API Reference > geometry-core > Numerics > Matrix4d > fromJSON fromJSON MethodStatic Create from nested array json e.g. [[1,2,3,4],[0,1,2,4],[0,2,5,1],[0,0,1,2]] fromJSON(json?: Matrix4dProps): Matrix4d Parameter Type Description json Matrix4dProps Returns - Matrix4d Defined in geometry4d/Matrix4d.ts Line 261 Last Updated: 12 June, 2024