feat: major progress

.metadata

@@ -0,0 +1,30 @@
+# This file tracks properties of this Flutter project.
+# Used by Flutter tool to assess capabilities and perform upgrades etc.
+#
+# This file should be version controlled and should not be manually edited.
+
+version:
+  revision: "54e66469a933b60ddf175f858f82eaeb97e48c8d"
+  channel: "stable"
+
+project_type: app
+
+# Tracks metadata for the flutter migrate command
+migration:
+  platforms:
+    - platform: root
+      create_revision: 54e66469a933b60ddf175f858f82eaeb97e48c8d
+      base_revision: 54e66469a933b60ddf175f858f82eaeb97e48c8d
+    - platform: android
+      create_revision: 54e66469a933b60ddf175f858f82eaeb97e48c8d
+      base_revision: 54e66469a933b60ddf175f858f82eaeb97e48c8d
+
+  # User provided section
+
+  # List of Local paths (relative to this file) that should be
+  # ignored by the migrate tool.
+  #
+  # Files that are not part of the templates will be ignored by default.
+  unmanaged_files:
+    - 'lib/main.dart'
+    - 'ios/Runner.xcodeproj/project.pbxproj'

README.md

@@ -1,16 +1,8 @@
 # uninav
 
-A new Flutter project.
+App to navigate in Universities. Developed at Uni Ulm, but made to be adaptable for all other universities, or complex indoor navigation environments
 
-## Getting Started
+## Building and such 
 
-This project is a starting point for a Flutter application.
+run `flutter run` for running the app on your device.
-
+run `dart run build_runner build` to run the code generator
-A few resources to get you started if this is your first Flutter project:
-
-- [Lab: Write your first Flutter app](https://docs.flutter.dev/get-started/codelab)
-- [Cookbook: Useful Flutter samples](https://docs.flutter.dev/cookbook)
-
-For help getting started with Flutter development, view the
-[online documentation](https://docs.flutter.dev/), which offers tutorials,
-samples, guidance on mobile development, and a full API reference.

analysis_options.yaml

@@ -26,3 +26,7 @@ linter:
 
 # Additional information about this file can be found at
 # https://dart.dev/guides/language/analysis-options
+
+analyzer:
+  errors:
+    invalid_annotation_target: ignore

lib/components/drawer.dart

@@ -1,4 +1,7 @@
 import 'package:flutter/material.dart';
+import 'package:get/get_core/src/get_main.dart';
+import 'package:get/get_navigation/get_navigation.dart';
+import 'package:uninav/map.dart';
 
 class MyDrawer extends StatelessWidget {
   @override
@@ -20,9 +23,11 @@ class MyDrawer extends StatelessWidget {
             ),
           ),
           ListTile(
-            leading: Icon(Icons.home),
+            leading: Icon(Icons.map),
-            title: Text('Home'),
+            title: Text('Map Page'),
             onTap: () {
+              Get.back(); // close drawer
+              Get.toNamed('/map');
               // Handle menu item tap
             },
           ),
@@ -30,6 +35,8 @@ class MyDrawer extends StatelessWidget {
             leading: Icon(Icons.settings),
             title: Text('Settings'),
             onTap: () {
+              Get.back(); // close drawer
+              Get.toNamed('/settings');
               // Handle menu item tap
             },
           ),

lib/components/hamburger_menu.dart

@@ -0,0 +1,17 @@
+import 'package:flutter/material.dart';
+
+class HamburgerMenu extends StatelessWidget {
+  const HamburgerMenu({
+    super.key,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    return IconButton(
+      icon: Icon(Icons.menu),
+      onPressed: () {
+        Scaffold.of(context).openDrawer();
+      },
+    );
+  }
+}

lib/components/map_render_level.dart

@@ -0,0 +1,256 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_map/flutter_map.dart';
+import 'package:get/get.dart';
+import 'package:latlong2/latlong.dart';
+import 'package:uninav/controllers/map_controller.dart';
+import 'package:uninav/data/geo/model.dart';
+import 'package:uninav/map.dart';
+import 'package:uninav/util/geomath.dart';
+
+List<Widget> renderLevel(int level) {
+  return <Widget>[
+    LevelLayer(
+        filter: (feature) =>
+            feature.level == level && feature.type is LectureHall,
+        polyConstructor: (feature) => feature
+            .getPolygon(
+              constructor: (pts) => Polygon(
+                points: pts,
+                color: Colors.orange.withOpacity(0.2),
+                borderColor: Colors.orange,
+                isFilled: true,
+                borderStrokeWidth: 1,
+              ),
+            )
+            .unwrap(),
+        markerConstructor: (feature) => Marker(
+              width: 150,
+              height: 60,
+              point: feature.getPoint().unwrap(),
+              builder: (cx) => Center(
+                child: Column(
+                  children: [
+                    Icon(
+                      Icons.class_,
+                      color: Colors.black,
+                    ),
+                    Text('${feature.name}'),
+                  ],
+                ),
+              ),
+            )),
+    LevelLayer(
+      filter: (feature) => feature.level == level && feature.type is Room,
+      polyConstructor: (feature) => feature
+          .getPolygon(
+            constructor: (pts) => Polygon(
+              points: pts,
+              color: Colors.green.withOpacity(0.2),
+              borderColor: Colors.green,
+              isFilled: true,
+              borderStrokeWidth: 1,
+            ),
+          )
+          .unwrap(),
+    ),
+    LevelLayer(
+      filter: (feature) => feature.level == level && feature.type is Door,
+      markerConstructor: (feature) {
+        final point = feature.getPoint().unwrap();
+        return Marker(
+          width: 20,
+          height: 20,
+          point: point,
+          builder: (ctx) => const Icon(
+            Icons.door_front_door,
+            color: Colors.brown,
+          ),
+        );
+      },
+    ),
+    LevelLayer(
+      filter: (feature) => feature.level == level && feature.type is Toilet,
+      markerConstructor: (feature) {
+        final type = (feature.type as Toilet).toilet_type;
+        IconData icon;
+        switch (type.toLowerCase()) {
+          case 'male':
+            icon = Icons.male;
+            break;
+          case 'female':
+            icon = Icons.female;
+            break;
+          case 'handicap':
+            icon = Icons.wheelchair_pickup;
+            break;
+          default:
+            print("WARN: Toilet didn't have recognizable type! "
+                "(Level ${feature.level}, Name ${feature.name}, "
+                "Location: ${feature.getPoint().unwrap()})");
+            icon = Icons.wc;
+            break;
+        }
+
+        final point = feature.getPoint().unwrap();
+        return Marker(
+          width: 20,
+          height: 20,
+          point: point,
+          builder: (ctx) => Icon(
+            icon,
+            color: Colors.purple,
+          ),
+          rotateAlignment: Alignment.center,
+        );
+      },
+    ),
+    LevelLayer(
+      filter: (feature) =>
+          feature.type is Stairs &&
+          (feature.type as Stairs).connects_levels.contains(level),
+      markerConstructor: (feature) {
+        final point = feature.getPoint().unwrap();
+        return Marker(
+          width: 20,
+          height: 20,
+          point: point,
+          builder: (ctx) => Icon(
+            Icons.stairs_outlined,
+            color: Colors.deepPurple.shade300,
+          ),
+        );
+      },
+    ),
+    LevelLayer(
+      filter: (feature) =>
+          feature.type is Lift &&
+          (feature.type as Lift).connects_levels.contains(level),
+      markerConstructor: (feature) {
+        final point = feature.getPoint().unwrap();
+        return Marker(
+          width: 20,
+          height: 20,
+          point: point,
+          builder: (ctx) => const Icon(
+            Icons.elevator_outlined,
+            color: Colors.deepPurple,
+          ),
+        );
+      },
+    ),
+  ];
+}
+
+class LevelLayer extends StatelessWidget {
+  final bool Function(Feature)? filter;
+  final Polygon Function(Feature)? polyConstructor;
+  final Marker Function(LatLng, String)? polyCenterMarkerConstructor;
+  final Marker Function(Feature)? markerConstructor;
+  final int? level;
+
+  const LevelLayer({
+    this.level,
+    this.filter,
+    this.polyConstructor,
+    this.polyCenterMarkerConstructor,
+    this.markerConstructor,
+    super.key,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    final myMapController = Get.find<MyMapController>();
+
+    return Obx(() {
+      final List<Polygon> filteredPolygons = [];
+      final List<Marker> polygonCenterMarkers = [];
+      final List<Marker> filteredMarkers = [];
+
+      for (final feature in myMapController.features) {
+        if (filter == null || filter!(feature)) {
+          if (feature.isPolygon()) {
+            if (polyConstructor != null) {
+              filteredPolygons.add(polyConstructor!(feature));
+            } else {
+              filteredPolygons.add(feature.getPolygon().unwrap());
+            }
+
+            // calculate polygon center
+            final center =
+                polygonCenterMinmax(feature.getPolygon().unwrap().points);
+            if (polyCenterMarkerConstructor != null) {
+              polygonCenterMarkers
+                  .add(polyCenterMarkerConstructor!(center, feature.name));
+            } else {
+              polygonCenterMarkers.add(Marker(
+                width: 100,
+                height: 100,
+                point: center,
+                builder: (cx) => Center(
+                  child: Text(
+                    feature.name,
+                    style: const TextStyle(
+                      color: Colors.black54,
+                      // backgroundColor: Colors.white,
+                    ),
+                  ),
+                ),
+              ));
+            }
+          } else if (feature.isPoint()) {
+            if (markerConstructor != null) {
+              filteredMarkers.add(markerConstructor!(feature));
+            } else {
+              final point = feature.getPoint().unwrap();
+              filteredMarkers.add(Marker(
+                width: 100,
+                height: 100,
+                point: point,
+                builder: (cx) => Center(
+                  child: Text(
+                    feature.name,
+                    style: const TextStyle(
+                      color: Colors.black54,
+                      // backgroundColor: Colors.white,
+                    ),
+                  ),
+                ),
+              ));
+            }
+          }
+        }
+      }
+      // print(filteredPolygons.length);
+      // print(filteredPolygons);
+
+      // print(filteredPolygons[0].points[0]);
+      // print(myMapController.features.length);
+
+      final List<Widget> widgets = [];
+      if (filteredPolygons.isNotEmpty) {
+        if (polyConstructor != null) {
+          widgets.add(PolygonLayer(polygons: filteredPolygons));
+        } else {
+          widgets.add(PolygonLayer(
+              polygons: filteredPolygons
+                  .map((poly) => Polygon(
+                        points: poly.points,
+                        borderColor: Colors.black26,
+                        borderStrokeWidth: 2.0,
+                      ))
+                  .toList()));
+        }
+        widgets.add(MarkerLayer(
+          markers: polygonCenterMarkers,
+          rotate: true,
+        ));
+      }
+
+      if (filteredMarkers.isNotEmpty) {
+        widgets.add(MarkerLayer(markers: filteredMarkers, rotate: true));
+      }
+
+      return Stack(children: widgets);
+    });
+  }
+}

lib/controllers/map_controller.dart

@@ -0,0 +1,67 @@
+import 'dart:convert';
+
+import 'package:anyhow/anyhow.dart';
+import 'package:geojson/geojson.dart';
+import 'package:get/get.dart';
+import 'package:uninav/data/geo/model.dart';
+import 'package:uninav/data/geo/parser.dart';
+
+class MyMapController extends GetxController {
+  // constructor that calls loadgeojson with a default geojson string
+  final RxList<Feature> features = <Feature>[].obs;
+  final currentLevel = 1.obs;
+  final levels = <int>[1].obs;
+  @override
+  onInit() async {
+    print("init");
+    ever(features, refreshLevels);
+    super.onInit();
+  }
+
+  void refreshLevels(List<Feature> curFeatures) {
+    print("refreshLevels");
+    final newLevels = <int>[1];
+    for (final feature in curFeatures) {
+      if (feature.level != null && !newLevels.contains(feature.level)) {
+        newLevels.add(feature.level!);
+      }
+    }
+    newLevels.sort();
+    levels.value = newLevels;
+  }
+
+  Result<void> setLevel(int level) {
+    // check that level is in features
+    if (!levels.contains(level)) {
+      return bail('Level $level is not in features');
+    }
+
+    currentLevel.value = level;
+    return const Ok(());
+  }
+
+  Future<void> loadGeoJson(String geoJsonString) async {
+    try {
+      // print(geoJsonString);
+
+      final featuresList = <Feature>[];
+
+      final geojson = GeoJson();
+
+      await geojson.parse(geoJsonString);
+
+      for (final feature in geojson.features) {
+        print(feature.properties);
+        final parsed =
+            parseFeature(feature.properties ?? <String, dynamic>{}, feature);
+        if (parsed case Ok(:final ok)) {
+          featuresList.add(ok);
+        }
+      }
+
+      features.value = featuresList;
+    } catch (e) {
+      print('Error parsing GeoJSON: $e');
+    }
+  }
+}

lib/data/geo/model.dart

@@ -0,0 +1,70 @@
+import 'package:anyhow/anyhow.dart';
+import 'package:flutter/material.dart';
+import 'package:flutter_map/flutter_map.dart';
+import 'package:freezed_annotation/freezed_annotation.dart';
+import 'package:geojson/geojson.dart';
+import 'package:latlong2/latlong.dart';
+
+part 'model.freezed.dart';
+
+@freezed
+class Feature with _$Feature {
+  const Feature._();
+
+  const factory Feature({
+    required String name,
+    required FeatureType type,
+    String? description,
+    required dynamic geometry,
+    int? level,
+  }) = _Feature;
+
+  bool isPolygon() {
+    return geometry is GeoJsonFeature<GeoJsonPolygon>;
+  }
+
+  bool isPoint() {
+    return geometry is GeoJsonFeature<GeoJsonPoint>;
+  }
+
+  Result<Polygon> getPolygon({Polygon Function(List<LatLng>)? constructor}) {
+    if (isPolygon()) {
+      constructor ??= (pts) => Polygon(
+          points: pts, borderColor: Colors.black26, borderStrokeWidth: 2.0);
+      final polygon = geometry as GeoJsonFeature<GeoJsonPolygon>;
+      // print(polygon.geometry!.geoSeries[0].geoPoints);
+      final points = polygon.geometry!.geoSeries[0].geoPoints
+          .map((e) => LatLng(e.latitude, e.longitude))
+          .toList();
+
+      // print(points);
+      return Ok(constructor(points));
+    } else {
+      return bail("Feature Geometry is not a Polygon");
+    }
+  }
+
+  Result<LatLng> getPoint() {
+    if (isPoint()) {
+      final point = geometry as GeoJsonFeature<GeoJsonPoint>;
+      return Ok(LatLng(point.geometry!.geoPoint.latitude,
+          point.geometry!.geoPoint.longitude));
+    } else {
+      return bail("Feature Geometry is not a Point");
+    }
+  }
+}
+
+@freezed
+class FeatureType with _$FeatureType {
+  // multiple feature types like lecture hall, toliet, ...
+  const factory FeatureType.building() = Building;
+  const factory FeatureType.lectureHall() = LectureHall;
+  const factory FeatureType.room() = Room;
+  const factory FeatureType.door(List<String> connects) = Door;
+  const factory FeatureType.toilet(String toilet_type) = Toilet;
+  const factory FeatureType.stairs(List<int> connects_levels) = Stairs;
+  const factory FeatureType.lift(List<int> connects_levels) = Lift;
+  const factory FeatureType.publicTransport(
+      List<String> bus_lines, List<String> tram_lines) = PublicTransport;
+}

lib/data/geo/parser.dart

@@ -0,0 +1,142 @@
+import 'package:anyhow/anyhow.dart';
+import 'package:geojson/geojson.dart';
+import 'package:uninav/data/geo/model.dart';
+import 'package:yaml/yaml.dart';
+
+Result<Feature> parseFeature(
+    Map<String, dynamic> properties, dynamic geometry) {
+  final name = properties['name'] as String?;
+  final description_yaml = properties['description'] as String? ?? '';
+  final layer = properties['layer'] as String?;
+
+  int? level;
+
+  // check if layer key contains a digit using \d+ regex
+
+  final layerNum = RegExp(r'\d+').firstMatch(layer ?? '');
+  if (layerNum != null) {
+    level = int.parse(layerNum.group(0)!);
+  }
+
+  // try parse yaml
+  if (description_yaml == null) {
+    print("warn: Description key is missing for feature $name");
+  }
+
+  if (layer == null) {
+    return bail("Layer key \'layer\' is missing for feature $name");
+  }
+  dynamic yaml;
+  try {
+    yaml = loadYaml(description_yaml);
+  } on YamlException catch (e) {
+    return bail("Couldn't parse YAML in description for feature $name: $e");
+  }
+
+  yaml = yaml as YamlMap? ?? {};
+  final description = yaml['desription'] as String?;
+
+  print("yaml: $yaml");
+
+  var raw_type = yaml['type'] as String?;
+  if (raw_type == null && layer?.toLowerCase() == 'buildings') {
+    raw_type = 'building';
+  }
+
+  if (raw_type == null) {
+    return bail("Type key \'type\' is missing for feature $name");
+  }
+
+  FeatureType type;
+
+  try {
+    switch (raw_type) {
+      case 'building':
+        type = FeatureType.building();
+      case 'lift':
+        final list = getYamlList<int>(yaml, 'connects_levels')
+            .expect("Couldn't parse 'connects_levels' for feature $name");
+        type = FeatureType.lift(list);
+        break;
+      case 'stairs':
+        final list = getYamlList<int>(yaml, 'connects_levels')
+            .expect("Couldn't parse 'connects_levels' for feature $name");
+        type = FeatureType.stairs(list);
+        break;
+      case 'lecture_hall':
+        type = FeatureType.lectureHall();
+        break;
+      case 'room':
+        type = FeatureType.room();
+        break;
+      case 'door':
+        final list = getYamlList<String>(yaml, 'connects')
+            .expect("Couldn't parse 'connects' for feature $name");
+        type = FeatureType.door(list);
+        break;
+      case 'toilet':
+        final toiletType = getYamlKey<String>(yaml, 'toilet_type')
+            .expect("Couldn't parse 'toilet_type' for feature $name");
+        type = FeatureType.toilet(toiletType);
+        break;
+      case 'public_transport':
+        final busLines = getYamlList<dynamic>(yaml, 'bus_lines')
+            .expect("Couldn't parse 'bus_lines' for feature $name");
+        final tramLines = getYamlList<dynamic>(yaml, 'tram_lines')
+            .expect("Couldn't parse 'tram_lines' for feature $name");
+
+        type = FeatureType.publicTransport(
+          stringifyList(busLines)
+              .expect('Couldn\'t stringify \'bus_lines\' for feature $name'),
+          stringifyList(tramLines)
+              .expect('Couldn\'t stringify \'tram_lines\' for feature $name'),
+        );
+        break;
+      default:
+        return bail("Unknown feature type $raw_type for feature $name");
+    }
+  } catch (e) {
+    return bail("Failed to parse feature type for feature $name: $e");
+  }
+
+  return Ok(Feature(
+    name: name ?? 'Unknown',
+    type: type,
+    description: description,
+    geometry: geometry,
+    level: level,
+  ));
+}
+
+Result<List<String>> stringifyList(List<dynamic> tramLines) {
+  try {
+    return Ok(tramLines.map((e) => e.toString()).toList());
+  } catch (e) {
+    return bail("Couldn't stringify list: $e");
+  }
+}
+
+Result<List<T>> getYamlList<T>(YamlMap yaml, String key) {
+  try {
+    print('yaml is ${yaml[key]}');
+    final val = (yaml[key] as YamlList?);
+    if (val == null) {
+      return bail("Key $key is missing in yaml");
+    }
+    return Ok(val.cast<T>());
+  } catch (e) {
+    return bail("Failed to parse yaml key $key as ${T.toString()}: $e");
+  }
+}
+
+Result<T> getYamlKey<T>(YamlMap yaml, String key) {
+  try {
+    final val = yaml[key] as T?;
+    if (val == null) {
+      return bail("Key $key is missing in yaml");
+    }
+    return Ok(val);
+  } catch (e) {
+    return bail("Failed to parse yaml key $key as ${T.toString()}: $e");
+  }
+}

lib/main.dart

@@ -1,8 +1,11 @@
 import 'package:flutter/material.dart';
-import 'package:get/get_navigation/src/root/get_material_app.dart';
+import 'package:get/get.dart';
+import 'package:uninav/controllers/map_controller.dart';
 import 'package:uninav/map.dart';
+import 'package:uninav/settings.dart';
 
 void main() {
+  Get.put(MyMapController());
   runApp(const MyApp());
 }
 
@@ -33,7 +36,11 @@ class MyApp extends StatelessWidget {
         colorScheme: ColorScheme.fromSeed(seedColor: Colors.deepPurple),
         useMaterial3: true,
       ),
-      home: MapPage(),
+      initialRoute: '/map',
+      getPages: [
+        GetPage(name: '/map', page: () => const MapPage()),
+        GetPage(name: '/settings', page: () => const SettingsPage()),
+      ],
     );
   }
 }

lib/map.dart

@@ -1,9 +1,16 @@
 import 'package:anim_search_bar/anim_search_bar.dart';
 import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
 import 'package:flutter_map/flutter_map.dart';
 import 'package:flutter_map/plugin_api.dart';
+import 'package:get/get.dart';
 import 'package:latlong2/latlong.dart';
-import 'package:uninav/components/drawer..dart';
+import 'package:rust_core/slice.dart';
+import 'package:uninav/components/drawer.dart';
+import 'package:uninav/components/hamburger_menu.dart';
+import 'package:uninav/controllers/map_controller.dart';
+import 'package:uninav/data/geo/model.dart';
+import 'package:uninav/util/geomath.dart';
 import 'package:url_launcher/url_launcher.dart';
 
 class MapPage extends StatelessWidget {
@@ -12,18 +19,10 @@ class MapPage extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return Scaffold(
+        drawer: MyDrawer(),
         appBar: AppBar(
             title: const Text('Map'),
-            leading: Builder(
+            leading: HamburgerMenu(),
-              builder: (context) {
-                return IconButton(
-                  icon: Icon(Icons.menu),
-                  onPressed: () {
-                    Scaffold.of(context).openDrawer();
-                  },
-                );
-              }
-            ),
 
             // right side expanding search bar widget
             actions: [
@@ -39,29 +38,365 @@ class MapPage extends StatelessWidget {
                 },
               ),
             ]),
-        drawer: MyDrawer(),
+        floatingActionButton: FloatingActionButton(
-        body: FlutterMap(
+          onPressed: () async {
+            // Add onPressed logic here
+            await Get.find<MyMapController>().loadGeoJson(
+                await rootBundle.loadString('assets/geo/uulm_beta.geojson'));
+          },
+          child: const Icon(Icons.add),
+        ),
+        body: Stack(
+          children: [
+            FlutterMap(
               mapController: MapController(),
               options: MapOptions(
-            center: LatLng(51.5, -0.09),
+                center: LatLng(48.422766, 9.9564),
-            zoom: 13.0,
+                zoom: 16.0,
+                // camera constraints
+                maxZoom: 19,
               ),
               children: [
                 TileLayer(
-              urlTemplate: "https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png",
+                  urlTemplate: "https://tile.openstreetmap.org/{z}/{x}/{y}.png",
-              subdomains: const ['a', 'b', 'c'],
+                  maxZoom: 19,
+                ),
+
+                // buildings
+                LevelLayer(
+                  filter: (feature) => feature.type is Building,
+                ),
+
+                // public transport
+                LevelLayer(
+                  filter: (feature) =>
+                      feature.level == null && feature.type is PublicTransport,
+                  polyCenterMarkerConstructor: (center, name) => Marker(
+                    width: 100,
+                    height: 100,
+                    point: center,
+                    builder: (cx) => const Center(
+                      child: Icon(
+                        Icons.train,
+                        color: Colors.black,
+                      ),
+                    ),
+                  ),
+                  polyConstructor: (feature) => feature
+                      .getPolygon(
+                          constructor: (pts) => Polygon(
+                                points: pts,
+                                color: Colors.green.withOpacity(0.2),
+                                borderColor: Colors.green,
+                                isFilled: true,
+                                borderStrokeWidth: 1,
+                              ))
+                      .unwrap(),
+                ),
+
+                // current level
+                Obx(
+                  () => Stack(
+                    children: renderLevel(
+                        Get.find<MyMapController>().currentLevel.value),
                   ),
-            RichAttributionWidget(attributions: [
-              TextSourceAttribution(
-                'OpenStreetMap contributors',
-                onTap: () =>
-                    launchUrl(Uri.parse('https://openstreetmap.org/copyright')),
                 )
-            ])
+
-            // PolygonLayer(polygons: myGeoJson.polygons),
+                // RichAttributionWidget(attributions: [
-            // PolylineLayer(polylines: myGeoJson.polylines),
+                //   TextSourceAttribution(
-            // MarkerLayer(markers: myGeoJson.markers)
+                //     'OpenStreetMap contributors',
+                //     onTap: () =>
+                //         launchUrl(Uri.parse('https://openstreetmap.org/copyright')),
+                //   )
+                // ]),
+              ],
+            ),
+            Positioned(
+                left: 16,
+                bottom: 16,
+                child: Container(
+                  decoration: BoxDecoration(
+                    color: Theme.of(context).colorScheme.surface,
+                    borderRadius: BorderRadius.circular(8),
+                    border: Border.all(
+                      color: Colors.grey,
+                      width: 1,
+                    ),
+                  ),
+                  padding:
+                      const EdgeInsets.symmetric(horizontal: 8, vertical: 4),
+                  child: Obx(
+                    () => DropdownButton<int>(
+                      value: Get.find<MyMapController>().currentLevel.value,
+                      style: TextStyle(
+                          color: Theme.of(context).colorScheme.onSurface),
+                      dropdownColor: Theme.of(context).colorScheme.surface,
+                      onChanged: (int? newValue) {
+                        if (newValue != null) {
+                          Get.find<MyMapController>().setLevel(newValue);
+                        }
+                        // Handle dropdown value change
+                      },
+                      items: Get.find<MyMapController>()
+                          .levels
+                          .map<DropdownMenuItem<int>>((int value) {
+                        return DropdownMenuItem<int>(
+                          value: value,
+                          child: Text("Level $value"),
+                        );
+                      }).toList(),
+                    ),
+                  ),
+                )),
           ],
         ));
   }
 }
+
+List<Widget> renderLevel(int level) {
+  return <Widget>[
+    LevelLayer(
+        filter: (feature) =>
+            feature.level == level && feature.type is LectureHall,
+        polyConstructor: (feature) => feature
+            .getPolygon(
+              constructor: (pts) => Polygon(
+                points: pts,
+                color: Colors.orange.withOpacity(0.2),
+                borderColor: Colors.orange,
+                isFilled: true,
+                borderStrokeWidth: 1,
+              ),
+            )
+            .unwrap(),
+        markerConstructor: (feature) => Marker(
+              width: 150,
+              height: 60,
+              point: feature.getPoint().unwrap(),
+              builder: (cx) => Center(
+                child: Column(
+                  children: [
+                    Icon(
+                      Icons.class_,
+                      color: Colors.black,
+                    ),
+                    Text('${feature.name}'),
+                  ],
+                ),
+              ),
+            )),
+    LevelLayer(
+      filter: (feature) => feature.level == level && feature.type is Room,
+      polyConstructor: (feature) => feature
+          .getPolygon(
+            constructor: (pts) => Polygon(
+              points: pts,
+              color: Colors.green.withOpacity(0.2),
+              borderColor: Colors.green,
+              isFilled: true,
+              borderStrokeWidth: 1,
+            ),
+          )
+          .unwrap(),
+    ),
+    LevelLayer(
+      filter: (feature) => feature.level == level && feature.type is Door,
+      markerConstructor: (feature) {
+        final point = feature.getPoint().unwrap();
+        return Marker(
+          width: 20,
+          height: 20,
+          point: point,
+          builder: (ctx) => const Icon(
+            Icons.door_front_door,
+            color: Colors.brown,
+          ),
+        );
+      },
+    ),
+    LevelLayer(
+      filter: (feature) => feature.level == level && feature.type is Toilet,
+      markerConstructor: (feature) {
+        final type = (feature.type as Toilet).toilet_type;
+        IconData icon;
+        switch (type.toLowerCase()) {
+          case 'male':
+            icon = Icons.male;
+            break;
+          case 'female':
+            icon = Icons.female;
+            break;
+          case 'handicap':
+            icon = Icons.wheelchair_pickup;
+            break;
+          default:
+            print("WARN: Toilet didn't have recognizable type! "
+                "(Level ${feature.level}, Name ${feature.name}, "
+                "Location: ${feature.getPoint().unwrap()})");
+            icon = Icons.wc;
+            break;
+        }
+
+        final point = feature.getPoint().unwrap();
+        return Marker(
+          width: 20,
+          height: 20,
+          point: point,
+          builder: (ctx) => Icon(
+            icon,
+            color: Colors.purple,
+          ),
+          rotateAlignment: Alignment.center,
+        );
+      },
+    ),
+    LevelLayer(
+      filter: (feature) =>
+          feature.type is Stairs &&
+          (feature.type as Stairs).connects_levels.contains(level),
+      markerConstructor: (feature) {
+        final point = feature.getPoint().unwrap();
+        return Marker(
+          width: 20,
+          height: 20,
+          point: point,
+          builder: (ctx) => Icon(
+            Icons.stairs_outlined,
+            color: Colors.deepPurple.shade300,
+          ),
+        );
+      },
+    ),
+    LevelLayer(
+      filter: (feature) =>
+          feature.type is Lift &&
+          (feature.type as Lift).connects_levels.contains(level),
+      markerConstructor: (feature) {
+        final point = feature.getPoint().unwrap();
+        return Marker(
+          width: 20,
+          height: 20,
+          point: point,
+          builder: (ctx) => const Icon(
+            Icons.elevator_outlined,
+            color: Colors.deepPurple,
+          ),
+        );
+      },
+    ),
+  ];
+}
+
+class LevelLayer extends StatelessWidget {
+  final bool Function(Feature)? filter;
+  final Polygon Function(Feature)? polyConstructor;
+  final Marker Function(LatLng, String)? polyCenterMarkerConstructor;
+  final Marker Function(Feature)? markerConstructor;
+  final int? level;
+
+  const LevelLayer({
+    this.level,
+    this.filter,
+    this.polyConstructor,
+    this.polyCenterMarkerConstructor,
+    this.markerConstructor,
+    super.key,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    final myMapController = Get.find<MyMapController>();
+
+    return Obx(() {
+      final List<Polygon> filteredPolygons = [];
+      final List<Marker> polygonCenterMarkers = [];
+      final List<Marker> filteredMarkers = [];
+
+      for (final feature in myMapController.features) {
+        if (filter == null || filter!(feature)) {
+          if (feature.isPolygon()) {
+            if (polyConstructor != null) {
+              filteredPolygons.add(polyConstructor!(feature));
+            } else {
+              filteredPolygons.add(feature.getPolygon().unwrap());
+            }
+
+            // calculate polygon center
+            final center =
+                polygonCenterMinmax(feature.getPolygon().unwrap().points);
+            if (polyCenterMarkerConstructor != null) {
+              polygonCenterMarkers
+                  .add(polyCenterMarkerConstructor!(center, feature.name));
+            } else {
+              polygonCenterMarkers.add(Marker(
+                width: 100,
+                height: 100,
+                point: center,
+                builder: (cx) => Center(
+                  child: Text(
+                    feature.name,
+                    style: const TextStyle(
+                      color: Colors.black54,
+                      // backgroundColor: Colors.white,
+                    ),
+                  ),
+                ),
+              ));
+            }
+          } else if (feature.isPoint()) {
+            if (markerConstructor != null) {
+              filteredMarkers.add(markerConstructor!(feature));
+            } else {
+              final point = feature.getPoint().unwrap();
+              filteredMarkers.add(Marker(
+                width: 100,
+                height: 100,
+                point: point,
+                builder: (cx) => Center(
+                  child: Text(
+                    feature.name,
+                    style: const TextStyle(
+                      color: Colors.black54,
+                      // backgroundColor: Colors.white,
+                    ),
+                  ),
+                ),
+              ));
+            }
+          }
+        }
+      }
+      // print(filteredPolygons.length);
+      // print(filteredPolygons);
+
+      // print(filteredPolygons[0].points[0]);
+      // print(myMapController.features.length);
+
+      final List<Widget> widgets = [];
+      if (filteredPolygons.isNotEmpty) {
+        if (polyConstructor != null) {
+          widgets.add(PolygonLayer(polygons: filteredPolygons));
+        } else {
+          widgets.add(PolygonLayer(
+              polygons: filteredPolygons
+                  .map((poly) => Polygon(
+                        points: poly.points,
+                        borderColor: Colors.black26,
+                        borderStrokeWidth: 2.0,
+                      ))
+                  .toList()));
+        }
+        widgets.add(MarkerLayer(
+          markers: polygonCenterMarkers,
+          rotate: true,
+        ));
+      }
+
+      if (filteredMarkers.isNotEmpty) {
+        widgets.add(MarkerLayer(markers: filteredMarkers, rotate: true));
+      }
+
+      return Stack(children: widgets);
+    });
+  }
+}

lib/settings copy.dart

@@ -0,0 +1,21 @@
+import 'package:flutter/material.dart';
+import 'package:uninav/components/drawer.dart';
+import 'package:uninav/components/hamburger_menu.dart';
+
+class SettingsPage extends StatelessWidget {
+  const SettingsPage({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('Settings'),
+        leading: HamburgerMenu(),
+      ),
+      drawer: MyDrawer(),
+      body: const Center(
+        child: Text('TODO'),
+      ),
+    );
+  }
+}

lib/settings.dart

@@ -0,0 +1,21 @@
+import 'package:flutter/material.dart';
+import 'package:uninav/components/drawer.dart';
+import 'package:uninav/components/hamburger_menu.dart';
+
+class SettingsPage extends StatelessWidget {
+  const SettingsPage({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(
+        title: const Text('Settings'),
+        leading: HamburgerMenu(),
+      ),
+      drawer: MyDrawer(),
+      body: const Center(
+        child: Text('TODO'),
+      ),
+    );
+  }
+}

lib/util/geomath.dart

@@ -0,0 +1,37 @@
+import 'dart:math';
+
+import 'package:latlong2/latlong.dart';
+
+LatLng polygonCenterMinmax(List<LatLng> polygon) {
+  double minLat = double.infinity;
+  double maxLat = double.negativeInfinity;
+  double minLng = double.infinity;
+  double maxLng = double.negativeInfinity;
+
+  for (LatLng point in polygon) {
+    minLat = min(minLat, point.latitude);
+    maxLat = max(maxLat, point.latitude);
+    minLng = min(minLng, point.longitude);
+    maxLng = max(maxLng, point.longitude);
+  }
+
+  double centerLat = (minLat + maxLat) / 2;
+  double centerLng = (minLng + maxLng) / 2;
+
+  return LatLng(centerLat, centerLng);
+}
+
+LatLng polygonCenterAvg(List<LatLng> polygon) {
+  double sumLat = 0;
+  double sumLng = 0;
+
+  for (LatLng point in polygon) {
+    sumLat += point.latitude;
+    sumLng += point.longitude;
+  }
+
+  double centerLat = sumLat / polygon.length;
+  double centerLng = sumLng / polygon.length;
+
+  return LatLng(centerLat, centerLng);
+}

pubspec.lock

@@ -1,6 +1,22 @@
 # Generated by pub
 # See https://dart.dev/tools/pub/glossary#lockfile
 packages:
+  _fe_analyzer_shared:
+    dependency: transitive
+    description:
+      name: _fe_analyzer_shared
+      sha256: "0b2f2bd91ba804e53a61d757b986f89f1f9eaed5b11e4b2f5a2468d86d6c9fc7"
+      url: "https://pub.dev"
+    source: hosted
+    version: "67.0.0"
+  analyzer:
+    dependency: transitive
+    description:
+      name: analyzer
+      sha256: "37577842a27e4338429a1cbc32679d508836510b056f1eedf0c8d20e39c1383d"
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.4.1"
   anim_search_bar:
     dependency: "direct main"
     description:
@@ -9,6 +25,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.0.3"
+  anyhow:
+    dependency: "direct main"
+    description:
+      name: anyhow
+      sha256: "8fcd8a16ab1dadcae0d77b880c4cda85367876ef9da6ca7fd68ce6ce51679bbe"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.3.0"
+  args:
+    dependency: transitive
+    description:
+      name: args
+      sha256: "7cf60b9f0cc88203c5a190b4cd62a99feea42759a7fa695010eb5de1c0b2252a"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.5.0"
   async:
     dependency: transitive
     description:
@@ -25,6 +57,70 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.1.1"
+  build:
+    dependency: transitive
+    description:
+      name: build
+      sha256: "80184af8b6cb3e5c1c4ec6d8544d27711700bc3e6d2efad04238c7b5290889f0"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.1"
+  build_config:
+    dependency: transitive
+    description:
+      name: build_config
+      sha256: bf80fcfb46a29945b423bd9aad884590fb1dc69b330a4d4700cac476af1708d1
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.1"
+  build_daemon:
+    dependency: transitive
+    description:
+      name: build_daemon
+      sha256: "0343061a33da9c5810b2d6cee51945127d8f4c060b7fbdd9d54917f0a3feaaa1"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.0.1"
+  build_resolvers:
+    dependency: transitive
+    description:
+      name: build_resolvers
+      sha256: "339086358431fa15d7eca8b6a36e5d783728cf025e559b834f4609a1fcfb7b0a"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.2"
+  build_runner:
+    dependency: "direct dev"
+    description:
+      name: build_runner
+      sha256: "3ac61a79bfb6f6cc11f693591063a7f19a7af628dc52f141743edac5c16e8c22"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.9"
+  build_runner_core:
+    dependency: transitive
+    description:
+      name: build_runner_core
+      sha256: "4ae8ffe5ac758da294ecf1802f2aff01558d8b1b00616aa7538ea9a8a5d50799"
+      url: "https://pub.dev"
+    source: hosted
+    version: "7.3.0"
+  built_collection:
+    dependency: transitive
+    description:
+      name: built_collection
+      sha256: "376e3dd27b51ea877c28d525560790aee2e6fbb5f20e2f85d5081027d94e2100"
+      url: "https://pub.dev"
+    source: hosted
+    version: "5.1.1"
+  built_value:
+    dependency: transitive
+    description:
+      name: built_value
+      sha256: c7913a9737ee4007efedaffc968c049fd0f3d0e49109e778edc10de9426005cb
+      url: "https://pub.dev"
+    source: hosted
+    version: "8.9.2"
   characters:
     dependency: transitive
     description:
@@ -33,6 +129,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.3.0"
+  checked_yaml:
+    dependency: transitive
+    description:
+      name: checked_yaml
+      sha256: feb6bed21949061731a7a75fc5d2aa727cf160b91af9a3e464c5e3a32e28b5ff
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.3"
   clock:
     dependency: transitive
     description:
@@ -41,6 +145,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.1.1"
+  code_builder:
+    dependency: transitive
+    description:
+      name: code_builder
+      sha256: f692079e25e7869c14132d39f223f8eec9830eb76131925143b2129c4bb01b37
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.10.0"
   collection:
     dependency: transitive
     description:
@@ -49,6 +161,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.18.0"
+  convert:
+    dependency: transitive
+    description:
+      name: convert
+      sha256: "0f08b14755d163f6e2134cb58222dd25ea2a2ee8a195e53983d57c075324d592"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.1"
   crypto:
     dependency: transitive
     description:
@@ -65,6 +185,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.0.8"
+  dart_style:
+    dependency: transitive
+    description:
+      name: dart_style
+      sha256: "99e066ce75c89d6b29903d788a7bb9369cf754f7b24bf70bf4b6d6d6b26853b9"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.3.6"
   extra_pedantic:
     dependency: transitive
     description:
@@ -81,6 +209,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.3.1"
+  file:
+    dependency: transitive
+    description:
+      name: file
+      sha256: "5fc22d7c25582e38ad9a8515372cd9a93834027aacf1801cf01164dac0ffa08c"
+      url: "https://pub.dev"
+    source: hosted
+    version: "7.0.0"
   fixnum:
     dependency: transitive
     description:
@@ -120,6 +256,30 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  freezed:
+    dependency: "direct dev"
+    description:
+      name: freezed
+      sha256: a434911f643466d78462625df76fd9eb13e57348ff43fe1f77bbe909522c67a1
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.5.2"
+  freezed_annotation:
+    dependency: "direct main"
+    description:
+      name: freezed_annotation
+      sha256: c3fd9336eb55a38cc1bbd79ab17573113a8deccd0ecbbf926cca3c62803b5c2d
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.1"
+  frontend_server_client:
+    dependency: transitive
+    description:
+      name: frontend_server_client
+      sha256: f64a0333a82f30b0cca061bc3d143813a486dc086b574bfb233b7c1372427694
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.0.0"
   geodesy:
     dependency: transitive
     description:
@@ -152,6 +312,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "4.6.6"
+  glob:
+    dependency: transitive
+    description:
+      name: glob
+      sha256: "0e7014b3b7d4dac1ca4d6114f82bf1782ee86745b9b42a92c9289c23d8a0ab63"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.2"
+  graphs:
+    dependency: transitive
+    description:
+      name: graphs
+      sha256: aedc5a15e78fc65a6e23bcd927f24c64dd995062bcd1ca6eda65a3cff92a4d19
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.3.1"
   http:
     dependency: transitive
     description:
@@ -160,6 +336,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.13.6"
+  http_multi_server:
+    dependency: transitive
+    description:
+      name: http_multi_server
+      sha256: "97486f20f9c2f7be8f514851703d0119c3596d14ea63227af6f7a481ef2b2f8b"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.2.1"
   http_parser:
     dependency: transitive
     description:
@@ -176,6 +360,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.19.0"
+  io:
+    dependency: transitive
+    description:
+      name: io
+      sha256: "2ec25704aba361659e10e3e5f5d672068d332fc8ac516421d483a11e5cbd061e"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.4"
   iso:
     dependency: transitive
     description:
@@ -184,6 +376,30 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.0.0"
+  js:
+    dependency: transitive
+    description:
+      name: js
+      sha256: c1b2e9b5ea78c45e1a0788d29606ba27dc5f71f019f32ca5140f61ef071838cf
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.7.1"
+  json_annotation:
+    dependency: "direct main"
+    description:
+      name: json_annotation
+      sha256: b10a7b2ff83d83c777edba3c6a0f97045ddadd56c944e1a23a3fdf43a1bf4467
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.8.1"
+  json_serializable:
+    dependency: "direct dev"
+    description:
+      name: json_serializable
+      sha256: aa1f5a8912615733e0fdc7a02af03308933c93235bdc8d50d0b0c8a8ccb0b969
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.7.1"
   latlong2:
     dependency: "direct main"
     description:
@@ -232,6 +448,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.0.1"
+  logging:
+    dependency: transitive
+    description:
+      name: logging
+      sha256: "623a88c9594aa774443aa3eb2d41807a48486b5613e67599fb4c41c0ad47c340"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.2.0"
   matcher:
     dependency: transitive
     description:
@@ -264,6 +488,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.0.0"
+  mime:
+    dependency: transitive
+    description:
+      name: mime
+      sha256: "2e123074287cc9fd6c09de8336dae606d1ddb88d9ac47358826db698c176a1f2"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.5"
+  package_config:
+    dependency: transitive
+    description:
+      name: package_config
+      sha256: "1c5b77ccc91e4823a5af61ee74e6b972db1ef98c2ff5a18d3161c982a55448bd"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.0"
   path:
     dependency: transitive
     description:
@@ -296,6 +536,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.0.1"
+  pool:
+    dependency: transitive
+    description:
+      name: pool
+      sha256: "20fe868b6314b322ea036ba325e6fc0711a22948856475e2c2b6306e8ab39c2a"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.5.1"
   proj4dart:
     dependency: transitive
     description:
@@ -304,6 +552,46 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.1.0"
+  pub_semver:
+    dependency: transitive
+    description:
+      name: pub_semver
+      sha256: "40d3ab1bbd474c4c2328c91e3a7df8c6dd629b79ece4c4bd04bee496a224fb0c"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.4"
+  pubspec_parse:
+    dependency: transitive
+    description:
+      name: pubspec_parse
+      sha256: c63b2876e58e194e4b0828fcb080ad0e06d051cb607a6be51a9e084f47cb9367
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.2.3"
+  rust_core:
+    dependency: "direct main"
+    description:
+      name: rust_core
+      sha256: "3b61f6e32dc8af47dc8fa27b662c5ace9db713fd4dd5e9fd77400e6577d51fb8"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.5.3"
+  shelf:
+    dependency: transitive
+    description:
+      name: shelf
+      sha256: ad29c505aee705f41a4d8963641f91ac4cee3c8fad5947e033390a7bd8180fa4
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.4.1"
+  shelf_web_socket:
+    dependency: transitive
+    description:
+      name: shelf_web_socket
+      sha256: "9ca081be41c60190ebcb4766b2486a7d50261db7bd0f5d9615f2d653637a84c1"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.4"
   sky_engine:
     dependency: transitive
     description: flutter
@@ -317,6 +605,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.0.0"
+  source_gen:
+    dependency: transitive
+    description:
+      name: source_gen
+      sha256: "14658ba5f669685cd3d63701d01b31ea748310f7ab854e471962670abcf57832"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.5.0"
+  source_helper:
+    dependency: transitive
+    description:
+      name: source_helper
+      sha256: "6adebc0006c37dd63fe05bca0a929b99f06402fc95aa35bf36d67f5c06de01fd"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.3.4"
   source_span:
     dependency: transitive
     description:
@@ -349,6 +653,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.1.2"
+  stream_transform:
+    dependency: transitive
+    description:
+      name: stream_transform
+      sha256: "14a00e794c7c11aa145a170587321aedce29769c08d7f58b1d141da75e3b1c6f"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.0"
   string_scanner:
     dependency: transitive
     description:
@@ -381,6 +693,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.6.1"
+  timing:
+    dependency: transitive
+    description:
+      name: timing
+      sha256: "70a3b636575d4163c477e6de42f247a23b315ae20e86442bebe32d3cabf61c32"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.1"
   tuple:
     dependency: transitive
     description:
@@ -493,6 +813,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "13.0.0"
+  watcher:
+    dependency: transitive
+    description:
+      name: watcher
+      sha256: "3d2ad6751b3c16cf07c7fca317a1413b3f26530319181b37e3b9039b84fc01d8"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.0"
   web:
     dependency: transitive
     description:

pubspec.yaml

@@ -39,10 +39,14 @@ dependencies:
   yaml: ^3.1.2
   surrealdb: ^0.8.0
   geojson: ^1.0.0
-  flutter_map: ^4.0.0
+  flutter_map: 7.0.0-dev.1
-  latlong2: ^0.8.2
+  # latlong2: ^0.9.0
   url_launcher: ^6.2.6
   anim_search_bar: ^2.0.3
+  freezed_annotation: ^2.4.1
+  json_annotation: ^4.8.1
+  rust_core: ^0.5.3
+  anyhow: ^1.3.0
 
 dev_dependencies:
   flutter_test:
@@ -54,6 +58,9 @@ dev_dependencies:
   # package. See that file for information about deactivating specific lint
   # rules and activating additional ones.
   flutter_lints: ^3.0.0
+  build_runner: ^2.4.9
+  freezed: ^2.5.2
+  json_serializable: ^6.7.1
 
 # For information on the generic Dart part of this file, see the
 # following page: https://dart.dev/tools/pub/pubspec
@@ -67,7 +74,9 @@ flutter:
   uses-material-design: true
 
   # To add assets to your application, add an assets section, like this:
-  # assets:
+  assets:
+    # - assets/geo/
+    - assets/geo/uulm_beta.geojson
   #   - images/a_dot_burr.jpeg
   #   - images/a_dot_ham.jpeg
 

test/geojson_tests.dart

@@ -0,0 +1 @@
+