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Setting EdgeColor in 2015B+ for graph.m
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Matlab2010
am 11 Mär. 2016
Kommentiert: Steven Lord
am 11 Mär. 2016
A = ones(4) - diag([1 1 1 1]);
G = graph(A);
plot(G);
h=get(gca, 'Children');
%set(h, 'EdgeColor', 'red'); % I could do this but it sets all the edges red.
%set(h, 'EdgeColor', new_cols(i,1)); %I would like to be able to set each edge indivdualy.
How do I set individual edge colors?
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Mike Garrity
am 11 Mär. 2016
Bearbeitet: Mike Garrity
am 11 Mär. 2016
It wants an array with 3 columns, and one row for each edge. The columns are the red, green, and blue components of the color for the edge which corresponds to the row.
A = ones(4) - diag([1 1 1 1]);
G = graph(A);
h = plot(G);
h.EdgeColor = lines(G.numedges);
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/173613/image.png)
But you could create the array some other way.
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Steven Lord
am 11 Mär. 2016
In addition to what Mike said, if you want to make one particular edge or a few edges stand out rather than changing the color of every edge, take a look at the HIGHLIGHT function.
% Create the complete graph on 4 nodes (no self loops)
A = ones(4) - eye(4);
G = graph(A);
% Plot it with red edges of width 2
h = plot(G, 'EdgeColor', 'r', 'LineWidth', 2);
% Highlight the edge (2, 3) in black and make it width 5
highlight(h, 2, 3, 'EdgeColor', 'k', 'LineWidth', 5)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/182598/image.jpeg)
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