Standard Origins and Orientations

3DEM Image Conventions

Tetrahedral Symmetry



Standard orientation:  2-fold axes on x,y,z axes

Standard origin:  intersection of symmetry axis



 Standard Orientation (standard display orientation) Standard Orientation (arbitrary display orientation)
Tetrahedron, Example 1 Example 1 of a tetrahedron showing standard orientation and standard display orientation Example 2 of a tetrahedron showing standard orientation, arbitrary display orientation
Tetrahedron, Example 2 Example 2 of a tetrahedron showing standard orientation and standard display orientation Example 2 of a tetrahedron showing standard orientation, arbitrary display orientation



Back to standard origins/orientations table
  11 Feb 2006