update

lib/pages/home/home_controller.dart

@@ -1,7 +1,10 @@
 
 
+import 'package:flutter_map/plugin_api.dart';
 import 'package:geojson/geojson.dart';
 import 'package:get/get.dart';
+import 'package:latlong2/latlong.dart';
+import 'package:rogapp/pages/map/map_page.dart';
 import 'package:rogapp/services/location_service.dart';
 import 'package:rogapp/services/perfecture_service.dart';
 
@@ -10,20 +13,86 @@ class HomeController extends GetxController {
   List<GeoJsonFeatureCollection> locations = <GeoJsonFeatureCollection>[].obs;
   List<GeoJsonFeature> currentFeature = <GeoJsonFeature>[].obs;
   List<dynamic> perfectures = <dynamic>[].obs;
+  List<LatLngBounds> currentBound = <LatLngBounds>[].obs;
+  List<dynamic> subPerfs = <dynamic>[].obs;
 
 
   @override
   void onInit() {
-    super.onInit();
     LocationService.loadLocations().then((value){
       locations.add(value!);
     });
 
     PerfectureService.loadPerfectures().then((value){
       perfectures.add(value);
-      print(perfectures);
     });
+    
+    super.onInit();
 
+  }
+
+   void getBoundFromLatLng(List<LatLng> list) {
+    double? x0, x1, y0, y1;
+    for (LatLng latLng in list) {
+      if (x0 == null) {
+        x0 = x1 = latLng.latitude;
+        y0 = y1 = latLng.longitude;
+      } else {
+        if (latLng.latitude > x1!) x1 = latLng.latitude;
+        if (latLng.latitude < x0) x0 = latLng.latitude;
+        if (latLng.longitude > y1!) y1 = latLng.longitude;
+        if (latLng.longitude < y0!) y0 = latLng.longitude;
+      }
+    }
+    currentBound.clear();
+    currentBound.add(LatLngBounds(LatLng(x1!, y1!), LatLng(x0!, y0!)));
+  }
+
+  void setBounds(){
+    List<LatLng> lts = [];
+    if(locations.length > 0){
+          for(GeoJsonFeature i in locations[0].collection){
+            GeoJsonMultiPoint p = i.geometry as GeoJsonMultiPoint;
+            LatLng lt = LatLng(p.geoSerie!.geoPoints[0].latitude , p.geoSerie!.geoPoints[0].longitude) ;
+            lts.add(lt);
+        }
+      }
+      else{
+        LatLng lt = LatLng(37.15319600454702, 139.58765950528198);
+        lts.add(lt);
+      }
+      getBoundFromLatLng(lts);
+  }
+
+  void loadLocationforPerf(String perf){
+    locations.clear();
+    LocationService.loadLocationsFor(perf).then((value){
+      locations.add(value!);
+       setBounds();
+       MapPage.mapController.fitBounds(currentBound[0]);
+    });
+  }
+
+  String getSubInitialVal(){
+    int min = 0;
+    if(subPerfs.length > 0){
+      min = subPerfs[0][0]['id'] as int;
+      for(var sub in subPerfs[0]){
+        int x = sub['id'] as int;
+        if(x < min){
+          min = x;
+        }
+      }
+    }
+    return min.toString();
+  }
+
+  void loadSubPerfFor(String perf){
+    subPerfs.clear();
+    PerfectureService.loadSubPerfectures(perf).then((value){
+      subPerfs.add(value);
+      print(subPerfs);
+    });
   }
 
     GeoJsonFeature? getFeatureForLatLong(double lat, double long){

lib/pages/map/map_page.dart

@@ -21,7 +21,26 @@ class MapPage extends StatelessWidget {
 
   final HomeController homeController = Get.find<HomeController>();
 
-  final MapController mapController = MapController();
+  static final MapController mapController = MapController();
+
+
+  Widget getBreadCurms(){
+    print("---------map-------------");
+    return Obx(() =>
+                  homeController.perfectures.length > 0 ?
+                  BreadCrumb.builder(
+                  itemCount: homeController.perfectures.length,
+                  builder: (index) {
+                    return BreadCrumbItem(
+                      content: PerfectureWidget(homeController: homeController,) //Text('Item$index')
+                      );
+                  },
+                  divider: Icon(Icons.chevron_right),
+                ) : 
+                Container(width: 0, height: 0,), 
+                );
+  }
+
 
   @override
   Widget build(BuildContext context) {
@@ -68,16 +87,8 @@ class MapPage extends StatelessWidget {
               height: 50.0,
               child: SingleChildScrollView(
                 scrollDirection: Axis.horizontal,
-                child: BreadCrumb(
-                  items: <BreadCrumbItem>[
-                    BreadCrumbItem(content:
-                     //Text('Item1', style: TextStyle(fontSize: 16.0, fontWeight: FontWeight.bold),)
-                     PerfectureWidget(),
-                    ),
-                                BreadCrumbItem(content: Text('Item2', style: TextStyle(fontSize: 16.0, fontWeight: FontWeight.bold),)),
-                  ],
-                  divider: Icon(Icons.chevron_right),
-                ),
+                child: 
+                getBreadCurms(),
               ),
             ),
             Expanded(
@@ -87,7 +98,9 @@ class MapPage extends StatelessWidget {
                     FlutterMap(
                       mapController: mapController,
                       options: MapOptions(
-                          center: LatLng(37.15319600454702, 139.58765950528198),
+                          
+                          //center: LatLng(37.15319600454702, 139.58765950528198),
+                          bounds: homeController.currentBound.length > 0 ? homeController.currentBound[0]: LatLngBounds.fromPoints([LatLng(37.15319600454702, 139.58765950528198)]),
                           zoom: 6,
                           maxZoom: 20,
                           plugins: [
@@ -121,13 +134,14 @@ class MapPage extends StatelessWidget {
                                     builder:((context) => BottomSheetWidget())
                                   );
                                 }
+                                
                               },
             
                               size: Size(40, 40),
                               anchor: AnchorPos.align(AnchorAlign.center),
                               fitBoundsOptions: const FitBoundsOptions(
                                 padding: EdgeInsets.all(50),
-                                maxZoom: 15,
+                                maxZoom: 265,
                               ),
                               markers:homeController.locations[0].collection.map((i) {
                                 GeoJsonMultiPoint p = i.geometry as GeoJsonMultiPoint;