API Reference > imodeljs-common > Tile > DynamicGraphicsRequestProps > modelId modelId Readonly modelId: undefined | string If specified, tools will recognize the generated graphics as being associated with this model. It should identify a 3d model for 3d geometry or a 2d model for 2d geometry. It needn't identify a persistent model - it can be a transient Id. Defined in core/common/src/tile/ElementGraphics.ts Line 94 Last Updated: 12 June, 2024