def __init__(self,
color=settings.SUBSET_COLORS[0],
alpha=0.5,
label=None,
subset_state=None):
"""
Create a new empty SubsetGroup
Note: By convention, SubsetGroups should be created via
DataCollection.new_subset.
"""
self.subsets = []
if subset_state is None:
self.subset_state = SubsetState()
else:
self.subset_state = subset_state
self.label = label
self.style = VisualAttributes(parent=self)
self.style.markersize *= 2.5
self.style.linewidth *= 2.5
self.style.color = color
self.style.alpha = alpha
def _load_subset_state(rec, context):
return SubsetState()
def _make_selector(roi, c):
make_selector(roi=roi, c=c)
return SubsetState()