ossimPolyArea2d.h

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//*******************************************************************
//
// License:  See top level LICENSE.txt file.
//
// Author: Garrett Potts
//*******************************************************************
//$Id: ossimPolyArea2d.h 23608 2015-10-28 13:51:35Z gpotts $

#ifndef ossimPolyArea2d_HEADER
#define ossimPolyArea2d_HEADER 1

#include <ossim/base/ossimDpt.h>
#include <ossim/base/ossimGpt.h>
#include <ossim/base/ossimKeywordlist.h>
#include <ossim/base/ossimPolygon.h>
#include <ossim/base/ossimReferenced.h>
#include <vector>

class ossimDrect;
class ossimIrect;
class OssimPolyArea2dPrivate;

namespace geos
{
   namespace geom
   {
      class Geometry;
   }
}

class OSSIM_DLL ossimPolyArea2d : public ossimReferenced
{
public:
   friend class OssimPolyArea2dPrivate;
   friend OSSIM_DLL std::ostream& operator <<(std::ostream& out, const ossimPolyArea2d& data);
   
   ossimPolyArea2d();
   ossimPolyArea2d(const vector<ossimGpt>& polygon);
   ossimPolyArea2d(const vector<ossimDpt>& polygon);
   ossimPolyArea2d(const ossimPolygon& shell, const vector<ossimPolygon>& holes); 
   
   ossimPolyArea2d(const ossimDpt& p1,
                   const ossimDpt& p2,
                   const ossimDpt& p3,
                   const ossimDpt& p4);
   ossimPolyArea2d(const ossimPolyArea2d& rhs);
   
   ossimPolyArea2d(const ossimIrect& rect);
   ossimPolyArea2d(const ossimDrect& rect);
   ossimPolyArea2d(const ossimPolygon& polygon);
   ~ossimPolyArea2d();
   
   void clear()
   {
      clearPolygons();
   }
   const ossimPolyArea2d& operator =(const ossimPolyArea2d& rhs);
   const ossimPolyArea2d& operator =(const ossimPolygon& rhs);
   const ossimPolyArea2d& operator =(const ossimIrect& rect);
   const ossimPolyArea2d& operator =(const ossimDrect& rect);
   const ossimPolyArea2d& operator =(const vector<ossimGpt>& polygon);
   const ossimPolyArea2d& operator =(const vector<ossimDpt>& polygon);
   const ossimPolyArea2d& operator &=(const ossimPolyArea2d& rhs);
   ossimPolyArea2d operator &(const ossimPolyArea2d& rhs)const;
   ossimPolyArea2d operator +(const ossimPolyArea2d& rhs)const;
   const ossimPolyArea2d& operator +=(const ossimPolyArea2d& rhs);
   ossimPolyArea2d operator -(const ossimPolyArea2d& rhs)const;
   const ossimPolyArea2d& operator -=(const ossimPolyArea2d& rhs);
   
   bool intersects(const ossimPolyArea2d& rhs)const;
   
   void add(const ossimPolyArea2d& rhs);
   bool getVisiblePolygons(vector<ossimPolygon>& polyList)const;
   bool getPolygonHoles(vector<ossimPolygon>& polyList)const;
   
   bool getCompletePolygons(vector<ossimPolyArea2d>& polyList)const;
   
   bool isEmpty()const;
   bool isValid(bool displayValidationError = false)const;
   bool isPointWithin(const ossimDpt& point)const;
   bool isPointWithin(double x, double y)const;
   void getBoundingRect(ossimDrect& rect);
   
   std::string toString()const;

   ossimPolyArea2d getBufferedShape(double distance=FLT_EPSILON) const;
   
   ossimPolyArea2d& setToBufferedShape(double distance=FLT_EPSILON);

   ossimPolyArea2d& toMultiPolygon();
   bool saveState(ossimKeywordlist& kwl,
                  const char* prefix=0)const;
   bool loadState(const ossimKeywordlist& kwl,
                  const char* prefix=0);
   
protected:
   
   void clearPolygons();
   void recurseVisibleGeometries(ossimPolygon::Vector& polyList,
                                 const geos::geom::Geometry* geom) const;
   
   void recurseHoles(ossimPolygon::Vector& polyList,
                     const geos::geom::Geometry* geom) const;
   
   void recurseCompleteGeometries(std::vector<ossimPolyArea2d>& polyList,
                                  const geos::geom::Geometry* geom) const;
   
   OssimPolyArea2dPrivate* m_privateData;
};

#endif /* #ifndef ossimPolyArea2d_HEADER */