P0 |
Point 0 |
First point of the Region path. Located at the first point of contact of the Region outline with the Main region outline. When the Region is rotated, P0 and P1 are swapped. |
PC |
Point Center |
Next relevant point of the Region path. Located in the exact middle of 4 whole pixels approximately at the center of the Main region. When the Regions are rotated, each Region will have a different PC. |
P1 |
Point 1 |
Next relevant point of the Region path. Located at the second point of contact of the Region outline with the Main region outline. When the Region is rotated, P0 and P1 are swapped. |
PR |
Point Rotation |
Rotation origin around which the Region rotates. Located at the exact middle between P0 and P1. When the Region is rotated, PR is unaffected. |