From b82849feb949bcf6f1761e9705245798909dbe72 Mon Sep 17 00:00:00 2001
From: Hanno Braun <hanno@braun-odw.eu>
Date: Wed, 9 Feb 2022 15:21:39 +0100
Subject: [PATCH] WIP Add `Edge::sweep_vertex`

---
 src/kernel/topology/edges.rs | 27 +++++++++++++++++++++++++--
 1 file changed, 25 insertions(+), 2 deletions(-)

diff --git a/src/kernel/topology/edges.rs b/src/kernel/topology/edges.rs
index 8238e9c02..d0bd6c2d7 100644
--- a/src/kernel/topology/edges.rs
+++ b/src/kernel/topology/edges.rs
@@ -2,8 +2,8 @@ use nalgebra::vector;
 use parry3d_f64::math::Isometry;
 
 use crate::{
-    kernel::geometry::{Circle, Curve},
-    math::Point,
+    kernel::geometry::{Circle, Curve, Line},
+    math::{Point, Vector},
 };
 
 use super::vertices::Vertex;
@@ -131,6 +131,29 @@ impl Edge {
         }
     }
 
+    /// Construct an edge by sweeping a vertex
+    ///
+    /// Only sweeps along the positive direction of the z axis are supported.
+    ///
+    /// You must not use this method to create multiple instances of `Edge` that
+    /// refer to the same edge.
+    ///
+    /// TASK: Complete this doc comment. Look at `Vertex::create_at` for more
+    ///       info.
+    // TASK: Un-suppress warning.
+    #[allow(unused)]
+    pub fn sweep_vertex(vertex: Vertex<3>, path: Vector<1>) -> Self {
+        let line = Line {
+            origin: *vertex.location(),
+            direction: vector![0., 0., path.x],
+        };
+
+        let a = vertex;
+        let b = Vertex::create_at(line.origin + line.direction);
+
+        Self::new(Curve::Line(line), Some([a, b]))
+    }
+
     /// Create an arc
     ///
     /// So far, the name of this method is a bit ambitious, as only full circles