From 8c768329abe312383605d4a027e9c10a7870eaaa Mon Sep 17 00:00:00 2001
From: Jennings Anderson <jennings.anderson@colorado.edu>
Date: Fri, 4 Aug 2017 10:13:46 +0530
Subject: [PATCH 1/3] adding point to tile and test

---
 index.js     | 30 +++++++++++++++++++++++++++++-
 package.json |  2 +-
 test.js      | 14 ++++++++++++++
 3 files changed, 44 insertions(+), 2 deletions(-)

diff --git a/index.js b/index.js
index 25d0e93..e99c32b 100644
--- a/index.js
+++ b/index.js
@@ -280,6 +280,33 @@ function pointToTileFraction(lon, lat, z) {
     return [x, y, z];
 }
 
+
+/**
+ * Get the center of a tile as Point GeoJSON
+ *
+ * @name tileToCenterPoint
+ * @param {Array<number>} bbox
+ * @returns {Feature<Point>}
+ * @example
+ * var point = tileToCenterPoint([ -178, 84, -177, 85 ])
+ * //=tile
+ * @param {Array<number>} tile
+ * @returns {Array<number>} tile fraction
+ * var tile = pointToTileFraction(30.5, 50.5, 15)
+ * //=tile
+ */
+
+function tileToCenterPoint(tile) {
+    var bbox = tileToBBOX(tile)
+
+    return {type: 'Point',
+            coordinates: [
+                (bbox[0] + bbox[2]) / 2,
+                (bbox[1] + bbox[3]) / 2
+            ]
+          }
+}
+
 module.exports = {
     tileToGeoJSON: tileToGeoJSON,
     tileToBBOX: tileToBBOX,
@@ -293,5 +320,6 @@ module.exports = {
     quadkeyToTile: quadkeyToTile,
     pointToTile: pointToTile,
     bboxToTile: bboxToTile,
-    pointToTileFraction: pointToTileFraction
+    pointToTileFraction: pointToTileFraction,
+    tileToCenterPoint: tileToCenterPoint
 };
diff --git a/package.json b/package.json
index ba011d7..3a33485 100644
--- a/package.json
+++ b/package.json
@@ -28,4 +28,4 @@
     "tap": "^1.3.4"
   },
   "dependencies": {}
-}
\ No newline at end of file
+}
diff --git a/test.js b/test.js
index 5367f04..19f1dd2 100644
--- a/test.js
+++ b/test.js
@@ -214,3 +214,17 @@ test('pointToTile -- cross meridian', function (t) {
     t.deepEqual(tilebelt.bboxToTile([-0.000001, -85, 1000000, 85]), [0, 0, 0]);
     t.end();
 });
+
+test('tile to center point', function (t) {
+    var tile = tilebelt.pointToTile(0, 0, 10);
+    var center = tilebelt.tileToCenterPoint(tile)
+    t.deepEqual(center,
+      { type: 'Point', coordinates: [0.17578125, -0.17578014699614353]})
+
+    var center2 = tilebelt.tileToCenterPoint(tilebelt.quadkeyToTile('300000000000000'))
+    t.deepEqual(center2,
+      { type: 'Point', coordinates: [0.0054931640625, -0.005493164028840922]}
+    )
+
+    t.end();
+});

From 72e025b388b1d523a1c1a287e403f8e1e62a79b9 Mon Sep 17 00:00:00 2001
From: Jennings Anderson <jennings.anderson@colorado.edu>
Date: Fri, 4 Aug 2017 10:17:15 +0530
Subject: [PATCH 2/3] adding description

---
 README.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/README.md b/README.md
index 6da9152..46e14f8 100644
--- a/README.md
+++ b/README.md
@@ -38,6 +38,7 @@ tileToQuadkey(tile) | get the quadkey for a tile
 quadkeyToTile(quadkey) | get the tile for a quadkey
 pointToTile(lon, lat, zoom) | get the tile for a point at a specified zoom level
 pointToTileFraction(lon, lat, zoom) | get the precise fractional tile location for a point at a zoom level
+tileToCenterPoint(tile) | Get the GeoJSON geometry of the center of the tile.
 
 ## tests
 

From f6f7a7faf527c68c49233d5b42a51e6a5951e933 Mon Sep 17 00:00:00 2001
From: Jennings Anderson <jennings.anderson@colorado.edu>
Date: Fri, 4 Aug 2017 10:20:45 +0530
Subject: [PATCH 3/3] example for tileToCenterPoint

---
 index.js | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/index.js b/index.js
index e99c32b..e0bc687 100644
--- a/index.js
+++ b/index.js
@@ -288,12 +288,8 @@ function pointToTileFraction(lon, lat, z) {
  * @param {Array<number>} bbox
  * @returns {Feature<Point>}
  * @example
- * var point = tileToCenterPoint([ -178, 84, -177, 85 ])
- * //=tile
- * @param {Array<number>} tile
- * @returns {Array<number>} tile fraction
- * var tile = pointToTileFraction(30.5, 50.5, 15)
- * //=tile
+ * var point = tileToCenterPoint([0,0,10])
+ * //= point
  */
 
 function tileToCenterPoint(tile) {