hi..i'm facing some problem to draw morh's circle by using opengl in Borland C++.. i'm able to draw 3 circles which is 2 small circle "in" 1 big circle..but may i know tat can i insert a formula into openGL to find out the radius for these 3 circle automatically? until now, wat i can do is juz change the radius manually..i'm trying to solve a stress transformation problem by using mohr's circle method..
