Le source: DeformationsVisualisation.cpp
/* Auteur: Nicolas JANEY */
/* nicolas.janey@univ-fcomte.fr */
/* Fevrier 2002 */
/* Les deformations liees */
/* a la visualisation */
/* en perspective */
#include <stdio.h>
#include <stdlib.h>
#include <GL/glut.h>
#include <GL/gl.h>
#include <GL/glu.h>
#include "ModuleCouleurs.h"
#include "ModuleManipulateur.h"
#include "ModuleMenus.h"
static int ww ;
static int hh ;
static float ouverture = 1.0F ;
static float fact = 1.0F ;
void projection(void) {
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(30.0*ouverture*fact,(double) ww/hh,0.1,100.0);
glMatrixMode(GL_MODELVIEW);
glTranslatef(0.0F,0.0F,-10.0F/ouverture);
setManipulateurDistance(10.0F/ouverture);
}
void glutSolidBox(float dx,float dy,float dz,int n) {
glPushMatrix();
glBegin(GL_QUADS);
{ for ( int i = 0 ; i < n ; i++ ) {
float xi = -dx/2+i*dx/n;
float xf = xi+dx/n;
for ( int j = 0 ; j < n ; j++ ) {
float yi = -dy/2+j*dy/n;
float yf = yi+dy/n;
glNormal3f(0.0F,0.0F,1.0F);
glVertex3f(xi,yi,dz/2);
glVertex3f(xi,yf,dz/2);
glVertex3f(xf,yf,dz/2);
glVertex3f(xf,yi,dz/2);
glNormal3f(0.0F,0.0F,-1.0F);
glVertex3f(xi,yi,-dz/2);
glVertex3f(xi,yf,-dz/2);
glVertex3f(xf,yf,-dz/2);
glVertex3f(xf,yi,-dz/2); } } }
{ for ( int i = 0 ; i < n ; i++ ) {
float xi = -dx/2+i*dx/n;
float xf = xi+dx/n;
for ( int j = 0 ; j < n ; j++ ) {
float zi = -dz/2+j*dz/n;
float zf = zi+dz/n;
glNormal3f(0.0F,1.0F,0.0F);
glVertex3f(xi,dy/2,zi);
glVertex3f(xi,dy/2,zf);
glVertex3f(xf,dy/2,zf);
glVertex3f(xf,dy/2,zi);
glNormal3f(0.0F,-1.0F,0.0F);
glVertex3f(xi,-dy/2,zi);
glVertex3f(xi,-dy/2,zf);
glVertex3f(xf,-dy/2,zf);
glVertex3f(xf,-dy/2,zi); } } }
{ for ( int i = 0 ; i < n ; i++ ) {
float yi = -dy/2+i*dy/n;
float yf = yi+dy/n;
for ( int j = 0 ; j < n ; j++ ) {
float zi = -dz/2+j*dz/n;
float zf = zi+dz/n;
glNormal3f(1.0F,0.0F,0.0F);
glVertex3f(dx/2,yi,zi);
glVertex3f(dx/2,yi,zf);
glVertex3f(dx/2,yf,zf);
glVertex3f(dx/2,yf,zi);
glNormal3f(-1.0F,0.0F,0.0F);
glVertex3f(-dx/2,yi,zi);
glVertex3f(-dx/2,yi,zf);
glVertex3f(-dx/2,yf,zf);
glVertex3f(-dx/2,yf,zi); } } }
glEnd();
glPopMatrix();
}
void display(void) {
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
glPushMatrix();
projection();
glPushMatrix();
manipulateurSouris();
manipulateurClavier();
glPushMatrix();
glTranslatef(-1.9F,1.4F,0.0F) ;
glRotatef(30.0F,0.0F,1.0F,1.0F);
glMaterialfv(GL_FRONT,GL_DIFFUSE,couleurJaune());
glutSolidBox(1.7F,1.6F,1.2F,30);
glPopMatrix();
glPushMatrix();
glTranslatef(1.9F,1.4F,0.0F) ;
glRotatef(25.0F,1.0F,0.0F,0.0F);
glMaterialfv(GL_FRONT,GL_DIFFUSE,couleurRouge());
glutSolidTorus(0.4,0.7,36,36);
glPopMatrix();
glPushMatrix();
glTranslatef(1.9F,-1.4F,0.0F) ;
glMaterialfv(GL_FRONT,GL_DIFFUSE,couleurBleu());
glutSolidSphere(1.1,36,36);
glPopMatrix();
glPushMatrix();
glTranslatef(-1.9F,-1.4F,0.0F) ;
glRotatef(40.0F,1.0F,1.0F,0.0F);
glMaterialfv(GL_FRONT,GL_DIFFUSE,couleurVert());
glutSolidCone(1.0,1.5,36,36);
glPopMatrix();
glPopMatrix();
glPopMatrix();
glFlush();
glutSwapBuffers();
}
void myinit(void) {
glShadeModel(GL_SMOOTH);
glDepthFunc(GL_LESS) ;
glEnable(GL_DEPTH_TEST);
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
glEnable(GL_AUTO_NORMAL);
glEnable(GL_NORMALIZE);
glLightfv(GL_LIGHT0,GL_SPECULAR,couleurBlanc());
glMaterialfv(GL_FRONT,GL_SPECULAR,couleurBlanc());
glMaterialf(GL_FRONT,GL_SHININESS,50);
}
void reshape(int w, int h) {
glViewport(0,0,w,h);
ww = w ;
hh = h ;
}
void key(unsigned char key,int x,int y) {
if ( keyManipulateur(key,x,y) )
glutPostRedisplay();
else
switch ( key ) {
case 'o' : fact *= 1.02F;
glutPostRedisplay();
break;
case 'O' : fact /= 1.02F;
glutPostRedisplay();
break;
case 45 : ouverture *= 1.02F ;
glutPostRedisplay();
break;
case 43 : ouverture /= 1.02F ;
glutPostRedisplay();
break; }
}
int main(int argc,char **argv) {
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_RGBA|GLUT_DEPTH|GLUT_DOUBLE);
glutInitWindowSize(280,210);
glutInitWindowPosition(50,50);
glutCreateWindow("Deformation liee a la perspective");
myinit();
creationMenuBasique();
glutKeyboardFunc(key);
glutSpecialFunc(specialBasique);
glutMotionFunc(motionBasique);
glutMouseFunc(sourisBasique);
glutReshapeFunc(reshape);
glutDisplayFunc(display);
glutMainLoop();
return(0);
}
RETOUR