Hi everyone. The problem is as follows:

I have a line drawn between two vertices and I would like to rotate a gluCylinder so that it is pointing in the same direction (parallel to the line).

I have used the vertex coordinates of the line to calculate the components of a vector and I have calculated the magnitude of this vector (which is the length of the line).

For example: vector = (dx/length, dy/length, dz/length)

With only this information, vector components and magnitude, is it possible to use glRotate to rotate the gluCylinder to match the orientation of the line?

Thanks for any help.