Persist map flags and toggle selected parcels

Components/Pages/Home.razor

@@ -58,8 +58,15 @@
                         </span>
                     </label>
                 }
+                <label class="map-layer-option">
+                    <input type="checkbox" @bind="ShowSelectedParcels" @bind:after="ApplySelectedParcelsVisibility" />
+                    <span>
+                        <strong>Particelle selezionate</strong>
+                        <small>Nascondi o mostra senza eliminare i dati</small>
+                    </span>
+                </label>
                 <div class="layer-panel-actions">
-                    <button class="secondary-command" @onclick="ClearSelectedParcels">Rimuovi particelle selezionate</button>
+                    <button class="danger-command" @onclick="ClearSelectedParcels">Elimina definitivamente le particelle selezionate</button>
                     <button class="danger-command" @onclick="ClearMapElements">Pulisci elementi mappa</button>
                 </div>
             </section>
@@ -161,7 +168,7 @@
                                 <input id="gisFileInput" type="file" accept=".kml,.kmz,.geojson,.json,application/vnd.google-earth.kml+xml,application/vnd.google-earth.kmz,application/geo+json" />
                             </label>
                             <label class="toggle-line project-save-option">
-                                <input type="checkbox" checked="@IncludeKmlSheetLayer" @onchange="ToggleKmlSheetLayer" />
+                                <input type="checkbox" @bind="IncludeKmlSheetLayer" @bind:after="ApplyKmlSheetLayerOption" />
                                 <span>KML/KMZ: includi anche il layer del foglio</span>
                             </label>
                             <small class="field-help">
@@ -170,12 +177,12 @@
                                     : "Disattivato: importa solo i poligoni delle particelle riconosciute.")
                             </small>
                             <label class="toggle-line project-save-option">
-                                <input type="checkbox" checked="@ShowImportedSheetLayer" @onchange="ToggleImportedSheetLayer" />
+                                <input type="checkbox" @bind="ShowImportedSheetLayer" @bind:after="ApplyImportedSheetLayerVisibility" />
                                 <span>Mostra cornice/layer del foglio importato</span>
                             </label>
                             <small class="field-help">La cornice grande resta separata dalle particelle e puo essere nascosta anche nei progetti salvati.</small>
                             <label class="toggle-line project-save-option">
-                                <input type="checkbox" checked="@ShowImportedMeasurements" @onchange="ToggleImportedMeasurements" />
+                                <input type="checkbox" @bind="ShowImportedMeasurements" @bind:after="ApplyImportedMeasurementsVisibility" />
                                 <span>Mostra misure dei file caricati</span>
                             </label>
                             <div class="button-row">
@@ -187,7 +194,7 @@
                         <section class="panel-section">
                             <h2>Disegni e misure</h2>
                             <label class="toggle-line project-save-option">
-                                <input type="checkbox" checked="@ShowDrawingMeasurements" @onchange="ToggleDrawingMeasurements" />
+                                <input type="checkbox" @bind="ShowDrawingMeasurements" @bind:after="ApplyDrawingMeasurementsVisibility" />
                                 <span>Mostra superficie, perimetro e lati</span>
                             </label>
                             <button class="secondary-command" aria-pressed="@DrawToolsVisible" @onclick="ToggleDrawTools">
@@ -225,27 +232,27 @@
                             </label>
                             <div class="export-options" role="group" aria-label="Oggetti da esportare">
                                 <label class="toggle-line project-save-option">
-                                    <input type="checkbox" @bind="ExportImported" />
+                                    <input type="checkbox" @bind="ExportImported" @bind:after="SaveFlagPreferences" />
                                     <span>Particelle e dati GIS importati</span>
                                 </label>
                                 <label class="toggle-line project-save-option">
-                                    <input type="checkbox" @bind="ExportImportedSheets" />
+                                    <input type="checkbox" @bind="ExportImportedSheets" @bind:after="SaveFlagPreferences" />
                                     <span>Cornici, fogli e riquadri KMZ</span>
                                 </label>
                                 <label class="toggle-line project-save-option">
-                                    <input type="checkbox" @bind="ExportCadastral" />
+                                    <input type="checkbox" @bind="ExportCadastral" @bind:after="SaveFlagPreferences" />
                                     <span>Particelle catastali rosse e GPS</span>
                                 </label>
                                 <label class="toggle-line project-save-option">
-                                    <input type="checkbox" @bind="ExportDrawings" />
+                                    <input type="checkbox" @bind="ExportDrawings" @bind:after="SaveFlagPreferences" />
                                     <span>Disegni, aree, linee e cerchi</span>
                                 </label>
                                 <label class="toggle-line project-save-option">
-                                    <input type="checkbox" @bind="ExportPoi" />
+                                    <input type="checkbox" @bind="ExportPoi" @bind:after="SaveFlagPreferences" />
                                     <span>Punti di interesse</span>
                                 </label>
                                 <label class="toggle-line project-save-option">
-                                    <input type="checkbox" @bind="ExportTrail" />
+                                    <input type="checkbox" @bind="ExportTrail" @bind:after="SaveFlagPreferences" />
                                     <span>Traccia GPS registrata</span>
                                 </label>
                             </div>
@@ -267,7 +274,7 @@
                                 <input @bind="NewProjectName" @bind:event="oninput" placeholder="Es. Rilievo San Nicola" maxlength="80" />
                             </label>
                             <label class="toggle-line project-save-option">
-                                <input type="checkbox" @bind="IncludeCadastralParcels" />
+                                <input type="checkbox" @bind="IncludeCadastralParcels" @bind:after="SaveFlagPreferences" />
                                 <span>Includi le particelle catastali rosse</span>
                             </label>
                             <button class="primary-command" @onclick="SaveProject" disabled="@(ProjectBusy || string.IsNullOrWhiteSpace(NewProjectName))">Salva progetto</button>
@@ -295,16 +302,16 @@
                         <section class="panel-section">
                             <h2>Visualizzazione progetto</h2>
                             <label class="toggle-line project-save-option">
-                                <input type="checkbox" checked="@ShowImportedSheetLayer" @onchange="ToggleImportedSheetLayer" />
+                                <input type="checkbox" @bind="ShowImportedSheetLayer" @bind:after="ApplyImportedSheetLayerVisibility" />
                                 <span>Mostra cornice/layer del foglio importato</span>
                             </label>
                             <small class="field-help">Il comando agisce subito sulla mappa e sui dati del progetto caricato.</small>
                             <label class="toggle-line project-save-option">
-                                <input type="checkbox" checked="@ShowImportedMeasurements" @onchange="ToggleImportedMeasurements" />
+                                <input type="checkbox" @bind="ShowImportedMeasurements" @bind:after="ApplyImportedMeasurementsVisibility" />
                                 <span>Mostra misure dei file caricati</span>
                             </label>
                             <label class="toggle-line project-save-option">
-                                <input type="checkbox" checked="@ShowDrawingMeasurements" @onchange="ToggleDrawingMeasurements" />
+                                <input type="checkbox" @bind="ShowDrawingMeasurements" @bind:after="ApplyDrawingMeasurementsVisibility" />
                                 <span>Mostra misure dei disegni</span>
                             </label>
                         </section>
@@ -357,11 +364,11 @@
                         <section class="panel-section">
                             <h2>GPS e percorso</h2>
                             <label class="toggle-line project-save-option">
-                                <input type="checkbox" checked="@ShowGpsPosition" @onchange="ToggleGpsPosition" />
+                                <input type="checkbox" @bind="ShowGpsPosition" @bind:after="ApplyGpsPositionVisibility" />
                                 <span>Mostra punto e cerchio GPS</span>
                             </label>
                             <label class="toggle-line project-save-option">
-                                <input type="checkbox" checked="@TrailEnabled" @onchange="ToggleTrail" />
+                                <input type="checkbox" @bind="TrailEnabled" @bind:after="ApplyTrailOption" />
                                 <span>Registra la traccia mentre cammini</span>
                             </label>
                         </section>
@@ -415,6 +422,7 @@
 </div>
 
 @code {
+    private const string FlagPreferencePrefix = "lme_flag_";
     private string ActiveTab { get; set; } = "map";
     private string SearchText { get; set; } = string.Empty;
     private string NewProjectName { get; set; } = string.Empty;
@@ -437,6 +445,7 @@
     private bool CatalogBusy { get; set; }
     private bool GpsActive { get; set; }
     private bool ShowGpsPosition { get; set; } = true;
+    private bool ShowSelectedParcels { get; set; } = true;
     private bool DrawToolsVisible { get; set; }
     private bool TrailEnabled { get; set; }
     private bool LayerPanelOpen { get; set; }
@@ -502,6 +511,8 @@
 
     protected override async Task OnInitializedAsync()
     {
+        LoadFlagPreferences();
+
         try
         {
             GoogleMapsApiKey = await SecureStorage.Default.GetAsync("google_maps_api_key") ?? string.Empty;
@@ -537,6 +548,7 @@
         if (firstRender)
         {
             await JS.InvokeVoidAsync("lmeMap.init");
+            await ApplyFlagPreferencesToMapAsync();
             await CenterOnInitialLocationAsync();
             await MigrateLegacyProjectAsync();
         }
@@ -854,9 +866,9 @@
         }
     }
 
-    private async Task ToggleGpsPosition(ChangeEventArgs args)
+    private async Task ApplyGpsPositionVisibility()
     {
-        ShowGpsPosition = (bool?)args.Value == true;
+        SaveFlagPreferences();
         await JS.InvokeVoidAsync("lmeMap.setGpsPositionVisible", ShowGpsPosition);
     }
 
@@ -969,39 +981,41 @@
     private async Task ClearImportedLayers()
     {
         ShowImportedSheetLayer = false;
+        SaveFlagPreferences();
         await JS.InvokeVoidAsync("lmeMap.clearImported");
     }
     private Task AddProjectMarker() => JS.InvokeVoidAsync("lmeMap.addProjectMarker", PoiName).AsTask();
 
-    private async Task ToggleKmlSheetLayer(ChangeEventArgs args)
+    private async Task ApplyKmlSheetLayerOption()
     {
-        IncludeKmlSheetLayer = (bool?)args.Value == true;
         ShowImportedSheetLayer = IncludeKmlSheetLayer;
+        SaveFlagPreferences();
         await JS.InvokeVoidAsync("lmeMap.setIncludeKmlSheetLayer", IncludeKmlSheetLayer);
         await JS.InvokeVoidAsync("lmeMap.setImportedSheetLayerVisible", ShowImportedSheetLayer);
     }
 
-    private async Task ToggleImportedSheetLayer(ChangeEventArgs args)
+    private Task ApplyImportedSheetLayerVisibility()
     {
-        ShowImportedSheetLayer = (bool?)args.Value == true;
+        SaveFlagPreferences();
-        await JS.InvokeVoidAsync("lmeMap.setImportedSheetLayerVisible", ShowImportedSheetLayer);
+        return JS.InvokeVoidAsync("lmeMap.setImportedSheetLayerVisible", ShowImportedSheetLayer).AsTask();
     }
 
-    private async Task ToggleImportedMeasurements(ChangeEventArgs args)
+    private async Task ApplyImportedMeasurementsVisibility()
     {
-        ShowImportedMeasurements = (bool?)args.Value == true;
+        SaveFlagPreferences();
         await JS.InvokeVoidAsync("lmeMap.setImportedMeasurementsVisible", ShowImportedMeasurements);
     }
 
-    private async Task ToggleDrawingMeasurements(ChangeEventArgs args)
+    private async Task ApplyDrawingMeasurementsVisibility()
     {
-        ShowDrawingMeasurements = (bool?)args.Value == true;
+        SaveFlagPreferences();
         await JS.InvokeVoidAsync("lmeMap.setDrawingMeasurementsVisible", ShowDrawingMeasurements);
     }
 
     private async Task ToggleDrawTools()
     {
         DrawToolsVisible = !DrawToolsVisible;
+        SaveFlagPreferences();
         await JS.InvokeVoidAsync("lmeMap.setDrawToolsVisible", DrawToolsVisible);
 
         if (DrawToolsVisible)
@@ -1166,6 +1180,7 @@
         ShowDrawingMeasurements = options.ShowDrawingMeasurements;
         DrawToolsVisible = options.DrawToolsVisible;
         ShowGpsPosition = options.GpsPositionVisible;
+        ShowSelectedParcels = options.SelectedParcelsVisible;
         TrailEnabled = options.TrailEnabled;
 
         var activeLayers = (options.CadastreLayers ?? []).ToHashSet(StringComparer.Ordinal);
@@ -1173,6 +1188,7 @@
         {
             layer.Enabled = activeLayers.Contains(layer.Key);
         }
+        SaveFlagPreferences();
     }
 
     private async Task DeleteProject()
@@ -1205,9 +1221,9 @@
         }
     }
     private Task CenterOnGps() => JS.InvokeVoidAsync("lmeMap.centerOnGps").AsTask();
-    private async Task ToggleTrail(ChangeEventArgs args)
+    private async Task ApplyTrailOption()
     {
-        TrailEnabled = (bool?)args.Value == true;
+        SaveFlagPreferences();
         await JS.InvokeVoidAsync("lmeMap.toggleTrail", TrailEnabled);
     }
     private async Task ChangeBaseLayer(ChangeEventArgs args)
@@ -1312,9 +1328,87 @@
     private async Task ToggleCadastreLayer(CadastralLayer layer, ChangeEventArgs args)
     {
         layer.Enabled = args.Value is true;
+        SaveFlagPreferences();
         await JS.InvokeVoidAsync("lmeMap.toggleCadastreLayer", layer.Key, layer.Enabled);
     }
 
+    private void LoadFlagPreferences()
+    {
+        IncludeCadastralParcels = GetFlagPreference("include_cadastral_parcels", true);
+        IncludeKmlSheetLayer = GetFlagPreference("include_kml_sheet_layer", false);
+        ShowImportedSheetLayer = GetFlagPreference("show_imported_sheet_layer", false);
+        ShowImportedMeasurements = GetFlagPreference("show_imported_measurements", false);
+        ShowDrawingMeasurements = GetFlagPreference("show_drawing_measurements", true);
+        DrawToolsVisible = GetFlagPreference("draw_tools_visible", false);
+        ShowGpsPosition = GetFlagPreference("show_gps_position", true);
+        ShowSelectedParcels = GetFlagPreference("show_selected_parcels", true);
+        TrailEnabled = GetFlagPreference("trail_enabled", false);
+        ExportImported = GetFlagPreference("export_imported", true);
+        ExportImportedSheets = GetFlagPreference("export_imported_sheets", true);
+        ExportCadastral = GetFlagPreference("export_cadastral", true);
+        ExportDrawings = GetFlagPreference("export_drawings", true);
+        ExportPoi = GetFlagPreference("export_poi", true);
+        ExportTrail = GetFlagPreference("export_trail", true);
+
+        foreach (var layer in CadastralLayers)
+        {
+            layer.Enabled = GetFlagPreference($"cadastre_layer_{layer.Key}", layer.Enabled);
+        }
+    }
+
+    private void SaveFlagPreferences()
+    {
+        SetFlagPreference("include_cadastral_parcels", IncludeCadastralParcels);
+        SetFlagPreference("include_kml_sheet_layer", IncludeKmlSheetLayer);
+        SetFlagPreference("show_imported_sheet_layer", ShowImportedSheetLayer);
+        SetFlagPreference("show_imported_measurements", ShowImportedMeasurements);
+        SetFlagPreference("show_drawing_measurements", ShowDrawingMeasurements);
+        SetFlagPreference("draw_tools_visible", DrawToolsVisible);
+        SetFlagPreference("show_gps_position", ShowGpsPosition);
+        SetFlagPreference("show_selected_parcels", ShowSelectedParcels);
+        SetFlagPreference("trail_enabled", TrailEnabled);
+        SetFlagPreference("export_imported", ExportImported);
+        SetFlagPreference("export_imported_sheets", ExportImportedSheets);
+        SetFlagPreference("export_cadastral", ExportCadastral);
+        SetFlagPreference("export_drawings", ExportDrawings);
+        SetFlagPreference("export_poi", ExportPoi);
+        SetFlagPreference("export_trail", ExportTrail);
+
+        foreach (var layer in CadastralLayers)
+        {
+            SetFlagPreference($"cadastre_layer_{layer.Key}", layer.Enabled);
+        }
+    }
+
+    private async Task ApplyFlagPreferencesToMapAsync()
+    {
+        await JS.InvokeVoidAsync("lmeMap.setIncludeKmlSheetLayer", IncludeKmlSheetLayer);
+        await JS.InvokeVoidAsync("lmeMap.setImportedSheetLayerVisible", ShowImportedSheetLayer);
+        await JS.InvokeVoidAsync("lmeMap.setImportedMeasurementsVisible", ShowImportedMeasurements);
+        await JS.InvokeVoidAsync("lmeMap.setDrawingMeasurementsVisible", ShowDrawingMeasurements);
+        await JS.InvokeVoidAsync("lmeMap.setDrawToolsVisible", DrawToolsVisible);
+        await JS.InvokeVoidAsync("lmeMap.setGpsPositionVisible", ShowGpsPosition);
+        await JS.InvokeVoidAsync("lmeMap.setSelectedParcelsVisible", ShowSelectedParcels);
+        await JS.InvokeVoidAsync("lmeMap.toggleTrail", TrailEnabled);
+
+        foreach (var layer in CadastralLayers)
+        {
+            await JS.InvokeVoidAsync("lmeMap.toggleCadastreLayer", layer.Key, layer.Enabled);
+        }
+    }
+
+    private static bool GetFlagPreference(string name, bool defaultValue) =>
+        Preferences.Default.Get($"{FlagPreferencePrefix}{name}", defaultValue);
+
+    private static void SetFlagPreference(string name, bool value) =>
+        Preferences.Default.Set($"{FlagPreferencePrefix}{name}", value);
+
+    private async Task ApplySelectedParcelsVisibility()
+    {
+        SaveFlagPreferences();
+        await JS.InvokeVoidAsync("lmeMap.setSelectedParcelsVisible", ShowSelectedParcels);
+    }
+
     private async Task ExportCadastralImage()
     {
         ActiveTab = "map";
@@ -1353,6 +1447,7 @@
         public bool ShowDrawingMeasurements { get; init; } = true;
         public bool DrawToolsVisible { get; init; }
         public bool GpsPositionVisible { get; init; } = true;
+        public bool SelectedParcelsVisible { get; init; } = true;
         public bool TrailEnabled { get; init; }
     }
 

LMEMappeCatastaliApp.csproj

@@ -28,8 +28,8 @@
         <ApplicationId>com.companyname.lmemappecatastaliapp</ApplicationId>
 
         <!-- Versions -->
-        <ApplicationDisplayVersion>0.2.14</ApplicationDisplayVersion>
+        <ApplicationDisplayVersion>0.2.17</ApplicationDisplayVersion>
-        <ApplicationVersion>18</ApplicationVersion>
+        <ApplicationVersion>21</ApplicationVersion>
 
         <!-- To develop, package, and publish an app to the Microsoft Store, see: https://aka.ms/MauiTemplateUnpackaged -->
         <WindowsPackageType>None</WindowsPackageType>

Services/AzureMapsService.cs

@@ -13,7 +13,7 @@ public sealed class AzureMapsService
 
     public AzureMapsService()
     {
-        _httpClient.DefaultRequestHeaders.UserAgent.ParseAdd("LMEMappeCatastali/0.2.14");
+        _httpClient.DefaultRequestHeaders.UserAgent.ParseAdd("LMEMappeCatastali/0.2.17");
         _httpClient.DefaultRequestHeaders.Accept.ParseAdd("application/json");
     }
 

Services/NetworkLocationService.cs

@@ -13,7 +13,7 @@ public sealed class NetworkLocationService
 
     public NetworkLocationService()
     {
-        httpClient.DefaultRequestHeaders.UserAgent.ParseAdd("LMEMappeCatastali/0.2.14");
+        httpClient.DefaultRequestHeaders.UserAgent.ParseAdd("LMEMappeCatastali/0.2.17");
     }
 
     public async Task<NetworkLocationSnapshot?> GetApproximateLocationAsync(

wwwroot/js/lme-map.js

@@ -26,6 +26,7 @@ const lmeState = {
     lastAccuracy: 0,
     gpsTrail: null,
     selectedParcelsLayer: null,
+    selectedParcelsVisible: true,
     gpsParcelLayer: null,
     gpsTrailEnabled: false,
     gpsTrailPoints: [],
@@ -50,6 +51,7 @@ window.lmeMap = {
     exportCadastreView,
     closeCadastrePreview,
     clearSelectedParcels,
+    setSelectedParcelsVisible,
     clearMapElements,
     fitImported,
     clearImported,
@@ -132,6 +134,8 @@ function init() {
     });
 
     lmeState.currentBase = lmeState.baseLayers.satellite.addTo(lmeState.map);
+    const importedSheetPane = lmeState.map.createPane("importedSheetPane");
+    importedSheetPane.style.zIndex = "520";
     lmeState.imported = L.featureGroup().addTo(lmeState.map);
     lmeState.importedSheets = L.featureGroup();
     lmeState.drawings = L.featureGroup().addTo(lmeState.map);
@@ -469,23 +473,9 @@ function bindFileImport() {
         try {
             const result = await readGisFile(file);
             const geojson = result.geojson;
-            const parcelLayer = L.geoJSON(geojson, {
+            const parcelLayer = addImportedFeatures(geojson);
-                style: { color: "#22c55e", weight: 3, opacity: 0.95, fillOpacity: 0.18 },
-                pointToLayer: (feature, latlng) => L.circleMarker(latlng, { radius: 7, color: "#22c55e", fillColor: "#ffffff", fillOpacity: 0.9 }),
-                onEachFeature: (feature, layer) => {
-                    const name = feature?.properties?.name || file.name;
-                    layer.bindPopup(`<strong>${escapeHtml(name)}</strong>`);
-                }
-            }).addTo(lmeState.imported);
             const sheetGeojson = result.sheetGeojson || emptyFeatureCollection();
-            const sheetLayer = L.geoJSON(sheetGeojson, {
+            const sheetLayer = addImportedSheetFeatures(sheetGeojson);
-                style: { color: "#15803d", weight: 3, opacity: 0.85, fillOpacity: 0.04, dashArray: "9 7" },
-                pointToLayer: (feature, latlng) => L.circleMarker(latlng, { radius: 6, color: "#15803d", fillOpacity: 0.25 }),
-                onEachFeature: (feature, layer) => {
-                    const name = feature?.properties?.name || "Foglio catastale importato";
-                    layer.bindPopup(`<strong>${escapeHtml(name)}</strong>`);
-                }
-            }).addTo(lmeState.importedSheets);
             applyImportedSheetVisibility();
             fitLayer(geojson.features.length ? parcelLayer : sheetLayer);
             refreshImportedMeasurements();
@@ -901,13 +891,76 @@ function setIncludeKmlSheetLayer(enabled) {
 function setImportedSheetLayerVisible(enabled) {
     migrateMisclassifiedImportedSheets();
     lmeState.importedSheetsVisible = Boolean(enabled);
+    const generated = lmeState.importedSheetsVisible && ensureImportedSheetOutline();
     applyImportedSheetVisibility();
     const count = lmeState.importedSheets?.toGeoJSON()?.features?.length || 0;
     setInfo(lmeState.importedSheetsVisible
-        ? (count ? `Layer del foglio importato visibile (${count} elementi).` : "Il layer del foglio sara visibile quando verra importato.")
+        ? (count
+            ? `${generated ? "Cornice generata dai dati importati" : "Layer del foglio importato visibile"} (${count} elementi).`
+            : "Nessun dato importato da cui ricavare la cornice del foglio.")
         : "Layer del foglio importato nascosto; le particelle restano visibili.");
 }
 
+function ensureImportedSheetOutline() {
+    if (!lmeState.imported || !lmeState.importedSheets) {
+        return false;
+    }
+
+    const currentSheets = lmeState.importedSheets.toGeoJSON();
+    const hasAreaOutline = (currentSheets.features || []).some(feature =>
+        ["Polygon", "MultiPolygon"].includes(feature?.geometry?.type));
+    if (hasAreaOutline) {
+        return false;
+    }
+
+    const imported = lmeState.imported.toGeoJSON();
+    const points = collectGeoJsonCoordinates(imported);
+    if (!points.length) {
+        return false;
+    }
+
+    const bounds = points.reduce((result, point) => ({
+        west: Math.min(result.west, point[0]),
+        south: Math.min(result.south, point[1]),
+        east: Math.max(result.east, point[0]),
+        north: Math.max(result.north, point[1])
+    }), { west: Infinity, south: Infinity, east: -Infinity, north: -Infinity });
+    if (!Number.isFinite(bounds.west)
+        || !Number.isFinite(bounds.south)
+        || bounds.east <= bounds.west
+        || bounds.north <= bounds.south) {
+        return false;
+    }
+
+    const longitudePadding = Math.max((bounds.east - bounds.west) * 0.01, 0.000001);
+    const latitudePadding = Math.max((bounds.north - bounds.south) * 0.01, 0.000001);
+    const west = bounds.west - longitudePadding;
+    const south = bounds.south - latitudePadding;
+    const east = bounds.east + longitudePadding;
+    const north = bounds.north + latitudePadding;
+    addImportedSheetFeatures({
+        type: "FeatureCollection",
+        features: [{
+            type: "Feature",
+            properties: {
+                name: "Cornice del foglio importato",
+                _lmeGeneratedSheetOutline: true
+            },
+            geometry: {
+                type: "Polygon",
+                coordinates: [[
+                    [west, south],
+                    [east, south],
+                    [east, north],
+                    [west, north],
+                    [west, south]
+                ]]
+            }
+        }]
+    });
+    return true;
+}
+
 function migrateMisclassifiedImportedSheets() {
     if (!lmeState.imported || !lmeState.importedSheets) {
         return 0;
@@ -942,11 +995,14 @@ function addImportedFeatures(geojson) {
 
 function addImportedSheetFeatures(geojson) {
     return L.geoJSON(geojson || emptyFeatureCollection(), {
-        style: { color: "#15803d", weight: 3, opacity: 0.85, fillOpacity: 0.04, dashArray: "9 7" },
+        pane: "importedSheetPane",
+        style: { color: "#f59e0b", weight: 4, opacity: 1, fillOpacity: 0.03, dashArray: "10 6" },
         pointToLayer: (feature, latlng) => L.circleMarker(latlng, {
-            radius: 6,
+            pane: "importedSheetPane",
-            color: "#15803d",
+            radius: 7,
-            fillOpacity: 0.25
+            color: "#f59e0b",
+            fillColor: "#ffffff",
+            fillOpacity: 0.85
         }),
         onEachFeature: bindStoredFeaturePopup
     }).addTo(lmeState.importedSheets);
@@ -960,8 +1016,7 @@ function applyImportedSheetVisibility() {
         if (!lmeState.map.hasLayer(lmeState.importedSheets)) {
             lmeState.importedSheets.addTo(lmeState.map);
         }
-        lmeState.importedSheets.bringToBack();
+        lmeState.importedSheets.bringToFront();
-        lmeState.imported.bringToFront();
         return;
     }
     if (lmeState.map.hasLayer(lmeState.importedSheets)) {
@@ -1578,6 +1633,9 @@ function loadProjectSnapshot(raw, projectName) {
         lmeState.importedSheetsVisible = projectDisplayOptions
             ? Boolean(projectDisplayOptions.importedSheetsVisible)
             : data.schemaVersion >= 2 && Boolean(data.importedSheetsVisible);
+        if (lmeState.importedSheetsVisible) {
+            ensureImportedSheetOutline();
+        }
         applyImportedSheetVisibility();
         L.geoJSON(data.selectedParcels || emptyFeatureCollection(), {
             style: { color: "#ef4444", weight: 4, opacity: 1, fillColor: "#fbbf24", fillOpacity: 0.26 },
@@ -1645,6 +1703,7 @@ function captureDisplayOptions() {
         showDrawingMeasurements: lmeState.showDrawingMeasurements,
         drawToolsVisible: Boolean(lmeState.drawControl),
         gpsPositionVisible: lmeState.gpsPositionVisible,
+        selectedParcelsVisible: lmeState.selectedParcelsVisible,
         trailEnabled: lmeState.gpsTrailEnabled
     };
 }
@@ -1677,6 +1736,7 @@ function applyProjectDisplayOptions(options) {
         setBaseLayer(options.baseLayer);
     }
     setGpsPositionVisible(options.gpsPositionVisible !== false);
+    setSelectedParcelsVisible(options.selectedParcelsVisible !== false);
     toggleTrail(Boolean(options.trailEnabled));
     setDrawToolsVisible(Boolean(options.drawToolsVisible));
 }
@@ -2010,6 +2070,30 @@ function clearSelectedParcels() {
     setInfo(count ? `${count} particelle selezionate rimosse.` : "Non ci sono particelle selezionate da rimuovere.");
 }
 
+function setSelectedParcelsVisible(enabled) {
+    lmeState.selectedParcelsVisible = Boolean(enabled);
+    if (!lmeState.map || !lmeState.selectedParcelsLayer) {
+        return;
+    }
+
+    if (lmeState.selectedParcelsVisible) {
+        if (!lmeState.map.hasLayer(lmeState.selectedParcelsLayer)) {
+            lmeState.selectedParcelsLayer.addTo(lmeState.map);
+        }
+        lmeState.selectedParcelsLayer.bringToFront();
+        const count = lmeState.selectedParcelsLayer.toGeoJSON().features?.length || 0;
+        setInfo(count
+            ? `${count} particelle selezionate visibili.`
+            : "Nessuna particella selezionata da mostrare.");
+        return;
+    }
+
+    if (lmeState.map.hasLayer(lmeState.selectedParcelsLayer)) {
+        lmeState.map.removeLayer(lmeState.selectedParcelsLayer);
+    }
+    setInfo("Particelle selezionate nascoste; i dati restano nel progetto.");
+}
+
 function clearMapElements() {
     const count = lmeState.selectedParcelsLayer.getLayers().length
         + lmeState.gpsParcelLayer.getLayers().length