Trackball-Mode Interaction
First, put the cursor inside the display area. Then:
- To zoom in, press and hold the right mouse button, and drag the cursor upward.
- To zoom out, press and hold the right mouse button, and drag the cursor downward.
- To rotate, press and hold the left mouse button, and drag the cursor in the direction of rotation.
- To rotate around an axis perpendicular to the screen, hold down the Ctrl key, press and hold the left mouse button, and drag the cursor in the direction of rotation.
- To pan, hold down the Shift key, press and hold the left mouse button, and drag the cursor in the
direction of panning.