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builddir/spatialindex-1.8.5/include/spatialindex/LineSegment.h Normal file
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/******************************************************************************
* Project: libspatialindex - A C++ library for spatial indexing
* Author: Marios Hadjieleftheriou, mhadji@gmail.com
******************************************************************************
* Copyright (c) 2004, Marios Hadjieleftheriou
*
* All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
******************************************************************************/
#pragma once
namespace SpatialIndex
{
class SIDX_DLL LineSegment : public Tools::IObject, public virtual IShape
{
public:
LineSegment();
LineSegment(const double* startPoint, const double* endPoint, uint32_t dimension);
LineSegment(const Point& startPoint, const Point& endPoint);
LineSegment(const LineSegment& l);
virtual ~LineSegment();
virtual LineSegment& operator=(const LineSegment& p);
virtual bool operator==(const LineSegment& p) const;
//
// IObject interface
//
virtual LineSegment* clone();
//
// ISerializable interface
//
virtual uint32_t getByteArraySize();
virtual void loadFromByteArray(const byte* data);
virtual void storeToByteArray(byte** data, uint32_t& length);
//
// IShape interface
//
virtual bool intersectsShape(const IShape& in) const;
virtual bool containsShape(const IShape& in) const;
virtual bool touchesShape(const IShape& in) const;
virtual void getCenter(Point& out) const;
virtual uint32_t getDimension() const;
virtual void getMBR(Region& out) const;
virtual double getArea() const;
virtual double getMinimumDistance(const IShape& in) const;
virtual bool intersectsLineSegment(const LineSegment& l) const;
virtual bool intersectsRegion(const Region& p) const;
virtual double getMinimumDistance(const Point& p) const;
//virtual double getMinimumDistance(const Region& r) const;
virtual double getRelativeMinimumDistance(const Point& p) const;
virtual double getRelativeMaximumDistance(const Region& r) const;
virtual double getAngleOfPerpendicularRay();
virtual void makeInfinite(uint32_t dimension);
virtual void makeDimension(uint32_t dimension);
public:
uint32_t m_dimension;
double* m_pStartPoint;
double* m_pEndPoint;
friend class Region;
friend class Point;
friend SIDX_DLL std::ostream& operator<<(std::ostream& os, const LineSegment& pt);
protected:
//some helpers for intersects methods
static double doubleAreaTriangle(const Point& a, const Point& b, const Point& c);
static bool leftOf(const Point& a, const Point& b, const Point& c);
static bool collinear(const Point& a, const Point& b, const Point& c);
static bool between(const Point& a, const Point& b, const Point& c);
static bool between(double a, double b, double c);
static bool intersectsProper(const Point& a, const Point& b, const Point& c, const Point& d);
static bool intersects(const Point& a, const Point& b, const Point& c, const Point& d);
}; // LineSegment
SIDX_DLL std::ostream& operator<<(std::ostream& os, const LineSegment& pt);
}