3D line plot between coordinates

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proczell
proczell 2018-1-23
回答： proczell 2018-1-23
I am trying to make a function that draws lines between given coordinates in a MAT file. As an example, the MAT file can look as following. Where the second and third column are the x coordinates for the start and end of the point, the 4th and 5th for y and 6th and 7th for z.
The function nearly works as intended, and draws the three lines i specified. However, it adds one lines from (0,-6,24) to (18,-6,0). Anyone have an idea of how to make the function only draw the number of lines specified from the MAT file?
[1] [0] [ 0] [-6] [-6] [ 0] [ 24]
[1] [0] [ 18] [-6] [-6] [ 0] [ 0]
[1] [0] [14.5000] [-6] [-6] [24] [2.5000]
n = size(A.save_lines);
for i = 1:n(1)
X_start(i,1) = A.save_lines{i,2};
X_end(i,1) = A.save_lines{i,3};
Y_start(i,1) = A.save_lines{i,4};
Y_end(i,1) = A.save_lines{i,5};
Z_start(i,1) = A.save_lines{i,6};
Z_end(i,1) = A.save_lines{i,7};
end
X = [X_start , X_end]
Y = [Y_start , Y_end]
Z = [Z_start , Z_end]
X = reshape(X.',1,[])
Y = reshape(Y.',1,[])
Z = reshape(Z.',1,[])
line(X,Y,Z)

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proczell
proczell 2018-1-23
Solved by adding the following code
for j = 1:length(X)
plot3(X(j,1:2),Y(j,1:2),Z(j,1:2),'b')
end
instead of the reshape process. Posted it here in case anyone needed it for any reason.

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