628 lines
14 KiB
C
628 lines
14 KiB
C
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/**********************************************************************
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*
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* GEOS - Geometry Engine Open Source
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* http://geos.osgeo.org
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*
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* Copyright (C) 2006 Refractions Research Inc.
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*
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* This is free software; you can redistribute and/or modify it under
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* the terms of the GNU Lesser General Public Licence as published
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* by the Free Software Foundation.
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* See the COPYING file for more information.
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*
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**********************************************************************/
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#pragma once
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#include <geos/export.h>
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#include <geos/constants.h> // for DoubleNotANumber
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#include <set>
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#include <unordered_set>
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#include <stack>
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#include <vector> // for typedefs
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#include <string>
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#include <limits>
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#include <map>
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#ifdef _MSC_VER
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#pragma warning(push)
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#pragma warning(disable: 4251) // warning C4251: needs to have dll-interface to be used by clients of class
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#endif
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namespace geos {
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namespace geom { // geos.geom
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// Forward declarations
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struct CoordinateLessThan;
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class CoordinateXYZM;
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class CoordinateXYM;
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class Coordinate;
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enum class CoordinateType : std::uint8_t {
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XY,
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XYZ,
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XYZM,
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XYM,
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};
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enum class Ordinate : std::uint8_t {
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X,
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Y,
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Z,
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M
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};
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GEOS_DLL std::ostream& operator<< (std::ostream&, const CoordinateType);
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class GEOS_DLL CoordinateXY {
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const static CoordinateXY _nullCoord;
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protected:
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constexpr const static double DEFAULT_X = 0.0;
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constexpr const static double DEFAULT_Y = 0.0;
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constexpr const static double DEFAULT_Z = DoubleNotANumber;
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constexpr const static double DEFAULT_M = DoubleNotANumber;
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public:
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CoordinateXY()
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: x(DEFAULT_X)
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, y(DEFAULT_Y)
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{}
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CoordinateXY(double xNew, double yNew)
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: x(xNew)
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, y(yNew)
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{}
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template<Ordinate>
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double get() const;
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/// x-coordinate
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double x;
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/// y-coordinate
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double y;
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/// Equality operator for Coordinate. 2D only.
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GEOS_DLL friend bool operator==(const CoordinateXY& a, const CoordinateXY& b)
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{
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return a.equals2D(b);
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};
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/// Inequality operator for Coordinate. 2D only.
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GEOS_DLL friend bool operator!=(const CoordinateXY& a, const CoordinateXY& b)
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{
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return ! a.equals2D(b);
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};
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bool isValid() const
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{
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return std::isfinite(x) && std::isfinite(y);
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};
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bool equals2D(const CoordinateXY& other) const
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{
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if(x != other.x) {
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return false;
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}
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if(y != other.y) {
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return false;
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}
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return true;
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};
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bool equals2D(const CoordinateXY& other, double tolerance) const
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{
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if (std::abs(x - other.x) > tolerance) {
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return false;
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}
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if (std::abs(y - other.y) > tolerance) {
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return false;
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}
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return true;
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};
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/// 2D only
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bool equals(const CoordinateXY& other) const
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{
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return equals2D(other);
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};
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/// TODO: deprecate this, move logic to CoordinateLessThan instead
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inline int compareTo(const CoordinateXY& other) const
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{
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if(x < other.x) {
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return -1;
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}
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if(x > other.x) {
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return 1;
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}
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if(y < other.y) {
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return -1;
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}
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if(y > other.y) {
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return 1;
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}
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return 0;
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};
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static const CoordinateXY& getNull();
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double distance(const CoordinateXY& p) const
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{
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double dx = x - p.x;
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double dy = y - p.y;
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return std::sqrt(dx * dx + dy * dy);
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};
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double distanceSquared(const CoordinateXY& p) const
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{
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double dx = x - p.x;
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double dy = y - p.y;
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return dx * dx + dy * dy;
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};
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bool isNull() const
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{
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return (std::isnan(x) && std::isnan(y));
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};
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void setNull()
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{
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x = DoubleNotANumber;
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y = DoubleNotANumber;
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};
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struct GEOS_DLL HashCode
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{
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inline std::size_t operator()(const CoordinateXY& c) const
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{
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size_t h = std::hash<double>{}(c.x);
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h ^= std::hash<double>{}(c.y) << 1;
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// z ordinate ignored for consistency with operator==
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return h;
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};
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};
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using UnorderedSet = std::unordered_set<Coordinate, HashCode>;
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/// Returns a string of the form <I>(x,y,z)</I> .
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std::string toString() const;
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};
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/**
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* \class Coordinate geom.h geos.h
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*
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* \brief
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* Coordinate is the lightweight class used to store coordinates.
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*
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* It is distinct from Point, which is a subclass of Geometry.
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* Unlike objects of type Point (which contain additional
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* information such as an envelope, a precision model, and spatial
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* reference system information), a Coordinate only contains
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* ordinate values and accessor methods.
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*
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* Coordinate objects are two-dimensional points, with an additional
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* z-ordinate. JTS does not support any operations on the z-ordinate except
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* the basic accessor functions.
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*
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* Constructed coordinates will have a z-ordinate of DoubleNotANumber.
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* The standard comparison functions will ignore the z-ordinate.
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*
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*/
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// Define the following to make assignments and copy constructions
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// NON-(will let profilers report usages)
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//#define PROFILE_COORDINATE_COPIES 1
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class GEOS_DLL Coordinate : public CoordinateXY {
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private:
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static const Coordinate _nullCoord;
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public:
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/// A set of const Coordinate pointers
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typedef std::set<const Coordinate*, CoordinateLessThan> ConstSet;
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typedef std::set<const CoordinateXY*, CoordinateLessThan> ConstXYSet;
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/// A vector of const Coordinate pointers
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typedef std::vector<const Coordinate*> ConstVect;
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/// A stack of const Coordinate pointers
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typedef std::stack<const Coordinate*> ConstStack;
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/// A vector of Coordinate objects (real object, not pointers)
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typedef std::vector<Coordinate> Vect;
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/// A map of const Coordinate pointers to integers
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typedef std::map<const CoordinateXY*, int, CoordinateLessThan> ConstIntMap;
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/// z-coordinate
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double z;
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Coordinate()
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: CoordinateXY()
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, z(DEFAULT_Z)
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{};
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Coordinate(double xNew, double yNew, double zNew = DEFAULT_Z)
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: CoordinateXY(xNew, yNew)
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, z(zNew)
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{};
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explicit Coordinate(const CoordinateXY& other)
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: CoordinateXY(other)
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, z(DEFAULT_Z)
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{};
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template<Ordinate>
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double get() const;
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void setNull()
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{
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CoordinateXY::setNull();
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z = DoubleNotANumber;
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};
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static const Coordinate& getNull();
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bool isNull() const
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{
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return CoordinateXY::isNull() && std::isnan(z);
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};
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/// 3D comparison
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bool equals3D(const Coordinate& other) const
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{
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return (x == other.x) && (y == other.y) &&
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((z == other.z) || (std::isnan(z) && std::isnan(other.z)));
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};
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/// Returns a string of the form <I>(x,y,z)</I> .
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std::string toString() const;
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Coordinate& operator=(const CoordinateXY& other){
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x = other.x;
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y = other.y;
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z = DEFAULT_Z;
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return *this;
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}
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};
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class GEOS_DLL CoordinateXYM : public CoordinateXY {
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private:
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static const CoordinateXYM _nullCoord;
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public:
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CoordinateXYM() : CoordinateXYM(DEFAULT_X, DEFAULT_Y, DEFAULT_M) {}
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explicit CoordinateXYM(const CoordinateXY& c)
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: CoordinateXY(c)
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, m(DEFAULT_M) {}
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CoordinateXYM(double x_, double y_, double m_)
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: CoordinateXY(x_, y_)
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, m(m_) {}
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double m;
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template<Ordinate>
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double get() const;
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static const CoordinateXYM& getNull();
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void setNull()
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{
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CoordinateXY::setNull();
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m = DoubleNotANumber;
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};
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bool isNull() const
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{
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return CoordinateXY::isNull() && std::isnan(m);
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}
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bool equals3D(const CoordinateXYM& other) const {
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return x == other.x && y == other.y && (m == other.m || (std::isnan(m) && std::isnan(other.m)));
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}
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CoordinateXYM& operator=(const CoordinateXYZM& other);
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CoordinateXYM& operator=(const CoordinateXY& other) {
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x = other.x;
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y = other.y;
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m = DEFAULT_M;
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return *this;
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}
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std::string toString() const;
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};
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class GEOS_DLL CoordinateXYZM : public Coordinate {
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private:
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static const CoordinateXYZM _nullCoord;
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public:
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CoordinateXYZM() : CoordinateXYZM(DEFAULT_X, DEFAULT_Y, DEFAULT_Z, DEFAULT_M) {}
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explicit CoordinateXYZM(const CoordinateXY& c)
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: Coordinate(c)
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, m(DEFAULT_M) {}
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explicit CoordinateXYZM(const CoordinateXYM& c)
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: Coordinate(c)
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, m(c.m) {}
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explicit CoordinateXYZM(const Coordinate& c)
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: Coordinate(c)
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, m(DEFAULT_M) {}
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CoordinateXYZM(double x_, double y_, double z_, double m_)
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: Coordinate(x_, y_, z_)
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, m(m_) {}
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double m;
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template<Ordinate>
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double get() const;
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static const CoordinateXYZM& getNull();
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void setNull()
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{
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Coordinate::setNull();
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m = DoubleNotANumber;
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};
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bool isNull() const
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{
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return Coordinate::isNull() && std::isnan(m);
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}
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bool equals4D(const CoordinateXYZM& other) const {
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return x == other.x && y == other.y &&
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(z == other.z || (std::isnan(z) && std::isnan(other.z))) &&
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(m == other.m || (std::isnan(m) && std::isnan(other.m)));
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}
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CoordinateXYZM& operator=(const CoordinateXY& other) {
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x = other.x;
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y = other.y;
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z = DEFAULT_Z;
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m = DEFAULT_M;
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return *this;
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}
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CoordinateXYZM& operator=(const Coordinate& other) {
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x = other.x;
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y = other.y;
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z = other.z;
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m = DEFAULT_M;
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return *this;
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}
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CoordinateXYZM& operator=(const CoordinateXYM& other) {
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x = other.x;
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y = other.y;
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z = DEFAULT_Z;
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m = other.m;
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return *this;
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}
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std::string toString() const;
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};
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inline CoordinateXYM&
|
||
|
|
CoordinateXYM::operator=(const CoordinateXYZM& other) {
|
||
|
|
x = other.x;
|
||
|
|
y = other.y;
|
||
|
|
m = other.m;
|
||
|
|
|
||
|
|
return *this;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/// Strict weak ordering Functor for Coordinate
|
||
|
|
struct GEOS_DLL CoordinateLessThan {
|
||
|
|
|
||
|
|
bool operator()(const CoordinateXY* a, const CoordinateXY* b) const
|
||
|
|
{
|
||
|
|
if(a->compareTo(*b) < 0) {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
bool operator()(const CoordinateXY& a, const CoordinateXY& b) const
|
||
|
|
{
|
||
|
|
if(a.compareTo(b) < 0) {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
};
|
||
|
|
|
||
|
|
/// Strict weak ordering operator for Coordinate
|
||
|
|
inline bool operator<(const CoordinateXY& a, const CoordinateXY& b)
|
||
|
|
{
|
||
|
|
return CoordinateLessThan()(a, b);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
// Generic accessors, XY
|
||
|
|
|
||
|
|
template<>
|
||
|
|
inline double CoordinateXY::get<Ordinate::X>() const
|
||
|
|
{
|
||
|
|
return x;
|
||
|
|
}
|
||
|
|
|
||
|
|
template<>
|
||
|
|
inline double CoordinateXY::get<Ordinate::Y>() const
|
||
|
|
{
|
||
|
|
return y;
|
||
|
|
}
|
||
|
|
|
||
|
|
template<>
|
||
|
|
inline double CoordinateXY::get<Ordinate::Z>() const
|
||
|
|
{
|
||
|
|
return DEFAULT_Z;
|
||
|
|
}
|
||
|
|
|
||
|
|
template<>
|
||
|
|
inline double CoordinateXY::get<Ordinate::M>() const
|
||
|
|
{
|
||
|
|
return DEFAULT_M;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Generic accessors, XYZ
|
||
|
|
|
||
|
|
template<>
|
||
|
|
inline double Coordinate::get<Ordinate::X>() const
|
||
|
|
{
|
||
|
|
return x;
|
||
|
|
}
|
||
|
|
|
||
|
|
template<>
|
||
|
|
inline double Coordinate::get<Ordinate::Y>() const
|
||
|
|
{
|
||
|
|
return y;
|
||
|
|
}
|
||
|
|
|
||
|
|
template<>
|
||
|
|
inline double Coordinate::get<Ordinate::Z>() const
|
||
|
|
{
|
||
|
|
return z;
|
||
|
|
}
|
||
|
|
|
||
|
|
template<>
|
||
|
|
inline double Coordinate::get<Ordinate::M>() const
|
||
|
|
{
|
||
|
|
return DEFAULT_M;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Generic accessors, XYM
|
||
|
|
|
||
|
|
template<>
|
||
|
|
inline double CoordinateXYM::get<Ordinate::X>() const
|
||
|
|
{
|
||
|
|
return x;
|
||
|
|
}
|
||
|
|
|
||
|
|
template<>
|
||
|
|
inline double CoordinateXYM::get<Ordinate::Y>() const
|
||
|
|
{
|
||
|
|
return y;
|
||
|
|
}
|
||
|
|
|
||
|
|
template<>
|
||
|
|
inline double CoordinateXYM::get<Ordinate::Z>() const
|
||
|
|
{
|
||
|
|
return DEFAULT_Z;
|
||
|
|
}
|
||
|
|
|
||
|
|
template<>
|
||
|
|
inline double CoordinateXYM::get<Ordinate::M>() const
|
||
|
|
{
|
||
|
|
return m;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Generic accessors, XYZM
|
||
|
|
|
||
|
|
template<>
|
||
|
|
inline double CoordinateXYZM::get<Ordinate::X>() const
|
||
|
|
{
|
||
|
|
return x;
|
||
|
|
}
|
||
|
|
|
||
|
|
template<>
|
||
|
|
inline double CoordinateXYZM::get<Ordinate::Y>() const
|
||
|
|
{
|
||
|
|
return y;
|
||
|
|
}
|
||
|
|
|
||
|
|
template<>
|
||
|
|
inline double CoordinateXYZM::get<Ordinate::Z>() const
|
||
|
|
{
|
||
|
|
return z;
|
||
|
|
}
|
||
|
|
|
||
|
|
template<>
|
||
|
|
inline double CoordinateXYZM::get<Ordinate::M>() const
|
||
|
|
{
|
||
|
|
return m;
|
||
|
|
}
|
||
|
|
|
||
|
|
GEOS_DLL std::ostream& operator<< (std::ostream& os, const CoordinateXY& c);
|
||
|
|
GEOS_DLL std::ostream& operator<< (std::ostream& os, const Coordinate& c);
|
||
|
|
GEOS_DLL std::ostream& operator<< (std::ostream& os, const CoordinateXYM& c);
|
||
|
|
GEOS_DLL std::ostream& operator<< (std::ostream& os, const CoordinateXYZM& c);
|
||
|
|
|
||
|
|
} // namespace geos.geom
|
||
|
|
} // namespace geos
|
||
|
|
|
||
|
|
// Add specializations of std::common_type for Coordinate types
|
||
|
|
namespace std {
|
||
|
|
template<> struct common_type<geos::geom::CoordinateXY, geos::geom::CoordinateXY> { using type = geos::geom::CoordinateXY; };
|
||
|
|
template<> struct common_type<geos::geom::CoordinateXY, geos::geom::Coordinate> { using type = geos::geom::Coordinate; };
|
||
|
|
template<> struct common_type<geos::geom::CoordinateXY, geos::geom::CoordinateXYM> { using type = geos::geom::CoordinateXYM; };
|
||
|
|
template<> struct common_type<geos::geom::CoordinateXY, geos::geom::CoordinateXYZM> { using type = geos::geom::CoordinateXYZM; };
|
||
|
|
|
||
|
|
template<> struct common_type<geos::geom::Coordinate, geos::geom::CoordinateXY> { using type = geos::geom::Coordinate; };
|
||
|
|
template<> struct common_type<geos::geom::Coordinate, geos::geom::Coordinate> { using type = geos::geom::Coordinate; };
|
||
|
|
template<> struct common_type<geos::geom::Coordinate, geos::geom::CoordinateXYM> { using type = geos::geom::CoordinateXYZM; };
|
||
|
|
template<> struct common_type<geos::geom::Coordinate, geos::geom::CoordinateXYZM> { using type = geos::geom::CoordinateXYZM; };
|
||
|
|
|
||
|
|
template<> struct common_type<geos::geom::CoordinateXYM, geos::geom::CoordinateXY> { using type = geos::geom::CoordinateXYM; };
|
||
|
|
template<> struct common_type<geos::geom::CoordinateXYM, geos::geom::Coordinate> { using type = geos::geom::CoordinateXYZM; };
|
||
|
|
template<> struct common_type<geos::geom::CoordinateXYM, geos::geom::CoordinateXYM> { using type = geos::geom::CoordinateXYM; };
|
||
|
|
template<> struct common_type<geos::geom::CoordinateXYM, geos::geom::CoordinateXYZM> { using type = geos::geom::CoordinateXYZM; };
|
||
|
|
|
||
|
|
template<> struct common_type<geos::geom::CoordinateXYZM, geos::geom::CoordinateXY> { using type = geos::geom::CoordinateXYZM; };
|
||
|
|
template<> struct common_type<geos::geom::CoordinateXYZM, geos::geom::Coordinate> { using type = geos::geom::CoordinateXYZM; };
|
||
|
|
template<> struct common_type<geos::geom::CoordinateXYZM, geos::geom::CoordinateXYM> { using type = geos::geom::CoordinateXYZM; };
|
||
|
|
template<> struct common_type<geos::geom::CoordinateXYZM, geos::geom::CoordinateXYZM> { using type = geos::geom::CoordinateXYZM; };
|
||
|
|
}
|
||
|
|
|
||
|
|
#ifdef _MSC_VER
|
||
|
|
#pragma warning(pop)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|