usesuper::Scalar;/// 1-dimensional curve coordinates
#[repr(C)]pubstructT{/// The single coordinate of the 1-dimensional curve coordinates
pubt: Scalar,
}/// 2-dimensional surface coordinates
#[repr(C)]pubstructUv{/// The first coordinate of the 2-dimensional surface coordinates
pubu: Scalar,
/// The second coordinate of the 2-dimensional surface coordinates
pubv: Scalar,
}/// 3-dimensional model coordinates
#[repr(C)]pubstructXyz{/// The first coordinate of the 3-dimensional model coordinates
pubx: Scalar,
/// The second coordinate of the 3-dimensional model coordinates
puby: Scalar,
/// The third coordinate of the 3-dimensional model coordinates
pubz: Scalar,
}