- //code to draw ticks as small circles
- void drawOneCircle(float x1, float y1, float r)
- {
- glBegin(GL_LINE_LOOP); // Use polygon to approximate a circle
- for (int count=0; count<25; count++) {
- float cosine = r * cos(count * 2 * SG_PI/10.0);
- float sine = r * sin(count * 2 * SG_PI/10.0);
- glVertex2f(cosine+x1, sine+y1);
- }
- glEnd();
- }