Struct Neighbour 

pub struct Neighbour<'a> { /* private fields */ }

A face a patch is made tangent to along one of its sides (see NurbSurface3D::tangent_to, NurbSurface3D::fill): the surface the side lies on, and which side of it the face is on.

Implementations

impl<'a> Neighbour<'a>

pub fn new(surface: &'a NurbSurface3D, along: bool) -> GeopResult<Self>

The face on surface along a side of a patch, the side lying on the surface: running the side the way the patch runs round it (along) — the face then lies to the right of the side, seen from its normal — or the other way.

pub fn joined(surface: &'a NurbSurface3D, along: bool) -> GeopResult<Self>

The face on surface along a side of a patch as Neighbour::new says, joined to the patch along that side in one body that the kernel builds: both are its own, and no boolean ever has to tell which side of the face the patch leaves it on. So the patch is made tangent to it untilted, at its abscissae along the side, and that is not proven between them: no TILT is needed where no approximate tangency can dip through anything.

Trait Implementations

impl<'a> Clone for Neighbour<'a>

fn clone(&self) -> Neighbour<'a>

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a> Debug for Neighbour<'a>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.