-----Protein Structure Visualization System-----

EXECUTION

1) Provide the configuration file ".3dview" at the current directory or
those in $PATH.

2) The statements in 3D-Talk is feeded to 3dview through standard-in,
as below:

	3dview < 4HHB.3d

3dview displays and moves the graphic objects described in 3D-Talk.
The mouse operation is also available to move the objects in the
window.


3) Proview generates 3D-Talk statements from PDB(Protein Data Bank)
file.  And, 3dview visualizes the statements.  This is carried out
simply by unix's pipe mechanism, as below.

	proview 4HHB.pdb | 3dview

4) Proview has the following options:

	-r	Generate a ribbon which represents the main chain topology.
	-m	Generate only the main chain atoms.
	-h	Helices are represented by spiral ribbons.
	-s	Strands are represented by ribbons with an arrow.
	-t 	Turns are represented by ribbons.
	-O	All secondary structures are generated.
