|  | Home | Libraries | People | FAQ | More | 
Enumerates options for the order of points within polygons.
The enumeration order_selector describes options for the order of points within a polygon. Polygons can be ordered either clockwise or counterclockwise. The specific order of a polygon type is defined by the point_order metafunction. The point_order metafunction defines a value, which is one of the values enumerated in the order_selector
enum order_selector {clockwise = 1, counterclockwise = 2, order_undetermined = 0};
| Value | Description | 
|---|---|
| clockwise | Points are ordered clockwise. | 
| counterclockwise | Points are ordered counter clockwise. | 
| order_undetermined | Points might be stored in any order, algorithms will determine it on the fly (not yet supported) | 
Either
          #include <boost/geometry.hpp>
        
Or
          #include <boost/geometry/core/point_order.hpp>