VTK  9.0.1
vtkGDALVectorReader.h
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1 /*=========================================================================
2 
3  Program: Visualization Toolkit
4  Module: vtkGDALVectorReader.h
5 
6  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
7  All rights reserved.
8  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
9 
10  This software is distributed WITHOUT ANY WARRANTY; without even
11  the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
12  PURPOSE. See the above copyright notice for more information.
13 
14 =========================================================================*/
30 #ifndef vtkGDALVectorReader_h
31 #define vtkGDALVectorReader_h
32 
33 #include "vtkIOGDALModule.h" // For export macro
35 
36 #include <map> // STL required.
37 #include <string> // for ivars
38 
39 class VTKIOGDAL_EXPORT vtkGDALVectorReader : public vtkMultiBlockDataSetAlgorithm
40 {
41 public:
43  void PrintSelf(ostream& os, vtkIndent indent) override;
45 
46  vtkSetStringMacro(FileName);
47  vtkGetStringMacro(FileName);
48 
53 
57  int GetLayerType(int layerIndex = 0);
58 
62  int GetFeatureCount(int layerIndex = 0);
63 
68 
73 
75 
80  vtkSetMacro(ActiveLayer, int);
81  vtkGetMacro(ActiveLayer, int);
83 
85 
91  vtkSetMacro(AppendFeatures, int);
92  vtkGetMacro(AppendFeatures, int);
93  vtkBooleanMacro(AppendFeatures, int);
95 
99  std::map<int, std::string> GetLayersProjection();
100 
104  const char* GetLayerProjection(int layerIndex);
105 
112  const char* GetLayerProjectionAsProj4(int layerIndex);
113 
115 
125  vtkSetMacro(AddFeatureIds, int);
126  vtkGetMacro(AddFeatureIds, int);
127  vtkBooleanMacro(AddFeatureIds, int);
129 
130 protected:
133 
136 
138 
140  char* FileName;
141 
145 
146  class Internal;
147 
149  vtkGDALVectorReader::Internal* Implementation;
150 
152  static int OGRRegistered;
153 
155  std::map<int, std::string> LayersProjection;
156 
157 private:
158  vtkGDALVectorReader(const vtkGDALVectorReader&) = delete;
159  void operator=(const vtkGDALVectorReader&) = delete;
160 };
161 
162 #endif // vtkGDALVectorReader_h
Read vector file formats using GDAL.
static int OGRRegistered
Global variable indicating whether the OGR library has been registered yet or not.
const char * GetLayerProjection(int layerIndex)
Return projection string belonging to a layer in WKT format.
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
std::map< int, std::string > GetLayersProjection()
Return projection string belonging to each layer in WKT format.
int GetActiveLayerType()
Return the active layer type (eg point, line, polygon).
int RequestInformation(vtkInformation *, vtkInformationVector **, vtkInformationVector *) override
This is called by the superclass.
char * FileName
The name of the file that will be opened on the next call to RequestData()
static vtkGDALVectorReader * New()
std::map< int, std::string > LayersProjection
Mapping of layer to projection.
int GetFeatureCount(int layerIndex=0)
Given a layer index return number of features (shapes).
vtkGDALVectorReader::Internal * Implementation
Private per-file metadata.
int GetLayerType(int layerIndex=0)
Given a index return layer type (eg point, line, polygon).
const char * GetLayerProjectionAsProj4(int layerIndex)
Return projection string belonging to a layer in PROJ.4 format.
int GetActiveLayerFeatureCount()
Return the number of features in the active layer (shapes).
~vtkGDALVectorReader() override
int GetNumberOfLayers()
Return number of layers.
int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *) override
This is called by the superclass.
a simple class to control print indentation
Definition: vtkIndent.h:34
Store zero or more vtkInformation instances.
Store vtkAlgorithm input/output information.
Superclass for algorithms that produce only vtkMultiBlockDataSet as output.