Drawing geometric objects  
Creating and combining areas (Regions)
 
 Overview 
 
 Operations 
 
 Commands 
 

How to define the regions

How to create islands of an existing region

How to create regions specifying an inner point

How to create islands of an existing region using inner points

How to delete islands from a region

How to delete islands from a region and convert them to polylines

How to combine regions by union

How to combine regions by subtraction

How to combine regions by finding intersections