mirror of
https://github.com/aportelli/LatAnalyze.git
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51 lines
1.7 KiB
C++
51 lines
1.7 KiB
C++
/*
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* TabFunction.cpp, part of LatAnalyze 3
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*
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* Copyright (C) 2013 - 2015 Antonin Portelli, Matt Spraggs
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*
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* LatAnalyze 3 is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* LatAnalyze 3 is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with LatAnalyze 3. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <LatAnalyze/TabFunction.hpp>
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int main(void)
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{
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Latan::DVec xs(3);
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xs << -1.0, 0.0, 1.0;
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Latan::DVec ys(3);
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ys << 1.0, 0.0, 1.0;
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auto tab = Latan::TabFunction(xs, ys, Latan::InterpType::QUADRATIC);
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std::cout << "Interpolating naive y = x^2 data using quadratic ";
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std::cout << "interpolation..." << std::endl;
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for (double x = -1.0; x < 1.0; x += 0.1) {
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double y = tab(&x);
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std::cout << "y @ " << x << " = " << y;
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std::cout << " ( " << x * x << " expected)" << std::endl;
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}
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std::cout << std::endl;
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tab = Latan::TabFunction(xs, ys, Latan::InterpType::NEAREST);
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std::cout << "Interpolating naive y = x^2 data using nearest ";
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std::cout << "interpolation..." << std::endl;
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for (double x = -1.0; x < 1.0; x += 0.1) {
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double y = tab(&x);
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std::cout << "y @ " << x << " = " << y;
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double expected = (x > 0.5) ? 1.0 : ((x <= -0.5) ? 1.0 : 0.0);
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std::cout << " ( " << expected << " expected)" << std::endl;
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}
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}
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