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#!/usr/bin/env python
## Program: VMTK
## Module: $RCSfile: vmtkmeshlambda2.py,v $
## Language: Python
## Date: $Date: 2005/09/14 09:49:59 $
## Version: $Revision: 1.6 $
## Copyright (c) Luca Antiga, David Steinman. All rights reserved.
## See LICENCE file for details.
## This software is distributed WITHOUT ANY WARRANTY; without even
## the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
## PURPOSE. See the above copyright notices for more information.
import vtkvmtk
import vtk
import sys
import pypes
vmtkmeshlambda2 = 'vmtkMeshLambda2'
class vmtkMeshLambda2(pypes.pypeScript):
def __init__(self):
pypes.pypeScript.__init__(self)
self.Mesh = None
self.VelocityArrayName = None
self.Lambda2ArrayName = 'Lambda2'
self.ConvergenceTolerance = 1E-6
self.QuadratureOrder = 3
self.SetScriptName('vmtkmeshlambda2')
self.SetScriptDoc('compute lambda2 from a velocity field')
self.SetInputMembers([
['Mesh','i','vtkUnstructuredGrid',1,'','the input mesh','vmtkmeshreader'],
['VelocityArrayName','velocityarray','str',1,'',''],
['Lambda2ArrayName','lambda2array','str',1,'',''],
['ConvergenceTolerance','tolerance','float',1,'',''],
['QuadratureOrder','quadratureorder','int',1,'','']
])
self.SetOutputMembers([
['Mesh','o','vtkUnstructuredGrid',1,'','the output mesh','vmtkmeshwriter']
])
def Execute(self):
if (self.Mesh == None):
self.PrintError('Error: no Mesh.')
lambda2Filter = vtkvmtk.vtkvmtkMeshLambda2()
lambda2Filter.SetInput(self.Mesh)
lambda2Filter.SetVelocityArrayName(self.VelocityArrayName)
lambda2Filter.SetLambda2ArrayName(self.Lambda2ArrayName)
lambda2Filter.SetConvergenceTolerance(self.ConvergenceTolerance)
lambda2Filter.SetQuadratureOrder(self.QuadratureOrder)
lambda2Filter.ComputeIndividualPartialDerivativesOn()
lambda2Filter.ForceBoundaryToNegativeOn()
lambda2Filter.Update()
self.Mesh = lambda2Filter.GetOutput()
if self.Mesh.GetSource():
self.Mesh.GetSource().UnRegisterAllOutputs()
if __name__=='__main__':
main = pypes.pypeMain()
main.Arguments = sys.argv
main.Execute()
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