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Merge pull request #5 from mspraggs/master

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Added nearest interpolation to the interpolation example
This commit is contained in:
Antonin Portelli 2015-11-23 14:13:37 +00:00
commit 73293efb5c
1 changed files with 14 additions and 1 deletions
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15
examples/exInterp.cpp
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@ -29,10 +29,23 @@ int main(int argc, char* argv[])
auto tab = Latan::TabFunction(xs, ys, Latan::InterpType::QUADRATIC); auto tab = Latan::TabFunction(xs, ys, Latan::InterpType::QUADRATIC);
std::cout << "Interpolating naive y = x^2 data..." << std::endl; std::cout << "Interpolating naive y = x^2 data using quadratic ";
std::cout << "interpolation..." << std::endl;
for (double x = -1.0; x < 1.0; x += 0.1) { for (double x = -1.0; x < 1.0; x += 0.1) {
double y = tab(&x); double y = tab(&x);
std::cout << "y @ " << x << " = " << y; std::cout << "y @ " << x << " = " << y;
std::cout << " ( " << x * x << " expected)" << std::endl; std::cout << " ( " << x * x << " expected)" << std::endl;
} }
std::cout << std::endl;
tab = Latan::TabFunction(xs, ys, Latan::InterpType::NEAREST);
std::cout << "Interpolating naive y = x^2 data using nearest ";
std::cout << "interpolation..." << std::endl;
for (double x = -1.0; x < 1.0; x += 0.1) {
double y = tab(&x);
std::cout << "y @ " << x << " = " << y;
double expected = (x > 0.5) ? 1.0 : ((x <= -0.5) ? 1.0 : 0.0);
std::cout << " ( " << expected << " expected)" << std::endl;
}
} }