1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
|
// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
/**
* @class vtkGDALRasterReader
* @brief Read raster file formats using GDAL.
*
* vtkGDALRasterReader is a source object that reads raster files and
* uses GDAL as the underlying library for the task. GDAL library is
* required for this reader. The output of the reader is a
* vtkUniformGrid (vtkImageData with blanking) with cell data.
* The reader currently supports only north up images. Flips along
* X or Y direction are also supported. Arbitrary affine geotransforms or
* GCPs are not supported. See GDAL Data Model for more information
* https://www.gdal.org/gdal_datamodel.html
*
*
*
* @sa
* vtkUniformGrid, vtkImageData
*/
#ifndef vtkGDALRasterReader_h
#define vtkGDALRasterReader_h
#include <vtkIOGDALModule.h> // For export macro
#include <vtkImageReader2.h>
// C++ includes
#include <string> // string is required
#include <vector> // vector is required
VTK_ABI_NAMESPACE_BEGIN
class VTKIOGDAL_EXPORT vtkGDALRasterReader : public vtkImageReader2
{
public:
static vtkGDALRasterReader* New();
vtkTypeMacro(vtkGDALRasterReader, vtkImageReader2);
void PrintSelf(ostream& os, vtkIndent indent) override;
vtkGDALRasterReader();
~vtkGDALRasterReader() override;
/**
* Is this file supported
*/
int CanReadFile(VTK_FILEPATH const char* fname) override;
/**
* Return proj4 spatial reference
*/
const char* GetProjectionString() const;
/**
* Returns WKT spatial reference.
*/
const char* GetProjectionWKT() const { return this->ProjectionWKT.c_str(); }
/**
* Return geo-referenced corner points (Upper left,
* lower left, lower right, upper right)
*/
const double* GetGeoCornerPoints();
/**
* Get/Set if bands are collated in one scalar array.
* Currently we collate RGB, RGBA, gray alpha and palette.
* The default is true.
*/
vtkSetMacro(CollateBands, bool);
vtkGetMacro(CollateBands, bool);
vtkBooleanMacro(CollateBands, bool);
///@{
/**
* Set desired width and height of the image
*/
vtkSetVector2Macro(TargetDimensions, int);
vtkGetVector2Macro(TargetDimensions, int);
///@}
///@{
/**
* Get raster width and height in number of pixels (cells)
*/
int* GetRasterDimensions();
///@}
/**
* Return metadata as reported by GDAL
*/
const std::vector<std::string>& GetMetaData();
/**
* Return the invalid value for a pixel (for blanking purposes) in
* a specified raster band. Note bandIndex is a 0 based index while
* GDAL bands are 1 based indexes. hasNoData indicates if there is a NoData
* value associated with this band.
*/
double GetInvalidValue(size_t bandIndex = 0, int* hasNoData = nullptr);
/**
* Return domain metadata
*/
std::vector<std::string> GetDomainMetaData(const std::string& domain);
///@{
/**
* Return driver name which was used to read the current data
*/
const std::string& GetDriverShortName();
const std::string& GetDriverLongName();
///@}
/**
* Return the number of cells that are not set to GDAL NODATA
*/
vtkIdType GetNumberOfCells();
///@{
/**
* The following methods allow selective reading of bands.
* By default, ALL bands are read.
*/
int GetNumberOfCellArrays();
const char* GetCellArrayName(int index);
int GetCellArrayStatus(const char* name);
void SetCellArrayStatus(const char* name, int status);
void DisableAllCellArrays();
void EnableAllCellArrays();
///@}
protected:
int RequestData(vtkInformation* request, vtkInformationVector** inputVector,
vtkInformationVector* outputVector) override;
int RequestInformation(vtkInformation* request, vtkInformationVector** inputVector,
vtkInformationVector* outputVector) override;
int FillOutputPortInformation(int port, vtkInformation* info) override;
int TargetDimensions[2];
std::string Projection;
std::string ProjectionWKT;
std::string DomainMetaData;
std::string DriverShortName;
std::string DriverLongName;
std::vector<std::string> Domains;
std::vector<std::string> MetaData;
bool CollateBands;
class vtkGDALRasterReaderInternal;
vtkGDALRasterReaderInternal* Impl;
private:
vtkGDALRasterReader(const vtkGDALRasterReader&) = delete;
void operator=(const vtkGDALRasterReader&) = delete;
};
VTK_ABI_NAMESPACE_END
#endif // vtkGDALRasterReader_h
|
