EVE/Alieve/TPCSector3DGL.cxx

   1 // $Header$
   2
   3 #include "TPCSector3DGL.h"
   4 #include <Alieve/TPCSector3D.h>
   5
   6 #include <Reve/BoxSetGL.h>
   7
   8 #include <TGLRnrCtx.h>
   9 #include <TGLIncludes.h>
  10
  11 using namespace Reve;
  12 using namespace Alieve;
  13
  14 //______________________________________________________________________
  15 // TPCSector3DGL
  16 //
  17
  18 ClassImp(TPCSector3DGL)
  19
  20 TPCSector3DGL::TPCSector3DGL() :
  21   TGLObject(),
  22   fSector(0), fBoxRnr(0),
  23   fRTS(0)
  24 {
  25   // fDLCache = false; // Disable display list.
  26 }
  27
  28 TPCSector3DGL::~TPCSector3DGL()
  29 {
  30   delete fBoxRnr;
  31 }
  32
  33 /**************************************************************************/
  34
  35 Bool_t TPCSector3DGL::SetModel(TObject* obj, const Option_t* /*opt*/)
  36 {
  37   if(SetModelCheckClass(obj, Alieve::TPCSector3D::Class())) {
  38     fSector = (TPCSector3D*) fExternalObj;
  39     if(fBoxRnr == 0) {
  40       fBoxRnr = new BoxSetGL;
  41       fBoxRnr->SetModel(&fSector->fBoxSet);
  42     }
  43     return kTRUE;
  44   }
  45   return kFALSE;
  46 }
  47
  48 void TPCSector3DGL::SetBBox()
  49 {
  50   SetAxisAlignedBBox(((TPCSector3D*)fExternalObj)->AssertBBox());
  51 }
  52
  53 /**************************************************************************/
  54
  55 void TPCSector3DGL::DirectDraw(TGLRnrCtx & rnrCtx) const
  56 {
  57   // printf("TPCSector3DGL::DirectDraw Style %d, LOD %d\n", rnrCtx.Style(), rnrCtx.LOD());
  58
  59   if(fRTS < fSector->fRTS) {
  60     fSector->UpdateBoxes();
  61     fRTS = fSector->fRTS;
  62   }
  63
  64   Bool_t hasData = (fSector->GetSectorData() != 0);
  65
  66   if(hasData)
  67     fBoxRnr->Render(rnrCtx);
  68
  69   glPushAttrib(GL_CURRENT_BIT | GL_POINT_BIT | GL_ENABLE_BIT);
  70   glDisable(GL_LIGHTING);
  71   UChar_t col[4];
  72
  73   if(hasData && fSector->fPointSetOn) {
  74     glEnable(GL_BLEND);
  75     glEnable(GL_POINT_SMOOTH);
  76     glPointSize(fSector->fPointSize);
  77
  78     glPushClientAttrib(GL_CLIENT_VERTEX_ARRAY_BIT);
  79     glEnableClientState(GL_VERTEX_ARRAY);
  80
  81     const Reve::PointSetArray& psa = fSector->fPointSetArray;
  82     for(Int_t b=0; b<psa.GetNBins(); ++b) {
  83       Reve::PointSet* ps = psa.GetBin(b);
  84       if(ps->Size() > 0) {
  85         ColorFromIdx(ps->GetMarkerColor(), col);
  86         glColor4ubv(col);
  87
  88         glVertexPointer(3, GL_FLOAT, 0, ps->GetP());
  89         glDrawArrays(GL_POINTS, 0, ps->Size());
  90       }
  91     }
  92
  93     glPopClientAttrib();
  94   }
  95
  96   if(fSector->fRnrFrame) {
  97     ColorFromIdx(fSector->fFrameColor, col);
  98     glColor4ubv(col);
  99
 100     if(fSector->fRnrInn)
 101       DrawSegmentFrame(TPCSectorData::GetInnSeg(),  0, 2);
 102     if(fSector->fRnrOut1)
 103       DrawSegmentFrame(TPCSectorData::GetOut1Seg(), 2, 1);
 104     if(fSector->fRnrOut2)
 105       DrawSegmentFrame(TPCSectorData::GetOut2Seg(), 2, 2);
 106   }
 107
 108   glPopAttrib();
 109 }
 110
 111 void TPCSector3DGL::DrawSegmentFrame(const TPCSectorData::SegmentInfo& s,
 112                                      Int_t botExtraPads, Int_t topExtraPads) const
 113 {
 114   Float_t xl, xh, yl, yh, zl, zh;
 115   xl = 0.5*s.GetPadWidth()*(TPCSectorData::GetNPadsInRow(s.GetFirstRow()) + botExtraPads);
 116   xh = 0.5*s.GetPadWidth()*(TPCSectorData::GetNPadsInRow(s.GetLastRow())  + topExtraPads);
 117   yl = s.GetRLow();
 118   yh = yl + s.GetNRows()*s.GetPadHeight();
 119   zl = 0;
 120   zh = TPCSectorData::GetZLength();
 121
 122   glBegin(GL_LINE_LOOP);
 123   glVertex3f( xl, yl, zl);  glVertex3f( xh, yh, zl);
 124   glVertex3f(-xh, yh, zl);  glVertex3f(-xl, yl, zl);
 125   glEnd();
 126   glBegin(GL_LINE_LOOP);
 127   glVertex3f( xl, yl, zh);  glVertex3f( xh, yh, zh);
 128   glVertex3f(-xh, yh, zh);  glVertex3f(-xl, yl, zh);
 129   glEnd();
 130   glBegin(GL_LINES);
 131   glVertex3f( xl, yl, zl);  glVertex3f( xl, yl, zh);
 132   glVertex3f( xh, yh, zl);  glVertex3f( xh, yh, zh);
 133   glVertex3f(-xh, yh, zl);  glVertex3f(-xh, yh, zh);
 134   glVertex3f(-xl, yl, zl);  glVertex3f(-xl, yl, zh);
 135   glEnd();
 136 }