MATLAB: Use of coordinates to plot a figure as shown

coordinatesdraw linesfigureplotshape

I am trying to make a plot of some coordinates that represent each node in the system and get the lines drawn as shown in the figure. Making a plot for the coordinates is no problem, writing a script that can make the lines, im clueless.
Thank you

Best Answer

The gplot function is probably the easiest way to do this:
   xy = NodeCoordinates;
   ee = ElementNodes;
   n = size(xy,1);
   adj = sparse(ee(:,1), ee(:,2), ones(size(ee,1),1), n,n);
   gplot(adj, xy);
   hold on;
   plot(xy(:,1), xy(:,2), 'k.');
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