shape_core/elements/polygons/
dim3.rs

1use super::*;
2
3impl<T> Polygon3D<T> {
4    pub fn new(points: &[Point3D<T>]) -> Self
5    where
6        T: Clone,
7    {
8        Self { vertex: points.to_vec() }
9    }
10    pub fn edges(&self) -> impl Iterator<Item = Line3D<&T>> {
11        debug_assert!(self.vertex.len() >= 3, "Polygon must have at least three points");
12        self.vertex
13            .iter()
14            .cycle()
15            .take(self.vertex.len() + 1)
16            .tuple_windows()
17            .map(|(a, b)| Line3D { s: a.ref_inner(), e: b.ref_inner() })
18    }
19    /// Get the center of the polygon
20    pub fn center(&self) -> Point3D<T>
21    where
22        T: Zero + One + Clone + AddAssign + Div<Output = T>,
23    {
24        let mut n = T::zero();
25        let mut x = T::zero();
26        let mut y = T::zero();
27        let mut z = T::zero();
28        for p in self.vertex.iter() {
29            x.add_assign(p.x.clone());
30            y.add_assign(p.y.clone());
31            z.add_assign(p.z.clone());
32            n.add_assign(T::one());
33        }
34        Point3D { x: x / n.clone(), y: y / n.clone(), z: z / n.clone() }
35    }
36}
shape_core/elements/polygons/dim3.rs

shape_core/elements/polygons/
dim3.rs
