loon: TridAnaglyphGLFrame Class Reference

00026   : TridGLFrame( tp, parent, tc, min, max )
00027 {
00028   //
00029   // 'scale' is the way to scale OpenGL units to window size.  This is a course control,
00030   // overridden by the user.
00031   //
00032   // Min/max x/y are not limits for drawing, but rather limits to how far the POV center can be moved.
00033   // These should compare roughly with the drawable area.
00034   // 
00035   //
00036   fEyeSpace = eyespace;
00037 
00038   // Do my own setup.
00039   SetupOpenGL();
00040 
00041   cout << "TridAnaglyphGLFrame constructor." << endl;
00042 }

00046 {
00047   cout << "TridAnaglyphGLFrame destructor." << endl;
00048 }

00035 { fEyeSpace = TMath::Sign(eyespace,fEyeSpace); Update(); };

00098 {
00099   // Adjust perspective for the true width.
00100   gluPerspective(30.0f,(GLfloat)fDrawContext->fWidth/(GLfloat)fDrawContext->fHeight,0.1f,100.0f);
00101 }

00106 {
00107   // Clip the POV so it conforms to limits.
00108   NormalizeAndClipPOV();
00109 
00110    // Need to manipulate the ModelView matrix to move our model around.
00111   glMatrixMode(GL_MODELVIEW);
00112   
00113   // Reset to 0,0,0; no rotation, no scaling.
00114   glLoadIdentity(); 
00115   
00116   // Pull back so we can look at it.
00117   glTranslatef(0.0f,0.0f,-fPOV.GetDist());
00118   
00119   // Add eyespace
00120   if(fWhichEye==0)
00121     glTranslatef(-fEyeSpace*0.5, 0.0f,0.0f);
00122   else
00123     glTranslatef( fEyeSpace*0.5, 0.0f,0.0f);
00124   
00125     
00126   // Rotate to our view.
00127   glRotatef(fPOV.GetTheta(),1.0f,0.0f,0.0f); // Rotate to elevation.
00128   if(fPOV.GetPhi()!=0)
00129     glRotatef(fPOV.GetPhi()  ,0.0f,1.0f,0.0f); // Rotate to side
00130   
00131   // Move to our viewpoint.
00132   glTranslatef(-fPOV.GetX(), -fPOV.GetY(), -fPOV.GetZ());  // Move to our viewpoint.
00133   
00134   TVector3 rightdir(-1,0,0); // If no rotation, right is -x
00135   rightdir.Rotate(-fPOV.GetPhi()*TMath::Pi()/180., // phi in radians. 
00136                    TVector3(0,1,0)); // Rotate about y axis
00137 
00138   // rightdir *= fEyeSpace*0.5;
00139   // if(fWhichEye==0)
00140   //  glTranslatef( rightdir.x(),rightdir.y(),rightdir.z() );
00141   // else 
00142   //  glTranslatef(-rightdir.x(),-rightdir.y(),-rightdir.z());
00143 
00144 }

00053 {
00054   // Clears and redraws the OpenGL viewport.
00055   struct timeval timestart,timeend;
00056   gettimeofday(&timestart,0);
00057 
00058   // Unsure that our window is the current one for OpenGL.
00059   // (This call must be atomic!)
00060   glXMakeCurrent(fDrawContext->fDisplay, fDrawContext->fWindow, fDrawContext->fglxContext);
00061   glViewport(0,0,fWidth,fHeight);
00062   ClearViewport();      // Wipe blank. (Could be later, but we are double-buffering.)
00063 
00064   glEnable(GL_BLEND);
00065   glBlendFunc(GL_ONE,GL_ONE);
00066  
00067   fWhichEye = 0;
00068   glColorMask(GL_TRUE, GL_FALSE, GL_FALSE, GL_TRUE); // filter out red  (blue eye)
00069   TransformToPOV();     // Set the cmera in world coordinates
00070   SetupOptions();       // Change OpenGL options
00071   SetupLighting();      // Put in light sources
00072   DrawObjects();        // Draw the Sketches
00073   DrawHUD();            // Put on the overlay.
00074 
00075   glClear(GL_DEPTH_BUFFER_BIT);
00076   glEnable(GL_BLEND);
00077   glBlendFunc(GL_ONE,GL_ONE);
00078 
00079   fWhichEye = 1;
00080   glColorMask(GL_FALSE, GL_FALSE, GL_TRUE, GL_TRUE); // filter out blue (red eye)
00081   TransformToPOV();     // Set the cmera in world coordinates
00082   SetupOptions();       // Change OpenGL options
00083   SetupLighting();      // Put in light sources
00084   DrawObjects();        // Draw the Sketches
00085   DrawHUD();            // Put on the overlay.
00086 
00087   glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE); // filter out nothing
00088 
00089   glFlush();            // Send commands to X server
00090   SwapBuffers();
00091   gettimeofday(&timeend,0);
00092   
00093   fFrameTime = (timeend.tv_sec - timestart.tv_sec) +
00094     (timeend.tv_usec - timestart.tv_usec) * 0.000001;
00095 }


Public Member Functions
	TridAnaglyphGLFrame (TridPage tp, TGWindow &parent, TridControl tc, double eyespace=1, const TridPOV &min=kTridPOV_DefaultRangeLow, const TridPOV &max=kTridPOV_DefaultRangeHigh)
virtual	~TridAnaglyphGLFrame ()
virtual void	Update ()
virtual void	TransformToPOV ()
virtual void	SetupProjection ()
virtual void	SetEyespace (double eyespace)
Protected Attributes
double	fEyeSpace
Int_t	fWhichEye

TridAnaglyphGLFrame Class Reference

Public Member Functions

Protected Attributes

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation