holoviews.core.decollate module#

holoviews.core.decollate.Expr#: alias of HoloviewsExpr

holoviews.core.decollate.KDimIndex#: alias of KDim

class holoviews.core.decollate.StreamIndex(index)#

Bases: tuple

index#: Alias for field number 0

holoviews.core.decollate.decollate(hvobj)[source]#

Decollate transforms a potentially nested dynamic HoloViews object into single DynamicMap that returns a non-dynamic HoloViews object. All nested streams in the input object are copied and attached to the resulting DynamicMap.

Parameters:

hvobjHoloviews object

Returns:

DynamicMap

holoviews.core.decollate.to_expr_extract_streams(hvobj, kdims, streams, original_streams, stream_mapping, container_key=None)[source]#

Build a HoloViewsExpr expression tree from a potentially nested dynamic HoloViews object, extracting the streams and replacing them with StreamIndex objects.

This function is recursive an assumes that initialize_dynamic has already been called on the input object.

Parameters:

hvobjElement or DynamicMap or Layout: Potentially dynamic HoloViews object to represent as a HoloviewsExpr
kdimslist of Dimensions: List that DynamicMap key-dimension objects should be added to
streamslist of Stream: List that cloned extracted streams should be added to
original_streamslist of Stream: List that original extracted streams should be added to
stream_mappingdict: dict to be populated with mappings from container keys to extracted Stream objects, as described by the Callable parameter of the same name.
container_keyint or tuple: key into parent container that is associated to hvobj, or None if hvobj is not in a container

Returns:

HoloviewsExpr expression representing hvobj if hvobj is dynamic. Otherwise,
return hvobj itself