How does zooming, panning and rotating work?

Question

Using OpenGL I\'m attempting to draw a primitive map of my campus.

Can anyone explain to me how panning, zooming and rotating is usually implemented?

For exa

Answer 1

All of these "actions" can be achieved using model-view matrix transformation functions. You should read about glTranslatef (panning), glScalef (zoom), glRotatef (rotation). You also should need to read some basic tutorial about OpenGL, you might find this link useful.