GEOS 3.14.0dev
IndexedFacetDistance.h
1/**********************************************************************
2 *
3 * GEOS - Geometry Engine Open Source
4 * http://geos.osgeo.org
5 *
6 * Copyright (C) 2016 Daniel Baston
7 *
8 * This is free software; you can redistribute and/or modify it under
9 * the terms of the GNU Lesser General Public Licence as published
10 * by the Free Software Foundation.
11 * See the COPYING file for more information.
12 *
13 **********************************************************************
14 *
15 * Last port: operation/distance/IndexedFacetDistance.java (f6187ee2 JTS-1.14)
16 *
17 **********************************************************************/
18
19#pragma once
20
21#include <geos/operation/distance/FacetSequenceTreeBuilder.h>
22
23namespace geos {
24namespace operation {
25namespace distance {
26
46class GEOS_DLL IndexedFacetDistance {
47public:
48
61 cachedTree(FacetSequenceTreeBuilder::build(g)),
62 baseGeometry(*g)
63 {}
64
73 static double distance(const geom::Geometry* g1, const geom::Geometry* g2);
74
80 static std::unique_ptr<geom::CoordinateSequence> nearestPoints(const geom::Geometry* g1, const geom::Geometry* g2);
81
87 double distance(const geom::Geometry* g) const;
88
95 bool isWithinDistance(const geom::Geometry* g, double maxDistance) const;
96
101 std::vector<GeometryLocation> nearestLocations(const geom::Geometry* g) const;
102
107 std::unique_ptr<geom::CoordinateSequence> nearestPoints(const geom::Geometry* g) const;
108
109private:
110 struct FacetDistance {
111 double operator()(const FacetSequence* a, const FacetSequence* b) const
112 {
113 return a->distance(*b);
114 }
115 };
116
117 std::unique_ptr<geos::index::strtree::TemplateSTRtree<const FacetSequence*>> cachedTree;
118 const geom::Geometry& baseGeometry;
119
120};
121}
122}
123}
124
Basic implementation of Geometry, constructed and destructed by GeometryFactory.
Definition Geometry.h:197
Computes the distance between the facets (segments and vertices) of two Geometrys using a Branch-and-...
Definition IndexedFacetDistance.h:46
std::unique_ptr< geom::CoordinateSequence > nearestPoints(const geom::Geometry *g) const
Compute the nearest locations on the target geometry and the given geometry.
static std::unique_ptr< geom::CoordinateSequence > nearestPoints(const geom::Geometry *g1, const geom::Geometry *g2)
Computes the nearest points of the facets of two geometries.
double distance(const geom::Geometry *g) const
Computes the distance from the base geometry to the given geometry.
static double distance(const geom::Geometry *g1, const geom::Geometry *g2)
Computes the distance between facets of two geometries.
std::vector< GeometryLocation > nearestLocations(const geom::Geometry *g) const
Computes the nearest locations on the base geometry and the given geometry.
bool isWithinDistance(const geom::Geometry *g, double maxDistance) const
Tests whether the base geometry lies within a specified distance of the given geometry.
IndexedFacetDistance(const geom::Geometry *g)
Creates a new distance-finding instance for a given target geom::Geometry.
Definition IndexedFacetDistance.h:60
Basic namespace for all GEOS functionalities.
Definition geos.h:39