diff --git a/topola-egui/src/display.rs b/topola-egui/src/display.rs
index 65cbb62..a023aaf 100644
--- a/topola-egui/src/display.rs
+++ b/topola-egui/src/display.rs
@@ -3,7 +3,10 @@
 // SPDX-License-Identifier: MIT OR Apache-2.0
 
 use crate::{viewport::Viewport, workspace::Workspace};
-use topola::{Joint, JointId, Polygon, PolygonId, Segment, SegmentId, Vector2};
+use topola::{
+    Joint, JointId, PinSelection, Polygon, PolygonId, PrimitiveId, Ratline, Segment, SegmentId,
+    Vector2,
+};
 
 pub struct Display {}
 
@@ -23,7 +26,7 @@ impl Display {
         self.display_layout(ctx, ui, /*menu_bar,*/ viewport, workspace);
         self.display_bboxes(ctx, ui, viewport, workspace);
         self.display_navmeshes(ctx, ui, viewport, workspace);
-        //self.display_ratsnest(ctx, ui, viewport, workspace);
+        self.display_ratsnest(ctx, ui, viewport, workspace);
     }
 
     fn display_layout(
@@ -317,11 +320,31 @@ impl Display {
     }
 
     fn display_ratsnest(
-        ctx: &egui::Context,
+        &mut self,
+        _ctx: &egui::Context,
         ui: &egui::Ui,
-        viewport: &Viewport,
+        _viewport: &Viewport,
         workspace: &Workspace,
     ) {
-        //
+        for ratline in workspace.autorouter.ratsnest().ratlines() {
+            let layers = *ratline.endpoint_layers();
+            let endpoints = *ratline.endpoints();
+
+            if !workspace.appearance_panel.visible[layers[0]]
+                || !workspace.appearance_panel.visible[layers[1]]
+            {
+                continue;
+            }
+
+            //let stroke_width = 2.0 / viewport.scale_factor().max(1e-6);
+
+            ui.painter().line_segment(
+                [
+                    egui::pos2(endpoints[0].x as f32, endpoints[0].y as f32),
+                    egui::pos2(endpoints[1].x as f32, endpoints[1].y as f32),
+                ],
+                egui::Stroke::new(10.0, egui::Color32::BLUE),
+            );
+        }
     }
 }
diff --git a/topola/src/autorouter.rs b/topola/src/autorouter.rs
index 059bf33..495373c 100644
--- a/topola/src/autorouter.rs
+++ b/topola/src/autorouter.rs
@@ -6,13 +6,14 @@ use derive_getters::Getters;
 use undoredo::Recorder;
 
 use crate::{
-    Board, Joint, JointId, Polygon, PolygonId, Segment, SegmentId, Vector2, Via, ViaId,
+    Board, Joint, JointId, Polygon, PolygonId, Ratsnest, Segment, SegmentId, Vector2, Via, ViaId,
     navmesher::{MultiObstacleId, Navmesher},
 };
 
 #[derive(Clone, Debug, Getters)]
 pub struct Autorouter {
     navmesher: Navmesher,
+    ratsnest: Ratsnest,
     board: Board,
 
     joint_multiobstacles: Recorder<Vec<MultiObstacleId>>,
@@ -31,6 +32,7 @@ impl Autorouter {
                     .map(|p| Vector2::new(p[0], p[1])),
                 *board.layout().layer_count(),
             ),
+            ratsnest: Ratsnest::new(&board),
             board,
 
             joint_multiobstacles: Recorder::new(Vec::new()),