% for parfor
function [coorx, coory] = prepareCoord(nodesOffsetx, nodesOffsety, sub_nelx, sub_nely, coorx_full, coory_full)
    coorx = cell(sub_nely, sub_nelx);
    coory = cell(sub_nely, sub_nelx);

    for i = 1:sub_nelx
        for j = 1:sub_nely
            coorx{j,i} = coorx_full(squeeze(nodesOffsety(j,i,:)), squeeze(nodesOffsetx(j,i,:)));
            coory{j,i} = coory_full(squeeze(nodesOffsety(j,i,:)), squeeze(nodesOffsetx(j,i,:)));
        end
    end
end