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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
{
// Distance function from an Interval of dimension 0
const Interval singleton;
const Point dimZeroPoint(0);
const Point zero = {0.0};
const DistanceToDomainFunction singletonDistance(singleton);
assert_almost_equal(singletonDistance(dimZeroPoint), zero);
// Distance function from an Interval
const Point lower = {1.2, 0.7};
const Point upper = {2.0, 1.0};
Sample zero_dotone(2, 1);
zero_dotone(0, 0) = 0.0;
zero_dotone(1, 0) = 0.1;
const Interval box(lower, upper);
const DistanceToDomainFunction distance(box);
const Point point1 = {1.5, 0.8};
const Point distance_from_point1 = distance(point1);
assert_almost_equal(distance_from_point1, zero);
const Point point2 = {1.1, 0.8};
const Point distance_from_point2 = distance(point2);
assert_almost_equal(distance_from_point2, {0.1}, 1e-12);
Sample sample(2, 2);
sample[0] = point1;
sample[1] = point2;
assert_almost_equal(box.computeDistance(sample), zero_dotone, 1e-12, 0.0);
const Sample distance_from_sample = distance(sample);
assert_almost_equal(distance_from_sample, zero_dotone, 1e-12);
// distance function from a DomainUnion of Intervals
const Interval interval1(-0.5, 0.0); // [-0.5, 0]
const Interval interval2(0.7, 1.3); // [0.7, 1.3]
Interval interval3(0.9, 1.0);
Interval::BoolCollection finite;
finite.add(false);
interval3.setFiniteUpperBound(finite); // [0.9, +infinity)
const DomainUnion small_union(DomainIntersection::DomainCollection({interval1, interval2})); // [-0.5, 0] U [0.7, 1.3]
const DomainUnion big_union(DomainIntersection::DomainCollection({small_union, interval3})); // [-0.5, 0] U [0.7, +infinity)
Sample sample_dim1(2, 1);
sample_dim1(0, 0) = 0.1;
sample_dim1(1, 0) = 1.4;
Sample dotone_dotone(2, 1);
dotone_dotone(0, 0) = 0.1;
dotone_dotone(1, 0) = 0.1;
assert_almost_equal(small_union.computeDistance(sample_dim1), dotone_dotone, 1e-12, 0.0);
Sample dotone_zero(2, 1);
dotone_zero(0, 0) = 0.1;
dotone_zero(1, 0) = 0.0;
assert_almost_equal(big_union.computeDistance(sample_dim1), dotone_zero, 1e-12, 0.0);
const DistanceToDomainFunction distance_to_small_union(small_union);
assert_almost_equal(distance_to_small_union(sample_dim1), dotone_dotone, 1e-12, 0.0);
const DistanceToDomainFunction distance_to_big_union(big_union);
assert_almost_equal(distance_to_big_union(sample_dim1), dotone_zero, 1e-12, 0.0);
}
catch (TestFailed & ex)
{
std::cerr << ex << std::endl;
return ExitCode::Error;
}
return ExitCode::Success;
}
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