d3_geo_voronoi_rs 0.1.2

use std::fmt::Debug;
use std::fmt::Display;
use std::ops::AddAssign;

use approx::AbsDiffEq;
use float_next_after::NextAfter;
use geo::line_string;
use geo::CoordFloat;
use geo::Geometry;
use geo::HasKernel;
use geo::MultiLineString;
use num_traits::AsPrimitive;
use num_traits::Bounded;
use num_traits::FloatConst;
use num_traits::FromPrimitive;
use num_traits::Signed;

use d3_geo_rs::clip::circle::ClipCircleC;
use d3_geo_rs::clip::circle::ClipCircleU;
use d3_geo_rs::projection::builder::template::NoPCNU;
use d3_geo_rs::projection::builder::template::ResampleNoPCNC;
use d3_geo_rs::projection::builder::template::ResampleNoPCNU;
use d3_geo_rs::projection::stereographic::Stereographic;
use d3_geo_rs::stream::Stream;

use super::Voronoi;

impl<'a, DRAIN, T>
    Voronoi<
        'a,
        ClipCircleC<ResampleNoPCNC<DRAIN, Stereographic<DRAIN, T>, T>, T>,
        ClipCircleU<ResampleNoPCNC<DRAIN, Stereographic<DRAIN, T>, T>, T>,
        DRAIN,
        NoPCNU,
        Stereographic<DRAIN, T>,
        ResampleNoPCNC<DRAIN, Stereographic<DRAIN, T>, T>,
        ResampleNoPCNU<Stereographic<DRAIN, T>, T>,
        T,
    >
where
    DRAIN: Clone + Debug + Stream<EP = DRAIN, T = T> + Default,
    T: AbsDiffEq<Epsilon = T>
        + AddAssign
        + AsPrimitive<T>
        + Bounded
        + CoordFloat
        + Display
        + Default
        + FloatConst
        + FromPrimitive
        + HasKernel
        + Signed
        + NextAfter,
{
    /// Returns the mesh in the form of a mutliline string.
    pub fn mesh(mut self, data: Option<Geometry<T>>) -> Option<MultiLineString<T>> {
        if let Some(data) = data {
            match Self::new(Some(data)) {
                Ok(s) => self = s,
                Err(_) => return None,
            }
        }

        self.delaunay.as_ref().map(|delaunay_return| {
            delaunay_return
                .edges
                .iter()
                .map(|e| line_string![(self.points)[e[0]], (self.points)[e[1]]])
                .collect()
        })
    }
}