Changeset 4267

Timestamp:

Feb 18, 2007, 8:23:19 AM (18 years ago)

Author:

jack

Message:

Added support for custom opacity for height quantities. See the updated visualise_rectangle.py

Location:

anuga_core/source/anuga

Files:

• examples/visualise_rectangle.py (modified) (1 diff)
• visualiser/visualiser.py (modified) (4 diffs)

anuga_core/source/anuga/examples/visualise_rectangle.py

@@ -49 +49 @@
 # Remember to set dynamic=True for time-varying quantities
 v.render_quantity_height("elevation", dynamic=False)
-v.render_quantity_height("stage", dynamic=True)
+# Make the stage semitransparent
+v.render_quantity_height("stage", opacity=0.5, dynamic=True)
 
 # Colour the stage:

anuga_core/source/anuga/visualiser/visualiser.py

@@ -19 +19 @@
         self.height_dynamic = {}
         self.height_offset = {}
+        self.height_opacity = {}
 
         # Structures for colouring quantities
@@ -113 +114 @@
         pass
 
-    def render_quantity_height(self, quantityName, zScale=1.0, offset=0.0, dynamic=True):
+    def render_quantity_height(self, quantityName, zScale=1.0, offset=0.0, opacity=1.0, dynamic=True):
         """Instruct the visualiser to render a quantity using the
         value at a point as its height.  The value at each point is
@@ -124 +125 @@
         self.height_offset[quantityName] = offset
         self.height_dynamic[quantityName] = dynamic
+        self.height_opacity[quantityName] = opacity
 
     def update_height_quantity(self, quantityName, dynamic=True):
@@ -153 +155 @@
         if not self.vtk_actors.has_key(quantityName):
             actor = self.vtk_actors[quantityName] = vtkActor()
+            actor.GetProperty().SetOpacity(self.height_opacity[quantityName])
             actor.SetMapper(mapper)
             self.vtk_renderer.AddActor(actor)