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Orxan

a guest Apr 21st, 2017 46 Never
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  1. #include<gl/glut.h>
  2. #include<math.h>
  3.  
  4. double tx=0,ty=0,tz=0;
  5. double sx=1,sy=1,sz=1;
  6. double angle=0.0;
  7. void myDisplay(){
  8.     glClear(GL_COLOR_BUFFER_BIT);
  9.     int number = 35;
  10.     float radius = 35;
  11.     float twopi = 3.1452423*2;
  12.     glMatrixMode(GL_MODELVIEW);
  13.     glLineStipple(5, 0xAAAA);
  14.  
  15.     glLoadIdentity();
  16.     glTranslatef(tx,ty,tz);
  17.     glScalef(sx,sy,sz);
  18.     glRotatef(angle,0.0,0.0,1.0);
  19.     gluLookAt(0.0,0.0,100.0, 0.0,0.0,0.0, 0.0,1.0,0.0);
  20.  
  21.         glBegin(GL_QUADS);
  22.             glColor3f(1.0,1.0,1.0);
  23.             glVertex2f(-40.0, 40.0);
  24.             glVertex2f (40.0, 40.0);
  25.             glVertex2f(40.0, -40.0);
  26.             glVertex2f (-40.0, -40.0);
  27.         glEnd();
  28.         glBegin (GL_LINES);
  29.    
  30.     glColor3f(0.0,1.0,0.0);
  31.     glVertex2f(200.0, 100.0);
  32.     glVertex2f (200.0, -100.0);
  33.     glEnd();
  34.    
  35.         glFlush();
  36.  
  37. }
  38.  
  39. void pressToClipp (unsigned char press, int x, int y){
  40. if(press=='c'){
  41.  
  42.     glBegin (GL_LINES);
  43.         glColor3f(0.0,1.0,0.1);
  44.         glVertex2f(150.0, 70.0);
  45.         glVertex2f (-150.0, -70.00);
  46.     glEnd();
  47.     glFlush();
  48.     }
  49.  
  50. }
  51.  
  52. void myReshape(int w,int h){
  53.     glViewport(0,0,(GLsizei)w,(GLsizei)h);
  54.     glMatrixMode(GL_PROJECTION);
  55.     glLoadIdentity();
  56.     gluPerspective(60.0,(GLfloat)w/h,1.0,100.0);
  57.     glMatrixMode(GL_MODELVIEW);
  58.  
  59. }
  60. int main(int argc, char *argv[]){
  61.     glutInit( & argc, argv );
  62.     glutCreateWindow("Clipping Algortihm");
  63.    
  64.     glutDisplayFunc(myDisplay);
  65.     glutKeyboardFunc (pressToClipp);
  66.     glutReshapeFunc(myReshape);
  67.     glutMainLoop();
  68. }
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