From ddfce24f0594fe7f0f6430c5d21960c69bbe0272 Mon Sep 17 00:00:00 2001
From: Tom Payne <twpayne@gmail.com>
Date: Mon, 10 Mar 2014 15:56:16 +0100
Subject: [PATCH] Add ol.geom.MultiPoint#getPoint

---
 src/ol/geom/multipoint.exports       |  1 +
 src/ol/geom/multipoint.js            | 18 ++++++++++++++++++
 test/spec/ol/geom/multipoint.test.js |  9 +++++++++
 3 files changed, 28 insertions(+)

diff --git a/src/ol/geom/multipoint.exports b/src/ol/geom/multipoint.exports
index 11a911aabb..b00ddcae09 100644
--- a/src/ol/geom/multipoint.exports
+++ b/src/ol/geom/multipoint.exports
@@ -2,6 +2,7 @@
 @exportProperty ol.geom.MultiPoint.prototype.appendPoint
 @exportProperty ol.geom.MultiPoint.prototype.clone
 @exportProperty ol.geom.MultiPoint.prototype.getCoordinates
+@exportProperty ol.geom.MultiPoint.prototype.getPoint
 @exportProperty ol.geom.MultiPoint.prototype.getPoints
 @exportProperty ol.geom.MultiPoint.prototype.getType
 @exportProperty ol.geom.MultiPoint.prototype.setCoordinates
diff --git a/src/ol/geom/multipoint.js b/src/ol/geom/multipoint.js
index 871dfa2ce5..931761f350 100644
--- a/src/ol/geom/multipoint.js
+++ b/src/ol/geom/multipoint.js
@@ -85,6 +85,24 @@ ol.geom.MultiPoint.prototype.getCoordinates = function() {
 };
 
 
+/**
+ * @param {number} index Index.
+ * @return {ol.geom.Point} Point.
+ */
+ol.geom.MultiPoint.prototype.getPoint = function(index) {
+  var n = goog.isNull(this.flatCoordinates) ?
+      0 : this.flatCoordinates.length / this.stride;
+  goog.asserts.assert(0 <= index && index < n);
+  if (index < 0 || n <= index) {
+    return null;
+  }
+  var point = new ol.geom.Point(null);
+  point.setFlatCoordinates(this.layout, this.flatCoordinates.slice(
+      index * this.stride, (index + 1) * this.stride));
+  return point;
+};
+
+
 /**
  * @return {Array.<ol.geom.Point>} Points.
  * @todo stability experimental
diff --git a/test/spec/ol/geom/multipoint.test.js b/test/spec/ol/geom/multipoint.test.js
index 5c2f66148e..26535273c6 100644
--- a/test/spec/ol/geom/multipoint.test.js
+++ b/test/spec/ol/geom/multipoint.test.js
@@ -132,6 +132,15 @@ describe('ol.geom.MultiPoint', function() {
       expect(multiPoint.getStride()).to.be(3);
     });
 
+    it('can return individual points', function() {
+      var point0 = multiPoint.getPoint(0);
+      expect(point0.getLayout()).to.be(ol.geom.GeometryLayout.XYM);
+      expect(point0.getCoordinates()).to.eql([1, 2, 3]);
+      var point1 = multiPoint.getPoint(1);
+      expect(point1.getLayout()).to.be(ol.geom.GeometryLayout.XYM);
+      expect(point1.getCoordinates()).to.eql([4, 5, 6]);
+    });
+
     it('can return all points', function() {
       var points = multiPoint.getPoints();
       expect(points).to.have.length(2);