MATLAB Answers

Alternative function to scatteredInterpolant

11 ビュー (過去 30 日間)
Alejandro Fernández
Alejandro Fernández 2021 年 7 月 29 日
Hello. I was wondering if anyone would know any alternative function to scatteredInterpolant (if possible that can be implemented also in Python) so that it can be equivalent to the one I show below.
function data_out = test_scatteredInterpolant (data_input)
U = rand(20,20);
V = rand(20,20);
[X,Y] = meshgrid(1:20,1:20);
% Create matrix with specific format.
aux_array = [reshape(U,[],1) reshape(V,[],1) reshape(X,[],1) reshape(Y,[],1)];
% Apply scatteredInterpolant with vector arrays.
FX = scatteredInterpolant(aux_array(:,1),aux_array(:,2), aux_array(:,3));
FY = scatteredInterpolant(aux_array(:,1),aux_array(:,2), aux_array(:,4));
% Apply FX and FY to the desired input.
data_out(:,1) = FX(data_input(:,1),data_input(:,2));
data_out(:,2) = FY(data_input(:,1),data_input(:,2));
Basically, the function constructs an interpolant for the matrices U,V,X and another for U,V,Y and then applies them to the points given as input, as the example below:
data_out = test_scatteredInterpolant(rand(10,2));
Note. The actual function does not work with random values but for the sake of an example I think it is more visual.


KSSV 2021 年 7 月 29 日
Have a look on griddata.
  3 件のコメント
Alejandro Fernández
Alejandro Fernández 2021 年 8 月 4 日
You were rigth, thank you so much


その他の回答 (0 件)




Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by