Corner Command

Corner( <Number of Corner> ): For number n = 1, 2, 3, 4 creates a point at the corner of the Graphics View, for n = 5 returns point (w, h), where w and h are width and height of the Graphics View in pixels. Always uses first Graphics View, even if second is active.
Corner( <Graphics View>, <Number of Corner> ): Creates a point at the corner of Graphics View (1, 2) which is never visible in that view. Supported values of number n are 1, 2, 3, 4 and 5 as above.

use -1 for the 3D Graphics View's corners (available values for Number: from 1 to 8); for n = 9 returns point (w, h, 0), where w and h are width and height of the Graphics View in pixels; for n = 10 returns point (w, h, 0), where w and h are width and height of the main window in pixels; for n = 11 returns view direction (for parallel projections) or eye position (for e.g. perspective projection); for n = 12 returns screen left-to-right direction; for n = 13 returns scales for x, y, z axes.

Corner( <Graphics View>, <Number of Corner> ) won’t work inside other commands. Instead create eg C_1 = Corner(1, 1) and use that.

Corner( <Number of Corner> ) won’t work inside other commands. Instead create eg C_1 = Corner(1) and use that.

Corner( <Image>, <Number of Corner> ): Creates a point at the corner of the image (number n = 1, 2, 3, 4).
Corner( <Text>, <Number of Corner> ): Creates a point at the corner of the text (number n = 1, 2, 3, 4).

Corner( <Text>, <Number of Corner> ) won’t work inside the Sequence or Zip commands. Also the Absolute Position on Screen property must be unchecked

The numbering of the corners is counter‐clockwise and starts at the lower left corner.