bprocessor-commit

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

Update of /cvsroot/bprocessor/model/src/net/sourceforge/bprocessor/model
In directory sc8-pr-cvs3.sourceforge.net:/tmp/cvs-serv30870/src/net/sourceforge/bprocessor/model

Modified Files:
	Command.java 
Log Message:
extrude command

Index: Command.java
===================================================================
RCS file: /cvsroot/bprocessor/model/src/net/sourceforge/bprocessor/model/Command.java,v
retrieving revision 1.38
retrieving revision 1.39
diff -C2 -d -r1.38 -r1.39
*** Command.java	24 Nov 2007 09:01:37 -0000	1.38
--- Command.java	26 Nov 2007 07:28:59 -0000	1.39
***************
*** 1341,1343 ****
--- 1341,1426 ----
      
    }
+   
+   /**
+    * Extrude
+    */
+   public static class Extrude extends Command {
+     private Surface surface;
+     
+     /**
+      * Constructs Extrude command
+      * @param surface Surface to extrude
+      */
+     public Extrude(Surface surface) {
+       this.surface = surface;
+       parameters.put("distance", 1.0);
+     }
+     
+     
+     /** {@inheritDoc} */
+     @Override
+     public void evaluate() {
+       double distance = parameters.getDouble("distance");
+       List<Surface> sides = new LinkedList();
+       Surface bottom = (Surface) surface.copy(new HashMap());
+       Vertex normal = bottom.normal();
+       normal.scaleInPlace(distance);
+       List vertices = bottom.getVertices();
+       List edges = bottom.getEdges();
+       int n = vertices.size();
+       Vertex[] v = new Vertex[n];
+       Edge[] e = new Edge[n];
+       Vertex[] vmap = new Vertex[n];
+       Edge[] topmap = new Edge[n];
+       Edge[] sidemap = new Edge[n];
+       Surface[] facemap = new Surface[n];
+       Surface top = null;
+       vertices.toArray(v);
+       edges.toArray(e);
+           
+       for (int i = 0; i < n; i++) {
+         vmap[i] = v[i].add(normal);
+       }
+       
+       for (int i = 0; i < n; i++) {
+         topmap[i] = new Edge(vmap[i], vmap[(i + 1) % n]);
+       }
+       
+       for (int i = 0; i < n; i++) {
+         sidemap[i] = new Edge(v[i], vmap[i]);
+       }
+       
+       for (int i = 0; i < n; i++) {
+         Edge b = e[i];
+         Edge r = sidemap[i];
+         Edge l = sidemap[(i + 1) % n];
+         Edge t = topmap[i];
+         List newEdges = new LinkedList();
+         newEdges.add(r);
+         newEdges.add(t);
+         newEdges.add(l);
+         newEdges.add(b);
+         facemap[i] = new Surface(newEdges);
+         sides.add(facemap[i]);
+       }
+       
+       {
+         List newEdges = new LinkedList();
+         for (int i = 0; i < n; i++) {
+           newEdges.add(topmap[n - i - 1]);
+         }
+         top = new Surface(newEdges);
+       }
+       
+       List<Surface> surfaces = new LinkedList();
+       surfaces.add(bottom);
+       surfaces.addAll(sides);
+       surfaces.add(top);
+      
+       Space union = new Space("Extrusion", Space.CONSTRUCTION, true);
+       Shape.addTo(union, surfaces);
+       
+       surface.getOwner().add(union);
+     }
+   }
  }