comparison toolboxes/graph_visualisation/graphViz4Matlab/layouts/Radiallayout.m @ 0:e9a9cd732c1e tip

first hg version after svn

+classdef Radiallayout < Gvizlayout
+% A layout that also uses graphviz but calls twopi instead of neato to 
+% to display the graph like a tree. 
+%
+% Matthew Dunham
+% University of British Columbia 
+% http://www.cs.ubc.ca/~mdunham/  
+    methods
+       function obj = Radiallayout(name)
+            if(nargin < 1)
+                obj.name = 'Radiallayout';
+            else
+                obj.name = name;
+            end
+            load glicons;
+            obj.image = icons.radial;
+            obj.shortDescription = 'Radial Layout (GraphViz)'; 
+       end
+       
+        function available = isavailable(obj)
+        % Make sure graphViz is available. 
+            available = Gvizlayout.queryGviz('twopi');
+            if(not(available))
+                   fprintf('Please install or upgrade graphViz\n');
+            end
+        end
+       
+    end
+    
+    methods(Access = 'protected')
+      
+       function callGraphViz(obj)
+       % Call GraphViz to determine an optimal layout. Write this layout in
+       % layout.dot for later parsing. 
+           err = system(['twopi -Tdot -Gmaxiter=5000 -Gstart=7 -o ',obj.layoutFile,' ',obj.adjFile]);
+           if(err),error('Sorry, unknown GraphViz failure, try another layout'); end
+       end
+       
+      
+      
+    end
+   
+end