QGIS API Documentation 3.29.0-Master (ade4f0cf0f)
qgsgdalutils.h
Go to the documentation of this file.
1/***************************************************************************
2 qgsgdalutils.h
3 --------------
4 begin : September 2018
5 copyright : (C) 2018 Even Rouault
6 email : even.rouault at spatialys.com
7 ***************************************************************************
8 * *
9 * This program is free software; you can redistribute it and/or modify *
10 * it under the terms of the GNU General Public License as published by *
11 * the Free Software Foundation; either version 2 of the License, or *
12 * (at your option) any later version. *
13 * *
14 ***************************************************************************/
15
16#ifndef QGSGDALUTILS_H
17#define QGSGDALUTILS_H
18
19#define SIP_NO_FILE
20
21#include "qgis_core.h"
22#include <gdal.h>
23
24#include "qgsogrutils.h"
25
34class CORE_EXPORT QgsGdalUtils
35{
36 public:
37
43 static bool supportsRasterCreate( GDALDriverH driver );
44
49 static gdal::dataset_unique_ptr createSingleBandMemoryDataset( GDALDataType dataType, const QgsRectangle &extent, int width, int height, const QgsCoordinateReferenceSystem &crs );
50
55 static gdal::dataset_unique_ptr createMultiBandMemoryDataset( GDALDataType dataType, int bands, const QgsRectangle &extent, int width, int height, const QgsCoordinateReferenceSystem &crs );
56
61 static gdal::dataset_unique_ptr createSingleBandTiffDataset( const QString &filename, GDALDataType dataType, const QgsRectangle &extent, int width, int height, const QgsCoordinateReferenceSystem &crs );
62
69 static bool resampleSingleBandRaster( GDALDatasetH hSrcDS, GDALDatasetH hDstDS, GDALResampleAlg resampleAlg, const char *pszCoordinateOperation );
70
75 static QImage resampleImage( const QImage &image, QSize outputSize, GDALRIOResampleAlg resampleAlg );
76
81 static QString helpCreationOptionsFormat( const QString &format );
82
87 static QString validateCreationOptionsFormat( const QStringList &createOptions, const QString &format );
88
93 static char **papszFromStringList( const QStringList &list );
94
102 static gdal::dataset_unique_ptr imageToMemoryDataset( const QImage &image );
103
111 static gdal::dataset_unique_ptr blockToSingleBandMemoryDataset( int pixelWidth, int pixelHeight, const QgsRectangle &extent, void *block, GDALDataType dataType );
112
121 static GDALDatasetH rpcAwareAutoCreateWarpedVrt(
122 GDALDatasetH hSrcDS,
123 const char *pszSrcWKT,
124 const char *pszDstWKT,
125 GDALResampleAlg eResampleAlg,
126 double dfMaxError,
127 const GDALWarpOptions *psOptionsIn );
128
137 static void *rpcAwareCreateTransformer( GDALDatasetH hSrcDS, GDALDatasetH hDstDS = nullptr, char **papszOptions = nullptr );
138
139#ifndef QT_NO_NETWORKPROXY
141 static void setupProxy();
142#endif
143
158 static bool pathIsCheapToOpen( const QString &path, int smallFileSizeLimit = 50000 );
159
166 static QStringList multiLayerFileExtensions();
167
174 static bool vrtMatchesLayerType( const QString &vrtPath, QgsMapLayerType type );
175
176 friend class TestQgsGdalUtils;
177};
178
179#endif // QGSGDALUTILS_H
This class represents a coordinate reference system (CRS).
Utilities for working with GDAL.
Definition: qgsgdalutils.h:35
A rectangle specified with double values.
Definition: qgsrectangle.h:42
QgsMapLayerType
Types of layers that can be added to a map.
Definition: qgis.h:47
std::unique_ptr< std::remove_pointer< GDALDatasetH >::type, GDALDatasetCloser > dataset_unique_ptr
Scoped GDAL dataset.
Definition: qgsogrutils.h:140
void * GDALDatasetH
const QgsCoordinateReferenceSystem & crs