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00221 #ifndef _OGR_GEOMETRY_H_INCLUDED
00222 #define _OGR_GEOMETRY_H_INCLUDED
00223
00224 #include "ogr_core.h"
00225 #include "ogr_spatialref.h"
00226
00236 class OGRRawPoint
00237 {
00238 public:
00239 OGRRawPoint()
00240 {
00241 x = y = 0.0;
00242 }
00243 double x;
00244 double y;
00245 };
00246
00247 typedef struct GEOSGeom_t *GEOSGeom;
00248
00249
00250
00251
00252
00262 class CPL_DLL OGRGeometry
00263 {
00264 private:
00265 OGRSpatialReference * poSRS;
00266
00267 protected:
00268 int nCoordDimension;
00269
00270 public:
00271 OGRGeometry();
00272 virtual ~OGRGeometry();
00273
00274
00275 virtual int getDimension() const = 0;
00276 virtual int getCoordinateDimension() const;
00277 virtual OGRBoolean IsEmpty() const { return 0; }
00278 virtual OGRBoolean IsSimple() const { return 1; }
00279 virtual void empty() = 0;
00280 virtual OGRGeometry *clone() const = 0;
00281 virtual void getEnvelope( OGREnvelope * psEnvelope ) const = 0;
00282
00283
00284 virtual int WkbSize() const = 0;
00285 virtual OGRErr importFromWkb( unsigned char *, int=-1 )=0;
00286 virtual OGRErr exportToWkb( OGRwkbByteOrder, unsigned char * ) const = 0;
00287 virtual OGRErr importFromWkt( char ** ppszInput ) = 0;
00288 virtual OGRErr exportToWkt( char ** ppszDstText ) const = 0;
00289
00290
00291 virtual OGRwkbGeometryType getGeometryType() const = 0;
00292 virtual const char *getGeometryName() const = 0;
00293 virtual void dumpReadable( FILE *, const char * = NULL );
00294 virtual void flattenTo2D() = 0;
00295 virtual char * exportToGML() const;
00296 virtual GEOSGeom exportToGEOS() const;
00297 virtual void closeRings();
00298
00299 virtual void setCoordinateDimension( int nDimension );
00300
00301 void assignSpatialReference( OGRSpatialReference * poSR );
00302 OGRSpatialReference *getSpatialReference( void ) const { return poSRS; }
00303
00304 virtual OGRErr transform( OGRCoordinateTransformation *poCT ) = 0;
00305 OGRErr transformTo( OGRSpatialReference *poSR );
00306
00307
00308 virtual OGRBoolean Intersects( OGRGeometry * ) const;
00309 virtual OGRBoolean Equals( OGRGeometry * ) const = 0;
00310 virtual OGRBoolean Disjoint( const OGRGeometry * ) const;
00311 virtual OGRBoolean Touches( const OGRGeometry * ) const;
00312 virtual OGRBoolean Crosses( const OGRGeometry * ) const;
00313 virtual OGRBoolean Within( const OGRGeometry * ) const;
00314 virtual OGRBoolean Contains( const OGRGeometry * ) const;
00315 virtual OGRBoolean Overlaps( const OGRGeometry * ) const;
00316
00317
00318 virtual OGRGeometry *getBoundary() const;
00319 virtual double Distance( const OGRGeometry * ) const;
00320 virtual OGRGeometry *ConvexHull() const;
00321 virtual OGRGeometry *Buffer( double dfDist, int nQuadSegs = 30 ) const;
00322 virtual OGRGeometry *Intersection( const OGRGeometry *) const;
00323 virtual OGRGeometry *Union( const OGRGeometry * ) const;
00324 virtual OGRGeometry *Difference( const OGRGeometry * ) const;
00325 virtual OGRGeometry *SymmetricDifference( const OGRGeometry * ) const;
00326
00327
00328 OGRBoolean Intersect( OGRGeometry * ) const;
00329 OGRBoolean Equal( OGRGeometry * ) const;
00330
00331
00332 static int bGenerate_DB2_V72_BYTE_ORDER;
00333 };
00334
00335
00336
00337
00338
00345 class CPL_DLL OGRPoint : public OGRGeometry
00346 {
00347 double x;
00348 double y;
00349 double z;
00350
00351 public:
00352 OGRPoint();
00353 OGRPoint( double x, double y );
00354 OGRPoint( double x, double y, double z );
00355 virtual ~OGRPoint();
00356
00357
00358 virtual int WkbSize() const;
00359 virtual OGRErr importFromWkb( unsigned char *, int=-1 );
00360 virtual OGRErr exportToWkb( OGRwkbByteOrder, unsigned char * ) const;
00361 virtual OGRErr importFromWkt( char ** );
00362 virtual OGRErr exportToWkt( char ** ppszDstText ) const;
00363
00364
00365 virtual int getDimension() const;
00366 virtual OGRGeometry *clone() const;
00367 virtual void empty();
00368 virtual void getEnvelope( OGREnvelope * psEnvelope ) const;
00369
00370
00371 double getX() const { return x; }
00372 double getY() const { return y; }
00373 double getZ() const { return z; }
00374
00375
00376 void setX( double xIn ) { x = xIn; }
00377 void setY( double yIn ) { y = yIn; }
00378 void setZ( double zIn ) { z = zIn; nCoordDimension=3; }
00379
00380
00381 virtual OGRBoolean Equals( OGRGeometry * ) const;
00382
00383
00384 virtual const char *getGeometryName() const;
00385 virtual OGRwkbGeometryType getGeometryType() const;
00386 virtual OGRErr transform( OGRCoordinateTransformation *poCT );
00387 virtual void flattenTo2D();
00388
00389 };
00390
00391
00392
00393
00394
00399 class CPL_DLL OGRCurve : public OGRGeometry
00400 {
00401 public:
00402 OGRCurve();
00403 virtual ~OGRCurve();
00404
00405 virtual double get_Length() const = 0;
00406 virtual void StartPoint(OGRPoint *) const = 0;
00407 virtual void EndPoint(OGRPoint *) const = 0;
00408 virtual int get_IsClosed() const;
00409 virtual void Value( double, OGRPoint * ) const = 0;
00410
00411 };
00412
00413
00414
00415
00416
00421 class CPL_DLL OGRLineString : public OGRCurve
00422 {
00423 protected:
00424 int nPointCount;
00425 OGRRawPoint *paoPoints;
00426 double *padfZ;
00427
00428 void Make3D();
00429 void Make2D();
00430
00431 public:
00432 OGRLineString();
00433 virtual ~OGRLineString();
00434
00435
00436 virtual int WkbSize() const;
00437 virtual OGRErr importFromWkb( unsigned char *, int = -1 );
00438 virtual OGRErr exportToWkb( OGRwkbByteOrder, unsigned char * ) const;
00439 virtual OGRErr importFromWkt( char ** );
00440 virtual OGRErr exportToWkt( char ** ppszDstText ) const;
00441
00442
00443 virtual int getDimension() const;
00444 virtual OGRGeometry *clone() const;
00445 virtual void empty();
00446 virtual void getEnvelope( OGREnvelope * psEnvelope ) const;
00447
00448
00449 virtual double get_Length() const;
00450 virtual void StartPoint(OGRPoint *) const;
00451 virtual void EndPoint(OGRPoint *) const;
00452 virtual void Value( double, OGRPoint * ) const;
00453
00454
00455 int getNumPoints() const { return nPointCount; }
00456 void getPoint( int, OGRPoint * ) const;
00457 double getX( int i ) const { return paoPoints[i].x; }
00458 double getY( int i ) const { return paoPoints[i].y; }
00459 double getZ( int i ) const;
00460
00461
00462 virtual OGRBoolean Equals( OGRGeometry * ) const;
00463
00464
00465 virtual void setCoordinateDimension( int nDimension );
00466 void setNumPoints( int );
00467 void setPoint( int, OGRPoint * );
00468 void setPoint( int, double, double );
00469 void setPoint( int, double, double, double );
00470 void setPoints( int, OGRRawPoint *, double * = NULL );
00471 void setPoints( int, double * padfX, double * padfY,
00472 double *padfZ = NULL );
00473 void addPoint( OGRPoint * );
00474 void addPoint( double, double );
00475 void addPoint( double, double, double );
00476
00477 void getPoints( OGRRawPoint *, double * = NULL ) const;
00478
00479 void addSubLineString( const OGRLineString *,
00480 int nStartVertex = 0, int nEndVertex = -1 );
00481
00482
00483 virtual OGRwkbGeometryType getGeometryType() const;
00484 virtual const char *getGeometryName() const;
00485 virtual OGRErr transform( OGRCoordinateTransformation *poCT );
00486 virtual void flattenTo2D();
00487
00488 };
00489
00490
00491
00492
00493
00494
00495
00504 class CPL_DLL OGRLinearRing : public OGRLineString
00505 {
00506 private:
00507 friend class OGRPolygon;
00508
00509
00510 virtual int _WkbSize( int b3D ) const;
00511 virtual OGRErr _importFromWkb( OGRwkbByteOrder, int b3D,
00512 unsigned char *, int=-1 );
00513 virtual OGRErr _exportToWkb( OGRwkbByteOrder, int b3D,
00514 unsigned char * ) const;
00515
00516 public:
00517 OGRLinearRing();
00518 OGRLinearRing( OGRLinearRing * );
00519 ~OGRLinearRing();
00520
00521
00522 virtual const char *getGeometryName() const;
00523 virtual OGRGeometry *clone() const;
00524 virtual int isClockwise() const;
00525 virtual void closeRings();
00526 virtual double get_Area() const;
00527
00528
00529
00530
00531 virtual int WkbSize() const;
00532 virtual OGRErr importFromWkb( unsigned char *, int=-1 );
00533 virtual OGRErr exportToWkb( OGRwkbByteOrder, unsigned char * ) const;
00534 };
00535
00536
00537
00538
00539
00544 class CPL_DLL OGRSurface : public OGRGeometry
00545 {
00546 public:
00547 virtual double get_Area() const = 0;
00548 virtual OGRErr Centroid( OGRPoint * poPoint ) const = 0;
00549 virtual OGRErr PointOnSurface( OGRPoint * poPoint ) const = 0;
00550 };
00551
00552
00553
00554
00555
00565 class CPL_DLL OGRPolygon : public OGRSurface
00566 {
00567 int nRingCount;
00568 OGRLinearRing **papoRings;
00569
00570 public:
00571 OGRPolygon();
00572 virtual ~OGRPolygon();
00573
00574
00575 virtual const char *getGeometryName() const;
00576 virtual OGRwkbGeometryType getGeometryType() const;
00577 virtual OGRGeometry *clone() const;
00578 virtual void empty();
00579 virtual OGRErr transform( OGRCoordinateTransformation *poCT );
00580 virtual void flattenTo2D();
00581
00582
00583 virtual double get_Area() const;
00584 virtual int Centroid( OGRPoint * poPoint ) const;
00585 virtual int PointOnSurface( OGRPoint * poPoint ) const;
00586
00587
00588 virtual int WkbSize() const;
00589 virtual OGRErr importFromWkb( unsigned char *, int = -1 );
00590 virtual OGRErr exportToWkb( OGRwkbByteOrder, unsigned char * ) const;
00591 virtual OGRErr importFromWkt( char ** );
00592 virtual OGRErr exportToWkt( char ** ppszDstText ) const;
00593
00594
00595 virtual int getDimension() const;
00596 virtual void getEnvelope( OGREnvelope * psEnvelope ) const;
00597
00598
00599 virtual OGRBoolean Equals( OGRGeometry * ) const;
00600
00601
00602 virtual void setCoordinateDimension( int nDimension );
00603
00604 void addRing( OGRLinearRing * );
00605 void addRingDirectly( OGRLinearRing * );
00606
00607 OGRLinearRing *getExteriorRing();
00608 const OGRLinearRing *getExteriorRing() const;
00609 int getNumInteriorRings() const;
00610 OGRLinearRing *getInteriorRing( int );
00611 const OGRLinearRing *getInteriorRing( int ) const;
00612
00613 virtual void closeRings();
00614 };
00615
00616
00617
00618
00619
00627 class CPL_DLL OGRGeometryCollection : public OGRGeometry
00628 {
00629 int nGeomCount;
00630 OGRGeometry **papoGeoms;
00631
00632 int nCoordinateDimension;
00633
00634 public:
00635 OGRGeometryCollection();
00636 virtual ~OGRGeometryCollection();
00637
00638
00639 virtual const char *getGeometryName() const;
00640 virtual OGRwkbGeometryType getGeometryType() const;
00641 virtual OGRGeometry *clone() const;
00642 virtual void empty();
00643 virtual OGRErr transform( OGRCoordinateTransformation *poCT );
00644 virtual void flattenTo2D();
00645
00646
00647 virtual int WkbSize() const;
00648 virtual OGRErr importFromWkb( unsigned char *, int = -1 );
00649 virtual OGRErr exportToWkb( OGRwkbByteOrder, unsigned char * ) const;
00650 virtual OGRErr importFromWkt( char ** );
00651 virtual OGRErr exportToWkt( char ** ppszDstText ) const;
00652
00653
00654 virtual int getDimension() const;
00655 virtual void getEnvelope( OGREnvelope * psEnvelope ) const;
00656
00657
00658 int getNumGeometries() const;
00659 OGRGeometry *getGeometryRef( int );
00660 const OGRGeometry *getGeometryRef( int ) const;
00661
00662
00663 virtual OGRBoolean Equals( OGRGeometry * ) const;
00664
00665
00666 virtual void setCoordinateDimension( int nDimension );
00667 virtual OGRErr addGeometry( const OGRGeometry * );
00668 virtual OGRErr addGeometryDirectly( OGRGeometry * );
00669 virtual OGRErr removeGeometry( int iIndex, int bDelete = TRUE );
00670
00671 void closeRings();
00672 };
00673
00674
00675
00676
00677
00685 class CPL_DLL OGRMultiPolygon : public OGRGeometryCollection
00686 {
00687 public:
00688 OGRMultiPolygon();
00689
00690 virtual const char *getGeometryName() const;
00691 virtual OGRwkbGeometryType getGeometryType() const;
00692 virtual OGRGeometry *clone() const;
00693 virtual OGRErr importFromWkt( char ** );
00694 virtual OGRErr exportToWkt( char ** ) const;
00695
00696
00697 virtual OGRErr addGeometryDirectly( OGRGeometry * );
00698
00699 double get_Area() const;
00700 };
00701
00702
00703
00704
00705
00710 class CPL_DLL OGRMultiPoint : public OGRGeometryCollection
00711 {
00712 private:
00713 OGRErr importFromWkt_Bracketed( char ** );
00714
00715 public:
00716 OGRMultiPoint();
00717
00718 virtual const char *getGeometryName() const;
00719 virtual OGRwkbGeometryType getGeometryType() const;
00720 virtual OGRGeometry *clone() const;
00721 virtual OGRErr importFromWkt( char ** );
00722 virtual OGRErr exportToWkt( char ** ) const;
00723
00724
00725 virtual OGRErr addGeometryDirectly( OGRGeometry * );
00726 };
00727
00728
00729
00730
00731
00736 class CPL_DLL OGRMultiLineString : public OGRGeometryCollection
00737 {
00738 public:
00739 OGRMultiLineString();
00740 ~OGRMultiLineString();
00741
00742 virtual const char *getGeometryName() const;
00743 virtual OGRwkbGeometryType getGeometryType() const;
00744 virtual OGRGeometry *clone() const;
00745 virtual OGRErr importFromWkt( char ** );
00746 virtual OGRErr exportToWkt( char ** ) const;
00747
00748
00749 virtual OGRErr addGeometryDirectly( OGRGeometry * );
00750 };
00751
00752
00753
00754
00755
00756
00761 class CPL_DLL OGRGeometryFactory
00762 {
00763 public:
00764 static OGRErr createFromWkb( unsigned char *, OGRSpatialReference *,
00765 OGRGeometry **, int = -1 );
00766 static OGRErr createFromWkt( char **, OGRSpatialReference *,
00767 OGRGeometry ** );
00768 static OGRGeometry *createFromGML( const char * );
00769 static OGRGeometry *createFromGEOS( GEOSGeom );
00770
00771 static void destroyGeometry( OGRGeometry * );
00772 static OGRGeometry *createGeometry( OGRwkbGeometryType );
00773
00774 static OGRGeometry * forceToPolygon( OGRGeometry * );
00775 static OGRGeometry * forceToMultiPolygon( OGRGeometry * );
00776 static OGRGeometry * forceToMultiPoint( OGRGeometry * );
00777 static OGRGeometry * forceToMultiLineString( OGRGeometry * );
00778
00779 static void *getGEOSGeometryFactory();
00780
00781 static int haveGEOS();
00782
00783 };
00784
00785 #endif