Make type of edge vertices more specific

src/kernel/topology/edges.rs

@@ -1,4 +1,4 @@
-use nalgebra::vector;
+use nalgebra::{point, vector};
 use parry2d_f64::shape::Segment as Segment2;
 use parry3d_f64::{math::Isometry, shape::Segment as Segment3};
 
@@ -184,7 +184,7 @@ pub struct Edge {
     ///
     /// If there are no such vertices, that means the edge is connected to
     /// itself (like a full circle, for example).
-    pub vertices: Option<[f64; 2]>,
+    pub vertices: Option<[Point<1>; 2]>,
 
     /// Indicates whether the curve's direction is reversed
     pub reverse: bool,
@@ -213,7 +213,7 @@ impl Edge {
                 origin: start,
                 dir: end - start,
             }),
-            vertices: Some([0., 1.]),
+            vertices: Some([point![0.], point![1.]]),
             reverse: false,
         }
     }