API Reference > imodeljs-frontend > Rendering > ParticleCollectionBuilderParams > isViewCoords isViewCoords isViewCoords: undefined | boolean If true, the finished graphic will be defined in view coordinates, for use as a decoration of type GraphicType.ViewBackground or GraphicType.ViewOverlay. Defaults to false, indicating the graphic will be defined in world coordinates. see CoordSystem.View and CoordSystem.World. Defined in core/frontend/src/render/ParticleCollectionBuilder.ts Line 54 Last Updated: 12 June, 2024