Geographic interpolation from curved grids would occasionally pick the wrong grid cells to interpolate from in specific edge cases.
This pull request selects the correct grid cells, and changes the interpolation from a pure 4-point bilinear to a 3 point triangular mesh interpolation.
Fixes interpolation issue #35
Geographic interpolation from curved grids would occasionally pick the wrong grid cells to interpolate from in specific edge cases.
This pull request selects the correct grid cells, and changes the interpolation from a pure 4-point bilinear to a 3 point triangular mesh interpolation.