egui,router: add option to toggle squeezing

locales/en-US/main.ftl

@@ -18,6 +18,7 @@ action-undo = Undo
 action-redo = Redo
 
 presort-by-pairwise-detours = Presort by pairwise detours
+squeeze-under-bands = Squeeze under bands
 wrap-around-bands = Wrap around bands
 
 show-ratsnest = Show Ratsnest

src/autorouter/autorouter.rs

@@ -31,15 +31,6 @@ pub struct AutorouterOptions {
     pub router_options: RouterOptions,
 }
 
-impl AutorouterOptions {
-    pub fn new() -> Self {
-        Self {
-            presort_by_pairwise_detours: false,
-            router_options: RouterOptions::new(),
-        }
-    }
-}
-
 #[derive(Error, Debug, Clone)]
 pub enum AutorouterError {
     #[error("nothing to route")]

src/bin/topola-egui/top.rs

@@ -9,6 +9,7 @@ use topola::{
         invoker::{Command, Execute, ExecuteWithStatus, Invoker, InvokerError, InvokerStatus},
         AutorouterOptions,
     },
+    router::RouterOptions,
     specctra::{design::SpecctraDesign, mesadata::SpecctraMesadata},
 };
 
@@ -32,7 +33,13 @@ pub struct Top {
 impl Top {
     pub fn new() -> Self {
         Self {
-            autorouter_options: AutorouterOptions::new(),
+            autorouter_options: AutorouterOptions {
+                presort_by_pairwise_detours: false,
+                router_options: RouterOptions {
+                    wrap_around_bands: true,
+                    squeeze_under_bands: true,
+                },
+            },
             is_placing_via: false,
             show_ratsnest: false,
             show_navmesh: false,
@@ -142,6 +149,10 @@ impl Top {
                             &mut self.autorouter_options.presort_by_pairwise_detours,
                             tr.text("presort-by-pairwise-detours"),
                         );
+                        ui.checkbox(
+                            &mut self.autorouter_options.router_options.squeeze_under_bands,
+                            tr.text("squeeze-under-bands"),
+                        );
                         ui.checkbox(
                             &mut self.autorouter_options.router_options.wrap_around_bands,
                             tr.text("wrap-around-bands"),

src/router/navmesh.rs

@@ -202,26 +202,50 @@ impl Navmesh {
                 map.insert(trianvertex, vec![(navvertex, navvertex)]);
             } else {
                 map.insert(trianvertex, vec![]);
-                Self::add_node_to_graph_and_map_as_binavvertex(
-                    &mut graph,
-                    &mut map,
-                    trianvertex,
-                    trianvertex.into(),
-                );
 
-                if options.wrap_around_bands {
-                    let mut gear =
-                        Into::<GearIndex>::into(Into::<BinavvertexNodeIndex>::into(trianvertex));
+                let mut gear =
+                    Into::<GearIndex>::into(Into::<BinavvertexNodeIndex>::into(trianvertex));
 
-                    while let Some(bend) = gear.ref_(layout.drawing()).next_gear() {
-                        Self::add_node_to_graph_and_map_as_binavvertex(
-                            &mut graph,
-                            &mut map,
-                            trianvertex,
-                            bend.into(),
-                        );
+                if options.squeeze_under_bands {
+                    Self::add_node_to_graph_and_map_as_binavvertex(
+                        &mut graph,
+                        &mut map,
+                        trianvertex,
+                        trianvertex.into(),
+                    );
+
+                    if options.wrap_around_bands {
+                        while let Some(bend) = gear.ref_(layout.drawing()).next_gear() {
+                            Self::add_node_to_graph_and_map_as_binavvertex(
+                                &mut graph,
+                                &mut map,
+                                trianvertex,
+                                bend.into(),
+                            );
+                            gear = bend.into();
+                        }
+                    }
+                } else if let Some(first_bend) = gear.ref_(layout.drawing()).next_gear() {
+                    let mut bend = first_bend;
+
+                    while let Some(next_bend) = gear.ref_(layout.drawing()).next_gear() {
+                        bend = next_bend;
                         gear = bend.into();
                     }
+
+                    Self::add_node_to_graph_and_map_as_binavvertex(
+                        &mut graph,
+                        &mut map,
+                        trianvertex,
+                        bend.into(),
+                    );
+                } else {
+                    Self::add_node_to_graph_and_map_as_binavvertex(
+                        &mut graph,
+                        &mut map,
+                        trianvertex,
+                        trianvertex.into(),
+                    );
                 }
             };
         }

src/router/router.rs

@@ -36,15 +36,7 @@ use super::{
 #[derive(Debug, Clone, Copy, Serialize, Deserialize)]
 pub struct RouterOptions {
     pub wrap_around_bands: bool,
-    //pub squeeze_under_bands: bool,
-}
-
-impl RouterOptions {
-    pub fn new() -> Self {
-        Self {
-            wrap_around_bands: true,
-        }
-    }
+    pub squeeze_under_bands: bool,
 }
 
 #[derive(Error, Debug, Clone)]