29 lines
894 B
C++
29 lines
894 B
C++
#ifndef INTERPOLATE_H
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#define INTERPOLATE_H
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#include <vector>
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#include "UVGrid.h"
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/**
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* Bilinearly interpolate the point (time, lat, lon) to produce the interpolated velocity.
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* Since it is in 3D, this means that it interpolates against 8 points (excluding edges).
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* As described in https://numerical.recipes/book.html Chapter 3.6
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* @param uvGrid velocity grid
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* @param time time of point
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* @param lat latitude of point
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* @param lon longitude of point
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* @return interpolated velocity
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*/
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Vel bilinearinterpolate(const UVGrid &uvGrid, int time, double lat, double lon);
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/**
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* Helper function for bilnearly interpolating a vector of points
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* @param uvGrid velocity grid
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* @param points vector of points
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* @return interpolated velocities
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*/
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std::vector<Vel> bilinearinterpolation(const UVGrid &uvGrid, std::vector<std::tuple<int, double, double>> points);
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#endif //INTERPOLATE_H
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