Also store junction graph in deproj objects.

src/@deproj/deproj.m

@@ -3,12 +3,14 @@ classdef deproj
     
     properties
         epicells
+        junction_graph
         units
     end
     
     methods
-        function obj = deproj( epicells, units )
+        function obj = deproj( epicells, junction_graph, units )
             obj.epicells = epicells;
+            obj.junction_graph = junction_graph;
             obj.units = units;
         end
     end

src/@deproj/from_heightmap.m

@@ -146,7 +146,7 @@ function obj = from_heightmap( ...
         epicells( i ) = epicell( o.boundary, o.junctions, i  );
     end
     
-    obj = deproj( epicells, units );
+    obj = deproj( epicells, junction_graph, units );
     
     fprintf('Done in %.1f seconds.\n', toc )