/**
* draw_dodecahedron:
* @solid: TRUE if the dodecahedron should be solid.
*
* Renders a dodecahedron centered at the modeling coordinates
* origin with a radius of the square root of 3.
*
**/
void
draw_dodecahedron (gboolean solid)
{
if (solid)
dodecahedron (GL_TRIANGLE_FAN);
else
dodecahedron (GL_LINE_LOOP);
}
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glEnable(GL_DEPTH_TEST);
glEnable(GL_CULL_FACE);
glLoadIdentity();
//view angle
if (mode == 0) //rotation for ortho mode
{
glRotatef(ph, 1,0,0);
glRotatef(th, 0,1,0);
glScaled(0.4,0.4,0.4);
}
else if (mode == 1) //rotation for perspective mode
{
ex = Sin(-th)*Cos(ph)*8;
ey = Sin(ph)*8;
ez = Cos(-th)*Cos(ph)*8;
gluLookAt(ex,ey,ez , 0,0,0 , 0,Cos(ph),0);
//glScaled(0.3,0.3,0.3);
}
else //mode == 2 // rotation and movement for FP mode
{ // occur in keyboard & special
vx = ex - Sin(th)*Cos(ph); // here we simply update
vy = ey - Sin(ph); // location of view target
vz = ez - Cos(th)*Cos(ph);
gluLookAt(ex,ey,ez , vx,vy,vz , 0,Cos(ph),0);
}
sphere(0, 0, 0, 1.5*r, 0.5); //Jupiter
glPushMatrix();
glRotated(r/2, 0,1,0);
cube(1, 0, 0, r, 0.25); //IO
glPopMatrix();
glPushMatrix();
glRotated(r/4, 0,1,0);
octahedron(-2, 0, 0, 4.0/3.0*r, 0.25); //Europa
glPopMatrix();
glPushMatrix();
glRotated(r/8, 0,1,0);
dodecahedron(3, 0, 0, -1.125*r, 0.25); //Ganymede
glPopMatrix();
glPushMatrix();
glRotated(r/18.4, 0,1,0);
icosahedron(4, 0, 0, 0.75*r, 0.25); //Callisto
glPopMatrix();
r = glutGet(GLUT_ELAPSED_TIME)*rate;
r = fmod(r, 360*24*18.4);
glFlush();
glutSwapBuffers();
}
void APIENTRY
glutSolidDodecahedron(void)
{
dodecahedron(GL_TRIANGLE_FAN);
}
/* CENTRY */
void APIENTRY
glutWireDodecahedron(void)
{
dodecahedron(GL_LINE_LOOP);
}
main(int argc, char *argv[])
{
int i,j;
char *s;
char *progname;
int solid = TETRA;
progname = argv[0];
while (--argc > 0 && (*++argv)[0]=='-') {
for (s = argv[0]+1; *s; s++)
switch (*s) {
case 's':
xscale = atof (*++argv);
yscale = atof (*++argv);
zscale = atof (*++argv);
argc -= 3;
break;
case 't':
solid = TETRA;
break;
case 'o':
solid = OCTA;
break;
case 'c':
solid = CUBE;
break;
case 'i':
solid = ICOSA;
break;
case 'd':
solid = DODECA;
break;
default:
usage (progname);
exit (-1);
break;
}
}
switch (solid) {
case TETRA:
tetra();
break;
case OCTA:
octa();
break;
case CUBE:
cube();
break;
case ICOSA:
icosahedron();
break;
case DODECA:
dodecahedron();
break;
default:
exit (-1);
break;
}
write_file();
}
void APIENTRY auxSolidDodecahedron (GLdouble radius)
{
GLdouble center[3] = {(GLdouble)0.0, (GLdouble)0.0, (GLdouble)0.0};
dodecahedron (center, radius/(GLdouble)1.73, GL_POLYGON);
}
/* Render wire frame or solid dodecahedra. If no display list with
* the current model size exists, create a new display list.
*/
void APIENTRY auxWireDodecahedron (GLdouble radius)
{
GLdouble center[3] = {(GLdouble)0.0, (GLdouble)0.0, (GLdouble)0.0};
dodecahedron (center, radius/(GLdouble)1.73, GL_LINE_LOOP);
}
void
glutSolidDodecahedron(void)
{
dodecahedron(GL_TRIANGLE_FAN);
}
void
glutWireDodecahedron(void)
{
dodecahedron(GL_LINE_LOOP);
}