Package esys :: Package modellib :: Module geometry :: Class ConstrainValue
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Type ConstrainValue

    object --+            
             |            
LinkableObject --+        
                 |        
      ParameterSet --+    
                     |    
                 Model --+
                         |
                        ConstrainValue


selects values for a given distribution to be used as a constrain. the location of the constrain are he faces of a rectangular domain. This Model is typically used in time dependend problems to fix the values in a given initial condition.
Method Summary
  __init__(self, debug)
  doInitialization(self)
initialize time stepping
    Inherited from Model
  __str__(self)
  doFinalization(self)
Finalizes the time stepping.
  doStep(self, dt)
Executes an iteration step at a time step.
  doStepPostprocessing(self, dt)
Finalalizes the time step.
  doStepPreprocessing(self, dt)
Sets up a time step of step size dt.
  finalize(self)
Returns False if the time stepping is finalized.
  getSafeTimeStepSize(self, dt)
Returns a time step size which can safely be used.
  terminateIteration(self)
Returns True if iteration on a time step is terminated.
  toDom(self, document, node)
toDom method of Model class
  writeXML(self, ostream)
Writes the object as an XML object into an output stream.
    Inherited from ParameterSet
  __delattr__(self, name)
Removes the attribute name.
  __iter__(self)
Creates an iterator over the parameter and their values.
  __repr__(self)
  declareParameter(self, **parameters)
Declares a new parameter(s) and its (their) initial value.
  declareParameters(self, parameters)
Declares a set of parameters.
  fromDom(cls, doc)
(Class method)
  releaseParameters(self, name)
Removes parameter name from the paramameters.
  showParameters(self)
Returns a descrition of the parameters.
    Inherited from LinkableObject
  __getattr__(self, name)
Returns the value of attribute name.
  __setattr__(self, name, value)
Sets the value for attribute name.
  getAttributeObject(self, name)
Return the object stored for attribute name.
  hasAttribute(self, name)
Returns True if self as attribute name.
  trace(self, msg)
If debugging is on, print the message, otherwise do nothing
    Inherited from object
  __getattribute__(...)
x.__getattribute__('name') <==> x.name
  __hash__(x)
x.__hash__() <==> hash(x)
  __new__(T, S, ...)
T.__new__(S, ...) -> a new object with type S, a subtype of T
  __reduce__(...)
helper for pickle
  __reduce_ex__(...)
helper for pickle

Class Variable Summary
    Inherited from Model
float UNDEF_DT = 1.0000000000000001e+300                                               
    Inherited from LinkableObject
count number_sequence = <itertools.count object at 0x401ff100>

Instance Method Details

doInitialization(self)

initialize time stepping
Overrides:
esys.escript.modelframe.Model.doInitialization

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