API Reference > imodeljs-backend > iModels > ExportPartGraphicsOptions ExportPartGraphicsOptions Interface Parameters for IModelDb.exportPartGraphics Properties Name Type Description angleTol undefined | number Max angle difference in approximated face, see StrokeOptions chordTol undefined | number Max distance from a face to the original geometry, see StrokeOptions displayProps ExportPartDisplayInfo The base display properties to use for generating the graphics. elementId Id64String The ID for the source GeometryPart maxEdgeLength undefined | number Max length of any edge in generated faces, see StrokeOptions minBRepFeatureSize undefined | number BRep features with bounding boxes smaller than this size will not generate graphics. onPartGraphics ExportPartFunction A function to call for each unique color and texture combination. onPartLineGraphics undefined | ExportPartLinesFunction An optional function to call if line graphics are desired. Defined in core/backend/src/ExportGraphics.ts Line 213 Last Updated: 13 June, 2024