2 IMAGE_MAP
Keyword: map images
File: image_map.txt
Last Modified: 24-jan-97

"IMAGE_MAP" menu block enables you to create and modify images of
maps.  Complete block appears on the page 6.

The IMAGE_MAP menu block is loaded with the command
"<MAIN_CMDS:load_image_map.com".  It includes some default variable
setups as active map (1), box sizes (12 grid points) and contouring
level (1.0).  These values can be later modified with the MAP_ACT?,
MAP_BOX and MAP_CONT.

See also the "IMAGE MAP" commands in "MAIN_MENU:image.txt".

3 MAP_ACT?

Defines active map ("MAIN_CMDS:make_map_active.cmds").

3 MAP_CONT

Defines the contourting level for a map presenation.

"MAIN_CMDS:image_map_contour.cmds"

3 MAP_BOX

Defines box in grid frm the center in which the active map will be
drawn.

"MAIN_CMDS:image_map_box.cmds"

3 MAP_ON

Enable  active map re_drawal (using "RE_MAP" item or pressing "r").

"MAIN_CMDS:image_map_on.cmds"

3 MAP_OFF

Disables active map re_drawal.  The image stays as it is, it can
however still be included or removed from the display list.

"MAIN_CMDS:image_map_off.cmds"

3 MAP_LINE

Creates a line presentation of map, contoured along X, Y and Z axis,

"MAIN_CMDS:image_map_lines.cmds"

3 MAP_STIC

Creates stick presentation of map.

"MAIN_CMDS:image_map_sticks.cmds"

3 MAP_X-AX

Draws lines or sticks along X-AXIS.

"MAIN_CMDS:image_map_x-ax.cmds"

3 MAP_Y-AX

Draws lines or sticks along Y-AXIS.

"MAIN_CMDS:image_map_y-ax.cmds"

3 MAP_Z-AX

Draws lines or sticks along Z-AXIS.

"MAIN_CMDS:image_map_z-ax.cmds"

3 MAP_AREA

Creates a polygonal surface presentation of the active map.

"MAIN_CMDS:image_map_area.cmds"

3 SHOW_MAP

The information about the active map.

"MAIN_CMDS:image_map_show.cmds"

3 MAP_MASK
Keyword: map mask, envelope

Creates a mask (envelope) around the "active" atoms using a cushion
of 5 grid points around the currently active map "MAP_ACT?".

The default mask creation method is based on the assumption that
atoms lie within peaks of electron density and that their density
spreads as long as the gradient is down hill.  As soon as it goes up
it is assumed that such grid points belong to some other peak.

The macro "MAIN_CMDS:image_map_mask.cmds" contains the commands.