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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 "otbPeriodicSampler.h"
#include "otbPatternSampler.h"
#include "otbRandomSampler.h"
#include "itkMersenneTwisterRandomVariateGenerator.h"
template <typename SamplerType>
std::string RunSampler(SamplerType *sampler, unsigned long total)
{
std::string output;
std::ostringstream oss;
sampler->Reset();
for (unsigned long i=0UL ; i < total ; ++i)
{
if (sampler->TakeSample())
{
oss << "X";
}
else
{
oss << "_";
}
}
output = oss.str();
std::cout << "Sampling result : "<< output << std::endl;
return output;
}
int otbPeriodicSamplerTest(int, char *[])
{
otb::PeriodicSampler::Pointer sampler = otb::PeriodicSampler::New();
otb::PeriodicSampler::ParameterType param;
param.Offset = 2;
param.MaxJitter = 0;
sampler->SetNumberOfElements(5,23);
sampler->SetParameters(param);
std::string test1 = RunSampler<otb::PeriodicSampler>(sampler,23);
if ( sampler->GetChosenElements() != sampler->GetNeededElements() ) {
std::cout << "1 - Wrong nb of needed elements :" << std::endl;
std::cout << " expected : " << sampler->GetNeededElements() << std::endl;
std::cout << " got : " << sampler->GetChosenElements() << std::endl;
return EXIT_FAILURE;
}
std::string baseline1("__X___X____X___X____X__");
if (test1 != baseline1)
{
std::cout << "1 - Wrong sampling sequence :" << std::endl;
std::cout << " expected : " << baseline1 << std::endl;
std::cout << " got : " << test1 << std::endl;
return EXIT_FAILURE;
}
param.Offset = 0;
param.MaxJitter = 10;
param.MaxBufferSize = 1000000UL;
sampler->SetRate(0.2,50);
sampler->SetParameters(param);
std::string test2 = RunSampler<otb::PeriodicSampler>(sampler,50);
if ( sampler->GetChosenElements() != sampler->GetNeededElements() ) {
std::cout << "2 - Wrong nb of needed elements :" << std::endl;
std::cout << " expected : " << sampler->GetNeededElements() << std::endl;
std::cout << " got : " << sampler->GetChosenElements() << std::endl;
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
int otbPatternSamplerTest(int, char *[])
{
otb::PatternSampler::Pointer sampler = otb::PatternSampler::New();
otb::PatternSampler::ParameterType param;
param.Seed = 121212;
param.MaxPatternSize = 100;
sampler->SetNumberOfElements(5,23);
sampler->SetParameters(param);
std::string test1 = RunSampler<otb::PatternSampler>(sampler,23);
if ( sampler->GetChosenElements() != sampler->GetNeededElements() ) {
std::cout << "1 - Wrong nb of needed elements :" << std::endl;
std::cout << " expected : " << sampler->GetNeededElements() << std::endl;
std::cout << " got : " << sampler->GetChosenElements() << std::endl;
return EXIT_FAILURE;
}
param.Seed = 0;
param.Pattern1.clear();
param.Pattern1.push_back(false);
param.Pattern1.push_back(true);
param.Pattern1.push_back(false);
param.Pattern1.push_back(false);
param.Pattern1.push_back(true);
param.Pattern1.push_back(true);
param.Pattern1.push_back(false);
param.Pattern2.clear();
// here, the pattern is imposed so the sampling rate will be ignored
sampler->SetRate(0.34,23);
sampler->SetParameters(param);
std::string test2 = RunSampler<otb::PatternSampler>(sampler,23);
std::string baseline2("_X__XX__X__XX__X__X____");
if (test2 != baseline2)
{
std::cout << "2 - Wrong sampling sequence :" << std::endl;
std::cout << " expected : " << baseline2 << std::endl;
std::cout << " got : " << test2 << std::endl;
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
int otbRandomSamplerTest(int, char *[])
{
itk::Statistics::MersenneTwisterRandomVariateGenerator::GetInstance()->SetSeed(121212);
otb::RandomSampler::Pointer sampler = otb::RandomSampler::New();
otb::RandomSampler::ParameterType param;
param.MaxBufferSize = 100000000;
sampler->SetNumberOfElements(5,23);
sampler->SetParameters(param);
std::string test1 = RunSampler<otb::RandomSampler>(sampler,23);
if ( sampler->GetChosenElements() != sampler->GetNeededElements() ) {
std::cout << "1 - Wrong nb of needed elements :" << std::endl;
std::cout << " expected : " << sampler->GetNeededElements() << std::endl;
std::cout << " got : " << sampler->GetChosenElements() << std::endl;
return EXIT_FAILURE;
}
param.MaxBufferSize = 5;
sampler->SetRate(0.1,23);
sampler->SetParameters(param);
std::string test2 = RunSampler<otb::RandomSampler>(sampler,23);
if ( sampler->GetChosenElements() != sampler->GetNeededElements() ) {
std::cout << "2 - Wrong nb of needed elements :" << std::endl;
std::cout << " expected : " << sampler->GetNeededElements() << std::endl;
std::cout << " got : " << sampler->GetChosenElements() << std::endl;
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
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