GEOS 3.13.1
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Functions for locating points within basic geometric structures such as lines and rings. More...
#include <PointLocation.h>
Static Public Member Functions | |
static bool | isOnSegment (const geom::CoordinateXY &p, const geom::CoordinateXY &p0, const geom::CoordinateXY &p1) |
Tests whether a point lies on a line segment. | |
static bool | isOnLine (const geom::CoordinateXY &p, const geom::CoordinateSequence *line) |
Tests whether a point lies on the line defined by a CoordinateSequence. | |
static bool | isInRing (const geom::CoordinateXY &p, const std::vector< const geom::Coordinate * > &ring) |
Tests whether a point lies inside or on a ring. | |
static bool | isInRing (const geom::CoordinateXY &p, const geom::CoordinateSequence *ring) |
static geom::Location | locateInRing (const geom::CoordinateXY &p, const std::vector< const geom::Coordinate * > &ring) |
Determines whether a point lies in the interior, on the boundary, or in the exterior of a ring. The ring may be oriented in either direction. | |
static geom::Location | locateInRing (const geom::CoordinateXY &p, const geom::CoordinateSequence &ring) |
static geom::Location | locateInRing (const geom::CoordinateXY &p, const geom::Curve &ring) |
Functions for locating points within basic geometric structures such as lines and rings.
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Tests whether a point lies inside or on a ring.
The ring may be oriented in either direction. A point lying exactly on the ring boundary is considered to be inside the ring.
This method does not first check the point against the envelope of the ring.
p | point to check for ring inclusion |
ring | an array of coordinates representing the ring (which must have first point identical to last point) |
References isInRing().
Referenced by isInRing().
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Tests whether a point lies on the line defined by a CoordinateSequence.
p | the point to test |
line | the line coordinates |
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Tests whether a point lies on a line segment.
p | the point to test |
p0 | a point of the line segment |
p1 | a point of the line segment |
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Determines whether a point lies in the interior, on the boundary, or in the exterior of a ring. The ring may be oriented in either direction.
This method does not first check the point against the envelope of the ring.
p | point to check for ring inclusion |
ring | an array of coordinates representing the ring (which must have first point identical to last point) |
References locateInRing().
Referenced by locateInRing().