diff --git a/src/ol/geom2/linestringcollection.js b/src/ol/geom2/linestringcollection.js
index 9981ec7100..2b3427cf77 100644
--- a/src/ol/geom2/linestringcollection.js
+++ b/src/ol/geom2/linestringcollection.js
@@ -1,6 +1,7 @@
 goog.provide('ol.geom2.LineString');
 goog.provide('ol.geom2.LineStringCollection');
 
+goog.require('goog.array');
 goog.require('goog.asserts');
 goog.require('goog.object');
 goog.require('ol.geom2');
@@ -134,6 +135,29 @@ ol.geom2.LineStringCollection.prototype.getExtent = function() {
 };
 
 
+/**
+ * @return {Array} Indices.
+ */
+ol.geom2.LineStringCollection.prototype.getIndices = function() {
+  // FIXME cache and track dirty / track output length
+  // FIXME return UInt16Array?
+  var dim = this.dim;
+  var offsets = goog.array.map(goog.object.getKeys(this.ranges), Number);
+  goog.array.sort(offsets);
+  var n = offsets.length;
+  var indices = [];
+  var i, j, range, stop;
+  for (i = 0; i < n; ++i) {
+    range = this.ranges[offsets[i]];
+    stop = range[1] / dim - 1;
+    for (j = range[0] / dim; j < stop; ++j) {
+      indices.push(j, j + 1);
+    }
+  }
+  return indices;
+};
+
+
 /**
  * @param {number} offset Offset.
  */
diff --git a/test/spec/ol/geom2/linecollection.test.js b/test/spec/ol/geom2/linecollection.test.js
index a90b51a110..001ef675cc 100644
--- a/test/spec/ol/geom2/linecollection.test.js
+++ b/test/spec/ol/geom2/linecollection.test.js
@@ -128,6 +128,14 @@ describe('ol.geom2.LineStringCollection', function() {
 
     });
 
+    describe('getIndices', function() {
+
+      it('returns the expected value', function() {
+        expect(lsc.getIndices()).to.be.empty();
+      });
+
+    });
+
     describe('remove', function() {
 
       it('throws an exception', function() {
@@ -186,6 +194,14 @@ describe('ol.geom2.LineStringCollection', function() {
 
     });
 
+    describe('getIndices', function() {
+
+      it('returns the expected value', function() {
+        expect(lsc.getIndices()).to.eql([0, 1]);
+      });
+
+    });
+
     describe('remove', function() {
 
       it('removes the line string', function() {
@@ -257,18 +273,28 @@ describe('ol.geom2.LineStringCollection', function() {
 
     });
 
+    describe('getIndices', function() {
+
+      it('returns the expected value', function() {
+        expect(lsc.getIndices()).to.eql([0, 1, 2, 3, 3, 4]);
+      });
+
+    });
+
     describe('remove', function() {
 
       it('can remove the first line string', function() {
         lsc.remove(0);
         expect(lsc.getCount()).to.be(1);
         expect(lsc.get(4)).to.eql([[4, 5], [6, 7], [8, 9]]);
+        expect(lsc.getIndices()).to.eql([2, 3, 3, 4]);
       });
 
       it('can remove the second line string', function() {
         lsc.remove(4);
         expect(lsc.getCount()).to.be(1);
         expect(lsc.get(0)).to.eql([[0, 1], [2, 3]]);
+        expect(lsc.getIndices()).to.eql([0, 1]);
       });
 
     });
@@ -289,6 +315,7 @@ describe('ol.geom2.LineStringCollection', function() {
         expect(lsc.add([[10, 11], [12, 13], [14, 15]])).to.be(10);
         expect(lsc.getCount()).to.be(2);
         expect(lsc.get(10)).to.eql([[10, 11], [12, 13], [14, 15]]);
+        expect(lsc.getIndices()).to.eql([2, 3, 3, 4, 5, 6, 6, 7]);
       });
 
     });