#include <DistanceOp.h>
Public Member Functions | |
| DistanceOp (const geom::Geometry *g0, const geom::Geometry *g1) | |
| DistanceOp (const geom::Geometry &g0, const geom::Geometry &g1) | |
| Constructs a DistanceOp that computes the distance and nearest points between the two specified geometries. | |
| DistanceOp (const geom::Geometry &g0, const geom::Geometry &g1, double terminateDistance) | |
| Constructs a DistanceOp that computes the distance and nearest points between the two specified geometries. | |
| double | distance () |
| geom::CoordinateSequence * | closestPoints () |
| geom::CoordinateSequence * | nearestPoints () |
Static Public Member Functions | |
| static double | distance (const geom::Geometry &g0, const geom::Geometry &g1) |
| Compute the distance between the nearest points of two geometries. | |
| static double | distance (const geom::Geometry *g0, const geom::Geometry *g1) |
| static bool | isWithinDistance (const geom::Geometry &g0, const geom::Geometry &g1, double distance) |
| Test whether two geometries lie within a given distance of each other. | |
| static geom::CoordinateSequence * | nearestPoints (const geom::Geometry *g0, const geom::Geometry *g1) |
| static geom::CoordinateSequence * | closestPoints (const geom::Geometry *g0, const geom::Geometry *g1) |
The distance computation also finds a pair of points in the input geometries which have the minimum distance between them. If a point lies in the interior of a line segment, the coordinate computed is a close approximation to the exact point.
The algorithms used are straightforward O(n^2) comparisons. This worst-case performance could be improved on by using Voronoi techniques or spatial indexes.
| geos::operation::distance::DistanceOp::DistanceOp | ( | const geom::Geometry * | g0, | |
| const geom::Geometry * | g1 | |||
| ) |
| geos::operation::distance::DistanceOp::DistanceOp | ( | const geom::Geometry & | g0, | |
| const geom::Geometry & | g1 | |||
| ) |
Constructs a DistanceOp that computes the distance and nearest points between the two specified geometries.
| g0 | a Geometry | |
| g1 | a Geometry |
| geos::operation::distance::DistanceOp::DistanceOp | ( | const geom::Geometry & | g0, | |
| const geom::Geometry & | g1, | |||
| double | terminateDistance | |||
| ) |
Constructs a DistanceOp that computes the distance and nearest points between the two specified geometries.
| g0 | a Geometry | |
| g1 | a Geometry | |
| terminateDistance | the distance on which to terminate the search |
| static double geos::operation::distance::DistanceOp::distance | ( | const geom::Geometry & | g0, | |
| const geom::Geometry & | g1 | |||
| ) | [static] |
| static double geos::operation::distance::DistanceOp::distance | ( | const geom::Geometry * | g0, | |
| const geom::Geometry * | g1 | |||
| ) | [static] |
| static bool geos::operation::distance::DistanceOp::isWithinDistance | ( | const geom::Geometry & | g0, | |
| const geom::Geometry & | g1, | |||
| double | distance | |||
| ) | [static] |
| static geom::CoordinateSequence* geos::operation::distance::DistanceOp::nearestPoints | ( | const geom::Geometry * | g0, | |
| const geom::Geometry * | g1 | |||
| ) | [static] |
| static geom::CoordinateSequence* geos::operation::distance::DistanceOp::closestPoints | ( | const geom::Geometry * | g0, | |
| const geom::Geometry * | g1 | |||
| ) | [static] |
Compute the the closest points of two geometries.
The points are presented in the same order as the input Geometries.
| double geos::operation::distance::DistanceOp::distance | ( | ) |
| geom::CoordinateSequence* geos::operation::distance::DistanceOp::closestPoints | ( | ) |
Report the coordinates of the closest points in the input geometries. The points are presented in the same order as the input Geometries.
| geom::CoordinateSequence* geos::operation::distance::DistanceOp::nearestPoints | ( | ) |
Report the coordinates of the nearest points in the input geometries. The points are presented in the same order as the input Geometries.
1.5.4