GDAL: ogrwarpedlayer.h Source File

00001 /******************************************************************************
00002  * $Id: ogrwarpedlayer.h 36501 2016-11-25 14:09:24Z rouault $
00003  *
00004  * Project:  OpenGIS Simple Features Reference Implementation
00005  * Purpose:  Defines OGRWarpedLayer class
00006  * Author:   Even Rouault, even dot rouault at mines dash paris dot org
00007  *
00008  ******************************************************************************
00009  * Copyright (c) 2012-2014, Even Rouault <even dot rouault at mines-paris dot org>
00010  *
00011  * Permission is hereby granted, free of charge, to any person obtaining a
00012  * copy of this software and associated documentation files (the "Software"),
00013  * to deal in the Software without restriction, including without limitation
00014  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
00015  * and/or sell copies of the Software, and to permit persons to whom the
00016  * Software is furnished to do so, subject to the following conditions:
00017  *
00018  * The above copyright notice and this permission notice shall be included
00019  * in all copies or substantial portions of the Software.
00020  *
00021  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
00022  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
00023  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
00024  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
00025  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
00026  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
00027  * DEALINGS IN THE SOFTWARE.
00028  ****************************************************************************/
00029 
00030 #ifndef OGRWARPEDLAYER_H_INCLUDED
00031 #define OGRWARPEDLAYER_H_INCLUDED
00032 
00033 #ifndef DOXYGEN_SKIP
00034 
00035 #include "ogrlayerdecorator.h"
00036 
00037 /************************************************************************/
00038 /*                           OGRWarpedLayer                             */
00039 /************************************************************************/
00040 
00041 class OGRWarpedLayer : public OGRLayerDecorator
00042 {
00043   protected:
00044       OGRFeatureDefn              *m_poFeatureDefn;
00045       int                          m_iGeomField;
00046 
00047       OGRCoordinateTransformation *m_poCT;
00048       OGRCoordinateTransformation *m_poReversedCT; /* may be NULL */
00049       OGRSpatialReference         *m_poSRS;
00050 
00051       OGREnvelope                  sStaticEnvelope;
00052 
00053       static int ReprojectEnvelope( OGREnvelope* psEnvelope,
00054                                     OGRCoordinateTransformation* poCT );
00055 
00056       OGRFeature *                 SrcFeatureToWarpedFeature(OGRFeature* poFeature);
00057       OGRFeature *                 WarpedFeatureToSrcFeature(OGRFeature* poFeature);
00058 
00059   public:
00060 
00061                        OGRWarpedLayer(OGRLayer* poDecoratedLayer,
00062                                       int iGeomField,
00063                                       int bTakeOwnership,
00064                                       OGRCoordinateTransformation* poCT,  /* must NOT be NULL, ownership acquired by OGRWarpedLayer */
00065                                       OGRCoordinateTransformation* poReversedCT /* may be NULL, ownership acquired by OGRWarpedLayer */);
00066     virtual           ~OGRWarpedLayer();
00067 
00068     void                SetExtent(double dfXMin, double dfYMin, double dfXMax, double dfYMax);
00069 
00070     virtual void        SetSpatialFilter( OGRGeometry * ) override;
00071     virtual void        SetSpatialFilterRect( double dfMinX, double dfMinY,
00072                                               double dfMaxX, double dfMaxY ) override;
00073     virtual void        SetSpatialFilter( int iGeomField, OGRGeometry * ) override;
00074     virtual void        SetSpatialFilterRect( int iGeomField, double dfMinX, double dfMinY,
00075                                               double dfMaxX, double dfMaxY ) override;
00076 
00077     virtual OGRFeature *GetNextFeature() override;
00078     virtual OGRFeature *GetFeature( GIntBig nFID ) override;
00079     virtual OGRErr      ISetFeature( OGRFeature *poFeature ) override;
00080     virtual OGRErr      ICreateFeature( OGRFeature *poFeature ) override;
00081 
00082     virtual OGRFeatureDefn *GetLayerDefn() override;
00083 
00084     virtual OGRSpatialReference *GetSpatialRef() override;
00085 
00086     virtual GIntBig     GetFeatureCount( int bForce = TRUE ) override;
00087     virtual OGRErr      GetExtent(int iGeomField, OGREnvelope *psExtent, int bForce = TRUE) override;
00088     virtual OGRErr      GetExtent(OGREnvelope *psExtent, int bForce = TRUE) override;
00089 
00090     virtual int         TestCapability( const char * ) override;
00091 };
00092 
00093 #endif /* #ifndef DOXYGEN_SKIP */
00094 
00095 #endif //  OGRWARPEDLAYER_H_INCLUDED