resizing my function

OpenGL OpenGL: Basic Coding
1

When this function is called how do I change the size to make larger.

static void torus(int numc, int numt)
{
float lx=0.0f,ly=-1.0f,lz=-1.0f;
int i, j, k;
double s, t, x, y, z, twopi;

twopi = 2 * PI_;
for (i = 0; i < numc/3; i++) {
glBegin(GL_QUAD_STRIP);
glPushMatrix();
for (j = 0; j <= numt; j++) {
for (k = 1; k >= 0; k–) {
s = (i + k) % numc + 0.5;
t = j % numt;

        x = (1+.1*cos(s*twopi/numc))*cos(t*twopi/numt); 
        y = (1+.1*cos(s*twopi/numc))*sin(t*twopi/numt); 
        z = .1 * sin(s * twopi / numc/2); 
        //changeSize(0,15);
         //glutReshapeFunc(changeSize); 
        glVertex3f(x, y +move_turus, z); 
       
        
     } 
  } 
  glPopMatrix ();
  glEnd();

}
}

2

When this function is called how do I change the size to make larger or smaller

3

What are you doing there with glutReshapeFunc? That’s typically specified once and only once in a program and takes a function that handles resize enters like window drags or resizes.

Is there a reason glScale won’t work for you?

4

I have commented out the glutReshapeFunc because it did not work.

5

<-repeat