def setModelCoordinatesField(self, modelCoordinatesField: Field):
finiteElementField = modelCoordinatesField.castFiniteElement()
assert finiteElementField.isValid() and (
finiteElementField.getNumberOfComponents() == 3)
self._modelCoordinatesField = finiteElementField
self._modelCoordinatesFieldName = modelCoordinatesField.getName()
modelReferenceCoordinatesFieldName = "reference_" + self._modelCoordinatesField.getName(
)
orphanFieldByName(self._fieldmodule,
modelReferenceCoordinatesFieldName)
self._modelReferenceCoordinatesField = createFieldFiniteElementClone(
self._modelCoordinatesField, modelReferenceCoordinatesFieldName)
self._updateMarkerCoordinatesField()
self._updateMarkerDataLocationCoordinatesField()
def create_field_finite_element_clone(source_field: Field,
name: str,
managed=False) -> FieldFiniteElement:
"""
Copy an existing Finite Element Field to a new field of supplied name.
Note: does not handle time-varying parameters.
New field is not managed by default.
:param source_field: Zinc finite element field to copy.
:param name: The name of the new field, asserts that no field of that name exists.
:param managed: Managed state of field created here.
:return: New identically defined field with supplied name.
"""
assert source_field.castFiniteElement().isValid(), \
"opencmiss.utils.zinc.field.createFieldFiniteElementClone. Not a Zinc finite element field"
fieldmodule = source_field.getFieldmodule()
field = fieldmodule.findFieldByName(name)
assert not field.isValid(
), "opencmiss.utils.zinc.field.createFieldFiniteElementClone. Target field name is in use"
with ChangeManager(fieldmodule):
# Zinc needs a function to do this efficiently; currently serialise to string, replace field name and reload!
source_name = source_field.getName()
region = fieldmodule.getRegion()
sir = region.createStreaminformationRegion()
srm = sir.createStreamresourceMemory()
sir.setFieldNames([source_name])
region.write(sir)
result, buffer = srm.getBuffer()
# small risk of modifying other text here:
source_bytes = bytes(") " + source_name + ",", "utf-8")
target_bytes = bytes(") " + name + ",", "utf-8")
buffer = buffer.replace(source_bytes, target_bytes)
sir = region.createStreaminformationRegion()
sir.createStreamresourceMemoryBuffer(buffer)
result = region.read(sir)
assert result == RESULT_OK
# note currently must have called endChange before field can be found
field = fieldmodule.findFieldByName(name).castFiniteElement()
field.setManaged(managed)
assert field.isValid()
return field
def setMarkerGroup(self, markerGroup: Field):
self._markerGroup = None
self._markerGroupName = None
self._markerNodeGroup = None
self._markerLocationField = None
self._markerCoordinatesField = None
self._markerNameField = None
self._markerDataGroup = None
self._markerDataCoordinatesField = None
self._markerDataNameField = None
self._markerDataLocationField = None
self._markerDataLocationCoordinatesField = None
self._markerDataDeltaField = None
self._markerDataLocationGroupField = None
self._markerDataLocationGroup = None
if not markerGroup:
return
fieldGroup = markerGroup.castGroup()
assert fieldGroup.isValid()
self._markerGroup = fieldGroup
self._markerGroupName = markerGroup.getName()
nodes = self._fieldmodule.findNodesetByFieldDomainType(
Field.DOMAIN_TYPE_NODES)
self._markerNodeGroup = self._markerGroup.getFieldNodeGroup(
nodes).getNodesetGroup()
if self._markerNodeGroup.isValid():
node = self._markerNodeGroup.createNodeiterator().next()
if node.isValid():
fieldcache = self._fieldmodule.createFieldcache()
fieldcache.setNode(node)
fielditer = self._fieldmodule.createFielditerator()
field = fielditer.next()
while field.isValid():
if field.isDefinedAtLocation(fieldcache):
if (not self._markerLocationField
) and field.castStoredMeshLocation().isValid():
self._markerLocationField = field
elif (not self._markerNameField) and (
field.getValueType()
== Field.VALUE_TYPE_STRING):
self._markerNameField = field
field = fielditer.next()
self._updateMarkerCoordinatesField()
else:
self._markerNodeGroup = None
datapoints = self._fieldmodule.findNodesetByFieldDomainType(
Field.DOMAIN_TYPE_DATAPOINTS)
self._markerDataGroup = self._markerGroup.getFieldNodeGroup(
datapoints).getNodesetGroup()
if self._markerDataGroup.isValid():
datapoint = self._markerDataGroup.createNodeiterator().next()
if datapoint.isValid():
fieldcache = self._fieldmodule.createFieldcache()
fieldcache.setNode(datapoint)
fielditer = self._fieldmodule.createFielditerator()
field = fielditer.next()
while field.isValid():
if field.isDefinedAtLocation(fieldcache):
if (not self._markerDataCoordinatesField) and field.isTypeCoordinate() and \
(field.getNumberOfComponents() == 3) and (field.castFiniteElement().isValid()):
self._markerDataCoordinatesField = field
elif (not self._markerDataNameField) and (
field.getValueType()
== Field.VALUE_TYPE_STRING):
self._markerDataNameField = field
field = fielditer.next()
else:
self._markerDataGroup = None
self._calculateMarkerDataLocations()
def setDataCoordinatesField(self, dataCoordinatesField: Field):
finiteElementField = dataCoordinatesField.castFiniteElement()
assert finiteElementField.isValid() and (
finiteElementField.getNumberOfComponents() == 3)
self._dataCoordinatesFieldName = dataCoordinatesField.getName()
self._dataCoordinatesField = finiteElementField
