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00194 #ifndef _OGR_GEOMETRY_H_INCLUDED
00195 #define _OGR_GEOMETRY_H_INCLUDED
00196
00197 #include "ogr_core.h"
00198 #include "ogr_spatialref.h"
00199
00209 class OGRRawPoint
00210 {
00211 public:
00212 OGRRawPoint()
00213 {
00214 x = y = 0.0;
00215 }
00216 double x;
00217 double y;
00218 };
00219
00220 namespace geos {
00221 class Geometry;
00222 class GeometryFactory;
00223 };
00224
00225
00226
00227
00228
00238 class CPL_DLL OGRGeometry
00239 {
00240 private:
00241 OGRSpatialReference * poSRS;
00242
00243 public:
00244 OGRGeometry();
00245 virtual ~OGRGeometry();
00246
00247
00248 virtual int getDimension() const = 0;
00249 virtual int getCoordinateDimension() const = 0;
00250 virtual OGRBoolean IsEmpty() const { return 0; }
00251 virtual OGRBoolean IsSimple() const { return 1; }
00252 virtual void empty() = 0;
00253 virtual OGRGeometry *clone() const = 0;
00254 virtual void getEnvelope( OGREnvelope * psEnvelope ) const = 0;
00255
00256
00257 virtual int WkbSize() const = 0;
00258 virtual OGRErr importFromWkb( unsigned char *, int=-1 )=0;
00259 virtual OGRErr exportToWkb( OGRwkbByteOrder, unsigned char * ) const = 0;
00260 virtual OGRErr importFromWkt( char ** ppszInput ) = 0;
00261 virtual OGRErr exportToWkt( char ** ppszDstText ) const = 0;
00262
00263
00264 virtual OGRwkbGeometryType getGeometryType() const = 0;
00265 virtual const char *getGeometryName() const = 0;
00266 virtual void dumpReadable( FILE *, const char * = NULL );
00267 virtual void flattenTo2D() = 0;
00268 virtual char * exportToGML() const;
00269 virtual geos::Geometry *exportToGEOS() const;
00270 virtual void closeRings();
00271
00272 void assignSpatialReference( OGRSpatialReference * poSR );
00273 OGRSpatialReference *getSpatialReference( void ) const { return poSRS; }
00274
00275 virtual OGRErr transform( OGRCoordinateTransformation *poCT ) = 0;
00276 OGRErr transformTo( OGRSpatialReference *poSR );
00277
00278
00279 virtual OGRBoolean Intersects( OGRGeometry * ) const;
00280 virtual OGRBoolean Equals( OGRGeometry * ) const = 0;
00281 virtual OGRBoolean Disjoint( const OGRGeometry * ) const;
00282 virtual OGRBoolean Touches( const OGRGeometry * ) const;
00283 virtual OGRBoolean Crosses( const OGRGeometry * ) const;
00284 virtual OGRBoolean Within( const OGRGeometry * ) const;
00285 virtual OGRBoolean Contains( const OGRGeometry * ) const;
00286 virtual OGRBoolean Overlaps( const OGRGeometry * ) const;
00287
00288
00289 virtual OGRGeometry *getBoundary() const;
00290 virtual double Distance( const OGRGeometry * ) const;
00291 virtual OGRGeometry *ConvexHull() const;
00292 virtual OGRGeometry *Buffer( double dfDist, int nQuadSegs = 30 ) const;
00293 virtual OGRGeometry *Intersection( const OGRGeometry *) const;
00294 virtual OGRGeometry *Union( const OGRGeometry * ) const;
00295 virtual OGRGeometry *Difference( const OGRGeometry * ) const;
00296 virtual OGRGeometry *SymmetricDifference( const OGRGeometry * ) const;
00297
00298
00299 OGRBoolean Intersect( OGRGeometry * ) const;
00300 OGRBoolean Equal( OGRGeometry * ) const;
00301
00302
00303 static int bGenerate_DB2_V72_BYTE_ORDER;
00304 };
00305
00306
00307
00308
00309
00316 class CPL_DLL OGRPoint : public OGRGeometry
00317 {
00318 double x;
00319 double y;
00320 double z;
00321
00322 public:
00323 OGRPoint();
00324 OGRPoint( double x, double y, double z = 0.0 );
00325 virtual ~OGRPoint();
00326
00327
00328 virtual int WkbSize() const;
00329 virtual OGRErr importFromWkb( unsigned char *, int=-1 );
00330 virtual OGRErr exportToWkb( OGRwkbByteOrder, unsigned char * ) const;
00331 virtual OGRErr importFromWkt( char ** );
00332 virtual OGRErr exportToWkt( char ** ppszDstText ) const;
00333
00334
00335 virtual int getDimension() const;
00336 virtual int getCoordinateDimension() const;
00337 virtual OGRGeometry *clone() const;
00338 virtual void empty();
00339 virtual void getEnvelope( OGREnvelope * psEnvelope ) const;
00340
00341
00342 double getX() const { return x; }
00343 double getY() const { return y; }
00344 double getZ() const { return z; }
00345
00346
00347 void setX( double xIn ) { x = xIn; }
00348 void setY( double yIn ) { y = yIn; }
00349 void setZ( double zIn ) { z = zIn; }
00350
00351
00352 virtual OGRBoolean Equals( OGRGeometry * ) const;
00353
00354
00355 virtual const char *getGeometryName() const;
00356 virtual OGRwkbGeometryType getGeometryType() const;
00357 virtual OGRErr transform( OGRCoordinateTransformation *poCT );
00358 virtual void flattenTo2D();
00359
00360 };
00361
00362
00363
00364
00365
00370 class CPL_DLL OGRCurve : public OGRGeometry
00371 {
00372 public:
00373 OGRCurve();
00374 virtual ~OGRCurve();
00375
00376 virtual double get_Length() const = 0;
00377 virtual void StartPoint(OGRPoint *) const = 0;
00378 virtual void EndPoint(OGRPoint *) const = 0;
00379 virtual int get_IsClosed() const;
00380 virtual void Value( double, OGRPoint * ) const = 0;
00381
00382 };
00383
00384
00385
00386
00387
00392 class CPL_DLL OGRLineString : public OGRCurve
00393 {
00394 protected:
00395 int nPointCount;
00396 OGRRawPoint *paoPoints;
00397 double *padfZ;
00398
00399 void Make3D();
00400 void Make2D();
00401
00402 public:
00403 OGRLineString();
00404 virtual ~OGRLineString();
00405
00406
00407 virtual int WkbSize() const;
00408 virtual OGRErr importFromWkb( unsigned char *, int = -1 );
00409 virtual OGRErr exportToWkb( OGRwkbByteOrder, unsigned char * ) const;
00410 virtual OGRErr importFromWkt( char ** );
00411 virtual OGRErr exportToWkt( char ** ppszDstText ) const;
00412
00413
00414 virtual int getDimension() const;
00415 virtual int getCoordinateDimension() const;
00416 virtual OGRGeometry *clone() const;
00417 virtual void empty();
00418 virtual void getEnvelope( OGREnvelope * psEnvelope ) const;
00419
00420
00421 virtual double get_Length() const;
00422 virtual void StartPoint(OGRPoint *) const;
00423 virtual void EndPoint(OGRPoint *) const;
00424 virtual void Value( double, OGRPoint * ) const;
00425
00426
00427 int getNumPoints() const { return nPointCount; }
00428 void getPoint( int, OGRPoint * ) const;
00429 double getX( int i ) const { return paoPoints[i].x; }
00430 double getY( int i ) const { return paoPoints[i].y; }
00431 double getZ( int i ) const;
00432
00433
00434 virtual OGRBoolean Equals( OGRGeometry * ) const;
00435
00436
00437 void setNumPoints( int );
00438 void setPoint( int, OGRPoint * );
00439 void setPoint( int, double, double, double = 0.0 );
00440 void setPoints( int, OGRRawPoint *, double * = NULL );
00441 void setPoints( int, double * padfX, double * padfY,
00442 double *padfZ = NULL );
00443 void addPoint( OGRPoint * );
00444 void addPoint( double, double, double = 0.0 );
00445
00446
00447 virtual OGRwkbGeometryType getGeometryType() const;
00448 virtual const char *getGeometryName() const;
00449 virtual OGRErr transform( OGRCoordinateTransformation *poCT );
00450 virtual void flattenTo2D();
00451
00452 };
00453
00454
00455
00456
00457
00458
00459
00468 class CPL_DLL OGRLinearRing : public OGRLineString
00469 {
00470 private:
00471 friend class OGRPolygon;
00472
00473
00474 virtual int _WkbSize( int b3D ) const;
00475 virtual OGRErr _importFromWkb( OGRwkbByteOrder, int b3D,
00476 unsigned char *, int=-1 );
00477 virtual OGRErr _exportToWkb( OGRwkbByteOrder, int b3D,
00478 unsigned char * ) const;
00479
00480 public:
00481 OGRLinearRing();
00482 OGRLinearRing( OGRLinearRing * );
00483 ~OGRLinearRing();
00484
00485
00486 virtual const char *getGeometryName() const;
00487 virtual OGRGeometry *clone() const;
00488 virtual int isClockwise() const;
00489 virtual void closeRings();
00490 virtual double get_Area() const;
00491
00492
00493
00494
00495 virtual int WkbSize() const;
00496 virtual OGRErr importFromWkb( unsigned char *, int=-1 );
00497 virtual OGRErr exportToWkb( OGRwkbByteOrder, unsigned char * ) const;
00498 };
00499
00500
00501
00502
00503
00508 class CPL_DLL OGRSurface : public OGRGeometry
00509 {
00510 public:
00511 virtual double get_Area() const = 0;
00512 virtual OGRErr Centroid( OGRPoint * poPoint ) const = 0;
00513 virtual OGRErr PointOnSurface( OGRPoint * poPoint ) const = 0;
00514 };
00515
00516
00517
00518
00519
00529 class CPL_DLL OGRPolygon : public OGRSurface
00530 {
00531 int nRingCount;
00532 OGRLinearRing **papoRings;
00533
00534 public:
00535 OGRPolygon();
00536 virtual ~OGRPolygon();
00537
00538
00539 virtual const char *getGeometryName() const;
00540 virtual OGRwkbGeometryType getGeometryType() const;
00541 virtual OGRGeometry *clone() const;
00542 virtual void empty();
00543 virtual OGRErr transform( OGRCoordinateTransformation *poCT );
00544 virtual void flattenTo2D();
00545
00546
00547 virtual double get_Area() const;
00548 virtual int Centroid( OGRPoint * poPoint ) const;
00549 virtual int PointOnSurface( OGRPoint * poPoint ) const;
00550
00551
00552 virtual int WkbSize() const;
00553 virtual OGRErr importFromWkb( unsigned char *, int = -1 );
00554 virtual OGRErr exportToWkb( OGRwkbByteOrder, unsigned char * ) const;
00555 virtual OGRErr importFromWkt( char ** );
00556 virtual OGRErr exportToWkt( char ** ppszDstText ) const;
00557
00558
00559 virtual int getDimension() const;
00560 virtual int getCoordinateDimension() const;
00561 virtual void getEnvelope( OGREnvelope * psEnvelope ) const;
00562
00563
00564 virtual OGRBoolean Equals( OGRGeometry * ) const;
00565
00566
00567 void addRing( OGRLinearRing * );
00568 void addRingDirectly( OGRLinearRing * );
00569
00570 OGRLinearRing *getExteriorRing();
00571 const OGRLinearRing *getExteriorRing() const;
00572 int getNumInteriorRings() const;
00573 OGRLinearRing *getInteriorRing( int );
00574 const OGRLinearRing *getInteriorRing( int ) const;
00575
00576 virtual void closeRings();
00577 };
00578
00579
00580
00581
00582
00590 class CPL_DLL OGRGeometryCollection : public OGRGeometry
00591 {
00592 int nGeomCount;
00593 OGRGeometry **papoGeoms;
00594
00595 int nCoordinateDimension;
00596
00597 public:
00598 OGRGeometryCollection();
00599 virtual ~OGRGeometryCollection();
00600
00601
00602 virtual const char *getGeometryName() const;
00603 virtual OGRwkbGeometryType getGeometryType() const;
00604 virtual OGRGeometry *clone() const;
00605 virtual void empty();
00606 virtual OGRErr transform( OGRCoordinateTransformation *poCT );
00607 virtual void flattenTo2D();
00608
00609
00610 virtual int WkbSize() const;
00611 virtual OGRErr importFromWkb( unsigned char *, int = -1 );
00612 virtual OGRErr exportToWkb( OGRwkbByteOrder, unsigned char * ) const;
00613 virtual OGRErr importFromWkt( char ** );
00614 virtual OGRErr exportToWkt( char ** ppszDstText ) const;
00615
00616
00617 virtual int getDimension() const;
00618 virtual int getCoordinateDimension() const;
00619 virtual void getEnvelope( OGREnvelope * psEnvelope ) const;
00620
00621
00622 int getNumGeometries() const;
00623 OGRGeometry *getGeometryRef( int );
00624 const OGRGeometry *getGeometryRef( int ) const;
00625
00626
00627 virtual OGRBoolean Equals( OGRGeometry * ) const;
00628
00629
00630 virtual OGRErr addGeometry( const OGRGeometry * );
00631 virtual OGRErr addGeometryDirectly( OGRGeometry * );
00632 virtual OGRErr removeGeometry( int iIndex, int bDelete = TRUE );
00633
00634 void closeRings();
00635 };
00636
00637
00638
00639
00640
00648 class CPL_DLL OGRMultiPolygon : public OGRGeometryCollection
00649 {
00650 public:
00651 OGRMultiPolygon();
00652
00653 virtual const char *getGeometryName() const;
00654 virtual OGRwkbGeometryType getGeometryType() const;
00655 virtual OGRGeometry *clone() const;
00656 virtual OGRErr importFromWkt( char ** );
00657 virtual OGRErr exportToWkt( char ** ) const;
00658
00659
00660 virtual OGRErr addGeometryDirectly( OGRGeometry * );
00661
00662 double get_Area() const;
00663 };
00664
00665
00666
00667
00668
00673 class CPL_DLL OGRMultiPoint : public OGRGeometryCollection
00674 {
00675 private:
00676 OGRErr importFromWkt_Bracketed( char ** );
00677
00678 public:
00679 OGRMultiPoint();
00680
00681 virtual const char *getGeometryName() const;
00682 virtual OGRwkbGeometryType getGeometryType() const;
00683 virtual OGRGeometry *clone() const;
00684 virtual OGRErr importFromWkt( char ** );
00685 virtual OGRErr exportToWkt( char ** ) const;
00686
00687
00688 virtual OGRErr addGeometryDirectly( OGRGeometry * );
00689 };
00690
00691
00692
00693
00694
00699 class CPL_DLL OGRMultiLineString : public OGRGeometryCollection
00700 {
00701 public:
00702 OGRMultiLineString();
00703 ~OGRMultiLineString();
00704
00705 virtual const char *getGeometryName() const;
00706 virtual OGRwkbGeometryType getGeometryType() const;
00707 virtual OGRGeometry *clone() const;
00708 virtual OGRErr importFromWkt( char ** );
00709 virtual OGRErr exportToWkt( char ** ) const;
00710
00711
00712 virtual OGRErr addGeometryDirectly( OGRGeometry * );
00713 };
00714
00715
00716
00717
00718
00719
00724 class CPL_DLL OGRGeometryFactory
00725 {
00726 public:
00727 static OGRErr createFromWkb( unsigned char *, OGRSpatialReference *,
00728 OGRGeometry **, int = -1 );
00729 static OGRErr createFromWkt( char **, OGRSpatialReference *,
00730 OGRGeometry ** );
00731 static OGRGeometry *createFromGML( const char * );
00732 static OGRGeometry *createFromGEOS( const geos::Geometry * );
00733
00734 static void destroyGeometry( OGRGeometry * );
00735 static OGRGeometry *createGeometry( OGRwkbGeometryType );
00736
00737 static OGRGeometry * forceToPolygon( OGRGeometry * );
00738 static OGRGeometry * forceToMultiPolygon( OGRGeometry * );
00739 static OGRGeometry * forceToMultiPoint( OGRGeometry * );
00740 static OGRGeometry * forceToMultiLineString( OGRGeometry * );
00741
00742 static geos::GeometryFactory *getGEOSGeometryFactory();
00743
00744 static int haveGEOS();
00745
00746 };
00747
00748 #endif