Interpolator3dGridTo3d.cpp

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/*
 *  Copyright (c) 2012, Chris Rogers
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#include "Fields/Interpolation/Interpolator3dGridTo3d.h"
#include "Utilities/LogicalError.h"

namespace interpolation {

Interpolator3dGridTo3d::Interpolator3dGridTo3d
                                           (const Interpolator3dGridTo3d& rhs) {
    coordinates_m = new ThreeDGrid(*rhs.coordinates_m);
    for (int i = 0; i < 3; i++)
        interpolator_m[i] = rhs.interpolator_m[i]->clone();
}

void Interpolator3dGridTo3d::function
                                (const double Point[3], double Value[3]) const {
    if (Point[0] > coordinates_m->maxX() || Point[0] < coordinates_m->minX() ||
        Point[1] > coordinates_m->maxY() || Point[1] < coordinates_m->minY() ||
        Point[2] > coordinates_m->maxZ() || Point[2] < coordinates_m->minZ() ) {
        Value[0] = 0;
        Value[1] = 0;
        Value[2] = 0;
        return;
    }

    interpolator_m[0]->function(Point, &Value[0]);
    interpolator_m[1]->function(Point, &Value[1]);
    interpolator_m[2]->function(Point, &Value[2]);
}

void Interpolator3dGridTo3d::setAll(ThreeDGrid* grid,
                                 double *** Bx, double *** By, double *** Bz,
                                 interpolationAlgorithm algo) {
    if (coordinates_m != NULL)
      coordinates_m->remove(this);
    grid->add(this);
    coordinates_m = grid;

    for (int i = 0; i < 3; i++)
        if (interpolator_m[i] != NULL)
        delete interpolator_m[i];

    switch (algo) {
        case TRILINEAR:
            interpolator_m[0] = new TriLinearInterpolator(grid, Bx);
            interpolator_m[1] = new TriLinearInterpolator(grid, By);
            interpolator_m[2] = new TriLinearInterpolator(grid, Bz);
            break;
        default:
            throw(LogicalError(
                    "Interpolator3dGridTo3d::setAll",
                    "Did not recognise interpolation algorithm"
                   )
      );
    }
}
}