Struct wavefront::Polygon

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

A polygon defined in an OBJ.

Implementations

impl<'a> Polygon<'a>

pub fn vertex(&self, index: usize) -> Option<Vertex<'a>>

Returns a specific Vertex by index.

pub fn vertices(&self) -> impl ExactSizeIterator<Item = Vertex<'a>> + Clone + 'a

Returns an iterator over the Vertexs in this Polygon.

pub fn triangles(
    &self
) -> impl ExactSizeIterator<Item = [Vertex<'a>; 3]> + Clone + 'a

Returns an iterator over triangles in this Polygon by splitting up the polygon into smaller pieces.

This function is useful when your application supports only triangles as input but the OBJ contains unusual polygons such as quads.

The triangles produced will be arranged in a fan and will follow the winding order of the original polygon.

This function assumes that:

• The polygon is concave
• The vertices of the polygon all lie in the same plane

Trait Implementations

impl<'a> Clone for Polygon<'a>

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

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for Polygon<'a>

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

Formats the value using the given formatter.

impl<'a> Copy for Polygon<'a>