File: image_map.txt

IMAGE_MAP

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.html.

MAP_ACT?

Defines active map (MAIN_CMDS:make_map_active.cmds).

MAP_CONT

Defines the contourting level for a map presenation.

MAIN_CMDS:image_map_contour.cmds

MAP_BOX

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

MAIN_CMDS:image_map_box.cmds

MAP_ON

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

MAIN_CMDS:image_map_on.cmds

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

MAP_LINE

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

MAIN_CMDS:image_map_lines.cmds

MAP_STIC

Creates stick presentation of map.

MAIN_CMDS:image_map_sticks.cmds

MAP_X-AX

Draws lines or sticks along X-AXIS.

MAIN_CMDS:image_map_x-ax.cmds

MAP_Y-AX

Draws lines or sticks along Y-AXIS.

MAIN_CMDS:image_map_y-ax.cmds

MAP_Z-AX

Draws lines or sticks along Z-AXIS.

MAIN_CMDS:image_map_z-ax.cmds

MAP_AREA

Creates a polygonal surface presentation of the active map.

MAIN_CMDS:image_map_area.cmds

SHOW_MAP

The information about the active map.

MAIN_CMDS:image_map_show.cmds

MAP_MASK

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.