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/*
* Copyright (C) 2005-2017 Centre National d'Etudes Spatiales (CNES)
*
* This file is part of Orfeo Toolbox
*
* https://www.orfeo-toolbox.org/
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "otbOGRDataToClassStatisticsFilter.h"
#include "otbVectorImage.h"
#include "otbImage.h"
#include <fstream>
int otbOGRDataToClassStatisticsFilterNew(int itkNotUsed(argc), char* itkNotUsed(argv) [])
{
typedef otb::VectorImage<float> InputImageType;
typedef otb::Image<unsigned char> MaskImageType;
typedef otb::OGRDataToClassStatisticsFilter<InputImageType,MaskImageType> FilterType;
FilterType::Pointer filter = FilterType::New();
std::cout << filter << std::endl;
return EXIT_SUCCESS;
}
int otbOGRDataToClassStatisticsFilter(int argc, char* argv[])
{
typedef otb::VectorImage<float> InputImageType;
typedef otb::Image<unsigned char> MaskImageType;
typedef otb::OGRDataToClassStatisticsFilter<InputImageType,MaskImageType> FilterType;
if (argc < 3)
{
std::cout << "Usage : "<<argv[0]<< " input_vector output_stats" << std::endl;
}
std::string vectorPath(argv[1]);
std::string outputPath(argv[2]);
otb::ogr::DataSource::Pointer vectors = otb::ogr::DataSource::New(vectorPath);
InputImageType::RegionType region;
region.SetSize(0,99);
region.SetSize(1,50);
InputImageType::PointType origin;
origin.Fill(0.5);
InputImageType::SpacingType spacing;
spacing[0] = 1.0;
spacing[1] = -1.0;
InputImageType::PixelType pixel(3);
pixel.Fill(1);
InputImageType::Pointer inputImage = InputImageType::New();
inputImage->SetNumberOfComponentsPerPixel(3);
inputImage->SetLargestPossibleRegion(region);
inputImage->SetOrigin(origin);
inputImage->SetSignedSpacing(spacing);
// Don't allocate the input image, the filter should not need it
//inputImage->Allocate();
//inputImage->FillBuffer(pixel);
MaskImageType::Pointer mask = MaskImageType::New();
mask->SetRegions(region);
mask->SetOrigin(origin);
mask->SetSignedSpacing(spacing);
mask->Allocate();
itk::ImageRegionIterator<MaskImageType> it(mask,region);
unsigned int count = 0;
for (it.GoToBegin(); !it.IsAtEnd() ; ++it, ++count)
{
it.Set(count % 2);
}
std::string fieldName("Label");
FilterType::Pointer filter = FilterType::New();
filter->SetInput(inputImage);
filter->SetMask(mask);
filter->SetOGRData(vectors);
filter->SetFieldName(fieldName);
filter->SetLayerIndex(0);
filter->Update();
FilterType::ClassCountMapType &classCount = filter->GetClassCountOutput()->Get();
FilterType::PolygonSizeMapType &polySize = filter->GetPolygonSizeOutput()->Get();
FilterType::ClassCountMapType::const_iterator itClass;
FilterType::PolygonSizeMapType::const_iterator itPoly;
std::ofstream ofs;
ofs.open(outputPath.c_str());
ofs << "# Layer 0 : polygons"<<std::endl;
ofs << "# Class sample counts"<<std::endl;
for (itClass = classCount.begin(); itClass != classCount.end() ; ++itClass)
{
ofs << "class "<< itClass->first << " = "<< itClass->second << std::endl;
}
ofs << "# Vector sizes"<<std::endl;
for (itPoly = polySize.begin() ; itPoly != polySize.end() ; ++itPoly)
{
ofs << "feature " << itPoly->first << " = "<< itPoly->second << std::endl;
}
filter->SetLayerIndex(1);
filter->Update();
ofs << "# Layer 1 : lines"<<std::endl;
ofs << "# Class sample counts"<<std::endl;
for (itClass = classCount.begin() ; itClass != classCount.end() ; ++itClass)
{
ofs << "class "<< itClass->first << " = "<< itClass->second << std::endl;
}
ofs << "# Vector sizes"<<std::endl;
for (itPoly = polySize.begin() ; itPoly != polySize.end() ; ++itPoly)
{
ofs << "feature " << itPoly->first << " = "<< itPoly->second << std::endl;
}
filter->SetLayerIndex(2);
filter->Update();
ofs << "# Layer 2 : points"<<std::endl;
ofs << "# Class sample counts"<<std::endl;
for (itClass = classCount.begin(); itClass != classCount.end() ; ++itClass)
{
ofs << "class "<< itClass->first << " = "<< itClass->second << std::endl;
}
ofs << "# Vector sizes"<<std::endl;
for (itPoly = polySize.begin() ; itPoly != polySize.end() ; ++itPoly)
{
ofs << "feature " << itPoly->first << " = "<< itPoly->second << std::endl;
}
ofs.close();
return EXIT_SUCCESS;
}
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