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1 | // $Id$ | |
2 | // Main authors: Matevz Tadel & Alja Mrak-Tadel: 2006, 2007 | |
3 | ||
4 | /************************************************************************** | |
5 | * Copyright(c) 1998-2008, ALICE Experiment at CERN, all rights reserved. * | |
6 | * See http://aliceinfo.cern.ch/Offline/AliRoot/License.html for * | |
7 | * full copyright notice. * | |
8 | **************************************************************************/ | |
9 | ||
10 | #include "AliEveJetPlaneGL.h" | |
11 | #include "AliEveJetPlane.h" | |
12 | ||
13 | #include <TGLRnrCtx.h> | |
14 | #include <TGLSelectRecord.h> | |
15 | #include <TGLIncludes.h> | |
16 | ||
17 | #include "TGLUtil.h" | |
18 | #include "TGLAxis.h" | |
19 | ||
20 | #include <TColor.h> | |
21 | #include <TStyle.h> | |
22 | #include <TROOT.h> | |
23 | ||
24 | //============================================================================== | |
25 | //============================================================================== | |
26 | // AliEveJetPlaneGL | |
27 | //============================================================================== | |
28 | ||
29 | //______________________________________________________________________________ | |
30 | // | |
31 | // GL renderer for AliEveJetPlane. | |
32 | ||
33 | ClassImp(AliEveJetPlaneGL) | |
34 | ||
35 | AliEveJetPlaneGL::AliEveJetPlaneGL() : TGLObject(), fM(0) | |
36 | { | |
37 | // Constructor. | |
38 | ||
39 | fDLCache = kFALSE; // Disable display list -- axis pain. | |
40 | } | |
41 | ||
42 | /******************************************************************************/ | |
43 | ||
44 | Bool_t AliEveJetPlaneGL::SetModel(TObject* obj, const Option_t* /*opt*/) | |
45 | { | |
46 | // Set model object. | |
47 | ||
48 | if (SetModelCheckClass(obj, AliEveJetPlane::Class())) { | |
49 | fM = dynamic_cast<AliEveJetPlane*>(obj); | |
50 | return kTRUE; | |
51 | } | |
52 | return kFALSE; | |
53 | } | |
54 | ||
55 | void AliEveJetPlaneGL::SetBBox() | |
56 | { | |
57 | // Set bounding box. | |
58 | ||
59 | SetAxisAlignedBBox(((AliEveJetPlane*)fExternalObj)->AssertBBox()); | |
60 | } | |
61 | ||
62 | /******************************************************************************/ | |
63 | ||
64 | void AliEveJetPlaneGL::DirectDraw(TGLRnrCtx& rnrCtx) const | |
65 | { | |
66 | // Render the object. | |
67 | ||
68 | Float_t minEta = (fM->fMinEta)*(fM->fEtaScale); | |
69 | Float_t maxEta = (fM->fMaxEta)*(fM->fEtaScale); | |
70 | Float_t minPhi = (fM->fMinPhi)*(fM->fPhiScale) - 350; | |
71 | Float_t maxPhi = (fM->fMaxPhi)*(fM->fPhiScale) - 350; | |
72 | Float_t phiCoord, etaCoord, dPhi, dEta; | |
73 | ||
74 | // Show frame for Eta-Phi coordinates | |
75 | ||
76 | glBegin(GL_LINE_LOOP); | |
77 | glVertex3f(minEta, minPhi, 0); | |
78 | glVertex3f(maxEta, minPhi, 0); | |
79 | glVertex3f(maxEta, maxPhi, 0); | |
80 | glVertex3f(minEta, maxPhi, 0); | |
81 | glEnd(); | |
82 | ||
83 | if (rnrCtx.Selection() == kFALSE && rnrCtx.Highlight() == kFALSE) | |
84 | { | |
85 | ||
86 | // Show grid in Eta-Phi coordinates | |
87 | ||
88 | dPhi = (maxPhi-minPhi)/(fM->fNPhiDiv - 1); | |
89 | dEta = (maxEta-minEta)/(fM->fNEtaDiv - 1); | |
90 | ||
91 | for (Int_t count = 1; count < fM->fNPhiDiv-1; ++count) | |
92 | { | |
93 | phiCoord = minPhi + count*dPhi; | |
94 | glBegin(GL_LINES); | |
95 | glVertex3f( minEta, phiCoord, 0); | |
96 | glVertex3f( maxEta, phiCoord, 0); | |
97 | glEnd(); | |
98 | } | |
99 | ||
100 | for (Int_t count = 1; count < fM->fNEtaDiv-1; ++count) | |
101 | { | |
102 | etaCoord = minEta + count*dEta; | |
103 | glBegin(GL_LINES); | |
104 | glVertex3f(etaCoord, minPhi, 0); | |
105 | glVertex3f(etaCoord, maxPhi, 0); | |
106 | glEnd(); | |
107 | } | |
108 | ||
109 | // Show axis tick marks and labels | |
110 | ||
111 | { | |
112 | TGLCapabilitySwitch lightsOff(GL_LIGHTING, false); | |
113 | ||
114 | TGLAxis ap; | |
115 | ap.SetLineColor(fM->fGridColor); | |
116 | ap.SetTextColor(fM->fGridColor); | |
117 | TGLVector3 start, end; | |
118 | ||
119 | start.Set(minEta, minPhi, 0); | |
120 | end.Set(maxEta, minPhi, 0); | |
121 | ap.PaintGLAxis(start.CArr(), end.CArr(), fM->fMinEta, fM->fMaxEta, 205); | |
122 | ||
123 | start.Set(maxEta, minPhi, 0); | |
124 | end.Set(maxEta, maxPhi, 0); | |
125 | ap.PaintGLAxis(start.CArr(), end.CArr(), fM->fMinPhi, fM->fMaxPhi, 205); | |
126 | } | |
127 | ||
128 | } | |
129 | } |