The Helios simulation system is a versatile modeling framework that handles tasks such as managing geometry and associated data structures through a C++ API. Plug-ins build off of the Helios core engine, and access the geometry and data via the Helios context. The sytem comes with a visualization plug-in that can produce stunning renderings of model geometry and data with relatively little effort.
Changes related to deleting objects when all constituent primitives have been deleted in deletePrimitive, deleteObject, setTileObjectSubdivisionsCount, loadXML, and setPrimitiveParentObjectID