Hide some details from the zoomed view in the LTN tool: driveways, crossings, stop signs. Most are flat-out incorrect, especially in the UK.

apps/ltn/src/lib.rs

@@ -57,6 +57,14 @@ struct Args {
 fn run(mut settings: Settings) {
     let mut opts = map_gui::options::Options::load_or_default();
     opts.color_scheme = map_gui::colors::ColorSchemeChoice::LTN;
+    opts.show_building_driveways = false;
+    // TODO Ideally we would have a better map model in the first place. The next best thing would
+    // be to change these settings based on the map's country, but that's a bit tricky to do early
+    // enough (before map_switched). So for now, assume primary use of this tool is in the UK,
+    // where these settings are most appropriate.
+    opts.show_stop_signs = false;
+    opts.show_crosswalks = false;
+
     let args = Args::from_iter(abstutil::cli_args());
     args.app_args.override_options(&mut opts);
 

map_gui/src/options.rs

@@ -34,6 +34,10 @@ pub struct Options {
     pub camera_angle: CameraAngle,
     /// Draw building driveways.
     pub show_building_driveways: bool,
+    /// Draw stop signs.
+    pub show_stop_signs: bool,
+    /// Draw crosswalks and unmarked crossings.
+    pub show_crosswalks: bool,
 
     /// When making a screen recording, enable this option to hide some UI elements
     pub minimal_controls: bool,
@@ -79,6 +83,8 @@ impl Options {
             toggle_day_night_colors: false,
             camera_angle: CameraAngle::TopDown,
             show_building_driveways: true,
+            show_stop_signs: true,
+            show_crosswalks: true,
 
             time_increment: Duration::minutes(10),
             dont_draw_time_warp: false,

map_gui/src/render/intersection.rs

@@ -55,6 +55,9 @@ impl DrawIntersection {
         }
 
         for turn in &i.turns {
+            if !app.opts().show_crosswalks {
+                break;
+            }
             if turn.turn_type.pedestrian_crossing() {
                 make_crosswalk(&mut default_geom, turn, map, app.cs());
             }
@@ -76,6 +79,9 @@ impl DrawIntersection {
             }
             IntersectionType::StopSign => {
                 for ss in map.get_stop_sign(i.id).roads.values() {
+                    if !app.opts().show_stop_signs {
+                        break;
+                    }
                     if ss.must_stop {
                         if let Some((octagon, pole, angle)) =
                             DrawIntersection::stop_sign_geom(ss, map)