View Scale

VSCA controls the scale of the VIEW contents. The scale is normally set automatically to a value which makes sure that the VIEW contents fit comfortably within the VIEW boundary (refer to Additional AUTO Commands for further information), but can be changed if necessary, for example,

VSCA 0.05

The larger the VSCA value, the larger the display of objects.

VIEW scale can be expressed in terms of a ratio using the VRAT (VIEW Ratio) attribute, for example:

VRAT 1 TO 75

VRAT 1/16in TO 1ft

Two positive values must be specified but the TO can be omitted. Setting VRAT recalculates the existing VIEW scale (VSCA attribute). Setting VSCA directly defines VRAT as unset. The AUTO command calculates and sets VSCA directly and defines VRAT as unset.

Care must be taken when changing VSCA, as it is easy to move the VIEW contents over the VIEW frame. The AUTO command takes the ONPOS value into consideration when it calculates the VSCALE.