I have rendered a graph. The z-axis units are fine except id like to rotate them 90 degrees left (-x direction). So that as i rotate my scene the units are facing the correct direction so that they are readable. I know to use glRotatef(), but cant figure the parameters to do this correctly.
Thanx in advance.

I’m not sure exactly what you mean… what axis do you want to rotate around. Try one of these

glRotatef(90, 0, 1, 0);
glRotatef(90, 1, 0, 0);
glRotatef(90, 0, 0, 1);

Thx…i played with those and have the correct rotation now.