Go back to previous algorithm

mapbox · Oct 29, 2019 · 09dd98d · 09dd98d
1 parent 86139df
commit 09dd98d
Showing 1 changed file with 16 additions and 8 deletions.
diff --git a/src/render/painter.js b/src/render/painter.js
@@ -432,16 +432,24 @@ class Painter {
 
         if (this.options.showTileBoundaries) {
             //Use source with highest maxzoom
-            let maxZoomSourceCache;
-            for (const source in this.style.sourceCaches) {
-                const cache = this.style.sourceCaches[source];
-                if (!maxZoomSourceCache || cache._source.maxzoom > maxZoomSourceCache._source.maxZoom) {
-                    maxZoomSourceCache = cache;
+            let selectedSource;
+            let sourceCache;
+            const layers = values(this.style._layers);
+
+            layers.forEach((layer) => {
+                if (layer.source && !layer.isHidden(this.transform.zoom)) {
+                    if (layer.source !== (sourceCache && sourceCache.id)) {
+                        sourceCache = this.style.sourceCaches[layer.source];
+                    }
+
+                    if (!selectedSource || (selectedSource.getSource().maxzoom < sourceCache.getSource().maxzoom)) {
+                        selectedSource = sourceCache;
+                    }
                 }
-            }
+            });
 
-            if (maxZoomSourceCache) {
-                draw.debug(this, maxZoomSourceCache, maxZoomSourceCache.getVisibleCoordinates());
+            if (selectedSource) {
+                draw.debug(this, selectedSource, selectedSource.getVisibleCoordinates());
             }
         }