R - Commands  
REGION_AI_BY_IP (command)
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It adds an island to a region by defining an inner point

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 Command line: REGION_AI_BY_IP

 

The REGION_AI_BY_IP command adds an island to a region by defining an inner point

The following prompt is displayed: Select a region: select a previously created region. Next prompt: Select a point inside the island or [Tolerance/new Region/Undo]<0.0000>: select point, press  T to set tolerance,R to create a new region,  U to undo.

For example, it is possible to obtain the following figure Starting from a circle drawn inside a rectangle. Pressing  R and clicking in the area of the rectangle that is outside the circle will make a new rectangle region appear. An island can be added to it clicking inside the circle (white area).

 

Also see:

REGION