Changeset 7485

Timestamp:

Sep 7, 2009, 11:37:31 AM (15 years ago)

Author:

steve

Message:

Allow max and min timestep to be changed dynamically

File:

• anuga_core/source/anuga/abstract_2d_finite_volumes/domain.py (modified) (5 diffs)

anuga_core/source/anuga/abstract_2d_finite_volumes/domain.py

@@ -13 +13 @@
 from anuga.config import epsilon
 from anuga.config import beta_euler, beta_rk2
+
 from anuga.abstract_2d_finite_volumes.neighbour_mesh import Mesh
 from anuga.abstract_2d_finite_volumes.generic_boundary_conditions\
@@ -222 +223 @@
         from anuga.config import protect_against_isolated_degenerate_timesteps
         from anuga.config import default_order
+        from anuga.config import max_timestep, min_timestep
 
         self.beta_w = beta_w
@@ -237 +239 @@
         self.set_timestepping_method(timestepping_method)
         self.set_beta(beta_w)
+        self.set_evolve_max_timestep(max_timestep)
+        self.set_evolve_min_timestep(min_timestep)
         self.boundary_map = None  # Will be populated by set_boundary
 
@@ -441 +445 @@
         return self.beta
 
+
+    ##
+    # @brief Set the max timestep for time evolution
+    # @param max_timestep The new max timestep value.
+    def set_evolve_max_timestep(self, max_timestep):
+        """Set default max_timestep for evolving."""
+
+        self.evolve_max_timestep = max_timestep
+
+
+    ##
+    # @brief Get the max timestep for time evolution
+    # @return The max timestep value.
+    def get_evolve_max_timestep(self):
+        """Set default max_timestep for evolving."""
+
+        return self.evolve_max_timestep
+
+    ##
+    # @brief Set the min timestep for time evolution
+    # @param min_timestep The new min timestep value.
+    def set_evolve_min_timestep(self, min_timestep):
+        """Set default min_timestep for evolving."""
+
+        self.evolve_min_timestep = min_timestep
+
+
+    ##
+    # @brief Get the min timestep for time evolution
+    # @return The min timestep value.
+    def get_evolve_min_timestep(self):
+        """Set default max_timestep for evolving."""
+
+        return self.evolve_min_timestep     
+
+
+  
     ##
     # @brief Set default (spatial) order.
@@ -1634 +1675 @@
     # @param finaltime
     def update_timestep(self, yieldstep, finaltime):
-        from anuga.config import min_timestep, max_timestep
+        min_timestep = self.get_evolve_min_timestep()
+        max_timestep = self.get_evolve_max_timestep()
 
         # Protect against degenerate timesteps arising from isolated