API Reference > imodeljs-common > Geometry > GeometryStreamBuilder GeometryStreamBuilder Class GeometryStreamBuilder is a helper class for populating the GeometryStreamProps array needed to create a GeometricElement or GeometryPart. Methods Name Description constructor(): GeometryStreamBuilder appendBRepData(brep: BRepEntity.DataProps): boolean Append BRepEntity.DataProps supplied in either local or world coordinates to the GeometryStreamProps array Beta appendGeometry(geometry: GeometryQuery): boolean Append a GeometryQuery supplied in either local or world coordinates to the GeometryStreamProps array appendGeometryParamsChange(geomParams: GeometryParams): boolean Change GeometryParams for subsequent geometry. appendGeometryPart2d(partId: string, instanceOrigin?: Point2d, instanceRotation?: Angle, instanceScale?: number): boolean Append a GeometryPart instance with relative position, orientation, and scale to a GeometryStreamProps array for creating a GeometricElement2d. appendGeometryPart3d(partId: string, instanceOrigin?: Point3d, instanceRotation?: YawPitchRollAngles, instanceScale?: number): boolean Append a GeometryPart instance with relative position, orientation, and scale to a GeometryStreamProps array for creating a GeometricElement3d. appendGeometryRanges(): void Store local ranges in GeometryStream for all subsequent geometry appended. appendImage(image: ImageGraphic): boolean Append an ImageGraphic supplied in either local or world coordinates. appendSubCategoryChange(subCategoryId: string): boolean Change SubCategory or reset to SubCategoryAppearance for subsequent geometry. appendTextString(textString: TextString): boolean Append a TextString supplied in either local or world coordinates to the GeometryStreamProps array setLocalToWorld(localToWorld?: Transform): void Supply optional local to world transform. setLocalToWorld2d(origin: Point2d, angle: Angle = ...): void Supply local to world transform from a Point2d and optional Angle. setLocalToWorld3d(origin: Point3d, angles: YawPitchRollAngles = ...): void Supply local to world transform from a Point3d and optional YawPitchRollAngles. setLocalToWorldFromPlacement(props: PlacementProps): void Supply local to world transform from a PlacementProps2d or PlacementProps3d. Properties Name Type Description geometryStream Readonly GeometryStreamProps GeometryStream entries isViewIndependent Accessor boolean Controls whether or not the geometry in the stream should be displayed as view-independent. Defined in core/common/src/geometry/GeometryStream.ts Line 183 Last Updated: 12 June, 2024