#include #include #include #include //#include /*#include #include */ static GLuint theGred; float dd,n,p,l; /* Izrisi gred */ double gred() { int i,k; double x,y,z,xn,yn,zn,a,b,c,r,r1,va[3],vb[3],kot,rp,z1,x1,y1,iz,l,ha,hb,nadmera,korak,sf,s,j,t,twopi; double zkot; printf ("Dobrodosli v programu za 3D izris trapezne navojne gredi \n"); printf ("Podaj naslednje podatke za izris gredi\n"); printf ("Velikost trapeznega navoja (60) = "); scanf("%f",&dd); printf ("Dolzina ostalega dela gredi (50) = "); scanf("%f",&l); printf ("Korak trapeznega navoja (15) = "); scanf("%f",&p); printf ("Stevilo ovojev (30) = "); scanf("%f",&n); nadmera = 25/100; kot= 0.1; ha = 0.5 * p; hb = ha + nadmera; r = dd/2; r1 = r-hb; b=26/100*(dd-2*r1)/2; a=(p-2*b)/2; c=a; iz=2*p; rp=2; printf ("Izbral si: \n\n"); printf ("Velikost trapeznega navoja je = %f \n", dd); printf ("Visina trapeznega navoja h = %f \n", hb+ha); printf ("Korak navoja je = %f\n", p); printf ("Stevilo ovojev je = %f\n", n); printf ("Skupna dolzina gredi = %f\n", l+n*p); printf ("Prosta mera nadmera = %f\n\n\n", nadmera); printf ("Tipke za manipulacijo objekta \n\n"); printf ("(P) povecava \n"); printf ("(M) pomanjsava \n"); printf ("(C) rotacija okrog x osi \n"); printf ("(V) rotacija okrog y osi \n"); printf ("(Z) rotacija okrog z osi \n"); printf ("(L,J) translacija v x osi \n"); printf ("(U,K) translacija v y osi \n"); printf ("(H,N) translacija v z osi \n"); printf ("(Q) Izhod\n"); //prva vijacnica glBegin(GL_QUAD_STRIP); for (j = 0; j < (n+4)*3.14*2 ; j=j+kot) { x = r*cos(j); y = r*sin(j); z = p/(3.14*2)*j+0.01; x1 = r*cos(j); y1 = r*sin(j); z1 = p/(3.14*2)*j-a-0.01; xn=x; yn=y; zn=0; if(z>=n*p){ z=n*p;} if(z<=0){ z=0;} if(z1<=0){ z1=0;} if(z1>=n*p){ z1=n*p;} if(z1>=n*p){ x=x1; y=y1; zkot=j; j=1000;} glNormal3f(xn,yn,zn); glColor3f(1.0,0.0,0.0); glVertex3f(x,y,z); glNormal3f(xn,yn,zn); glColor3f(1.0,0.0,0.0); glVertex3f(x1,y1,z1); } glEnd(); // druga vijacnica glBegin(GL_QUAD_STRIP); for (j = -7; j < (n+3)*3.14*2; j=j+kot) { x = r*cos(j); y = r*sin(j); z = p*j/(3.14*2)+b; x1 = r1*cos(j); y1 = r1*sin(j); z1 = p*j/(3.14*2); xn=x-x1; yn=y-y1; zn=b; if(z>=n*p){ z=n*p; } if(z<=0){ z=0;} if(z1<=0){ z1=0;} if(z1>=n*p){ z1=n*p;} if(j>=zkot){ x=x1; y=y1; j=1000; } glNormal3f(xn,yn,zn); glColor3f(1.0,0.0,0.0); glVertex3f(x,y,z); glNormal3f(xn,yn,zn); glColor3f(1.0,0.0,0.0); glVertex3f(x1,y1,z1); } glEnd(); //cetrta vijacnica glBegin(GL_QUAD_STRIP); for (j = -7; j < (n+3)*3.14*2; j=j+kot) { x1 = r1*cos(j); y1 = r1*sin(j); z1 = p*j/(3.14*2)+b+c+b; x = r*cos(j); y = r*sin(j); z = p*j/(3.14*2)+b+c; xn=x-x1; yn=y-y1; zn=-b; if(z>=n*p){ z=n*p; } if(z<=0){ z=0; } if(z1<=0){ z1=0; } if(z1>=n*p){ z1=n*p; } if(z1>=p*n){ x=x1; y=y1; j=1000; } glNormal3f(xn,yn,zn); glColor3f(1.0,0.0,0.0); glVertex3f(x,y,z); glNormal3f(xn,yn,zn); glColor3f(1.0,0.0,0.0); glVertex3f(x1,y1,z1); } glEnd(); //tretja vijacnica glBegin(GL_QUAD_STRIP); for (j = -7; j < (n+3)*3.14*2;j=j+kot) { x = r1*cos(j); y = r1*sin(j); z = p/(3.14*2)*j+c+b; x1 = r1*cos(j); y1 = r1*sin(j); z1 = p/(3.14*2)*j+b; xn=x; yn=y; zn=0; if(z>=n*p){ z=n*p; } if(z<=0){ z=0; } if(z1<=0){ z1=0; } if(z1>=n*p){ z1=n*p; } glNormal3f(xn,yn,zn); glColor3f(1.0,0.0,0.0); glVertex3f(x,y,z); glNormal3f(xn,yn,zn); glColor3f(1.0,0.0,0.0); glVertex3f(x1,y1,z1); } glEnd(); //Posnetje robu glBegin(GL_QUAD_STRIP); for (j = 0; j < (n+1)*3.14*2; j=j+kot) { x = r*cos(j); y = r*sin(j); z = 0; x1 = (r-rp)*cos(j); y1 = (r-rp)*sin(j); z1 =-rp; xn=x-x1; yn=y-y1; zn=-rp; glNormal3f(xn,yn,zn); glVertex3f(x,y,z); glNormal3f(xn,yn,zn); glVertex3f(x1,y1,z1); } glEnd(); //krog glBegin(GL_QUAD_STRIP); for (j = 0; j<=3*3.14*2 ; j=j+kot) { x = (r-rp)*cos(j); y = (r-rp)*sin(j); z = -rp; x1 = 0; y1 = 0; z1 = -rp; xn=0; yn=0; zn=-p; glNormal3f(xn,yn,zn); glColor3f(1.0,0.0,0.0); glVertex3f(x,y,z); glNormal3f(xn,yn,zn); glColor3f(1.0,0.0,0.0); glVertex3f(x1,y1,z1);} glEnd(); //iztek orodja glBegin(GL_QUAD_STRIP); for (j = 0; j<=3*3.14*2 ; j=j+kot) { x = r1*cos(j); y = r1*sin(j); z = p*n; x1 = x; y1 = y; z1 = p*n+iz; xn=x; yn=y; zn=0; glNormal3f(xn,yn,zn); glColor3f(1.0,0.0,0.0); glVertex3f(x,y,z); glNormal3f(xn,yn,zn); glColor3f(1.0,0.0,0.0); glVertex3f(x1,y1,z1);} glEnd(); //Posnetje ob izteku glBegin(GL_QUAD_STRIP); for (j = 0; j<=3*3.14 ; j=j+kot) { x = r1*cos(j); y = r1*sin(j); z = p*n+iz; x1 = (r+r-r1)*cos(j); y1 = (r+r-r1)*sin(j); z1 = p*n+iz+(r-r1)*2; xn=x; yn=y; zn=-p/2; glNormal3f(xn,yn,zn); glColor3f(1.0,0.0,0.0); glVertex3f(x,y,z); glNormal3f(xn,yn,zn); glColor3f(1.0,0.0,0.0); glVertex3f(x1,y1,z1);} glEnd(); //Nadaljevanje gredi glBegin(GL_QUAD_STRIP); for (j = 0; j<=3*3.14 ; j=j+kot) { x = (r+r-r1)*cos(j); y = (r+r-r1)*sin(j); z = p*n+iz+(r-r1)*2+l; x1 = (r+r-r1)*cos(j); y1 = (r+r-r1)*sin(j); z1 = p*n+iz+(r-r1)*2; xn=x; yn=y; zn=0; glNormal3f(xn,yn,zn); glColor3f(1.0,0.0,0.0); glVertex3f(x,y,z); glNormal3f(xn,yn,zn); glColor3f(1.0,0.0,0.0); glVertex3f(x1,y1,z1);} glEnd(); //krog zaključek gredi glBegin(GL_QUAD_STRIP); for (j = 0; j<=3*3.14 ; j=j+kot) { x = (r+r-r1)*cos(j); y = (r+r-r1)*sin(j); z = p*n+iz+(r-r1)*2+l; x1 = 0; y1 = 0; z1 = p*n+iz+(r-r1)*2+l; xn=0; yn=0; zn=p; glNormal3f(xn,yn,zn); glColor3f(1.0,0.0,0.0); glVertex3f(x,y,z); glNormal3f(xn,yn,zn); glColor3f(1.0,0.0,0.0); glVertex3f(x1,y1,z1); } glEnd(); return (0); } /* Create display list with Gred and initialize state */ double init() { GLfloat mat_diffuse[] = { 0.7, 0.7, 0.7, 1.0 }; GLfloat mat_specular[] = { 1.0, 1.0, 1.0, 1.0 }; GLfloat mat_shininess[] = { 100.0 }; glClearColor (0.0, 0.0, 1.0, 0.0); glMaterialfv(GL_FRONT, GL_DIFFUSE, mat_diffuse); glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular); glMaterialfv(GL_FRONT, GL_SHININESS, mat_shininess); glEnable(GL_LIGHTING); glEnable(GL_LIGHT0); glEnable(GL_DEPTH_TEST); glEnable(GL_AUTO_NORMAL); glEnable(GL_NORMALIZE); theGred = glGenLists (1); glNewList(theGred, GL_COMPILE); gred(); glEndList(); return(0); } /* Clear window and draw Gred */ void display(void) { glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glPushMatrix (); glCallList(theGred); glPopMatrix (); glFlush(); } void reshape(int w, int h) { glViewport(0, 0, (GLsizei) w, (GLsizei) h); glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluPerspective(30, (GLfloat) w/(GLfloat) h, 1.0, 100.0); glMatrixMode(GL_MODELVIEW); glLoadIdentity(); gluLookAt(-1, 1, -1,0, 0, 0, 0, 1, 0); glScalef(1/(1.5*(l+n*p+dd)),1/(1.5*(l+n*p+dd)),1/(1.5*(l+p*n+dd))); glTranslatef(0,0,-n*p/2); glutPostRedisplay(); } /*Transformacije*/ void keyboard(unsigned char key, int x, int y) { switch (key) { case 'c': case 'C': glRotatef(10.,1.0,0.0,0.0); glutPostRedisplay(); break; case 'v': case 'V': glRotatef(10.,0.0,1.0,0.0); glutPostRedisplay(); break; case 'z': case 'Z': glRotatef(10.,0.0,0.0,1.0); glutPostRedisplay(); break; case 'p': case 'P': glScalef(1.1,1.1,1.1); glutPostRedisplay(); break; case 'm': case 'M': glScalef(0.9,0.9,0.9); glutPostRedisplay(); break; case 'l': case 'L': glTranslatef(1,0,0); glutPostRedisplay(); break; case 'j': case 'J': glTranslatef(-1,0,0); glutPostRedisplay(); break; case 'u': case 'U': glTranslatef(0,1,0); glutPostRedisplay(); break; case 'k': case 'K': glTranslatef(0,-1,0); glutPostRedisplay(); break; case 'h': case 'H': glTranslatef(0,0,1); glutPostRedisplay(); break; case 'n': case 'N': glTranslatef(0,0,-1); glutPostRedisplay(); break; case 'q': exit(0); break; } } int main(int argc, char **argv) { glutInitWindowSize(500, 500); glutInit(&argc, argv); glutInitDisplayMode (GLUT_SINGLE| GLUT_RGB | GLUT_DEPTH); glutCreateWindow("Navojna gred"); init(); glutReshapeFunc(reshape); glutKeyboardFunc(keyboard); glutDisplayFunc(display); glutMainLoop(); return 0; }