/****************
*
* fonction d'affichage du systeme
*
****************/
void display()
{
/* glClearColor (0.0, 0.0, 0.0, 0.0); */
glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
/* si le type de tracé est ligne on desactive l'éclairage */
if(mode==GL_LINE_STRIP)
glDisable(GL_LIGHTING);
/* sinon on réactive l'eclairage */
else
glEnable(GL_LIGHTING);
glLoadIdentity(); /* repere camera */
tbVisuTransform(); /* origine et orientation de la scene */
/* echelle */
glScalef(zoom*eX,zoom*eY,zoom*eZ);
/* centrage de la scene */
/* prise en compte de la boite englobante */
glTranslatef( -(xmin+xmax)/2.0,
-(ymin+ymax)/2.0,
-(zmin+zmax)/2.0);
/* dessin des triangles du MarchingCube */
drawMarchingTetrahedra();
/* envoi des commandes GL */
glFlush();
glutSwapBuffers();
}
void redraw(void)
{
int start, end;
if (reportSpeed) {
start = glutGet(GLUT_ELAPSED_TIME);
}
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glLoadIdentity(); /* repere camera */
tbVisuTransform(); /* origine et orientation de la scene */
glScalef(zoom,zoom,zoom);
glTranslatef( -sx/2., -sy/2., -sz*hz/2.);
drawSlices();
drawSlicesBoundary();
drawIsoCurveZ();
drawIsoCurveX();
drawIsoCurveY();
if (reportSpeed) {
glFinish();
end = glutGet(GLUT_ELAPSED_TIME);
printf("Speed %.3g frames/sec (%d ms)\n", 1000.0/(end-start), end-start);
}
glutSwapBuffers();
}
/**
* This is the display callback function.
* It is called when GLUT determines that the normal plane for the window needs to be redisplayed.
* The entire normal plane region should be redisplayed in response to the callback.
*/
void displayInternal(void)
{
// Effacer tout
glClearColor (0.0, 0.0, 0.0, 0.0);
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // la couleur et le z
glLoadIdentity(); // repere camera
tbVisuTransform(); // origine et orientation de la scene
display( );
glutSwapBuffers();
glutPostRedisplay();
}
//what to do before drawing an image
void display(void)
{
glPushAttrib(GL_ALL_ATTRIB_BITS);//store GL state
// Effacer tout
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // clear image
glLoadIdentity();
tbVisuTransform(); // init trackball
drawFrame( ); //actually draw
glutSwapBuffers();//glut internal switch
glPopAttrib();//return to old GL state
}
// Actions d'affichage
// Ne pas changer
void display(void)
{
glPushAttrib(GL_ALL_ATTRIB_BITS);
// Effacer tout
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // la couleur et le z
glLoadIdentity(); // repere camera
tbVisuTransform(); // origine et orientation de la scene
dessiner( );
glutSwapBuffers();
glPopAttrib();
}
