gridTesters.cc

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#include "Grid1D.h"
#include "Grid3D.h"
#include <cassert>

namespace {
  bool testGrid1D(Grid1D const& grid) {
    bool ok = true;

    Grid1D::Scalar f;
    int i = grid.index(7.2, f);
    ok &= grid.inRange(i);

    ok &= (8 == i);
    ok &= (0.6f == f);

    return ok;
  }
}  // namespace

#include <iostream>
#include <cstdlib>
#include <cstdio>

namespace {
  void print(Grid1D grid, Grid1D::Scalar a) {
    Grid1D::Scalar f;
    int i = grid.index(a, f);
    ::printf("%i %f %a\n", i, f, f);
    grid.normalize(i, f);
    ::printf("%i %f %a\n", i, f, f);
  }
}  // namespace

int grid1d_t() {
  bool ok = true;
  Grid1D grid(-10., 10., 11);

  print(grid, 7.2);
  print(grid, 10.);
  print(grid, -10.2);
  print(grid, 10.2);

  ok &= testGrid1D(grid);

  assert(ok ? 0 : 1);
  return ok ? 0 : 1;
}

namespace {

  Grid3D const* factory() {
    Grid1D ga(0., 10., 5);
    Grid1D gb(-10., 10., 11);
    Grid1D gc(-10., 10., 11);

    std::vector<Grid3D::BVector> data;
    data.reserve(ga.nodes() * gb.nodes() * gc.nodes());
    for (int i = 0; i < ga.nodes(); ++i)
      for (int j = 0; j < gb.nodes(); ++j)
        for (int k = 0; k < gc.nodes(); ++k) {
          data.push_back(Grid3D::BVector(10 * ga.node(i), 10 * gb.node(j), 10 * gc.node(k)));
        }

    return new Grid3D(ga, gb, gc, data);
  }

}  // namespace

#include "LinearGridInterpolator3D.h"
#include <iostream>

int grid3d_t() {
  Grid3D const* grid = factory();

  LinearGridInterpolator3D inter(*grid);

  std::cout << inter.interpolate(7.5, 7.2, -3.4) << std::endl;
  std::cout << inter.interpolate(-0.5, 10.2, -3.4) << std::endl;

  delete grid;
  return 0;
}