GDAL

ogrwarpedlayer.h
1/******************************************************************************
2 * $Id$
3 *
4 * Project: OpenGIS Simple Features Reference Implementation
5 * Purpose: Defines OGRWarpedLayer class
6 * Author: Even Rouault, even dot rouault at spatialys.com
7 *
8 ******************************************************************************
9 * Copyright (c) 2012-2014, Even Rouault <even dot rouault at spatialys.com>
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
14 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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
24 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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
27 * DEALINGS IN THE SOFTWARE.
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
41class OGRWarpedLayer : public OGRLayerDecorator
42{
43 CPL_DISALLOW_COPY_ASSIGN(OGRWarpedLayer)
44
45 protected:
46 OGRFeatureDefn *m_poFeatureDefn;
47 int m_iGeomField;
48
49 OGRCoordinateTransformation *m_poCT;
50 OGRCoordinateTransformation *m_poReversedCT; /* may be NULL */
51 OGRSpatialReference *m_poSRS;
52
53 OGREnvelope sStaticEnvelope{};
54
55 static int ReprojectEnvelope(OGREnvelope *psEnvelope,
56 OGRCoordinateTransformation *poCT);
57
58 OGRFeature *SrcFeatureToWarpedFeature(OGRFeature *poFeature);
59 OGRFeature *WarpedFeatureToSrcFeature(OGRFeature *poFeature);
60
61 public:
62 OGRWarpedLayer(
63 OGRLayer *poDecoratedLayer, int iGeomField, int bTakeOwnership,
64 OGRCoordinateTransformation
65 *poCT, /* must NOT be NULL, ownership acquired by OGRWarpedLayer */
66 OGRCoordinateTransformation *
67 poReversedCT /* may be NULL, ownership acquired by OGRWarpedLayer */);
68 virtual ~OGRWarpedLayer();
69
70 void SetExtent(double dfXMin, double dfYMin, double dfXMax, double dfYMax);
71
72 virtual void SetSpatialFilter(OGRGeometry *) override;
73 virtual void SetSpatialFilterRect(double dfMinX, double dfMinY,
74 double dfMaxX, double dfMaxY) override;
75 virtual void SetSpatialFilter(int iGeomField, OGRGeometry *) override;
76 virtual void SetSpatialFilterRect(int iGeomField, double dfMinX,
77 double dfMinY, double dfMaxX,
78 double dfMaxY) override;
79
80 virtual OGRFeature *GetNextFeature() override;
81 virtual OGRFeature *GetFeature(GIntBig nFID) override;
82 virtual OGRErr ISetFeature(OGRFeature *poFeature) override;
83 virtual OGRErr ICreateFeature(OGRFeature *poFeature) override;
84 virtual OGRErr IUpsertFeature(OGRFeature *poFeature) override;
85 OGRErr IUpdateFeature(OGRFeature *poFeature, int nUpdatedFieldsCount,
86 const int *panUpdatedFieldsIdx,
87 int nUpdatedGeomFieldsCount,
88 const int *panUpdatedGeomFieldsIdx,
89 bool bUpdateStyleString) override;
90
91 virtual OGRFeatureDefn *GetLayerDefn() override;
92
93 virtual OGRSpatialReference *GetSpatialRef() override;
94
95 virtual GIntBig GetFeatureCount(int bForce = TRUE) override;
96 virtual OGRErr GetExtent(int iGeomField, OGREnvelope *psExtent,
97 int bForce = TRUE) override;
98 virtual OGRErr GetExtent(OGREnvelope *psExtent, int bForce = TRUE) override;
99
100 virtual int TestCapability(const char *) override;
101};
102
103#endif /* #ifndef DOXYGEN_SKIP */
104
105#endif // OGRWARPEDLAYER_H_INCLUDED
OGRCoordinateTransformation
Interface for transforming between coordinate systems.
Definition: ogr_spatialref.h:787
OGREnvelope
Simple container for a bounding region (rectangle)
Definition: ogr_core.h:61
OGRFeatureDefn
Definition of a feature class or feature layer.
Definition: ogr_feature.h:517
OGRFeature
A simple feature, including geometry and attributes.
Definition: ogr_feature.h:893
OGRGeometry
Abstract base class for all geometry classes.
Definition: ogr_geometry.h:377
OGRLayer
This class represents a layer of simple features, with access methods.
Definition: ogrsf_frmts.h:74
OGRSpatialReference
This class represents an OpenGIS Spatial Reference System, and contains methods for converting betwee...
Definition: ogr_spatialref.h:169
CPL_DISALLOW_COPY_ASSIGN
#define CPL_DISALLOW_COPY_ASSIGN(ClassName)
Helper to remove the copy and assignment constructors so that the compiler will not generate the defa...
Definition: cpl_port.h:1042
GIntBig
long long GIntBig
Large signed integer type (generally 64-bit integer type).
Definition: cpl_port.h:215
OGRErr
int OGRErr
Type for a OGR error.
Definition: ogr_core.h:387