Add US Public Land (national park/forest) layers

layers/index.js

@@ -9,6 +9,7 @@ import bikepackingLayer from './bikepacking/layer.js';
 import chains from './chains/index.js';
 import census_bureau from './census-bureau/index.js';
 import states from './states/index.js';
+import national_land from './national-land/index.js';
 
 const layerCategories = [
     { // Base maps
@@ -75,6 +76,7 @@ const layerCategories = [
     chains,
     census_bureau,
     states,
+    national_land,
 ];
 
 export default layerCategories;

layers/national-land/get_data.sh

@@ -0,0 +1,22 @@
+#!/bin/sh
+
+curl --silent --output nps_boundary_geojson.zip http://gstore.unm.edu/apps/rgisarchive/datasets/7bbe8af5-029b-4adf-b06c-134f0dd57226/nps_boundary.derived.geojson
+unzip nps_boundary_geojson.zip nps_boundary.geojson
+rm nps_boundary_geojson.zip
+
+# for resolution in 20m 5m; do
+#     curl --silent --remote-name https://www2.census.gov/geo/tiger/GENZ2022/shp/cb_2022_us_county_${resolution}.zip
+#     unzip cb_2022_us_county_${resolution}.zip
+#     ogr2ogr -f GeoJSON us-counties-${resolution}.geojson cb_2022_us_county_${resolution}.shp
+#     sed -i '/^"crs":/d' us-counties-${resolution}.geojson # TODO: handle this projection properly
+#     rm cb_2022_us_county_${resolution}.*
+#     # python cleanup_data.py us-counties-${resolution}.geojson # Only needed for KML files
+# done
+
+# https://data.fs.usda.gov/geodata/edw/datasets.php?xmlKeyword=Original+Proclaimed+National+Forests
+curl --silent --remote-name https://data.fs.usda.gov/geodata/edw/edw_resources/shp/S_USA.ProclaimedForest.zip
+unzip S_USA.ProclaimedForest.zip
+ogr2ogr -f GeoJSON us-national-forests.geojson S_USA.ProclaimedForest.shp
+sed -i '/^"crs":/d' us-national-forests.geojson # TODO: handle this projection properly
+rm S_USA.ProclaimedForest.*
+# TODO: some kind of cleanup to save space?

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;