fix(sensor-placement): stabilize engineering drawing export

Render the OpenLayers basemap at the final A3 map-box resolution with pixelRatio 1, carry provider attribution into the drawing, and keep the linework/basemap export path covered by regression tests.

src/components/olmap/core/Controls/BaseLayers.test.ts

@@ -16,24 +16,38 @@ jest.mock("ol/layer/Tile.js", () => ({
   __esModule: true,
   default: class MockTileLayer {
     private readonly source: unknown;
+    private readonly properties = new Map<string, unknown>();
     constructor(options: any) {
       this.source = options.source;
     }
     getSource() {
       return this.source;
     }
+    set(key: string, value: unknown) {
+      this.properties.set(key, value);
+    }
+    get(key: string) {
+      return this.properties.get(key);
+    }
   },
 }));
 jest.mock("ol/layer/Group", () => ({
   __esModule: true,
   default: class MockGroup {
     private readonly layers: unknown[];
+    private readonly properties = new Map<string, unknown>();
     constructor(options: any) {
       this.layers = options.layers;
     }
     getLayers() {
       return { getArray: () => this.layers };
     }
+    set(key: string, value: unknown) {
+      this.properties.set(key, value);
+    }
+    get(key: string) {
+      return this.properties.get(key);
+    }
   },
 }));
 
@@ -70,6 +84,7 @@ describe("base layer resources", () => {
       expect(getLeafSources(entry.layer)).toEqual(
         getLeafSources(compare[index].layer),
       );
+      expect(entry.layer.get("exportAttribution")).toBe(entry.attribution);
     });
   });
 });

src/components/olmap/core/Controls/BaseLayers.tsx

@@ -18,16 +18,42 @@ import { markMapResourcePersistent } from "../mapLifecycle";
 
 const INITIAL_LAYER = "mapbox-light";
 const BASE_LAYER_METADATA = [
-  { id: "mapbox-light", name: "默认地图", img: mapboxLight.src },
-  { id: "mapbox-satellite", name: "卫星地图", img: mapboxSatellite.src },
+  {
+    id: "mapbox-light",
+    name: "默认地图",
+    img: mapboxLight.src,
+    attribution: "© Mapbox © OpenStreetMap",
+  },
+  {
+    id: "mapbox-satellite",
+    name: "卫星地图",
+    img: mapboxSatellite.src,
+    attribution: "© Mapbox",
+  },
   {
     id: "mapbox-satellite-streets",
     name: "卫星街道地图",
     img: mapboxSatelliteStreet.src,
+    attribution: "© Mapbox © OpenStreetMap",
+  },
+  {
+    id: "mapbox-streets",
+    name: "街道地图",
+    img: mapboxStreets.src,
+    attribution: "© Mapbox © OpenStreetMap",
+  },
+  {
+    id: "tianditu-vector",
+    name: "天地图矢量",
+    img: mapboxOutdoors.src,
+    attribution: "© 天地图",
+  },
+  {
+    id: "tianditu-image",
+    name: "天地图影像",
+    img: mapboxSatellite.src,
+    attribution: "© 天地图",
   },
-  { id: "mapbox-streets", name: "街道地图", img: mapboxStreets.src },
-  { id: "tianditu-vector", name: "天地图矢量", img: mapboxOutdoors.src },
-  { id: "tianditu-image", name: "天地图影像", img: mapboxSatellite.src },
 ] as const;
 
 const createTileSource = (url: string, attributions: string) =>
@@ -123,10 +149,11 @@ export const createBaseLayerEntries = (sources: BaseLayerSources) => {
         ],
       }),
     },
-  ].map((entry) => ({
-    ...entry,
-    layer: markMapResourcePersistent(entry.layer),
-  }));
+  ].map((entry) => {
+    const layer = markMapResourcePersistent(entry.layer);
+    layer.set("exportAttribution", entry.attribution);
+    return { ...entry, layer };
+  });
 };
 
 const BaseLayers: React.FC = () => {