Continue Overture support: POIs, Places, Airports (#579)

* Added some Oakland-specific visual test areas

* Add Overture Airport Runways to Roads Layer

Add Overture `theme=base / type=infrastructure / subtype=airport` runway and
taxiway linestrings to the roads layer, matching OSM parity where
`aeroway=runway` appears with `kind=aeroway`, `kind_detail=runway`, `min_zoom=9`.

- Add `overtureAerowayKindsIndex` mapping Overture class=runway/taxiway/taxilane
  to kind=aeroway with appropriate kind_detail values
- Extend `processOverture()` with a new branch for base/infrastructure features,
  emitting line geometries at min_zoom=9 (runway) or min_zoom=10 (taxiway)
- Add two Overture unit tests: kind_aeroway_fromRunwayClass and
  kind_aeroway_fromTaxiwayClass

* Fix Overture places at low zoom levels; use real Overture UUIDs in tests

- Fix populationFallback in processOverture: use 0 when population > 0,
  so cities/towns with real population data no longer get forced into
  fallback zoom levels (was hardcoded to 1, causing city minZoom=8
  instead of 7)
- Add wikidata lookup block to processOverture mirroring the OSM path,
  so entries in places.csv (Q62, Q16553, Q169943, etc.) now override
  minZoom and populationRank for Overture locality features
- Output wikidata attribute on Overture features that have it
- Add failing-first tests for SF (Q62→minZoom=2), San Jose (Q16553→4),
  San Mateo (Q169943→6), Saratoga (Q927163→7, pop present no fallback)
- Update testOaklandCity: min_zoom 9→8 (population present, no fallback)
- Use real Overture UUIDs from Oakland-visualtests.parquet in all new tests

* Use Overture confidence for POI filtering and rendering priority

Drop features below confidence 0.65 (junk tier: ~127k features dominated
by real estate listings, beauty salons, ATMs from uncertain sources).
Within the remaining features, use confidence to break sort key ties so
higher-confidence POIs win label collision resolution at the same zoom.

Sort key: minZoom * 1000 - (int)(confidence * 100), so confidence=0.99
scores 99 points lower (higher priority) than confidence=0.65.

Tests updated: websiteQid_ineligibleCategory_dropped and
websiteQid_lowConfidence_dropped now correctly expect zero features.
kind_nationalPark_fromBasicCategory switched to Pinnacles National Park
(4d619bc0, confidence=0.917) since the previous Alcatraz fixture
(814b8a78, confidence=0.639) falls below the new cutoff.

Prompt: "Let's bring more Overture confidence into POI rendering: make
higher-confidence POIs higher rendering priority, and simply omit ones
below 0.65 (junk tier)"

* Extract getZoomsPops() to remove duplicated zoom/rank logic in Places.java

Author: migurski

CHANGELOG.md

@@ -1,3 +1,7 @@
+Tiles 4.14.4
+------
+- Continue expanding Overture support to lower zoom levels with Places and some infrastructure [#579]
+
 Tiles 4.14.3
 ------
 - Fix OSM place selection regression at zoom=7 [#576]

app/src/examples.json

@@ -1,4 +1,116 @@
 [
+  {
+    "name": "oakland-downtown-z4",
+    "description": "Area around downtown Oakland",
+    "tags": ["oakland", "oakland-downtown"],
+    "center": [-122.21885, 37.71324],
+    "zoom": 4
+  },
+  {
+    "name": "oakland-downtown-z5",
+    "description": "Area around downtown Oakland",
+    "tags": ["oakland", "oakland-downtown"],
+    "center": [-122.21885, 37.71324],
+    "zoom": 5
+  },
+  {
+    "name": "oakland-downtown-z6",
+    "description": "Area around downtown Oakland",
+    "tags": ["oakland", "oakland-downtown"],
+    "center": [-122.21885, 37.71324],
+    "zoom": 6
+  },
+  {
+    "name": "oakland-downtown-z7",
+    "description": "Area around downtown Oakland",
+    "tags": ["oakland", "oakland-downtown"],
+    "center": [-122.2713, 37.8043],
+    "zoom": 7
+  },
+  {
+    "name": "oakland-downtown-z8",
+    "description": "Area around downtown Oakland",
+    "tags": ["oakland", "oakland-downtown"],
+    "center": [-122.21885, 37.71324],
+    "zoom": 8
+  },
+  {
+    "name": "oakland-downtown-z9",
+    "description": "Area around downtown Oakland",
+    "tags": ["oakland", "oakland-downtown"],
+    "center": [-122.2713, 37.8043],
+    "zoom": 9
+  },
+  {
+    "name": "oakland-downtown-z10",
+    "description": "Area around downtown Oakland",
+    "tags": ["oakland", "oakland-downtown"],
+    "center": [-122.2713, 37.8043],
+    "zoom": 10
+  },
+  {
+    "name": "oakland-downtown-z11",
+    "description": "Area around downtown Oakland",
+    "tags": ["oakland", "oakland-downtown"],
+    "center": [-122.2713, 37.8043],
+    "zoom": 11
+  },
+  {
+    "name": "oakland-airport-z15",
+    "description": "Area around Oakland Airport terminals",
+    "tags": ["oakland", "oakland-airport"],
+    "center": [-122.21885, 37.71324],
+    "zoom": 15
+  },
+  {
+    "name": "oakland-airport-z14",
+    "description": "Area around Oakland Airport terminals",
+    "tags": ["oakland", "oakland-airport"],
+    "center": [-122.21885, 37.71324],
+    "zoom": 14
+  },
+  {
+    "name": "oakland-airport-z13",
+    "description": "Area around Oakland Airport terminals",
+    "tags": ["oakland", "oakland-airport"],
+    "center": [-122.21885, 37.71324],
+    "zoom": 13
+  },
+  {
+    "name": "oakland-airport-z12",
+    "description": "Area around Oakland Airport terminals",
+    "tags": ["oakland", "oakland-airport"],
+    "center": [-122.21885, 37.71324],
+    "zoom": 12
+  },
+  {
+    "name": "oakland-lake-merritt-z15",
+    "description": "Area around Oakland Lake Merritt",
+    "tags": ["oakland", "oakland-lake-merritt"],
+    "center": [-122.26467, 37.80661],
+    "zoom": 15
+  },
+  {
+    "name": "oakland-lake-merritt-z14",
+    "description": "Area around Oakland Lake Merritt",
+    "tags": ["oakland", "oakland-lake-merritt"],
+    "center": [-122.26467, 37.80661],
+    "zoom": 14
+  },
+  {
+    "name": "oakland-lake-merritt-z13",
+    "description": "Area around Oakland Lake Merritt",
+    "tags": ["oakland", "oakland-lake-merritt"],
+    "center": [-122.26467, 37.80661],
+    "zoom": 13
+  },
+  {
+    "name": "oakland-lake-merritt-z12",
+    "description": "Area around Oakland Lake Merritt",
+    "tags": ["oakland", "oakland-lake-merritt"],
+    "center": [-122.26467, 37.80661],
+    "zoom": 12
+  },
   {
     "name": "taiwan-z8",
     "description": "Compare the appearance of highways",

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

@@ -133,7 +133,7 @@ public String description() {
 
   @Override
   public String version() {
-    return "4.14.3";
+    return "4.14.4";
   }
 
   @Override

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

@@ -269,42 +269,19 @@ public void processOsm(SourceFeature sf, FeatureCollector features) {
       return;
     }
 
-    Integer minZoom;
-    Integer maxZoom;
-    Integer kindRank;
-
     var computedTags = makeTagMap(kind, kindDetail, population, populationFallback);
     var sf2 = new Matcher.SourceFeatureWithComputedTags(sf, computedTags);
-    var zoomMatches = zoomsIndex.getMatches(sf2);
 
     // Use populationFallback for sorting if no real population
     if (population == 0 && populationFallback > 0) {
       population = populationFallback;
     }
 
-    minZoom = getInteger(sf2, zoomMatches, "pm:minzoom", 99);
-    maxZoom = getInteger(sf2, zoomMatches, "pm:maxzoom", 99);
-    kindRank = getInteger(sf2, zoomMatches, "pm:kindRank", 99);
-
-    int populationRank = 0;
-
-    for (int i = 0; i < popBreaks.length; i++) {
-      if (population >= popBreaks[i]) {
-        populationRank = i + 1;
-      }
-    }
-
-    if (WIKIDATA_CONFIGS.containsKey(sf.getString("wikidata"))) {
-      var wikidataConfig = WIKIDATA_CONFIGS.get(sf.getString("wikidata"));
-      if (kind.equals("country") || kind.equals("region")) {
-        minZoom = wikidataConfig.minZoom();
-        maxZoom = wikidataConfig.maxZoom();
-      }
-      if (kind.equals("locality")) {
-        minZoom = wikidataConfig.minZoom();
-        populationRank = wikidataConfig.rankMax();
-      }
-    }
+    var zp = getZoomsPops(sf2, kind, population);
+    int minZoom = zp.minZoom();
+    int maxZoom = zp.maxZoom();
+    int kindRank = zp.kindRank();
+    int populationRank = zp.populationRank();
 
     var feat = features.point(this.name())
       .setId(FeatureId.create(sf))
@@ -379,32 +356,19 @@ public void processOverture(SourceFeature sf, FeatureCollector features) {
       }
     }
 
-    // Overture always uses populationFallback for zoom calculations to get consistent behavior
-    // This ensures Overture places get the higher minzoom levels (8 for city, 9 for town, etc)
-    Integer populationFallback = 1; // Marker value to trigger fallback zoom levels
-
-    Integer minZoom;
-    Integer maxZoom;
-    Integer kindRank;
+    Integer populationFallback = (population > 0) ? 0 : 1;
 
     var computedTags = makeTagMap(kind, kindDetail, population, populationFallback);
     var sf2 = new Matcher.SourceFeatureWithComputedTags(sf, computedTags);
-    var zoomMatches = zoomsIndex.getMatches(sf2);
-
-    minZoom = getInteger(sf2, zoomMatches, "pm:minzoom", 99);
-    maxZoom = getInteger(sf2, zoomMatches, "pm:maxzoom", 99);
-    kindRank = getInteger(sf2, zoomMatches, "pm:kindRank", 99);
 
     // Extract name
     String name = sf.getString("names.primary");
 
-    int populationRank = 0;
-
-    for (int i = 0; i < popBreaks.length; i++) {
-      if (population >= popBreaks[i]) {
-        populationRank = i + 1;
-      }
-    }
+    var zp = getZoomsPops(sf2, kind, population);
+    int minZoom = zp.minZoom();
+    int maxZoom = zp.maxZoom();
+    int kindRank = zp.kindRank();
+    int populationRank = zp.populationRank();
 
     var feat = features.point(this.name())
       .setAttr("kind", kind)
@@ -418,6 +382,10 @@ public void processOverture(SourceFeature sf, FeatureCollector features) {
       feat.setAttr("kind_detail", kindDetail);
     }
 
+    if (sf.hasTag("wikidata")) {
+      feat.setAttr("wikidata", sf.getString("wikidata"));
+    }
+
     int sortKey = getSortKey(minZoom, kindRank, population, name);
     feat.setSortKey(sortKey);
     feat.setAttr("sort_key", sortKey);
@@ -428,6 +396,36 @@ public void processOverture(SourceFeature sf, FeatureCollector features) {
     feat.setBufferPixelOverrides(ZoomFunction.maxZoom(12, 64));
   }
 
+  record ZoomsPops(int minZoom, int maxZoom, int kindRank, int populationRank) {}
+
+  private ZoomsPops getZoomsPops(Matcher.SourceFeatureWithComputedTags sf2, String kind, int population) {
+    var zoomMatches = zoomsIndex.getMatches(sf2);
+    int minZoom = getInteger(sf2, zoomMatches, "pm:minzoom", 99);
+    int maxZoom = getInteger(sf2, zoomMatches, "pm:maxzoom", 99);
+    int kindRank = getInteger(sf2, zoomMatches, "pm:kindRank", 99);
+
+    int populationRank = 0;
+    for (int i = 0; i < popBreaks.length; i++) {
+      if (population >= popBreaks[i]) {
+        populationRank = i + 1;
+      }
+    }
+
+    if (WIKIDATA_CONFIGS.containsKey(sf2.getString("wikidata"))) {
+      var wikidataConfig = WIKIDATA_CONFIGS.get(sf2.getString("wikidata"));
+      if (kind.equals("country") || kind.equals("region")) {
+        minZoom = wikidataConfig.minZoom();
+        maxZoom = wikidataConfig.maxZoom();
+      }
+      if (kind.equals("locality")) {
+        minZoom = wikidataConfig.minZoom();
+        populationRank = wikidataConfig.rankMax();
+      }
+    }
+
+    return new ZoomsPops(minZoom, maxZoom, kindRank, populationRank);
+  }
+
   @Override
   public List<VectorTile.Feature> postProcess(int zoom, List<VectorTile.Feature> items) {
     return items;

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

@@ -562,6 +562,13 @@ public void processOverture(SourceFeature sf, FeatureCollector features) {
     if (kind.equals("pm:undefined"))
       return;
 
+    // Drop low-confidence features. Below 0.65, features are dominated by uncertain data:
+    // real estate listings, auto repair, beauty salons, ATMs from low-quality sources.
+    double confidence = sf.getTag("confidence")instanceof Number n ? n.doubleValue() : 0.0;
+    if (confidence < 0.65) {
+      return;
+    }
+
     // QRank may override minZoom entirely
     String wikidata = sf.getString("wikidata");
     long qrank = (wikidata != null) ? qrankDb.get(wikidata) : 0;
@@ -581,6 +588,10 @@ public void processOverture(SourceFeature sf, FeatureCollector features) {
 
     String name = sf.getString("names.primary");
 
+    // Sort key: lower = higher rendering priority. Within the same minZoom bucket,
+    // higher confidence wins (subtract confidence*100 so 0.99 → -99, 0.65 → -65).
+    int sortKey = minZoom * 1000 - (int) (confidence * 100);
+
     features.point(this.name())
       // all POIs should receive their IDs at all zooms
       // (there is no merging of POIs like with lines and polygons in other layers)
@@ -593,7 +604,8 @@ public void processOverture(SourceFeature sf, FeatureCollector features) {
       .setAttr("min_zoom", minZoom + 1)
       //
       .setBufferPixels(8)
-      .setZoomRange(Math.min(minZoom, 15), 15);
+      .setZoomRange(Math.min(minZoom, 15), 15)
+      .setSortKey(sortKey);
   }
 
   @Override

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

@@ -219,6 +219,17 @@ public Roads(CountryCoder countryCoder) {
 
     )).index();
 
+  private static final MultiExpression.Index<Map<String, Object>> overtureAerowayKindsIndex =
+    MultiExpression.ofOrdered(List.of(
+      rule(use("pm:kind", "pm:undefined"), use("pm:kindDetail", "pm:undefined"), use("pm:highway", "pm:undefined")),
+      rule(with("class", "runway"), use("pm:kind", "aeroway"), use("pm:kindDetail", "runway"),
+        use("pm:highway", "aeroway")),
+      rule(with("class", "taxiway"), use("pm:kind", "aeroway"), use("pm:kindDetail", "taxiway"),
+        use("pm:highway", "aeroway")),
+      rule(with("class", "taxilane"), use("pm:kind", "aeroway"), use("pm:kindDetail", "taxiway"),
+        use("pm:highway", "aeroway"))
+    )).index();
+
   // Protomaps kind/kind_detail to min_zoom mapping
 
   private static final MultiExpression.Index<Map<String, Object>> highwayZoomsIndex = MultiExpression.ofOrdered(List.of(
@@ -505,6 +516,30 @@ private static class OvertureSegmentProperties {
   }
 
   public void processOverture(SourceFeature sf, FeatureCollector features) {
+    if ("base".equals(sf.getString("theme")) && "infrastructure".equals(sf.getString("type"))) {
+      if (!"airport".equals(sf.getString("subtype")))
+        return;
+
+      List<Map<String, Object>> kindMatches = overtureAerowayKindsIndex.getMatches(sf);
+      String kind = getString(sf, kindMatches, "pm:kind", "pm:undefined");
+      String kindDetail = getString(sf, kindMatches, "pm:kindDetail", "pm:undefined");
+      if ("pm:undefined".equals(kind))
+        return;
+
+      int minZoom = "runway".equals(kindDetail) ? 9 : 10;
+      String name = sf.getString("names.primary");
+
+      if (!sf.canBePolygon()) {
+        try {
+          LineString line = (LineString) sf.latLonGeometry();
+          emitOvertureFeature(features, sf, line, kind, kindDetail, name, "aeroway", minZoom,
+            new OvertureSegmentProperties());
+        } catch (GeometryException e) {
+          /* skip */ }
+      }
+      return;
+    }
+
     // Filter by type field - Overture transportation theme
     if (!"transportation".equals(sf.getString("theme"))) {
       return;