Prototypes for the several common point groups

Point Groups

Cn Groups 
C2v 
C3v 
C4v 

Dnd Groups 
D2d 
D3d 
D4d

Dnh Groups 
D2h 
D3h 
D4h 
D5h 
D6h 

Cubic Groups 
Td 
Oh 
 
 

Clicking on a particular group will send you to a Java applet which allows you to view a prototype object having the symmetry of the group. By draging the mouse (holding the left button down) you can rotate the object in any direction. If you release the left mouse button while moving the object it continues to spin as long as you keep the mouse pointer in the Java window (this takes a little practice). If you drag downwards with the right mouse button you start erasing the object. The first to go are the coordinate axes so you can get rid of them if you would like.

All these Java applets were constructed using LiveGraphics3D and Mathematica