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// -*- C++ -*-
/**
* @brief The test file of class Function for indicator
*
* Copyright 2005-2025 Airbus-EDF-IMACS-ONERA-Phimeca
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "openturns/OT.hxx"
#include "openturns/OTtestcode.hxx"
using namespace OT;
using namespace OT::Test;
int main(int, char *[])
{
TESTPREAMBLE;
OStream fullprint(std::cout);
try
{
// Indicator function of an Interval of dimension 0
const Interval singleton;
const Point dimZeroPoint(0);
const Point one = {1.0};
const IndicatorFunction singletonIndicator(singleton);
assert_almost_equal(singletonIndicator(dimZeroPoint), one);
// Indicator function of an Interval
const Point lower = {1.2, 0.7};
const Point upper = {2.0, 1.0};
const Point zero = {0.0};
Sample one_zero(2, 1);
one_zero(0, 0) = 1.0;
one_zero(1, 0) = 0.0;
const Interval box(lower, upper);
const IndicatorFunction indicator(box);
const Point point1 = {1.5, 0.8};
const Point indicator_at_point1 = indicator(point1);
assert_almost_equal(indicator_at_point1, one);
const Point point2 = {1.1, 0.8};
const Point indicator_at_point2 = indicator(point2);
assert_almost_equal(indicator_at_point2, zero);
Sample sample(2, 2);
sample[0] = point1;
sample[1] = point2;
const Sample indicator_at_sample = indicator(sample);
assert_almost_equal(indicator_at_sample, one_zero);
}
catch (TestFailed & ex)
{
std::cerr << ex << std::endl;
return ExitCode::Error;
}
return ExitCode::Success;
}
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