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104 lines
4.1 KiB
C++
104 lines
4.1 KiB
C++
/******************************************************************************
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* Project: libspatialindex - A C++ library for spatial indexing
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* Author: Marios Hadjieleftheriou, mhadji@gmail.com
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******************************************************************************
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* Copyright (c) 2004, Marios Hadjieleftheriou
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*
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* All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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******************************************************************************/
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#pragma once
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namespace SpatialIndex
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{
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class SIDX_DLL LineSegment : public Tools::IObject, public virtual IShape
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{
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public:
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LineSegment();
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LineSegment(const double* startPoint, const double* endPoint, uint32_t dimension);
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LineSegment(const Point& startPoint, const Point& endPoint);
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LineSegment(const LineSegment& l);
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virtual ~LineSegment();
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virtual LineSegment& operator=(const LineSegment& p);
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virtual bool operator==(const LineSegment& p) const;
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//
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// IObject interface
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//
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virtual LineSegment* clone();
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//
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// ISerializable interface
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//
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virtual uint32_t getByteArraySize();
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virtual void loadFromByteArray(const byte* data);
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virtual void storeToByteArray(byte** data, uint32_t& length);
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//
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// IShape interface
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//
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virtual bool intersectsShape(const IShape& in) const;
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virtual bool containsShape(const IShape& in) const;
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virtual bool touchesShape(const IShape& in) const;
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virtual void getCenter(Point& out) const;
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virtual uint32_t getDimension() const;
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virtual void getMBR(Region& out) const;
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virtual double getArea() const;
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virtual double getMinimumDistance(const IShape& in) const;
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virtual bool intersectsLineSegment(const LineSegment& l) const;
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virtual bool intersectsRegion(const Region& p) const;
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virtual double getMinimumDistance(const Point& p) const;
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//virtual double getMinimumDistance(const Region& r) const;
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virtual double getRelativeMinimumDistance(const Point& p) const;
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virtual double getRelativeMaximumDistance(const Region& r) const;
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virtual double getAngleOfPerpendicularRay();
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virtual void makeInfinite(uint32_t dimension);
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virtual void makeDimension(uint32_t dimension);
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public:
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uint32_t m_dimension;
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double* m_pStartPoint;
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double* m_pEndPoint;
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friend class Region;
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friend class Point;
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friend SIDX_DLL std::ostream& operator<<(std::ostream& os, const LineSegment& pt);
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protected:
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//some helpers for intersects methods
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static double doubleAreaTriangle(const Point& a, const Point& b, const Point& c);
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static bool leftOf(const Point& a, const Point& b, const Point& c);
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static bool collinear(const Point& a, const Point& b, const Point& c);
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static bool between(const Point& a, const Point& b, const Point& c);
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static bool between(double a, double b, double c);
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static bool intersectsProper(const Point& a, const Point& b, const Point& c, const Point& d);
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static bool intersects(const Point& a, const Point& b, const Point& c, const Point& d);
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}; // LineSegment
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SIDX_DLL std::ostream& operator<<(std::ostream& os, const LineSegment& pt);
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}
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