Add US Public Land (national park/forest) layers

2023-07-28 13:15:45 -05:00 · 2023-07-28 13:15:45 -05:00 · eed4688c3b
commit eed4688c3b
parent 354d952567
3 changed files with 75 additions and 0 deletions
--- a/layers/national-land/index.js
+++ b/layers/national-land/index.js
@ -0,0 +1,51 @@
+import GeoJSON from 'ol/format/GeoJSON.js';
+import VectorLayer from 'ol/layer/Vector.js';
+import VectorSource from 'ol/source/Vector.js';
+
+import nationalParks from './nps_boundary.geojson?url';
+import nationalForests from './us-national-forests.geojson?url';
+
+import { Fill, Stroke, Style, Text } from 'ol/style.js';
+
+function style(feature){
+    return new Style({
+        text: new Text({
+            text: feature.get('FORESTNAME') || (feature.get('UNIT_NAME') + " National Park"),
+        }),
+        fill: new Fill({
+            color: 'rgba(255,255,255,0.4)',
+        }),
+        stroke: new Stroke({
+            color: '#008800',
+            width: 1.25,
+        }),
+    });
+}
+
+const layers = {
+    name: "US Public Land",
+    layers: [
+        {
+            name: "National Parks",
+            layer: new VectorLayer({
+                source: new VectorSource({
+                    url: nationalParks,
+                    format: new GeoJSON(),
+                }),
+                style: style,
+            }),
+        },
+        {
+            name: "National Forests",
+            layer: new VectorLayer({
+                source: new VectorSource({
+                    url: nationalForests,
+                    format: new GeoJSON(),
+                }),
+                style: style,
+            }),
+        },
+    ],
+};
+
+export default layers;