UDM compared to User Defined Primitives

User Defined Models (UDM) resemble User Defined Primitives (UDP):

• Ansys EM products can be extended by users through new UDMs
• UDM plugins are discovered by searching standard directory paths
• Plugins for static UDM can build model using 'callback interfaces' (like create-box, create-cylinder, subtract etc) similar to UDP.
• UDMs run inside Ansys EM applications
• UDMs provide geometry, topology, persistence and parameters

In contrast to UDP:

• UDM provides multiple Parts/CS/etc.

UDP provides primitive operation only for a single Part

• UDM provides part attributes and material assignment

UDP does not define part attributes or material

UDM Properties have four tabs - Definitions, Parameters, Options and Info

• Definition tab has:

• UDM name
• Coordinate system used to position UDM
• May have external reference to file

• Info tab has:

• UDM dll or .py name, dll or .py location, version etc

• Option tab:

• may have options if any