Plotting a 3D matrix graph
9 Ansichten (letzte 30 Tage)
Ältere Kommentare anzeigen
Bhavz
am 24 Aug. 2014
Kommentiert: Bhavz
am 26 Aug. 2014
link(1,:)=[1 2]; link(2,:)=[1 3]; link(3,:)=[1 4]; link(4,:)=[2 6]; link(5,:)=[3 6]; link(6,:)=[3 7]; link(7,:)=[4 8]; link(8,:)=[4 9]; link(9,:)=[6 10]; link(10,:)=[7 10]; link(11,:)=[8 11]; link(12,:)=[8 12]; link(13,:)=[9 12]; link(14,:)=[9 13]; link(15,:)=[1 5]; link(16,:)=[5 13];
How would i plot the above links/edges vs a value fval that i am obtaining through my coding program in a 3D matrix graph or some other graph which is feasible in my case .Please do help as I have been stuck with this for ages
0 Kommentare
Akzeptierte Antwort
Matz Johansson Bergström
am 24 Aug. 2014
Bearbeitet: Matz Johansson Bergström
am 24 Aug. 2014
First, I assume that the graph is undirected, edges are going both ways, but you might want to change that maybe.
A = zeros(13, 13); %adjacency matrix, assume undirected graph
link(1,:)=[1 2];
link(2,:)=[1 3];
link(3,:)=[1 4];
link(4,:)=[2 6];
link(5,:)=[3 6];
link(6,:)=[3 7];
link(7,:)=[4 8];
link(8,:)=[4 9];
link(9,:)=[6 10];
link(10,:)=[7 10];
link(11,:)=[8 11];
link(12,:)=[8 12];
link(13,:)=[9 12];
link(14,:)=[9 13];
link(15,:)=[1 5];
link(16,:)=[5 13];
nlinks = length(link);
inds = sub2ind(size(A), link(:,1), link(:,2)) %convert to index in the adjacency matrix
A(inds) = 1; %the points are connected
%Making A symmetric (undirected graph)
A = triu(A, 1);
A = A + A';
%Positioning the nodes in a circle
theta = linspace(0, 2*pi, nlinks);
x = cos(theta);
y = sin(theta);
gplot(A, [x' y'], 'o-')
hold on
%Put text at the nodes
scale = 1.07; %radius of the text positions
for i = 1:size(A,1)
if sum(A(i,:)) > 0 %if there are any links
text(scale*x(i), scale*y(i), num2str(i), 'fontsize', 16,...
'HorizontalAlignment', 'center')%num2str(nums(i)))
end
end
axis([-1.1,1.1,-1.1,1.1])
So, I first create a adjacency matrix from the links you provided. Then I give gplot the coordinates to the node positions using a circle, that just seemed to work in this case. If you wish to place the nodes in another position you can give other coordinates to x and y.
I also added text at the node positions so you can easily check that it is correct.
2 Kommentare
Weitere Antworten (0)
Siehe auch
Kategorien
Mehr zu Introduction to Installation and Licensing finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!