forked from root-project/root
-
Notifications
You must be signed in to change notification settings - Fork 0
/
TEveTrackProjected.cxx
309 lines (259 loc) · 8.98 KB
/
TEveTrackProjected.cxx
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
// @(#)root/eve:$Id$
// Authors: Matevz Tadel & Alja Mrak-Tadel: 2006, 2007
/*************************************************************************
* Copyright (C) 1995-2007, Rene Brun and Fons Rademakers. *
* All rights reserved. *
* *
* For the licensing terms see $ROOTSYS/LICENSE. *
* For the list of contributors see $ROOTSYS/README/CREDITS. *
*************************************************************************/
#include "TEveTrackProjected.h"
#include "TEveTrackPropagator.h"
#include "TEveProjectionManager.h"
#include "TEveTrans.h"
/** \class TEveTrackProjected
\ingroup TEve
Projected copy of a TEveTrack.
*/
ClassImp(TEveTrackProjected);
////////////////////////////////////////////////////////////////////////////////
/// Default constructor.
TEveTrackProjected::TEveTrackProjected() :
TEveTrack (),
fOrigPnts (nullptr)
{
}
////////////////////////////////////////////////////////////////////////////////
/// This is virtual method from base-class TEveProjected.
void TEveTrackProjected::SetProjection(TEveProjectionManager* mng, TEveProjectable* model)
{
TEveProjected::SetProjection(mng, model);
CopyVizParams(dynamic_cast<TEveElement*>(model));
TEveTrack* otrack = dynamic_cast<TEveTrack*>(fProjectable);
SetTrackParams(*otrack);
SetLockPoints(otrack->GetLockPoints());
}
////////////////////////////////////////////////////////////////////////////////
/// Set depth (z-coordinate) of the projected points.
void TEveTrackProjected::SetDepthLocal(Float_t d)
{
SetDepthCommon(d, this, fBBox);
Int_t n = Size();
Float_t *p = GetP() + 2;
for (Int_t i = 0; i < n; ++i, p+=3)
{
*p = fDepth;
}
for (vPathMark_i pm = fPathMarks.begin(); pm != fPathMarks.end(); ++pm)
{
pm->fV.fZ = fDepth;
}
}
////////////////////////////////////////////////////////////////////////////////
/// Virtual method from base-class TEveProjected.
void TEveTrackProjected::UpdateProjection()
{
MakeTrack(kFALSE); // TEveProjectionManager makes recursive calls
}
////////////////////////////////////////////////////////////////////////////////
/// Find index of the last point that lies within the same
/// segment of projected space.
/// For example, rho-z projection separates upper and lower hemisphere
/// and tracks break into two lines when crossing the y=0 plane.
Int_t TEveTrackProjected::GetBreakPointIdx(Int_t start)
{
TEveProjection *projection = fManager->GetProjection();
Int_t val = fLastPoint;
if (projection->HasSeveralSubSpaces())
{
TEveVector v1, v2;
if (Size() > 1)
{
Int_t i = start;
while(i < fLastPoint)
{
GetPoint(i, v1.fX, v1.fY, v1.fZ);
GetPoint(i+1, v2.fX, v2.fY, v2.fZ);
if(projection->AcceptSegment(v1, v2, fPropagator->GetDelta()) == kFALSE)
{
val = i;
break;
}
i++;
}
}
}
return val;
}
////////////////////////////////////////////////////////////////////////////////
/// Calculate the points of the track for drawing.
/// Call base-class, project, find break-points and insert points
/// required for full representation.
void TEveTrackProjected::MakeTrack(Bool_t recurse)
{
TEveTrack *otrack = dynamic_cast<TEveTrack*>(fProjectable);
TEveTrans *trans = otrack->PtrMainTrans(kFALSE);
TEveProjection *projection = fManager->GetProjection();
fBreakPoints.clear();
fPathMarks.clear();
SetPathMarks(*otrack);
if (GetLockPoints() || otrack->Size() > 0)
{
ClonePoints(*otrack);
fLastPMIdx = otrack->GetLastPMIdx();
}
else
{
TEveTrack::MakeTrack(recurse);
}
if (Size() == 0) return; // All points can be outside of MaxR / MaxZ limits.
// Break segments additionally if required by the projection.
ReduceSegmentLengths(projection->GetMaxTrackStep());
// Project points, store originals (needed for break-points).
Float_t *p = GetP();
fOrigPnts = new TEveVector[Size()];
for (Int_t i = 0; i < Size(); ++i, p+=3)
{
if (trans) trans->MultiplyIP(p);
fOrigPnts[i].Set(p);
projection->ProjectPointfv(p, fDepth);
}
Float_t x, y, z;
Int_t bL = 0, bR = GetBreakPointIdx(0);
std::vector<TEveVector> vvec;
while (kTRUE)
{
for (Int_t i=bL; i<=bR; i++)
{
GetPoint(i, x, y, z);
vvec.push_back(TEveVector(x, y, z));
}
if (bR == fLastPoint)
break;
TEveVector vL = fOrigPnts[bR];
TEveVector vR = fOrigPnts[bR + 1];
projection->BisectBreakPoint(vL, vR, kTRUE, fDepth);
vvec.push_back(vL);
fBreakPoints.push_back((Int_t)vvec.size());
vvec.push_back(vR);
bL = bR + 1;
bR = GetBreakPointIdx(bL);
}
fBreakPoints.push_back((Int_t)vvec.size()); // Mark the track-end for drawing.
// Decide if points need to be fixed.
// This (and the fixing itself) should really be done in TEveProjection but
// for now we do it here as RhoZ is the only one that needs it.
Bool_t fix_y = kFALSE;
Float_t sign_y = 0;
if (projection->HasSeveralSubSpaces())
{
switch (fPropagator->GetProjTrackBreaking())
{
case TEveTrackPropagator::kPTB_UseFirstPointPos:
{
fix_y = kTRUE;
sign_y = vvec.front().fY;
break;
}
case TEveTrackPropagator::kPTB_UseLastPointPos:
{
fix_y = kTRUE;
sign_y = vvec.back().fY;
break;
}
}
}
Reset((Int_t)vvec.size());
for (std::vector<TEveVector>::iterator i=vvec.begin(); i!=vvec.end(); ++i)
{
if (fix_y)
SetNextPoint((*i).fX, TMath::Sign((*i).fY, sign_y), (*i).fZ);
else
SetNextPoint((*i).fX, (*i).fY, (*i).fZ);
}
delete [] fOrigPnts; fOrigPnts = nullptr;
// Project path-marks
for (vPathMark_i pm = fPathMarks.begin(); pm != fPathMarks.end(); ++pm)
{
projection->ProjectPointdv(trans, pm->fV.Arr(), pm->fV.Arr(), fDepth);
}
}
////////////////////////////////////////////////////////////////////////////////
/// Print line segments info.
void TEveTrackProjected::PrintLineSegments()
{
printf("%s LineSegments:\n", GetName());
Int_t start = 0;
Int_t segment = 0;
TEveVector sVec;
TEveVector bPnt;
for (std::vector<Int_t>::iterator bpi = fBreakPoints.begin();
bpi != fBreakPoints.end(); ++bpi)
{
Int_t size = *bpi - start;
GetPoint(start, sVec.fX, sVec.fY, sVec.fZ);
GetPoint((*bpi)-1, bPnt.fX, bPnt.fY, bPnt.fZ);
printf("seg %d size %d start %d ::(%f, %f, %f) (%f, %f, %f)\n",
segment, size, start, sVec.fX, sVec.fY, sVec.fZ,
bPnt.fX, bPnt.fY, bPnt.fZ);
start += size;
segment ++;
}
}
////////////////////////////////////////////////////////////////////////////////
/// Virtual method from from base-class TEveTrack.
void TEveTrackProjected::SecSelected(TEveTrack* /*track*/)
{
TEveTrack* t = dynamic_cast<TEveTrack*>(fProjectable);
if (t)
t->SecSelected(t);
}
/** \class TEveTrackListProjected
\ingroup TEve
Specialization of TEveTrackList for holding TEveTrackProjected objects.
*/
ClassImp(TEveTrackListProjected);
////////////////////////////////////////////////////////////////////////////////
/// Default constructor.
TEveTrackListProjected::TEveTrackListProjected() :
TEveTrackList (),
TEveProjected ()
{
}
////////////////////////////////////////////////////////////////////////////////
/// This is virtual method from base-class TEveProjected.
void TEveTrackListProjected::SetProjection(TEveProjectionManager* proj, TEveProjectable* model)
{
TEveProjected::SetProjection(proj, model);
CopyVizParams(dynamic_cast<TEveElement*>(model));
TEveTrackList& tl = * dynamic_cast<TEveTrackList*>(model);
SetPropagator(tl.GetPropagator());
}
////////////////////////////////////////////////////////////////////////////////
/// This is not needed for functionality as SetDepth(Float_t d)
/// is overriden -- but SetDepthLocal() is abstract.
/// Just emits a warning if called.
void TEveTrackListProjected::SetDepthLocal(Float_t /*d*/)
{
Warning("SetDepthLocal", "This function only exists to fulfill an abstract interface.");
}
////////////////////////////////////////////////////////////////////////////////
/// Set depth of all children inheriting from TEveTrackProjected.
void TEveTrackListProjected::SetDepth(Float_t d)
{
SetDepth(d, this);
}
////////////////////////////////////////////////////////////////////////////////
/// Set depth of all children of el inheriting from TEveTrackProjected.
void TEveTrackListProjected::SetDepth(Float_t d, TEveElement* el)
{
TEveTrackProjected* ptrack;
for (List_i i = el->BeginChildren(); i != el->EndChildren(); ++i)
{
ptrack = dynamic_cast<TEveTrackProjected*>(*i);
if (ptrack)
ptrack->SetDepth(d);
if (fRecurse)
SetDepth(d, *i);
}
}