FacetSequence.h
/**********************************************************************
*
* GEOS - Geometry Engine Open Source
* http://geos.osgeo.org
*
* Copyright (C) 2016 Daniel Baston
*
* This is free software; you can redistribute and/or modify it under
* the terms of the GNU Lesser General Public Licence as published
* by the Free Software Foundation.
* See the COPYING file for more information.
*
**********************************************************************
*
* Last port: operation/distance/FacetSequence.java (f6187ee2 JTS-1.14)
*
**********************************************************************/
#pragma once
#include <geos/geom/CoordinateSequence.h>
#include <geos/geom/Envelope.h>
#include <geos/geom/Coordinate.h>
#include <geos/geom/LineSegment.h>
#include <geos/operation/distance/GeometryLocation.h>
namespace geos {
namespace operation {
namespace distance {
class FacetSequence {
private:
const geom::CoordinateSequence* pts;
const std::size_t start;
const std::size_t end;
const geom::Geometry* geom;
/*
* Unlike JTS, we store the envelope in the FacetSequence so
* that it has a clear owner. This is helpful when making a
* tree of FacetSequence objects (FacetSequenceTreeBuilder)
*/
geom::Envelope env;
double computeDistanceLineLine(const FacetSequence& facetSeq,
std::vector<GeometryLocation> *locs) const;
double computeDistancePointLine(const geom::Coordinate& pt,
const FacetSequence& facetSeq,
std::vector<GeometryLocation> *locs) const;
void updateNearestLocationsPointLine(const geom::Coordinate& pt,
const FacetSequence& facetSeq, std::size_t i,
const geom::Coordinate& q0, const geom::Coordinate &q1,
std::vector<GeometryLocation> *locs) const;
void updateNearestLocationsLineLine(std::size_t i, const geom::Coordinate& p0, const geom::Coordinate& p1,
const FacetSequence& facetSeq,
std::size_t j, const geom::Coordinate& q0, const geom::Coordinate &q1,
std::vector<GeometryLocation> *locs) const;
void computeEnvelope();
public:
const geom::Envelope* getEnvelope() const;
const geom::Coordinate* getCoordinate(std::size_t index) const;
std::size_t size() const;
bool isPoint() const;
double distance(const FacetSequence& facetSeq) const;
FacetSequence(const geom::CoordinateSequence* pts, std::size_t start, std::size_t end);
FacetSequence(const geom::Geometry* geom, const geom::CoordinateSequence* pts, std::size_t start, std::size_t end);
std::vector<GeometryLocation> nearestLocations(const FacetSequence& facetSeq) const;
};
}
}
}
geos::operation::distance
Provides classes for computing the distance between geometries.
Definition namespaces.h:185
geos::operation
Provides classes for implementing operations on geometries.
Definition CleanCoverage.h:34
geos
Basic namespace for all GEOS functionalities.
Definition geos.h:38