API Reference > geometry-core > Polyface > ClippedPolyfaceBuilders ClippedPolyfaceBuilders Class A pair of PolyfaceBuilder objects, for use by clippers that emit inside and outside parts. There are nominally 4 builders: builderA collects simple "inside" clip. builderB collects simple "outside" clip. builderA1 collects "side" clip for inside. builderB1 collets "side" clip for outside. static ClippedPolyfaceBuilders.create(keepInside, keepOutside) initializes builderA and builderB (each optionally to undefined), with undefined builderA1 and builderB1 builders.enableSideBuilders() makes builderA1 and builderB1 match builderA and builderB. construction methods aim their facets at appropriate builders if defined. @public Methods Name Description claimPolyface(selector: | "1", fixup: boolean): undefined | IndexedPolyface create(keepInside: boolean = true, keepOutside: boolean = false, buildSideFaces: boolean = false): ClippedPolyfaceBuilders Static Simple create with default options on builder. Properties Name Type Description buildClosureFaces undefined | boolean request to construct cut faces builderA undefined | PolyfaceBuilder An available builder. builderB undefined | PolyfaceBuilder An available builder. Defined in polyface/PolyfaceClip.ts Line 55 Last Updated: 11 June, 2024