API Reference > geometry-core > Serialization > IModelJson > IModelJson.AxesProps > zxVectors zxVectors zxVectors: undefined | [XYZProps, XYZProps] Cartesian coordinate directions defined by X direction then Y direction. The right side contains two vectors in an array. The first vector gives the z axis direction This is normalized to unit length. The second vector gives the positive x direction in the zx plane. This vector is adjusted to be unit length and perpendicular to the z direction. Defined in core/geometry/src/serialization/IModelJsonSchema.ts Line 205 Last Updated: 13 June, 2024