How to divide elements with 4 points in triangles?

2019 12 7
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更新时间：2019 12 7
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ele = [1 2 5 4; 2 3 6 5; 4 5 8 7; 5 6 9 8];
% ele is a matrix with 4 rows and 4 columns
% Now T shall divide each row in 2 triangles (row with three columns), where the first row gets the first three values of each element row and the second row gets the 2 last values of a element row and at least the first one.
% for example = T(1,:) = [1 2 5], T(2,:) = [5 4 1]

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Ralf Steinhahn
Ralf Steinhahn 2019-12-7

0 个投票

s = size(ele,1);
T = zeros(s,3);
for i = 1:4
for j = 1:3
T(2*i-1,j) = ele(i,j);
end
for j = 3:4
T(2*i,j-2) = ele(i,j);
end
T(2*i,3) = ele(i,1);
end

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