def update_components(self, mapping):
"""
Change the numerical data associated with some of the Components
in this Data object.
All changes to component numerical data should use this method,
which broadcasts the state change to the appropriate places.
:param mapping: A dict mapping Components or ComponenIDs to arrays.
This method has the following restrictions:
- New compoments must have the same shape as old compoments
- Component subclasses cannot be updated.
"""
for comp, data in mapping.items():
if isinstance(comp, ComponentID):
comp = self.get_component(comp)
data = np.asarray(data)
if data.shape != self.shape:
raise ValueError("Cannot change shape of data")
comp._data = data
# alert hub of the change
if self.hub is not None:
msg = NumericalDataChangedMessage(self)
self.hub.broadcast(msg)
for subset in self.subsets:
clear_cache(subset.subset_state.to_mask)
def update_components(self, mapping):
"""
Change the numerical data associated with some of the Components
in this Data object.
All changes to component numerical data should use this method,
which broadcasts the state change to the appropriate places.
:param mapping: A dict mapping Components or ComponenIDs to arrays.
This method has the following restrictions:
- New compoments must have the same shape as old compoments
- Component subclasses cannot be updated.
"""
for comp, data in mapping.items():
if isinstance(comp, ComponentID):
comp = self.get_component(comp)
data = np.asarray(data)
if data.shape != self.shape:
raise ValueError("Cannot change shape of data")
comp._data = data
# alert hub of the change
if self.hub is not None:
msg = NumericalDataChangedMessage(self)
self.hub.broadcast(msg)
for subset in self.subsets:
clear_cache(subset.subset_state.to_mask)
def update_values_from_data(self, data):
"""
Replace numerical values in data to match values from another dataset.
Notes
-----
This method drops components that aren't present in the new data, and
adds components that are in the new data that were not in the original
data. The matching is done by component label, and components are
resized if needed. This means that for components with matching labels
in the original and new data, the
:class:`~glue.core.component_id.ComponentID` are preserved, and
existing plots and selections will be updated to reflect the new
values. Note that the coordinates are also copied, but the style is
**not** copied.
"""
old_labels = [cid.label for cid in self.components]
new_labels = [cid.label for cid in data.components]
if len(old_labels) == len(set(old_labels)):
old_labels = set(old_labels)
else:
raise ValueError("Non-unique component labels in original data")
if len(new_labels) == len(set(new_labels)):
new_labels = set(new_labels)
else:
raise ValueError("Non-unique component labels in new data")
# Remove components that don't have a match in new data
for cname in old_labels - new_labels:
cid = self.find_component_id(cname)
self.remove_component(cid)
# Update shape
self._shape = data._shape
# Update components that exist in both. Note that we can't just loop
# over old_labels & new_labels since we need to make sure we preserve
# the order of the components, and sets don't preserve order.
for cid in self.components:
cname = cid.label
if cname in old_labels & new_labels:
comp_old = self.get_component(cname)
comp_new = data.get_component(cname)
comp_old._data = comp_new._data
# Add components that didn't exist in original one. As above, we try
# and preserve the order of components as much as possible.
for cid in data.components:
cname = cid.label
if cname in new_labels - old_labels:
cid = data.find_component_id(cname)
comp_new = data.get_component(cname)
self.add_component(comp_new, cid.label)
# Update data label
self.label = data.label
# Update data coordinates
self.coords = data.coords
# alert hub of the change
if self.hub is not None:
msg = NumericalDataChangedMessage(self)
self.hub.broadcast(msg)
for subset in self.subsets:
clear_cache(subset.subset_state.to_mask)
def update_values_from_data(self, data):
"""
Replace numerical values in data to match values from another dataset.
Notes
-----
This method drops components that aren't present in the new data, and
adds components that are in the new data that were not in the original
data. The matching is done by component label, and components are
resized if needed. This means that for components with matching labels
in the original and new data, the
:class:`~glue.core.component_id.ComponentID` are preserved, and
existing plots and selections will be updated to reflect the new
values. Note that the coordinates are also copied, but the style is
**not** copied.
"""
old_labels = [cid.label for cid in self.components]
new_labels = [cid.label for cid in data.components]
if len(old_labels) == len(set(old_labels)):
old_labels = set(old_labels)
else:
raise ValueError("Non-unique component labels in original data")
if len(new_labels) == len(set(new_labels)):
new_labels = set(new_labels)
else:
raise ValueError("Non-unique component labels in new data")
# Remove components that don't have a match in new data
for cname in old_labels - new_labels:
cid = self.find_component_id(cname)
self.remove_component(cid)
# Update shape
self._shape = data._shape
# Update components that exist in both
for cname in old_labels & new_labels:
comp_old = self.get_component(cname)
comp_new = data.get_component(cname)
comp_old._data = comp_new._data
# Add components that didn't exist in original one
for cname in new_labels - old_labels:
cid = data.find_component_id(cname)
comp_new = data.get_component(cname)
self.add_component(comp_new, cid)
# Update data label
self.label = data.label
# Update data coordinates
self.coords = data.coords
# alert hub of the change
if self.hub is not None:
msg = NumericalDataChangedMessage(self)
self.hub.broadcast(msg)
for subset in self.subsets:
clear_cache(subset.subset_state.to_mask)
