API Reference > geometry-core > Polyface > IndexedPolyface > addParamUV addParamUV Method Add a uv parameter to the parameter array. addParamUV(u: number, v: number, priorIndexA?: number, priorIndexB?: number): number Parameter Type Description u number v number priorIndexA number first index to check for possible duplicate value. priorIndexB number second index to check for possible duplicate value. Returns - number 0-based index of the added or reused param. Defined in core/geometry/src/polyface/Polyface.ts Line 340 Last Updated: 13 June, 2024