GDAL
ogrwarpedlayer.h
1 /******************************************************************************
2  * $Id: ogrwarpedlayer.h 36501 2016-11-25 14:09:24Z rouault $
3  *
4  * Project: OpenGIS Simple Features Reference Implementation
5  * Purpose: Defines OGRWarpedLayer class
6  * Author: Even Rouault, even dot rouault at mines dash paris dot org
7  *
8  ******************************************************************************
9  * Copyright (c) 2012-2014, Even Rouault <even dot rouault at mines-paris dot org>
10  *
11  * Permission is hereby granted, free of charge, to any person obtaining a
12  * copy of this software and associated documentation files (the "Software"),
13  * to deal in the Software without restriction, including without limitation
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15  * and/or sell copies of the Software, and to permit persons to whom the
16  * Software is furnished to do so, subject to the following conditions:
17  *
18  * The above copyright notice and this permission notice shall be included
19  * in all copies or substantial portions of the Software.
20  *
21  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
22  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
23  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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25  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
26  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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28  ****************************************************************************/
29 
30 #ifndef OGRWARPEDLAYER_H_INCLUDED
31 #define OGRWARPEDLAYER_H_INCLUDED
32 
33 #ifndef DOXYGEN_SKIP
34 
35 #include "ogrlayerdecorator.h"
36 
37 /************************************************************************/
38 /* OGRWarpedLayer */
39 /************************************************************************/
40 
41 class OGRWarpedLayer : public OGRLayerDecorator
42 {
43  protected:
44  OGRFeatureDefn *m_poFeatureDefn;
45  int m_iGeomField;
46 
48  OGRCoordinateTransformation *m_poReversedCT; /* may be NULL */
49  OGRSpatialReference *m_poSRS;
50 
51  OGREnvelope sStaticEnvelope;
52 
53  static int ReprojectEnvelope( OGREnvelope* psEnvelope,
55 
56  OGRFeature * SrcFeatureToWarpedFeature(OGRFeature* poFeature);
57  OGRFeature * WarpedFeatureToSrcFeature(OGRFeature* poFeature);
58 
59  public:
60 
61  OGRWarpedLayer(OGRLayer* poDecoratedLayer,
62  int iGeomField,
63  int bTakeOwnership,
64  OGRCoordinateTransformation* poCT, /* must NOT be NULL, ownership acquired by OGRWarpedLayer */
65  OGRCoordinateTransformation* poReversedCT /* may be NULL, ownership acquired by OGRWarpedLayer */);
66  virtual ~OGRWarpedLayer();
67 
68  void SetExtent(double dfXMin, double dfYMin, double dfXMax, double dfYMax);
69 
70  virtual void SetSpatialFilter( OGRGeometry * ) override;
71  virtual void SetSpatialFilterRect( double dfMinX, double dfMinY,
72  double dfMaxX, double dfMaxY ) override;
73  virtual void SetSpatialFilter( int iGeomField, OGRGeometry * ) override;
74  virtual void SetSpatialFilterRect( int iGeomField, double dfMinX, double dfMinY,
75  double dfMaxX, double dfMaxY ) override;
76 
77  virtual OGRFeature *GetNextFeature() override;
78  virtual OGRFeature *GetFeature( GIntBig nFID ) override;
79  virtual OGRErr ISetFeature( OGRFeature *poFeature ) override;
80  virtual OGRErr ICreateFeature( OGRFeature *poFeature ) override;
81 
82  virtual OGRFeatureDefn *GetLayerDefn() override;
83 
84  virtual OGRSpatialReference *GetSpatialRef() override;
85 
86  virtual GIntBig GetFeatureCount( int bForce = TRUE ) override;
87  virtual OGRErr GetExtent(int iGeomField, OGREnvelope *psExtent, int bForce = TRUE) override;
88  virtual OGRErr GetExtent(OGREnvelope *psExtent, int bForce = TRUE) override;
89 
90  virtual int TestCapability( const char * ) override;
91 };
92 
93 #endif /* #ifndef DOXYGEN_SKIP */
94 
95 #endif // OGRWARPEDLAYER_H_INCLUDED
Definition of a feature class or feature layer.
Definition: ogr_feature.h:207
Abstract base class for all geometry classes.
Definition: ogr_geometry.h:118
This class represents an OpenGIS Spatial Reference System, and contains methods for converting betwee...
Definition: ogr_spatialref.h:134
This class represents a layer of simple features, with access methods.
Definition: ogrsf_frmts.h:68
Interface for transforming between coordinate systems.
Definition: ogr_spatialref.h:610
A simple feature, including geometry and attributes.
Definition: ogr_feature.h:280
long long GIntBig
Large signed integer type (generally 64-bit integer type).
Definition: cpl_port.h:230
int OGRErr
Simple container for a bounding region.
Definition: ogr_core.h:287

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