AddSurface

NAME

AddSurface - add surface
SYNOPSIS

AddSurface expr ( vdw | solvent | contact ) expr
    ( dots | shaded ) ( fast | safe )
DESCRIPTION

Add a surface for the selected atoms. The precision (density of the dots) depends on DrawPrec.

The first argument is the radius of the atoms, you will normally not change the default value 'vdw'.

The second argument gives the type of surface:

    vdw: van der Waals surface
    solvent: surface given by the center
        of spheres (solvent) touching the atoms
    contact: contact surface (Richards)
The third argument gives the solvent radius for solvent and contact surfaces.

The fourth argument gives the type of surface, dots or a solid, shaded surface can be selected.

The fifth argument is only used for contact dot surfaces. If it is set to 'safe', the algorithm will always produce correct results. If it set to 'fast', it will run around 3 times faster, but the resulting surfaces have holes in some cases.

Depending on the precision, shaded surfaces can use a lot of memory. If the machine runs out of memory, the program may crash occasionally.

This command supports groups for shaded surfaces, the resulting surface will belong to the first group member.

EXAMPLE

AddSurface vdw contact 1.4 dots safe
SEE ALSO

SelectAtom, RadiusAtom, DrawPrec, Group, ColorPrim, RemovePrim

DATE

960411


Reto Koradi, kor@mol.biol.ethz.ch