...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
Checks if a geometry has at least one touching point (self-tangency)
template<typename Geometry> bool touches(Geometry const & geometry)
Type |
Concept |
Name |
Description |
---|---|---|---|
Geometry const & |
Any type fulfilling a Geometry Concept |
geometry |
A model of the specified concept |
Returns true if the geometry is self-touching
Either
#include <boost/geometry.hpp>
Or
#include <boost/geometry/algorithms/touches.hpp>
The function touches implements function Touches from the OGC Simple Feature Specification.
The version with one parameter is additional and not described in the OGC standard
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Note |
---|---|
Implemented for Point/Linestring/MultiLinestring/Polygon/MultiPolygon. |