add daylight landcover to tileset [#154] (#228)

* add daylight landcover to tileset [#154]
* Use geopackage mirror of daylight dataset from https://daylightmap.org/2023/10/11/landcover.html
* remap daylight classes to tilezen-like kinds
* tiles 3.5.0, changelog

Author: bdon

CHANGELOG.md

@@ -1,3 +1,7 @@
+Tiles v3.5.0
+------
+- Add Daylight Landcover from zooms 0-7. [#154]
+
 Tiles v3.4.1
 ------
 - Improve boundaries generalization [#200]

tiles/src/main/java/com/protomaps/basemap/Basemap.java

@@ -8,6 +8,7 @@
 import com.protomaps.basemap.layers.Boundaries;
 import com.protomaps.basemap.layers.Buildings;
 import com.protomaps.basemap.layers.Earth;
+import com.protomaps.basemap.layers.Landcover;
 import com.protomaps.basemap.layers.Landuse;
 import com.protomaps.basemap.layers.Natural;
 import com.protomaps.basemap.layers.PhysicalLine;
@@ -37,6 +38,10 @@ public Basemap(NaturalEarthDb naturalEarthDb, QrankDb qrankDb) {
     registerHandler(landuse);
     registerSourceHandler("osm", landuse);
 
+    var landcover = new Landcover();
+    registerHandler(landcover);
+    registerSourceHandler("landcover", landcover::processLandcover);
+
     var natural = new Natural();
     registerHandler(natural);
     registerSourceHandler("osm", natural);
@@ -91,7 +96,7 @@ public String description() {
 
   @Override
   public String version() {
-    return "3.4.1";
+    return "3.5.0";
   }
 
   @Override
@@ -127,7 +132,9 @@ static void run(Arguments args) throws Exception {
       .addShapefileSource("osm_water", sourcesDir.resolve("water-polygons-split-3857.zip"),
         "https://osmdata.openstreetmap.de/download/water-polygons-split-3857.zip")
       .addShapefileSource("osm_land", sourcesDir.resolve("land-polygons-split-3857.zip"),
-        "https://osmdata.openstreetmap.de/download/land-polygons-split-3857.zip");
+        "https://osmdata.openstreetmap.de/download/land-polygons-split-3857.zip")
+      .addGeoPackageSource("landcover", sourcesDir.resolve("daylight-landcover.gpkg"),
+        "https://r2-public.protomaps.com/datasets/daylight-landcover.gpkg");
 
     //    Downloader.create(planetiler.config()).add("ne", neUrl, nePath)
     //      .add("qrank", "https://qrank.wmcloud.org/download/qrank.csv.gz", sourcesDir.resolve("qrank.csv.gz")).run();

tiles/src/main/java/com/protomaps/basemap/layers/Landcover.java

@@ -0,0 +1,36 @@
+package com.protomaps.basemap.layers;
+
+import com.onthegomap.planetiler.FeatureCollector;
+import com.onthegomap.planetiler.ForwardingProfile;
+import com.onthegomap.planetiler.VectorTile;
+import com.onthegomap.planetiler.geo.GeometryException;
+import com.onthegomap.planetiler.reader.SourceFeature;
+import com.protomaps.basemap.feature.FeatureId;
+import java.util.List;
+import java.util.Map;
+
+public class Landcover implements ForwardingProfile.FeaturePostProcessor {
+
+  static final Map<String, String> kindMapping = Map.of("urban", "urban_area", "crop", "farmland", "grass", "grassland",
+    "trees", "forest", "snow", "glacier", "shrub", "scrub", "barren", "barren");
+
+  public void processLandcover(SourceFeature sf, FeatureCollector features) {
+    String kind = kindMapping.getOrDefault(sf.getString("class"), "unknown");
+
+    features.polygon(this.name())
+      .setId(FeatureId.create(sf))
+      .setAttr("pmap:kind", kind)
+      .setZoomRange(0, 7)
+      .setMinPixelSize(0.0);
+  }
+
+  @Override
+  public String name() {
+    return "landcover";
+  }
+
+  @Override
+  public List<VectorTile.Feature> postProcess(int zoom, List<VectorTile.Feature> items) throws GeometryException {
+    return items;
+  }
+}

tiles/src/test/java/com/protomaps/basemap/layers/LandcoverTest.java

@@ -0,0 +1,35 @@
+package com.protomaps.basemap.layers;
+
+import static com.onthegomap.planetiler.TestUtils.newPolygon;
+
+import com.onthegomap.planetiler.reader.SimpleFeature;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.CsvSource;
+
+class LandcoverTest extends LayerTest {
+
+  @ParameterizedTest
+  @CsvSource(value = {
+    "urban,urban_area",
+    "crop,farmland",
+    "grass,grassland",
+    "trees,forest",
+    "snow,glacier",
+    "shrub,scrub",
+    "barren,barren"
+  })
+  void simple(String daylightClassString, String expectedString) {
+    assertFeatures(7,
+      List.of(Map.of("pmap:kind", expectedString)),
+      process(SimpleFeature.create(
+        newPolygon(0, 0, 0, 1, 1, 1, 0, 0),
+        new HashMap<>(Map.of("class", daylightClassString)),
+        "landcover",
+        null,
+        0
+      )));
+  }
+}