Insert Mask

The Insert Mask command is used to define an area in a calculation area where the illuminance values should not be calculated.

To insert a mask on the drawing, go to
Ribbon: DM Photometrics→Calculation Areas→  Mask
Pulldown Menu: DM Photometrics→Insert Mask

You will be prompted to specify the starting point of the mask.

Specify points for mask: Specify start point:

You will then be prompted to specify the next point of the mask.

Specify next point:

Specify additional points or press ENTER to complete the mask. The mask will be displayed on the drawing. The illuminance levels inside the mask will not be calculated or displayed.