3d + plugin tutorial

tutorial/t9.geo

+/********************************************************************* 
+ *
+ *  Gmsh tutorial 9
+ * 
+ *  Post-Processing, Plugins
+ *
+ *********************************************************************/
+
+// Plugins can be added to Gmsh in order to extend its
+// capabilities. For example, post-processing plugins can modify a
+// view, or create a new view based on previously loaded views. Three
+// default plugins are available at the time of writing: CutMap,
+// CutPlane and CutSphere. These plugins are just examples of how
+// plugins (will) work.
+
+// Let's load a three dimension scalar view
+
+Merge "view3.pos" ;
+
+// Plugins can be controlled as other options in Gmsh. For example,
+// the CutMap plugin extracts an isovalue surface from a 3D scalar
+// view. The plugin can either be called from the graphical interface
+// (right click on the view button, then Plugins->CutMap), or from
+// the command file, as is shown below.
+
+// This sets the optional parameter A of the CutMap plugin to the
+// value 0.34 (see the About in the graphical interface for the
+// documentation of each plugin), and runs the plugin:
+
+Plugin(CutMap).A = 0.67 ; 
+Plugin(CutMap).Run ; 
+
+Plugin(CutPlane).A = 0 ; 
+Plugin(CutPlane).B = 0.2 ; 
+Plugin(CutPlane).C = 1 ; 
+Plugin(CutPlane).D = 0 ; 
+Plugin(CutPlane).Run ;