Bone_mask [molecule] [codes] [radii]
This command is used to make a datablock called [mol]_mask that contains coordinate and radii information for use in making a molecular mask. The option requests a set of skeleton codes and the associated radii. Only the specified coded skeleton atoms are used in making the mask datablock. Use the Bone_redefine command to set the desired codes. Computer programs are available to read the mask datablock and generate masks suitable for the A programs [9] or the newer RAVE programs [11].