Struct FlatPatch 

pub struct FlatPatch { /* private fields */ }

The box around curves drawn in a plane, as a bilinear patch of it: a plane point (x, y) lies at origin + x e1 + y e2, and the patch is parametrized over [0, 1]² along (x, y) — or along (y, x) if swapped, whichever makes its loops wind the way a face’s must.

The box encloses every curve: a NURBS curve stays within the convex hull of its control points, and the box is the outer bounds of their enclosures. A curve drawn in the plane is mapped into the patch’s parameters by an affine map of its control points (FlatPatch::pcurve), exact for any NURBS.

Implementations

impl FlatPatch

pub fn around<'a>( origin: Vector3, e1: Vector3, e2: Vector3, curves: impl IntoIterator<Item = &'a NurbCurve2D>, swapped: bool, ) -> GeopResult<Self>

The patch of the plane (origin, e1, e2) around curves, given in its coordinates.

pub fn past(&self, [low, high]: [Vector2; 2]) -> Self

The patch grown to reach past [low, high], a box in the plane’s coordinates, on every side by its own larger size.

The box’s sides pass through the curves’ extreme points, and a line of another body lying in the plane through such a point, along the box’s side, runs along the patch’s boundary to within rounding: where the two enclosures miss each other by less than their widths, no search can tell that apart from an overlap. Where the patch ends is a free choice. Past the extent of everything that could lie in the plane, nothing lies along its sides, whatever the dimensions.

pub fn reach(&self) -> [Vector2; 2]

How far the patch reaches along the plane’s two axes: its lowest corner and its highest, in the plane’s coordinates.

pub fn pcurve(&self, curve: &NurbCurve2D) -> GeopResult<NurbCurve2D>

curve, drawn in the plane, in the patch’s parameters.

pub fn surface(&self) -> GeopResult<NurbSurface3D>

The patch itself.

Trait Implementations

impl Clone for FlatPatch

fn clone(&self) -> FlatPatch

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FlatPatch

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

Formats the value using the given formatter.