,
238 G4Polymarker& auxiliaryPoints,
239 G4Polymarker& stepPoints)
240 {
241 // Draw without time slice information
242
243 G4VVisManager* pVVisManager = G4VVisManager::GetConcreteInstance();
244 if (0 == pVVisManager) return;
245
246 if (myContext.GetDrawLine()) {
247 G4VisAttributes trajectoryLineAttribs(myContext.GetLineColour());
248 trajectoryLineAttribs.SetVisibility(myContext.GetLineVisible());
249 trajectoryLine.SetVisAttributes(&trajectoryLineAttribs);
250
251 pVVisManager->Draw(trajectoryLine);
252 }
253
254 if (myContext.GetDrawAuxPts() && (auxiliaryPoints.size() > 0)) {
255 auxiliaryPoints.SetMarkerType(myContext.GetAuxPtsType());
256 auxiliaryPoints.SetScreenSize(myContext.GetAuxPtsSize());
257 auxiliaryPoints.SetFillStyle(myContext.GetAuxPtsFillStyle());
258
259 G4VisAttributes auxiliaryPointsAttribs(myContext.GetAuxPtsColour());
260 auxiliaryPointsAttribs.SetVisibility(myContext.GetAuxPtsVisible());
261 auxiliaryPoints.SetVisAttributes(&auxiliaryPointsAttribs);
262
263 pVVisManager->Draw(auxiliaryPoints);
264 }
265
266 if (myContext.GetDrawStepPts() && (stepPoints.size() > 0)) {
267 stepPoints.SetMarkerType(myContext.GetStepPtsType());
268 stepPoints.SetScreenSize(myContext.GetStepPtsSize());
269 stepPoints.SetFillStyle(myContext.GetStepPtsFillStyle());
270
271 G4VisAttributes stepPointsAttribs(myContext.GetStepPtsColour());
272 stepPointsAttribs.SetVisibility(myContext.GetStepPtsVisible());
273 stepPoints.SetVisAttributes(&stepPointsAttribs);
274
275 pVVisManager->Draw(stepPoints);
276 }
277 }
278
279 static void DrawWithTime(const G4VisTrajContext& myContext,
280 G4Polyline& trajectoryLine,
281 G4Polymarker& auxiliaryPoints,
282 G4Polymarker& stepPoints,
283 std::vector<G4double>& trajectoryLineTimes,
284 std::vector<G4double>& auxiliaryPointTimes,
285 std::vector<G4double>& stepPointTimes)
286 {
287 // Draw with time slice information
288
289 G4VVisManager* pVVisManager = G4VVisManager::GetConcreteInstance();
290 if (0 == pVVisManager) return;
291
292 if (myContext.GetDrawLine()) {
293 G4VisAttributes trajectoryLineAttribs(myContext.GetLineColour());
294 trajectoryLineAttribs.SetVisibility(myContext.GetLineVisible());
295
296 for (size_t i = 1; i < trajectoryLine.size(); ++i ) {
297 G4Polyline slice;
298 slice.push_back(trajectoryLine[i -1]);
299 slice.push_back(trajectoryLine[i]);
300 trajectoryLineAttribs.SetStartTime(trajectoryLineTimes[i - 1]);
301 trajectoryLineAttribs.SetEndTime(trajectoryLineTimes[i]);
302 slice.SetVisAttributes(&trajectoryLineAttribs);
303 pVVisManager->Draw(slice);
304 }
305 }
306
307 if (myContext.GetDrawAuxPts() && (auxiliaryPoints.size() > 0)) {
308 G4VisAttributes auxiliaryPointsAttribs(myContext.GetAuxPtsColour());
309 auxiliaryPointsAttribs.SetVisibility(myContext.GetAuxPtsVisible());
310
311 for (size_t i = 0; i < auxiliaryPoints.size(); ++i ) {
312 G4Polymarker point;
313 point.push_back(auxiliaryPoints[i]);
314 point.SetMarkerType(myContext.GetAuxPtsType());
315 point.SetScreenSize(myContext.GetAuxPtsSize());
316 point.SetFillStyle(myContext.GetAuxPtsFillStyle());
317 auxiliaryPointsAttribs.SetStartTime(auxiliaryPointTimes[i]);
318 auxiliaryPointsAttribs.SetEndTime(auxiliaryPointTimes[i]);
319 point.SetVisAttributes(&auxiliaryPointsAttribs);
320 pVVisManager->Draw(point);
321 }
322 }
323
324 if (myContext.GetDrawStepPts() && (stepPoints.size() > 0)) {
325 G4VisAttributes stepPointsAttribs(myContext.GetStepPtsColour());
326 stepPointsAttribs.SetVisibility(myContext.GetStepPtsVisible());
327
328 for (size_t i = 0; i < stepPoints.size(); ++i ) {
329 G4Polymarker point;
330 point.push_back(stepPoints[i]);
331 point.SetMarkerType(myContext.GetStepPtsType());
332 point.SetScreenSize(myContext.GetStepPtsSize());
333 point.SetFillStyle(myContext.GetStepPtsFillStyle());
334 stepPointsAttribs.SetStartTime(stepPointTimes[i]);
335 stepPointsAttribs.SetEndTime(stepPointTimes[i]);
336 point.SetVisAttributes(&stepPointsAttribs);
337 pVVisManager->Draw(point);
338 }
339 }
340 }
341
342 void DrawLineAndPoints(const G4VTrajectory& traj, const G4VisTrajContext& context, const G4int& i_mode)
343 {
344 // Extra copy while i_mode is still around
345 G4VisTrajContext myContext(context);
346
347 if (i_mode != 0) {
348 const G4double markerSize = std::abs(i_mode)/1000;
349 G4bool lineRequired (i_mode >= 0);
350 G4bool markersRequired (markerSize > 0.);
351
352 myContext.SetDrawLine(lineRequired);
353 myContext.SetDrawAuxPts(markersRequired);
354 myContext.SetDrawStepPts(markersRequired);
355
356 myContext.SetAuxPtsSize(markerSize);
357 myContext.SetStepPtsSize(markerSize);
358
359 static G4bool warnedAboutIMode = false;
360
361 if (!warnedAboutIMode) {
362 G4cout<<"Trajectory drawing configuration will be based on imode value of "<<i_mode<<G4endl;
363 warnedAboutIMode = true;
364 }
365 }
366
367 // Return if don't need to do anything
368 if (!myContext.GetDrawLine() && !myContext.GetDrawAuxPts() && !myContext.GetDrawStepPts()) return;
369
370 // Get points to draw
371 G4Polyline trajectoryLine;
372 G4Polymarker stepPoints;
373 G4Polymarker auxiliaryPoints;
374
375 GetPoints(traj, trajectoryLine, auxiliaryPoints, stepPoints);
376
377 if (myContext.GetTimeSliceInterval()) {
378
379 // Get corresponding track time information, if any
380 std::vector<G4double> trajectoryLineTimes;
381 std::vector<G4double> stepPointTimes;
382 std::vector<G4double> auxiliaryPointTimes;
383
384 GetTimes(traj, trajectoryLineTimes, auxiliaryPointTimes, stepPointTimes);
385
386 // Check validity
387 if (trajectoryLineTimes.size() != trajectoryLine.size() ||
388 stepPointTimes.size() != stepPoints.size() ||
389 auxiliaryPointTimes.size() != auxiliaryPoints.size()) {
390
391 // Revert to drawing without time information...
392 DrawWithoutTime(myContext, trajectoryLine, auxiliaryPoints, stepPoints);
393 } else {
394
395 SliceLine(myContext.GetTimeSliceInterval(),
396 trajectoryLine, trajectoryLineTimes);
397
398 DrawWithTime(myContext,
399 trajectoryLine, auxiliaryPoints, stepPoints,
400 trajectoryLineTimes, auxiliaryPointTimes, stepPointTimes);
401 }
402
403 } else {
404
405 DrawWithoutTime(myContext, trajectoryLine, auxiliaryPoints, stepPoints);
406
407 }
408 }
409}
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