[Bprocessor-commit] model/src/net/sourceforge/bprocessor/model Space.java, 1.231, 1.232

[Michael L. <he...@us...>]

Update of /cvsroot/bprocessor/model/src/net/sourceforge/bprocessor/model
In directory sc8-pr-cvs3.sourceforge.net:/tmp/cvs-serv13490/src/net/sourceforge/bprocessor/model

Modified Files:
	Space.java 
Log Message:
euler characteristic compute

Index: Space.java
===================================================================
RCS file: /cvsroot/bprocessor/model/src/net/sourceforge/bprocessor/model/Space.java,v
retrieving revision 1.231
retrieving revision 1.232
diff -C2 -d -r1.231 -r1.232
*** Space.java	20 Dec 2007 14:19:55 -0000	1.231
--- Space.java	18 Jan 2008 14:12:59 -0000	1.232
***************
*** 423,426 ****
--- 423,437 ----
    
    /**
+    * Returns the Euler Characteristic of the envelope
+    * @return Euler Characteristic of envelope 
+    */
+   public int eulerCharacteristic() {
+     Collection<Edge> edges = Surface.edges(envelope);
+     Collection<Vertex> vertices = Edge.vertices(edges);
+     int euler = vertices.size() - edges.size() + envelope.size(); 
+     return euler;
+   }
+   
+   /**
     * Notify that this Space has changed
     * FIXME: Make the change-update mechanism general
***************
*** 529,532 ****
--- 540,544 ----
        }
      }
+     res.add(new Attribute("Euler", Double.valueOf(eulerCharacteristic())));
      res.add(new Attribute("Description", getDescription()));
      if (getModellor() != null) {
***************
*** 539,542 ****
--- 551,555 ----
        }
      }
+     
      return res;
    }