CONSTRUCT SPACE WORK-BOX Control

            

This command is used to define the work-box space and its use.

Control Comments

CHECKING OFF Sets the severity level of coordinate checking

WARN against the work-box (see note 1). ERROR

SIZE AUTOMATIC Sets mode of operation and the size of the

SET work-box (see note 2). Coords

Coords Sets the size of the work-box (see note 3).

Notes:

1.

Coordinate checking
The coordinates of defined or generated points may be checked against the work-box. If CONSTRUCT SPACE WORK-BOX CHECKING WARN is selected then points defined or generated having coordinates outside the work-box will cause a warning message to be generated. This is the default. If ...... WORK-BOX CHECKING ERROR is selected then points defined or generated having coordinates outside the work-box will cause an error condition and the points will not be created. Coordinate checking is switched off entirely with the ...... WORK-BOX CHECKING OFF command.

2.

Mode of operation
If coordinate checking against the workbox is switched to WARN or OFF then the CONSTRUCT SPACE WORK-BOX SIZE AUTOMATIC command will cause the work-box to be sized automatically after the generation of each new point. This is the default mode of operation. The work-box can then be fixed at its current size by the CONSTRUCT SPACE WORK-BOX SIZE SET command.

3.

Setting the work-box size
The size of the work-box can be set by giving the coordinates for the corner of the box having maximum values for x, y, and z; optionally followed by the coordinates of the corner having minimum values for x, y, and z. If only one value is given this is used as the maximum for all three directions. If minimum values are not specified they are taken as = 0. The dimensions of the work box may be changed at any time during the definition of a model.

The diagonal of the work-box may be used to set the tolerance for checking point coincidence with the CONSTRUCT SPACE TOLERANCE RELATIVE command.

The work-box may be displayed using the command EYE LOCATE within FEMGEN .

Examples:

1.

CONSTRUCT SPACE WORK-BOX 12

Constructs a work-box of [0,0,0] to [12,12,12]

2.

CONSTRUCT SPACE WORK-BOX 5 5 7 -3 1 0

Constructs a work-box of [-3 1 0] to [5 5 7]

3.

CONSTRUCT SPACE WORK-BOX SET

The work-box is fixed at its current size.

See also the following commands

'EYE LOCATE'
'CONSTRUCT SPACE TOLERANCE'