From cfc00f348b4cdc66488e56a328b1aa7488ec8a98 Mon Sep 17 00:00:00 2001
From: Tom Russell <tomalrussell@gmail.com>
Date: Sat, 27 Apr 2019 13:36:17 +0100
Subject: [PATCH] Brief header note on tile.tileserver

---
 app/src/tiles/tileserver.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/app/src/tiles/tileserver.js b/app/src/tiles/tileserver.js
index d60298e0..b64b0c84 100644
--- a/app/src/tiles/tileserver.js
+++ b/app/src/tiles/tileserver.js
@@ -1,5 +1,8 @@
 /**
- * Tileserver routes for Express app
+ * Tileserver
+ * - routes for Express app
+ * - stitch tiles above a certain zoom level (compositing from sharply-rendered lower zooms)
+ * - render empty tile outside extent of geographical area of interest
  *
  */
 import express from 'express';