From 62795c673d6d21dbfea7a84233a87293d87a6aa7 Mon Sep 17 00:00:00 2001
From: Robin Hawkes <rob.hawkes@gmail.com>
Date: Fri, 2 Sep 2016 16:24:34 +0100
Subject: [PATCH] Clean up memory footprint after geometry is created

---
 src/layer/GeoJSONWorkerLayer.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/layer/GeoJSONWorkerLayer.js b/src/layer/GeoJSONWorkerLayer.js
index c34e5c6..a308b07 100644
--- a/src/layer/GeoJSONWorkerLayer.js
+++ b/src/layer/GeoJSONWorkerLayer.js
@@ -225,6 +225,11 @@ class GeoJSONWorkerLayer extends Layer {
           this.add(this._polygonMesh);
         }
 
+        // Clean up
+        results.attributes = null;
+        results.flats = null;
+        results = null;
+
         resolve();
       });
     });