API Reference > geometry-core > CartesianGeometry > Matrix3d > toJSON toJSON Method Return a json object containing the 9 numeric entries as a single array in row major order, [ [1, 2, 3],[ 4, 5, 6], [7, 8, 9] ] toJSON(): Matrix3dProps Returns - Matrix3dProps Defined in geometry3d/Matrix3d.ts Line 245 Last Updated: 11 June, 2024