The GUI MOVEMENT Command

The MOVEMENT command allows easy ``movement'' within a large image. i.e. The user can zoom-in to a small sub-region of the image, and change the position of the sub-region to move around the image. This is very useful for examining large images. This menu is also obtained by using the IMAGE command from with the ``KEYBOARD'' menu. The MOVEMENT sub-menu is shown in Figure 3, Page .

The commands available are:

EXIT: Exit sub-menu and return to calling menu.

L-TOP: Move to the top left-hand corner of the current defined data image.

TOP: Move to top of the current defined data image.

R-TOP: Move to the top right-hand corner of the current defined data image.

OPTIONS: Enter the graphical style control OPTIONS sub-menu (see Section 5.5, Page ).

?: List of commands with brief description.

L-UP: Move left and upwards. The centre of the displayed sub-region will move to the top left-hand corner, provided the data is defined.

UP: Move upwards. The centre of the displayed sub-region will move to the top edge, provided the data is defined.

R-UP: Move right and upwards. The centre of the displayed sub-region will move to the top right-hand corner, provided the data is defined.

ZOOM IN: Zoom in to a new, smaller sub-region by interactive graphical coordinate clicking.

FAR-LEFT: Move to the left edge of the current defined data image.

LEFT: Move left. The centre of the displayed sub-region will move to the left edge, provided the data is defined.

CENTRE: Move to the centre of the defined data image.

RIGHT: Move right. The centre of the displayed sub-region will move to the right edge, provided the data is defined.

FAR-RIGHT: Move to the right edge of the current defined data image.

UN-ZOOM: Make the ROI bigger, symmetrically about the existing ROI if possible. The size is increase by 50 pixels or by 50%; whichever is the larger.

L-DOWN: Move left and downwards. The centre of the displayed sub-region will move to the lower left-hand corner, provided the data is defined.

DOWN: Move downwards. The centre of the displayed sub-region will move to the lower edge, provided the data is defined.

R-DOWN: Move right and downwards. The centre of the displayed sub-region will move to the lower right-hand corner, provided the data is defined.

DISPLAY: Enter the DISPLAY sub-menu which contains a variety of alternative graphics display styles (see Section 5.4, Page ).

FULL: Set the ROI to be the whole of the defined data.

L-BOTTOM: Move to the bottom left-hand corner of the current defined data image.

BOTTOM: Move to lower edge of the current defined data image.

R-BOTTOM: Move to the lower right-hand corner of the current defined data image.

PRINT: Save the currently defined graphics as a PostScript file.

It should be noticed that the menu movement commands are arranged in a cross. The position in the cross corresponds to the affect the command has in moving within the image.