XPost: comp.os.ms-windows.programmer.win32, alt.windows7.general   
   From: address@is.invalid   
      
   Hello all,   
      
   I've used OpenGL to create a basic 3D coordinate system (which works) with   
   Z=Up, X=to the right and Y=into the screen.   
      
   The thing is that I've picked rotation directions and starting axis for   
   those rotations in a "I need it to work, and this does" way. :-|   
      
   Now I'm at a point where I want to make it conform to a/the standard, and   
   have done a few websearches for 3D coodinate systems and their specifics.   
      
   Alas, although I've been able to find pictures of the Y=Up and Z=Up   
   coordinate systems and even a Z=up, rotation=anti-clockwise description   
   (right-hand rule), I could not find anything more - which suprises me to be   
   honest. :-|   
      
      
      
   What I'm looking for, for both the Y=up and Z=Up coordinate systems :   
      
   rotation directions for all three axis/planes, as well as starting axis*.   
      
   * Although I've found that for Z=Up the rotation direction is   
   counter-clockwise I do not know at with axis it starts: +X ?  +Y ?   
    Perhaps -X or -Y ?.  No idea. :-(   
      
   Regards,   
   Rudy Wieser   
      
   --- SoupGate-DOS v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)