Version 2025 R1

The 2025 R1 version of the Discovery APIs contains the following changes and additions:

Custom tree

Dynamic Tree Group Hierarchy Generation: APIs for creating custom tree hierarchies can now be invoked by the add-in at any time, enabling dynamic creation and deletion of groups and subgroups.
Custom Object Parenting: Previously, only custom objects parented to the root part were shown in the custom tree. Now, custom objects can also be parented to components. When a component is exported, its associated custom objects are also exported.
Tree Handlers for Groups: Handlers (buttons to control visibility or other add-in-defined actions) were previously available only for custom objects. These handlers are now also supported for groups.
Custom Tree Hints: New functionality allows you to define hints for objects within the custom tree. Flyout Feature: The Try Flyout functionality, previously available only for PhysicsWrapper, is now supported for DiscoveryWrapper custom objects.

Custom Material Properties
- You can define custom properties for any material provided by Discovery.
- Custom material properties can be grouped under a custom label (one group per material).
- Add-ins can provide default values and receive callbacks when property values are changed, creating a project material.
- Custom properties are included when a material is exported to a custom library. However, they cannot be edited when used from the custom library.
Geometrical Entity as Location Properties: Through the API, you can assign geometrical entities (faces, edges, curves) as location properties for material assignments.

Custom Tab Placement: Add-in-provided tabs can now be placed at various locations in the ribbon, including before the default Discovery tabs.
Default Tabs for Stages: Add-in-provided tabs can now be marked as default tabs for specific stages.

Deprecated API Version: API version V22 is now deprecated and will be removed in the next Discovery release.
Namespace Renaming: Application events related to the Context Menu and File Menu have moved to V251.UserInterface.dll. The namespace has changed from Ansys.Discovery.Api.V251.Customization.Menu to Ansys.Discovery.Api.V251.Menu.