GEOS
3.3.8
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00001 /********************************************************************** 00002 * $Id: CoordinateSequence.h 3255 2011-03-01 17:56:10Z mloskot $ 00003 * 00004 * GEOS - Geometry Engine Open Source 00005 * http://geos.refractions.net 00006 * 00007 * Copyright (C) 2006 Refractions Research Inc. 00008 * 00009 * This is free software; you can redistribute and/or modify it under 00010 * the terms of the GNU Lesser General Public Licence as published 00011 * by the Free Software Foundation. 00012 * See the COPYING file for more information. 00013 * 00014 **********************************************************************/ 00015 00016 #ifndef GEOS_GEOM_COORDINATESEQUENCE_H 00017 #define GEOS_GEOM_COORDINATESEQUENCE_H 00018 00019 #include <geos/export.h> 00020 #include <geos/platform.h> 00021 #include <geos/inline.h> 00022 00023 #include <geos/geom/Coordinate.h> // for applyCoordinateFilter 00024 00025 #include <vector> 00026 #include <iosfwd> // ostream 00027 #include <memory> // for auto_ptr typedef 00028 00029 // Forward declarations 00030 namespace geos { 00031 namespace geom { 00032 class Envelope; 00033 class CoordinateFilter; 00034 class Coordinate; 00035 } 00036 } 00037 00038 namespace geos { 00039 namespace geom { // geos::geom 00040 00060 class GEOS_DLL CoordinateSequence { 00061 00062 protected: 00063 00064 CoordinateSequence() {} 00065 00066 CoordinateSequence(const CoordinateSequence&) {} 00067 00068 public: 00069 00070 typedef std::auto_ptr<CoordinateSequence> AutoPtr; 00071 00072 virtual ~CoordinateSequence() {} 00073 00077 virtual CoordinateSequence *clone() const=0; 00078 00085 //virtual const Coordinate& getCoordinate(int i) const=0; 00086 virtual const Coordinate& getAt(std::size_t i) const=0; 00087 00089 const Coordinate& back() const { 00090 return getAt(size()-1); 00091 } 00092 00094 const Coordinate& front() const { 00095 return getAt(0); 00096 } 00097 00098 const Coordinate& operator[] (std::size_t i) const { 00099 return getAt(i); 00100 } 00101 00105 virtual void getAt(std::size_t i, Coordinate& c) const=0; 00106 00111 //virtual int size() const=0; 00112 virtual std::size_t getSize() const=0; 00113 00114 size_t size() const { return getSize(); } 00115 00136 virtual const std::vector<Coordinate>* toVector() const=0; 00137 00139 // 00142 virtual void toVector(std::vector<Coordinate>& coords) const=0; 00143 00151 void add(const std::vector<Coordinate>* vc, bool allowRepeated); 00152 00153 /* This is here for backward compatibility.. */ 00154 //void add(CoordinateSequence *cl,bool allowRepeated,bool direction); 00155 00168 void add(const CoordinateSequence *cl, bool allowRepeated, 00169 bool direction); 00170 00178 virtual void add(const Coordinate& c, bool allowRepeated); 00179 00191 virtual void add(std::size_t i, const Coordinate& coord, bool allowRepeated)=0; 00192 00194 virtual bool isEmpty() const=0; 00195 00197 virtual void add(const Coordinate& c)=0; 00198 00199 // Get number of coordinates 00200 //virtual int getSize() const=0; 00201 00203 //virtual const Coordinate& getAt(std::size_t pos) const=0; 00204 00206 virtual void setAt(const Coordinate& c, std::size_t pos)=0; 00207 00209 virtual void deleteAt(std::size_t pos)=0; 00210 00212 virtual std::string toString() const=0; 00213 00215 virtual void setPoints(const std::vector<Coordinate> &v)=0; 00216 00218 bool hasRepeatedPoints() const; 00219 00221 const Coordinate* minCoordinate() const; 00222 00223 00232 static CoordinateSequence* removeRepeatedPoints( 00233 const CoordinateSequence *cl); 00234 00236 // 00239 virtual CoordinateSequence& removeRepeatedPoints()=0; 00240 00245 static bool hasRepeatedPoints(const CoordinateSequence *cl); 00246 00251 static CoordinateSequence* atLeastNCoordinatesOrNothing(std::size_t n, 00252 CoordinateSequence *c); 00253 00259 static const Coordinate* minCoordinate(CoordinateSequence *cl); 00260 00262 // 00266 static int indexOf(const Coordinate *coordinate, 00267 const CoordinateSequence *cl); 00268 00274 static bool equals(const CoordinateSequence *cl1, 00275 const CoordinateSequence *cl2); 00276 00278 static void scroll(CoordinateSequence *cl, const Coordinate *firstCoordinate); 00279 00297 static int increasingDirection(const CoordinateSequence& pts); 00298 00300 static void reverse(CoordinateSequence *cl); 00301 00303 enum { X,Y,Z,M }; 00304 00311 virtual std::size_t getDimension() const=0; 00312 00323 virtual double getOrdinate(std::size_t index, std::size_t ordinateIndex) const=0; 00324 00331 virtual double getX(std::size_t index) const { return getOrdinate(index, X); } 00332 00339 virtual double getY(std::size_t index) const { return getOrdinate(index, Y); } 00340 00341 00350 virtual void setOrdinate(std::size_t index, std::size_t ordinateIndex, double value)=0; 00351 00359 virtual void expandEnvelope(Envelope &env) const; 00360 00361 virtual void apply_rw(const CoordinateFilter *filter)=0; //Abstract 00362 virtual void apply_ro(CoordinateFilter *filter) const=0; //Abstract 00363 00372 template <class T> 00373 void applyCoordinateFilter(T& f) 00374 { 00375 Coordinate c; 00376 for(std::size_t i=0, n=size(); i<n; ++i) 00377 { 00378 getAt(i, c); 00379 f.filter(c); 00380 setAt(c, i); 00381 } 00382 } 00383 00384 }; 00385 00386 GEOS_DLL std::ostream& operator<< (std::ostream& os, const CoordinateSequence& cs); 00387 00388 GEOS_DLL bool operator== (const CoordinateSequence& s1, const CoordinateSequence& s2); 00389 00390 GEOS_DLL bool operator!= (const CoordinateSequence& s1, const CoordinateSequence& s2); 00391 00392 } // namespace geos::geom 00393 } // namespace geos 00394 00395 //#ifdef GEOS_INLINE 00396 //# include "geos/geom/CoordinateSequence.inl" 00397 //#endif 00398 00399 #endif // ndef GEOS_GEOM_COORDINATESEQUENCE_H 00400 00401 /********************************************************************** 00402 * $Log$ 00403 * Revision 1.12 2006/06/12 16:51:23 strk 00404 * Added equality and inequality operators and tests 00405 * 00406 * Revision 1.11 2006/06/12 16:36:22 strk 00407 * indentation, notes about things to be fixed. 00408 * 00409 * Revision 1.10 2006/06/12 15:06:30 strk 00410 * Added default ctor and copy ctor (protected) 00411 * 00412 * Revision 1.9 2006/06/12 10:10:39 strk 00413 * Fixed getGeometryN() to take size_t rather then int, changed unsigned int parameters to size_t. 00414 * 00415 * Revision 1.8 2006/05/04 08:42:12 strk 00416 * Added note about the CoordinateSequence::toVector() method. 00417 * 00418 * Revision 1.7 2006/05/03 19:47:27 strk 00419 * added operator<< for CoordinateSequence 00420 * 00421 * Revision 1.6 2006/05/03 08:58:34 strk 00422 * added new non-static CoordinateSequence::removeRepeatedPoints() mutator. 00423 * 00424 * Revision 1.5 2006/04/11 11:55:22 strk 00425 * Added CoordinateSequence::AutoPtr typedef 00426 * 00427 * Revision 1.4 2006/04/04 09:53:45 strk 00428 * Fixed applyCoordinateFilter() templated function body 00429 * 00430 * Revision 1.3 2006/03/24 09:52:41 strk 00431 * USE_INLINE => GEOS_INLINE 00432 * 00433 * Revision 1.2 2006/03/20 17:27:03 strk 00434 * Bug #72 - Missing <vector> header 00435 * 00436 * Revision 1.1 2006/03/09 16:46:49 strk 00437 * geos::geom namespace definition, first pass at headers split 00438 * 00439 **********************************************************************/