Boost
C++ Libraries
...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
Boost
C++ Libraries
...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
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>