plexus 0.0.10

3D mesh generation and manipulation.
Documentation 
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use geometry::convert::{FromGeometry, FromInteriorGeometry, IntoGeometry};
use geometry::{Attribute, Geometry};
use graph::storage::{EdgeKey, FaceKey, OpaqueKey, VertexKey};

pub trait Topological {
    type Key: OpaqueKey;
    type Attribute: Attribute;
}

// TODO: derivative panics on `pub(in graph)`, so this type uses `pub(super)`.
#[derivative(Debug, Hash)]
#[derive(Clone, Derivative)]
pub struct Vertex<G>
where
    G: Geometry,
{
    #[derivative(Debug = "ignore", Hash = "ignore")]
    pub geometry: G::Vertex,
    pub(super) edge: Option<EdgeKey>,
}

impl<G> Vertex<G>
where
    G: Geometry,
{
    pub(in graph) fn new(geometry: G::Vertex) -> Self {
        Vertex {
            geometry,
            edge: None,
        }
    }
}

impl<G, H> FromInteriorGeometry<Vertex<H>> for Vertex<G>
where
    G: Geometry,
    G::Vertex: FromGeometry<H::Vertex>,
    H: Geometry,
{
    fn from_interior_geometry(vertex: Vertex<H>) -> Self {
        Vertex {
            geometry: vertex.geometry.into_geometry(),
            edge: vertex.edge,
        }
    }
}

impl<G> Topological for Vertex<G>
where
    G: Geometry,
{
    type Key = VertexKey;
    type Attribute = G::Vertex;
}

// TODO: derivative panics on `pub(in graph)`, so this type uses `pub(super)`.
#[derivative(Debug, Hash)]
#[derive(Clone, Derivative)]
pub struct Edge<G>
where
    G: Geometry,
{
    #[derivative(Debug = "ignore", Hash = "ignore")]
    pub geometry: G::Edge,
    pub(super) vertex: VertexKey,
    pub(super) opposite: Option<EdgeKey>,
    pub(super) next: Option<EdgeKey>,
    pub(super) previous: Option<EdgeKey>,
    pub(super) face: Option<FaceKey>,
}

impl<G> Edge<G>
where
    G: Geometry,
{
    pub(in graph) fn new(vertex: VertexKey, geometry: G::Edge) -> Self {
        Edge {
            geometry,
            vertex,
            opposite: None,
            next: None,
            previous: None,
            face: None,
        }
    }
}

impl<G, H> FromInteriorGeometry<Edge<H>> for Edge<G>
where
    G: Geometry,
    G::Edge: FromGeometry<H::Edge>,
    H: Geometry,
{
    fn from_interior_geometry(edge: Edge<H>) -> Self {
        Edge {
            geometry: edge.geometry.into_geometry(),
            vertex: edge.vertex,
            opposite: edge.opposite,
            next: edge.next,
            previous: edge.previous,
            face: edge.face,
        }
    }
}

impl<G> Topological for Edge<G>
where
    G: Geometry,
{
    type Key = EdgeKey;
    type Attribute = G::Edge;
}

// TODO: derivative panics on `pub(in graph)`, so this type uses `pub(super)`.
#[derivative(Debug, Hash)]
#[derive(Clone, Derivative)]
pub struct Face<G>
where
    G: Geometry,
{
    #[derivative(Debug = "ignore", Hash = "ignore")]
    pub geometry: G::Face,
    pub(super) edge: EdgeKey,
}

impl<G> Face<G>
where
    G: Geometry,
{
    pub(in graph) fn new(edge: EdgeKey, geometry: G::Face) -> Self {
        Face { geometry, edge }
    }
}

impl<G, H> FromInteriorGeometry<Face<H>> for Face<G>
where
    G: Geometry,
    G::Face: FromGeometry<H::Face>,
    H: Geometry,
{
    fn from_interior_geometry(face: Face<H>) -> Self {
        Face {
            geometry: face.geometry.into_geometry(),
            edge: face.edge,
        }
    }
}

impl<G> Topological for Face<G>
where
    G: Geometry,
{
    type Key = FaceKey;
    type Attribute = G::Face;
}