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00206 #ifndef _OGR_GEOMETRY_H_INCLUDED
00207 #define _OGR_GEOMETRY_H_INCLUDED
00208
00209 #include "ogr_core.h"
00210 #include "ogr_spatialref.h"
00211
00221 class OGRRawPoint
00222 {
00223 public:
00224 OGRRawPoint()
00225 {
00226 x = y = 0.0;
00227 }
00228 double x;
00229 double y;
00230 };
00231
00232 namespace geos {
00233 class Geometry;
00234 class GeometryFactory;
00235 };
00236
00237
00238
00239
00240
00250 class CPL_DLL OGRGeometry
00251 {
00252 private:
00253 OGRSpatialReference * poSRS;
00254
00255 protected:
00256 int nCoordDimension;
00257
00258 public:
00259 OGRGeometry();
00260 virtual ~OGRGeometry();
00261
00262
00263 virtual int getDimension() const = 0;
00264 virtual int getCoordinateDimension() const;
00265 virtual OGRBoolean IsEmpty() const { return 0; }
00266 virtual OGRBoolean IsSimple() const { return 1; }
00267 virtual void empty() = 0;
00268 virtual OGRGeometry *clone() const = 0;
00269 virtual void getEnvelope( OGREnvelope * psEnvelope ) const = 0;
00270
00271
00272 virtual int WkbSize() const = 0;
00273 virtual OGRErr importFromWkb( unsigned char *, int=-1 )=0;
00274 virtual OGRErr exportToWkb( OGRwkbByteOrder, unsigned char * ) const = 0;
00275 virtual OGRErr importFromWkt( char ** ppszInput ) = 0;
00276 virtual OGRErr exportToWkt( char ** ppszDstText ) const = 0;
00277
00278
00279 virtual OGRwkbGeometryType getGeometryType() const = 0;
00280 virtual const char *getGeometryName() const = 0;
00281 virtual void dumpReadable( FILE *, const char * = NULL );
00282 virtual void flattenTo2D() = 0;
00283 virtual char * exportToGML() const;
00284 virtual geos::Geometry *exportToGEOS() const;
00285 virtual void closeRings();
00286
00287 virtual void setCoordinateDimension( int nDimension );
00288
00289 void assignSpatialReference( OGRSpatialReference * poSR );
00290 OGRSpatialReference *getSpatialReference( void ) const { return poSRS; }
00291
00292 virtual OGRErr transform( OGRCoordinateTransformation *poCT ) = 0;
00293 OGRErr transformTo( OGRSpatialReference *poSR );
00294
00295
00296 virtual OGRBoolean Intersects( OGRGeometry * ) const;
00297 virtual OGRBoolean Equals( OGRGeometry * ) const = 0;
00298 virtual OGRBoolean Disjoint( const OGRGeometry * ) const;
00299 virtual OGRBoolean Touches( const OGRGeometry * ) const;
00300 virtual OGRBoolean Crosses( const OGRGeometry * ) const;
00301 virtual OGRBoolean Within( const OGRGeometry * ) const;
00302 virtual OGRBoolean Contains( const OGRGeometry * ) const;
00303 virtual OGRBoolean Overlaps( const OGRGeometry * ) const;
00304
00305
00306 virtual OGRGeometry *getBoundary() const;
00307 virtual double Distance( const OGRGeometry * ) const;
00308 virtual OGRGeometry *ConvexHull() const;
00309 virtual OGRGeometry *Buffer( double dfDist, int nQuadSegs = 30 ) const;
00310 virtual OGRGeometry *Intersection( const OGRGeometry *) const;
00311 virtual OGRGeometry *Union( const OGRGeometry * ) const;
00312 virtual OGRGeometry *Difference( const OGRGeometry * ) const;
00313 virtual OGRGeometry *SymmetricDifference( const OGRGeometry * ) const;
00314
00315
00316 OGRBoolean Intersect( OGRGeometry * ) const;
00317 OGRBoolean Equal( OGRGeometry * ) const;
00318
00319
00320 static int bGenerate_DB2_V72_BYTE_ORDER;
00321 };
00322
00323
00324
00325
00326
00333 class CPL_DLL OGRPoint : public OGRGeometry
00334 {
00335 double x;
00336 double y;
00337 double z;
00338
00339 public:
00340 OGRPoint();
00341 OGRPoint( double x, double y );
00342 OGRPoint( double x, double y, double z );
00343 virtual ~OGRPoint();
00344
00345
00346 virtual int WkbSize() const;
00347 virtual OGRErr importFromWkb( unsigned char *, int=-1 );
00348 virtual OGRErr exportToWkb( OGRwkbByteOrder, unsigned char * ) const;
00349 virtual OGRErr importFromWkt( char ** );
00350 virtual OGRErr exportToWkt( char ** ppszDstText ) const;
00351
00352
00353 virtual int getDimension() const;
00354 virtual OGRGeometry *clone() const;
00355 virtual void empty();
00356 virtual void getEnvelope( OGREnvelope * psEnvelope ) const;
00357
00358
00359 double getX() const { return x; }
00360 double getY() const { return y; }
00361 double getZ() const { return z; }
00362
00363
00364 void setX( double xIn ) { x = xIn; }
00365 void setY( double yIn ) { y = yIn; }
00366 void setZ( double zIn ) { z = zIn; nCoordDimension=3; }
00367
00368
00369 virtual OGRBoolean Equals( OGRGeometry * ) const;
00370
00371
00372 virtual const char *getGeometryName() const;
00373 virtual OGRwkbGeometryType getGeometryType() const;
00374 virtual OGRErr transform( OGRCoordinateTransformation *poCT );
00375 virtual void flattenTo2D();
00376
00377 };
00378
00379
00380
00381
00382
00387 class CPL_DLL OGRCurve : public OGRGeometry
00388 {
00389 public:
00390 OGRCurve();
00391 virtual ~OGRCurve();
00392
00393 virtual double get_Length() const = 0;
00394 virtual void StartPoint(OGRPoint *) const = 0;
00395 virtual void EndPoint(OGRPoint *) const = 0;
00396 virtual int get_IsClosed() const;
00397 virtual void Value( double, OGRPoint * ) const = 0;
00398
00399 };
00400
00401
00402
00403
00404
00409 class CPL_DLL OGRLineString : public OGRCurve
00410 {
00411 protected:
00412 int nPointCount;
00413 OGRRawPoint *paoPoints;
00414 double *padfZ;
00415
00416 void Make3D();
00417 void Make2D();
00418
00419 public:
00420 OGRLineString();
00421 virtual ~OGRLineString();
00422
00423
00424 virtual int WkbSize() const;
00425 virtual OGRErr importFromWkb( unsigned char *, int = -1 );
00426 virtual OGRErr exportToWkb( OGRwkbByteOrder, unsigned char * ) const;
00427 virtual OGRErr importFromWkt( char ** );
00428 virtual OGRErr exportToWkt( char ** ppszDstText ) const;
00429
00430
00431 virtual int getDimension() const;
00432 virtual OGRGeometry *clone() const;
00433 virtual void empty();
00434 virtual void getEnvelope( OGREnvelope * psEnvelope ) const;
00435
00436
00437 virtual double get_Length() const;
00438 virtual void StartPoint(OGRPoint *) const;
00439 virtual void EndPoint(OGRPoint *) const;
00440 virtual void Value( double, OGRPoint * ) const;
00441
00442
00443 int getNumPoints() const { return nPointCount; }
00444 void getPoint( int, OGRPoint * ) const;
00445 double getX( int i ) const { return paoPoints[i].x; }
00446 double getY( int i ) const { return paoPoints[i].y; }
00447 double getZ( int i ) const;
00448
00449
00450 virtual OGRBoolean Equals( OGRGeometry * ) const;
00451
00452
00453 virtual void setCoordinateDimension( int nDimension );
00454 void setNumPoints( int );
00455 void setPoint( int, OGRPoint * );
00456 void setPoint( int, double, double );
00457 void setPoint( int, double, double, double );
00458 void setPoints( int, OGRRawPoint *, double * = NULL );
00459 void setPoints( int, double * padfX, double * padfY,
00460 double *padfZ = NULL );
00461 void addPoint( OGRPoint * );
00462 void addPoint( double, double );
00463 void addPoint( double, double, double );
00464
00465 void getPoints( OGRRawPoint *, double * = NULL );
00466
00467 void addSubLineString( const OGRLineString *,
00468 int nStartVertex = 0, int nEndVertex = -1 );
00469
00470
00471 virtual OGRwkbGeometryType getGeometryType() const;
00472 virtual const char *getGeometryName() const;
00473 virtual OGRErr transform( OGRCoordinateTransformation *poCT );
00474 virtual void flattenTo2D();
00475
00476 };
00477
00478
00479
00480
00481
00482
00483
00492 class CPL_DLL OGRLinearRing : public OGRLineString
00493 {
00494 private:
00495 friend class OGRPolygon;
00496
00497
00498 virtual int _WkbSize( int b3D ) const;
00499 virtual OGRErr _importFromWkb( OGRwkbByteOrder, int b3D,
00500 unsigned char *, int=-1 );
00501 virtual OGRErr _exportToWkb( OGRwkbByteOrder, int b3D,
00502 unsigned char * ) const;
00503
00504 public:
00505 OGRLinearRing();
00506 OGRLinearRing( OGRLinearRing * );
00507 ~OGRLinearRing();
00508
00509
00510 virtual const char *getGeometryName() const;
00511 virtual OGRGeometry *clone() const;
00512 virtual int isClockwise() const;
00513 virtual void closeRings();
00514 virtual double get_Area() const;
00515
00516
00517
00518
00519 virtual int WkbSize() const;
00520 virtual OGRErr importFromWkb( unsigned char *, int=-1 );
00521 virtual OGRErr exportToWkb( OGRwkbByteOrder, unsigned char * ) const;
00522 };
00523
00524
00525
00526
00527
00532 class CPL_DLL OGRSurface : public OGRGeometry
00533 {
00534 public:
00535 virtual double get_Area() const = 0;
00536 virtual OGRErr Centroid( OGRPoint * poPoint ) const = 0;
00537 virtual OGRErr PointOnSurface( OGRPoint * poPoint ) const = 0;
00538 };
00539
00540
00541
00542
00543
00553 class CPL_DLL OGRPolygon : public OGRSurface
00554 {
00555 int nRingCount;
00556 OGRLinearRing **papoRings;
00557
00558 public:
00559 OGRPolygon();
00560 virtual ~OGRPolygon();
00561
00562
00563 virtual const char *getGeometryName() const;
00564 virtual OGRwkbGeometryType getGeometryType() const;
00565 virtual OGRGeometry *clone() const;
00566 virtual void empty();
00567 virtual OGRErr transform( OGRCoordinateTransformation *poCT );
00568 virtual void flattenTo2D();
00569
00570
00571 virtual double get_Area() const;
00572 virtual int Centroid( OGRPoint * poPoint ) const;
00573 virtual int PointOnSurface( OGRPoint * poPoint ) const;
00574
00575
00576 virtual int WkbSize() const;
00577 virtual OGRErr importFromWkb( unsigned char *, int = -1 );
00578 virtual OGRErr exportToWkb( OGRwkbByteOrder, unsigned char * ) const;
00579 virtual OGRErr importFromWkt( char ** );
00580 virtual OGRErr exportToWkt( char ** ppszDstText ) const;
00581
00582
00583 virtual int getDimension() const;
00584 virtual void getEnvelope( OGREnvelope * psEnvelope ) const;
00585
00586
00587 virtual OGRBoolean Equals( OGRGeometry * ) const;
00588
00589
00590 virtual void setCoordinateDimension( int nDimension );
00591
00592 void addRing( OGRLinearRing * );
00593 void addRingDirectly( OGRLinearRing * );
00594
00595 OGRLinearRing *getExteriorRing();
00596 const OGRLinearRing *getExteriorRing() const;
00597 int getNumInteriorRings() const;
00598 OGRLinearRing *getInteriorRing( int );
00599 const OGRLinearRing *getInteriorRing( int ) const;
00600
00601 virtual void closeRings();
00602 };
00603
00604
00605
00606
00607
00615 class CPL_DLL OGRGeometryCollection : public OGRGeometry
00616 {
00617 int nGeomCount;
00618 OGRGeometry **papoGeoms;
00619
00620 int nCoordinateDimension;
00621
00622 public:
00623 OGRGeometryCollection();
00624 virtual ~OGRGeometryCollection();
00625
00626
00627 virtual const char *getGeometryName() const;
00628 virtual OGRwkbGeometryType getGeometryType() const;
00629 virtual OGRGeometry *clone() const;
00630 virtual void empty();
00631 virtual OGRErr transform( OGRCoordinateTransformation *poCT );
00632 virtual void flattenTo2D();
00633
00634
00635 virtual int WkbSize() const;
00636 virtual OGRErr importFromWkb( unsigned char *, int = -1 );
00637 virtual OGRErr exportToWkb( OGRwkbByteOrder, unsigned char * ) const;
00638 virtual OGRErr importFromWkt( char ** );
00639 virtual OGRErr exportToWkt( char ** ppszDstText ) const;
00640
00641
00642 virtual int getDimension() const;
00643 virtual void getEnvelope( OGREnvelope * psEnvelope ) const;
00644
00645
00646 int getNumGeometries() const;
00647 OGRGeometry *getGeometryRef( int );
00648 const OGRGeometry *getGeometryRef( int ) const;
00649
00650
00651 virtual OGRBoolean Equals( OGRGeometry * ) const;
00652
00653
00654 virtual void setCoordinateDimension( int nDimension );
00655 virtual OGRErr addGeometry( const OGRGeometry * );
00656 virtual OGRErr addGeometryDirectly( OGRGeometry * );
00657 virtual OGRErr removeGeometry( int iIndex, int bDelete = TRUE );
00658
00659 void closeRings();
00660 };
00661
00662
00663
00664
00665
00673 class CPL_DLL OGRMultiPolygon : public OGRGeometryCollection
00674 {
00675 public:
00676 OGRMultiPolygon();
00677
00678 virtual const char *getGeometryName() const;
00679 virtual OGRwkbGeometryType getGeometryType() const;
00680 virtual OGRGeometry *clone() const;
00681 virtual OGRErr importFromWkt( char ** );
00682 virtual OGRErr exportToWkt( char ** ) const;
00683
00684
00685 virtual OGRErr addGeometryDirectly( OGRGeometry * );
00686
00687 double get_Area() const;
00688 };
00689
00690
00691
00692
00693
00698 class CPL_DLL OGRMultiPoint : public OGRGeometryCollection
00699 {
00700 private:
00701 OGRErr importFromWkt_Bracketed( char ** );
00702
00703 public:
00704 OGRMultiPoint();
00705
00706 virtual const char *getGeometryName() const;
00707 virtual OGRwkbGeometryType getGeometryType() const;
00708 virtual OGRGeometry *clone() const;
00709 virtual OGRErr importFromWkt( char ** );
00710 virtual OGRErr exportToWkt( char ** ) const;
00711
00712
00713 virtual OGRErr addGeometryDirectly( OGRGeometry * );
00714 };
00715
00716
00717
00718
00719
00724 class CPL_DLL OGRMultiLineString : public OGRGeometryCollection
00725 {
00726 public:
00727 OGRMultiLineString();
00728 ~OGRMultiLineString();
00729
00730 virtual const char *getGeometryName() const;
00731 virtual OGRwkbGeometryType getGeometryType() const;
00732 virtual OGRGeometry *clone() const;
00733 virtual OGRErr importFromWkt( char ** );
00734 virtual OGRErr exportToWkt( char ** ) const;
00735
00736
00737 virtual OGRErr addGeometryDirectly( OGRGeometry * );
00738 };
00739
00740
00741
00742
00743
00744
00749 class CPL_DLL OGRGeometryFactory
00750 {
00751 public:
00752 static OGRErr createFromWkb( unsigned char *, OGRSpatialReference *,
00753 OGRGeometry **, int = -1 );
00754 static OGRErr createFromWkt( char **, OGRSpatialReference *,
00755 OGRGeometry ** );
00756 static OGRGeometry *createFromGML( const char * );
00757 static OGRGeometry *createFromGEOS( const geos::Geometry * );
00758
00759 static void destroyGeometry( OGRGeometry * );
00760 static OGRGeometry *createGeometry( OGRwkbGeometryType );
00761
00762 static OGRGeometry * forceToPolygon( OGRGeometry * );
00763 static OGRGeometry * forceToMultiPolygon( OGRGeometry * );
00764 static OGRGeometry * forceToMultiPoint( OGRGeometry * );
00765 static OGRGeometry * forceToMultiLineString( OGRGeometry * );
00766
00767 static geos::GeometryFactory *getGEOSGeometryFactory();
00768
00769 static int haveGEOS();
00770
00771 };
00772
00773 #endif