TGIS_DynamicAggregatorAbstract.IsPreparing property

True while the aggregator is executing Prepare for the current draw cycle.

# Python
@property
def IsPreparing(
  self
) -> bool: 

PURPOSE: Report whether aggregation is currently in progress.

BEHAVIOR: Read-only Boolean flag set by the framework while Prepare is running and cleared when the aggregation context is released after rendering.

CONSTRAINTS: Read-only state indicator valid only for the current aggregation cycle.