def __div__(self, operande):
"""
This makes the division of two fields or the division of field
by a scalar. It depends weither the operande is a FieldProxy
or a simple scalar numerical value.
"""
try:
if isinstance(operande, FieldProxy):
# The operande is an other field
xmed.inf("Division of %s by %s" %
(self.fieldname, operande.fieldname))
rfieldHandler = xmed.calculator.div(self.__fieldHandler,
operande.__fieldHandler)
else:
# The operande is a scalar numerical value that must be
# considered as an offset in a linear transformation
factor = 1. / operande
offset = 0
xmed.inf("Scaling %s by factor 1/%s" %
(self.fieldname, operande))
rfieldHandler = xmed.calculator.lin(self.__fieldHandler,
factor, offset)
except SALOME.SALOME_Exception, ex:
xmed.err(ex.details.text)
return None
def __add__(self, operande):
"""
This makes the addition of two fields or the addition of a
scalar to a field. It depends weither the operande is a
FieldProxy or a simple scalar numerical value.
"""
# The xmed calculator could raise exceptions coming from
# MEDCoupling. Note that the fieldproxy instances are used
# from within the python console, and for ergonomic reason, we
# choose to not raise the possible exceptions to the console
# by a clear message. Keep this in mind for unit test. You
# have to test the return value, which should not be
# null. This principle is applyed for all operations.
try:
if isinstance(operande, FieldProxy):
# The operande is an other field
xmed.inf("Addition of %s and %s"%(self.fieldname, operande.fieldname))
rfieldHandler = xmed.calculator.add(self.__fieldHandler, operande.__fieldHandler)
else:
# The operande is a scalar numerical value that must be
# considered as an offset in a linear transformation
factor = 1
offset = operande
xmed.inf("Application of the offset %s to %s" % (offset, self.fieldname))
rfieldHandler = xmed.calculator.lin(self.__fieldHandler, factor, offset)
except SALOME.SALOME_Exception, ex:
xmed.err(ex.details.text)
return None
def __rsub__(self, operande):
"""
The user typed 'operande-self' where operande is not a field
proxy. This function process the situation.
"""
# The operande is a numerical value (because otherwise, the
# "sub" method would have been called instead). We may apply
# the command '(self-operande)*(-1)' to activate the __sub__
# method of fieldpoxy.
#
#return (self-operande)*(-1)
#
# We prefer to apply a linear transformation because it can be
# done in one single request to the med calculator.
factor = -1
offset = operande
xmed.inf("Linear transformation %s%s*%s" %
(offset, factor, self.fieldname))
try:
rfieldHandler = xmed.calculator.lin(self.__fieldHandler, factor,
offset)
except SALOME.SALOME_Exception, ex:
xmed.err(ex.details.text)
return None
def __sub__(self, operande):
"""
This makes the substraction of two fields or the substraction
of a scalar to a field. It depends weither the operande is a
FieldProxy or a simple scalar numerical value.
"""
try:
if isinstance(operande, FieldProxy):
# The operande is an other field
xmed.inf("Substraction of %s by %s" %
(self.fieldname, operande.fieldname))
rfieldHandler = xmed.calculator.sub(self.__fieldHandler,
operande.__fieldHandler)
else:
# The operande is a scalar numerical value that must be
# considered as an offset in a linear transformation
factor = 1
offset = -operande
xmed.inf("Application of the offset %s to %s" %
(offset, self.fieldname))
rfieldHandler = xmed.calculator.lin(self.__fieldHandler,
factor, offset)
except SALOME.SALOME_Exception, ex:
xmed.err(ex.details.text)
return None
def __add__(self, operande):
"""
This makes the addition of two fields or the addition of a
scalar to a field. It depends weither the operande is a
FieldProxy or a simple scalar numerical value.
"""
# The xmed calculator could raise exceptions coming from
# MEDCoupling. Note that the fieldproxy instances are used
# from within the python console, and for ergonomic reason, we
# choose to not raise the possible exceptions to the console
# by a clear message. Keep this in mind for unit test. You
# have to test the return value, which should not be
# null. This principle is applyed for all operations.
try:
if isinstance(operande, FieldProxy):
# The operande is an other field
xmed.inf("Addition of %s and %s" %
(self.fieldname, operande.fieldname))
rfieldHandler = xmed.calculator.add(self.__fieldHandler,
operande.__fieldHandler)
else:
# The operande is a scalar numerical value that must be
# considered as an offset in a linear transformation
factor = 1
offset = operande
xmed.inf("Application of the offset %s to %s" %
(offset, self.fieldname))
rfieldHandler = xmed.calculator.lin(self.__fieldHandler,
factor, offset)
except SALOME.SALOME_Exception, ex:
xmed.err(ex.details.text)
return None
def dup(self):
"""
This creates a duplicate of the field. The whole data are
duplicated.
"""
xmed.inf("Duplication of %s"%self.fieldname)
try:
rfieldHandler = xmed.calculator.dup(self.__fieldHandler)
except SALOME.SALOME_Exception, ex:
xmed.err(ex.details.text)
return None
def dup(self):
"""
This creates a duplicate of the field. The whole data are
duplicated.
"""
xmed.inf("Duplication of %s" % self.fieldname)
try:
rfieldHandler = xmed.calculator.dup(self.__fieldHandler)
except SALOME.SALOME_Exception, ex:
xmed.err(ex.details.text)
return None
def __rdiv__(self, operande):
"""
The user typed 'operande/self', we want to execute for each
value of the field the operation 'operande/value'.
"""
xmed.inf("Division of %s by %s" % (operande, self.fieldname))
function = "%s/u"%operande
nbResComp = MEDOP.NBCOMP_DEFAULT
try:
rfieldHandler = xmed.calculator.fct(self.__fieldHandler,function,nbResComp)
except SALOME.SALOME_Exception, ex:
xmed.err(ex.details.text)
return None
def __rdiv__(self, operande):
"""
The user typed 'operande/self', we want to execute for each
value of the field the operation 'operande/value'.
"""
xmed.inf("Division of %s by %s" % (operande, self.fieldname))
function = "%s/u" % operande
nbResComp = MEDOP.NBCOMP_DEFAULT
try:
rfieldHandler = xmed.calculator.fct(self.__fieldHandler, function,
nbResComp)
except SALOME.SALOME_Exception, ex:
xmed.err(ex.details.text)
return None
def __setattr__(self, name, value):
"""
This method realizes the write proxy pattern toward the field
handler. Only some attributes are writable. The list is
specified in the PROXY_ATTRIBUTES_MAP table.
"""
if name in PROXY_ATTRIBUTES_MAP.keys():
if PROXY_ATTRIBUTES_MAP[name] is not None:
xmed.wrn("The modification of this attribute can't be done that way")
msg="Use f.update(%s=\"%s\") instead to ensure synchronisation of data."
xmed.inf(msg%(PROXY_ATTRIBUTES_MAP[name],value))
else:
xmed.err("The modification of the attribute %s is not possible"%name)
else:
self.__dict__[name] = value
def ope(self, function, duplicate=True):
"""
This can be used to apply a transformation function to this
field. The transformation is specified using a literal
equation given as a string where u stands for the field.
"""
# _GBO_ TO BE IMPLEMENTED: the case where duplicate = False
# must modify the object itself and not create a new field
xmed.inf("Operate the equation \"%s\" to %s" %
(function, self.fieldname))
try:
rfieldHandler = xmed.calculator.fct(self.__fieldHandler, function,
MEDOP.NBCOMP_DEFAULT)
except SALOME.SALOME_Exception, ex:
xmed.err(ex.details.text)
return None
def ope(self, function, duplicate=True):
"""
This can be used to apply a transformation function to this
field. The transformation is specified using a literal
equation given as a string where u stands for the field.
"""
# _GBO_ TO BE IMPLEMENTED: the case where duplicate = False
# must modify the object itself and not create a new field
xmed.inf("Operate the equation \"%s\" to %s"%(function,self.fieldname))
try:
rfieldHandler = xmed.calculator.fct(self.__fieldHandler,
function,
MEDOP.NBCOMP_DEFAULT)
except SALOME.SALOME_Exception, ex:
xmed.err(ex.details.text)
return None
def __setattr__(self, name, value):
"""
This method realizes the write proxy pattern toward the field
handler. Only some attributes are writable. The list is
specified in the PROXY_ATTRIBUTES_MAP table.
"""
if name in PROXY_ATTRIBUTES_MAP.keys():
if PROXY_ATTRIBUTES_MAP[name] is not None:
xmed.wrn(
"The modification of this attribute can't be done that way"
)
msg = "Use f.update(%s=\"%s\") instead to ensure synchronisation of data."
xmed.inf(msg % (PROXY_ATTRIBUTES_MAP[name], value))
else:
xmed.err(
"The modification of the attribute %s is not possible" %
name)
else:
self.__dict__[name] = value
def __div__(self, operande):
"""
This makes the division of two fields or the division of field
by a scalar. It depends weither the operande is a FieldProxy
or a simple scalar numerical value.
"""
try:
if isinstance(operande, FieldProxy):
# The operande is an other field
xmed.inf("Division of %s by %s"%(self.fieldname, operande.fieldname))
rfieldHandler = xmed.calculator.div(self.__fieldHandler, operande.__fieldHandler)
else:
# The operande is a scalar numerical value that must be
# considered as an offset in a linear transformation
factor = 1./operande
offset = 0
xmed.inf("Scaling %s by factor 1/%s" % (self.fieldname, operande))
rfieldHandler = xmed.calculator.lin(self.__fieldHandler, factor, offset)
except SALOME.SALOME_Exception, ex:
xmed.err(ex.details.text)
return None
def __sub__(self,operande):
"""
This makes the substraction of two fields or the substraction
of a scalar to a field. It depends weither the operande is a
FieldProxy or a simple scalar numerical value.
"""
try:
if isinstance(operande, FieldProxy):
# The operande is an other field
xmed.inf("Substraction of %s by %s"%(self.fieldname, operande.fieldname))
rfieldHandler = xmed.calculator.sub(self.__fieldHandler, operande.__fieldHandler)
else:
# The operande is a scalar numerical value that must be
# considered as an offset in a linear transformation
factor = 1
offset = -operande
xmed.inf("Application of the offset %s to %s" % (offset, self.fieldname))
rfieldHandler = xmed.calculator.lin(self.__fieldHandler, factor, offset)
except SALOME.SALOME_Exception, ex:
xmed.err(ex.details.text)
return None
def status(local=True, remote=False):
"""
This function return the status of the medop context, i.e. the
list of fields defined in this python session.
"""
status = ""
if local is True:
dvars = pyConsoleGlobals
if dvars is None:
xmed.wrn(
"The stat function required the specification of the python context"
)
xmed.inf(
"Type this command \"import xmed; xmed.setConsoleGlobals(globals())"
)
if remote is True:
status = "========= Fields used in the current context ===\n"
for varkey in dvars.keys():
var = dvars[varkey]
if isinstance(var, FieldProxy):
status += "%s \t(id=%s, name=%s)\n" % (varkey, var.id,
var.fieldname)
if remote is True:
if local is True:
status += "\n========= Fields available in the data manager ===\n"
fieldHandlerList = xmed.dataManager.getFieldHandlerList()
for fieldHandler in fieldHandlerList:
status += "id=%s\tname\t= %s\n\tmesh\t= %s\n\t(it,dt)\t= (%s,%s)\n\tsource\t= %s\n" % (
fieldHandler.id, fieldHandler.fieldname, fieldHandler.meshname,
fieldHandler.iteration, fieldHandler.order,
fieldHandler.source)
status += "---------\n"
if len(fieldHandlerList) > 0:
status += "(use 'f=get(id)' to get a field in the current context)"
return status
def __rsub__(self, operande):
"""
The user typed 'operande-self' where operande is not a field
proxy. This function process the situation.
"""
# The operande is a numerical value (because otherwise, the
# "sub" method would have been called instead). We may apply
# the command '(self-operande)*(-1)' to activate the __sub__
# method of fieldpoxy.
#
#return (self-operande)*(-1)
#
# We prefer to apply a linear transformation because it can be
# done in one single request to the med calculator.
factor = -1
offset = operande
xmed.inf("Linear transformation %s%s*%s" % (offset, factor, self.fieldname))
try:
rfieldHandler = xmed.calculator.lin(self.__fieldHandler, factor, offset)
except SALOME.SALOME_Exception, ex:
xmed.err(ex.details.text)
return None
def status(local=True,remote=False):
"""
This function return the status of the medop context, i.e. the
list of fields defined in this python session.
"""
status=""
if local is True:
dvars = pyConsoleGlobals
if dvars is None:
xmed.wrn("The stat function required the specification of the python context")
xmed.inf("Type this command \"import xmed; xmed.setConsoleGlobals(globals())")
if remote is True:
status="========= Fields used in the current context ===\n"
for varkey in dvars.keys():
var = dvars[varkey]
if isinstance(var, FieldProxy):
status+="%s \t(id=%s, name=%s)\n"%(varkey,var.id,var.fieldname)
if remote is True:
if local is True:
status+="\n========= Fields available in the data manager ===\n"
fieldHandlerList = xmed.dataManager.getFieldHandlerList()
for fieldHandler in fieldHandlerList:
status+="id=%s\tname\t= %s\n\tmesh\t= %s\n\t(it,dt)\t= (%s,%s)\n\tsource\t= %s\n"%(
fieldHandler.id,
fieldHandler.fieldname,
fieldHandler.meshname,
fieldHandler.iteration,
fieldHandler.order,
fieldHandler.source)
status+="---------\n"
if len(fieldHandlerList) > 0:
status+="(use 'f=get(id)' to get a field in the current context)"
return status
