* First version of automated colour based boundary conditions for OpenCascade geometry

* Modified the menustat.tcl file to add an entry in the "Special" menu for the colour based boundary properties functionality
* Added the relevant TCL wrapper functions in ngpkg.cpp to enable the above functionality
* Note: The core functionality is implemented in the file "occauxfunctions.cpp"

libsrc/occ/occgeom.cpp

@@ -1243,18 +1243,18 @@ namespace netgen
       TDF_LabelSequence step_shapes;
       step_shape_contents->GetShapes(step_shapes);
 
-      /*
+      
       // List out the available colours in the STEP File as Colour Names
-      TDF_LabelSequence allColours;
+      TDF_LabelSequence all_colours;
-      stepColourContents->GetColors(allColours);
+      step_colour_contents->GetColors(all_colours);
-      cout << "Number of colours in STEP = " << allColours.Length() << endl;
+      PrintMessage(4,"Number of colours in STEP File: ",all_colours.Length());
-      for(int i = 1; i <= allColours.Length(); i++)
+      for(int i = 1; i <= all_colours.Length(); i++)
       {
       Quantity_Color col;
-      stepColourContents->GetColor(allColours.Value(i),col);
+      step_colour_contents->GetColor(all_colours.Value(i),col);
-      cout << "Colour [" << i << "] = " << col.StringName(col.Name()) << endl;
+      PrintMessage(4, "Colour [", i, "] = ",col.StringName(col.Name()));
       }
-      */
+      
 
       // For the STEP File Reader in OCC, the 1st Shape contains the entire 
       // compound geometry as one shape

ng/menustat.tcl

@@ -776,7 +776,8 @@ menu .ngmenu.special
     }
 .ngmenu.special add command -label "Helmholtz Mesh grading" \
     -command { Ng_HelmholtzMesh; }
-
+.ngmenu.special add command -label "Colour-based boundary conditions" \
+    -command { Ng_OCCAutoColourBcProps; redraw }
 
 
 # menu .mbar.stl.menu

ng/ngpkg.cpp

@@ -18,18 +18,19 @@ The interface between the GUI and the netgen library
 #include <linalg.hpp>
 #include <csg.hpp>
 
-#ifdef OCCGEOMETRY
-#include <occgeom.hpp>
-#endif
-
-
 #include <geometry2d.hpp>
 #include <stlgeom.hpp>
-
 #include <meshing.hpp>
+
+#ifdef OCCGEOMETRY
+#include <occgeom.hpp>
+#include "../libsrc/occ/occauxfunctions.hpp"
+#endif
+
 #include <incvis.hpp>
 #include <visual.hpp>
 
+
 #ifdef SOCKETS
 #include "../libsrc/sockets/sockets.hpp"
 #include "../libsrc/sockets/socketmanager.hpp"
@@ -1539,17 +1540,57 @@ namespace netgen
 	   Tcl_SetResult (interp, buf, TCL_STATIC);
     }
     return TCL_OK;
-#else
+#else // No OCCGEOMETRY 
 
     Tcl_SetResult (interp, (char *)"Ng_SurfaceMeshSize currently supports only OCC (STEP/IGES) Files", TCL_STATIC);
     return TCL_ERROR;
     
-#endif
+#endif // OCCGEOMETRY
   }
 
 
 
 
+  // Philippose - 10/03/2009
+  // TCL interface function for the Automatic Colour-based
+  // definition of boundary conditions for OCC Geometry
+  int Ng_OCCAutoColourBcProps (ClientData clientData,
+		                         Tcl_Interp * interp,
+		                         int argc, tcl_const char *argv[])
+  {
+#ifdef OCCGEOMETRY
+
+     if(!mesh.Ptr())
+     {
+        Tcl_SetResult (interp, (char *)"Ng_OCCAutoColourBcProps: Valid netgen mesh required...please mesh the OCC Geometry first", TCL_STATIC);
+	     return TCL_ERROR;
+     }
+
+     if (!occgeometry)
+     {
+        Tcl_SetResult (interp, (char *)"Ng_OCCAutoColourBcProps: Currently supports only OCC (STEP/IGES) Geometry", TCL_STATIC);
+	     return TCL_ERROR;
+     }
+
+     if(occgeometry->face_colours.IsNull())
+     {
+        Tcl_SetResult (interp, (char *)"Ng_OCCAutoColourBcProps: No colour data detected in the current OCC Geometry", TCL_STATIC);
+	     return TCL_ERROR;
+     }
+
+     OCCAutoColourBcProps(*mesh, *occgeometry);
+
+     return TCL_OK;
+#else
+
+     Tcl_SetResult (interp, (char *)"Ng_OCCAutoColourBcProps currently supports only OCC (STEP/IGES) Geometry", TCL_STATIC);
+     return TCL_ERROR;
+
+#endif // OCCGEOMETRY
+  }
+                          
+                          
+  
   int Ng_SetNextTimeStamp  (ClientData clientData,
 			    Tcl_Interp * interp,
 			    int argqc, tcl_const char *argv[])
@@ -4886,7 +4927,10 @@ namespace netgen
 		       (ClientData)NULL,
 		       (Tcl_CmdDeleteProc*) NULL);
 
-
+    Tcl_CreateCommand (interp, "Ng_OCCAutoColourBcProps", Ng_OCCAutoColourBcProps,
+		       (ClientData)NULL,
+		       (Tcl_CmdDeleteProc*) NULL);
+    
 
     // meshing
     Tcl_CreateCommand (interp, "Ng_GenerateMesh", Ng_GenerateMesh,