API Reference > imodeljs-frontend > Rendering > GraphicBuilder > addArc2d addArc2d MethodAbstract Appends a 2d open arc or closed ellipse to the builder. addArc2d(ellipse: Arc3d, isEllipse: boolean, filled: boolean, zDepth: number): void Parameter Type Description ellipse Arc3d isEllipse boolean If true, and if the arc defines a full sweep, then draw as a closed ellipse instead of an arc. filled boolean If true, and isEllipse is also true, then draw ellipse filled. zDepth number Z value in local coordinates to use for each point in the arc or ellipse. Returns - void Defined in core/frontend/src/render/GraphicBuilder.ts Line 370 Last Updated: 11 June, 2024