* Moves the Meshmerizer to a separate plugin

* Experimental.   Linux Prebuild needs testing.
* One more update after this to remove the ODEMeshing directory....

1 files changed, 83 insertions, 0 deletions

diff --git a/OpenSim/Region/Physics/Meshing/Extruder.cs b/OpenSim/Region/Physics/Meshing/Extruder.cs
new file mode 100644
index 0000000..63d727f
--- /dev/null
+++ b/OpenSim/Region/Physics/Meshing/Extruder.cs
@@ -0,0 +1,83 @@
+using System;

+using System.Collections.Generic;

+using System.Text;

+

+namespace OpenSim.Region.Physics.Meshing

+{

+    class Extruder

+    {

+        public float startParameter;

+        public float stopParameter;

+        public Manager.PhysicsVector size;

+

+        public Mesh Extrude(Mesh m)

+        {

+            // Currently only works for iSteps=1;

+            Mesh result = new Mesh();

+

+            Mesh workingPlus  = m.Clone();

+            Mesh workingMinus = m.Clone();

+

+            foreach (Vertex v in workingPlus.vertices)

+            {

+                if (v == null)

+                    continue;

+

+                v.Z = +.5f;

+                v.X *= size.X;

+                v.Y *= size.Y;

+                v.Z *= size.Z;

+            }

+

+            foreach (Vertex v in workingMinus.vertices)

+            {

+                if (v == null)

+                    continue;

+

+                v.Z = -.5f;

+                v.X *= size.X;

+                v.Y *= size.Y;

+                v.Z *= size.Z;

+            }

+

+            foreach (Triangle t in workingMinus.triangles)

+            {

+                t.invertNormal();

+            }

+

+            result.Append(workingMinus);

+            result.Append(workingPlus);

+

+            int iLastNull = 0;

+            for (int i = 0; i < workingPlus.vertices.Count; i++)

+            {

+                int iNext = (i + 1);

+                

+                if (workingPlus.vertices[i] == null) // Can't make a simplex here

+                {

+                    iLastNull = i+1;

+                    continue;

+                }

+

+                if (i == workingPlus.vertices.Count-1) // End of list

+                {

+                    iNext = iLastNull;

+                }

+

+                if (workingPlus.vertices[iNext] == null) // Null means wrap to begin of last segment

+                {

+                    iNext = iLastNull;

+                }

+

+                Triangle tSide;

+                tSide = new Triangle(workingPlus.vertices[i], workingMinus.vertices[i], workingPlus.vertices[iNext]);

+                result.Add(tSide);

+

+                tSide = new Triangle(workingPlus.vertices[iNext], workingMinus.vertices[i], workingMinus.vertices[iNext]);

+                result.Add(tSide);

+            }

+

+            return result;

+        }

+    }

+}