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modCellToFaceVariable.py
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modCellToFaceVariable.py
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#!/usr/bin/env python
## -*-Pyth-*-
# ###################################################################
# FiPy - Python-based finite volume PDE solver
#
# FILE: "modCellToFaceVariable.py"
#
# Author: Jonathan Guyer <guyer@nist.gov>
# Author: Daniel Wheeler <daniel.wheeler@nist.gov>
# Author: James Warren <jwarren@nist.gov>
# mail: NIST
# www: http://www.ctcms.nist.gov/fipy/
#
# ========================================================================
# This software was developed at the National Institute of Standards
# and Technology by employees of the Federal Government in the course
# of their official duties. Pursuant to title 17 Section 105 of the
# United States Code this software is not subject to copyright
# protection and is in the public domain. FiPy is an experimental
# system. NIST assumes no responsibility whatsoever for its use by
# other parties, and makes no guarantees, expressed or implied, about
# its quality, reliability, or any other characteristic. We would
# appreciate acknowledgement if the software is used.
#
# This software can be redistributed and/or modified freely
# provided that any derivative works bear some notice that they are
# derived from it, and any modified versions bear some notice that
# they have been modified.
# ========================================================================
# See the file "license.terms" for information on usage and redistribution
# of this file, and for a DISCLAIMER OF ALL WARRANTIES.
#
# ###################################################################
##
__docformat__ = 'restructuredtext'
__all__ = []
from fipy.tools import numerix
from fipy.tools import inline
from fipy.variables.arithmeticCellToFaceVariable import _ArithmeticCellToFaceVariable
class _ModCellToFaceVariable(_ArithmeticCellToFaceVariable):
def __init__(self, var, modIn):
_ArithmeticCellToFaceVariable.__init__(self,var)
self.modIn = modIn
if inline.doInline:
def _calcValue_(self, alpha, id1, id2):
val = self._array.copy()
inline._runInline(self.modIn + """
int ID1 = id1[i];
int ID2 = id2[i];
double cell2 = var[ID2];
val[i] = mod(cell2 - var[ID1]) * alpha[i] + var[ID1];
""",var = self.var.numericValue,
val = val,
alpha = alpha,
id1 = id1, id2 = id2,
ni = self.mesh.numberOfFaces)
return self._makeValue(value = val)