Alternative function to scatteredInterpolant

조회 수: 32(최근 30일)
Alejandro Fernández
Alejandro Fernández 2021년 7월 29일
댓글: Alejandro Fernández 2021년 8월 4일
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.

채택된 답변

KSSV 2021년 7월 29일
Have a look on griddata.
  댓글 수: 3
Alejandro Fernández
Alejandro Fernández 2021년 8월 4일
You were rigth, thank you so much

댓글을 달려면 로그인하십시오.

추가 답변(0개)




Community Treasure Hunt

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

Start Hunting!

Translated by