Remove use of shared vertices in geom package

src/ol/geom/linestring.js

@@ -2,47 +2,34 @@ goog.provide('ol.geom.LineString');
 
 goog.require('goog.asserts');
 goog.require('ol.CoordinateArray');
+goog.require('ol.extent');
 goog.require('ol.geom');
 goog.require('ol.geom.Geometry');
 goog.require('ol.geom.GeometryType');
-goog.require('ol.geom.SharedVertices');
 
 
 
 /**
  * @constructor
  * @extends {ol.geom.Geometry}
- * @param {ol.CoordinateArray} coordinates Vertex array (e.g.
+ * @param {ol.CoordinateArray} coordinates Array of coordinates (e.g.
  *    [[x0, y0], [x1, y1]]).
- * @param {ol.geom.SharedVertices=} opt_shared Shared vertices.
  */
-ol.geom.LineString = function(coordinates, opt_shared) {
+ol.geom.LineString = function(coordinates) {
   goog.base(this);
   goog.asserts.assert(goog.isArray(coordinates[0]));
 
-  var vertices = opt_shared,
-      dimension;
-
-  if (!goog.isDef(vertices)) {
-    dimension = coordinates[0].length;
-    vertices = new ol.geom.SharedVertices({dimension: dimension});
-  }
-
   /**
-   * @type {ol.geom.SharedVertices}
-   */
-  this.vertices = vertices;
-
-  /**
-   * @type {number}
+   * Array of coordinates.
+   * @type {ol.CoordinateArray}
    * @private
    */
-  this.sharedId_ = vertices.add(coordinates);
+  this.coordinates_ = coordinates;
 
   /**
    * @type {number}
    */
-  this.dimension = vertices.getDimension();
+  this.dimension = coordinates[0].length;
   goog.asserts.assert(this.dimension >= 2);
 
   /**
@@ -62,7 +49,9 @@ goog.inherits(ol.geom.LineString, ol.geom.Geometry);
  * @return {number} The vertex coordinate value.
  */
 ol.geom.LineString.prototype.get = function(index, dim) {
-  return this.vertices.get(this.sharedId_, index, dim);
+  var coordinates = this.getCoordinates();
+  goog.asserts.assert(coordinates.length > index);
+  return coordinates[index][dim];
 };
 
 
@@ -71,17 +60,7 @@ ol.geom.LineString.prototype.get = function(index, dim) {
  * @return {ol.CoordinateArray} Coordinates array.
  */
 ol.geom.LineString.prototype.getCoordinates = function() {
-  var count = this.getCount();
-  var coordinates = new Array(count);
-  var vertex;
-  for (var i = 0; i < count; ++i) {
-    vertex = new Array(this.dimension);
-    for (var j = 0; j < this.dimension; ++j) {
-      vertex[j] = this.get(i, j);
-    }
-    coordinates[i] = vertex;
-  }
-  return coordinates;
+  return this.coordinates_;
 };
 
 
@@ -90,7 +69,7 @@ ol.geom.LineString.prototype.getCoordinates = function() {
  * @return {number} The vertex count.
  */
 ol.geom.LineString.prototype.getCount = function() {
-  return this.vertices.getCount(this.sharedId_);
+  return this.getCoordinates().length;
 };
 
 
@@ -99,34 +78,12 @@ ol.geom.LineString.prototype.getCount = function() {
  */
 ol.geom.LineString.prototype.getBounds = function() {
   if (goog.isNull(this.bounds_)) {
-    var dimension = this.dimension,
-        vertices = this.vertices,
-        id = this.sharedId_,
-        count = vertices.getCount(id),
-        start = vertices.getStart(id),
-        end = start + (count * dimension),
-        coordinates = vertices.coordinates,
-        minX, maxX,
-        minY, maxY,
-        x, y, i;
-
-    minX = maxX = coordinates[start];
-    minY = maxY = coordinates[start + 1];
-    for (i = start + dimension; i < end; i += dimension) {
-      x = coordinates[i];
-      y = coordinates[i + 1];
-      if (x < minX) {
-        minX = x;
-      } else if (x > maxX) {
-        maxX = x;
-      }
-      if (y < minY) {
-        minY = y;
-      } else if (y > maxY) {
-        maxY = y;
-      }
+    var coordinates = this.getCoordinates();
+    var extent = ol.extent.createEmpty();
+    for (var i = 0, ii = coordinates.length; i < ii; ++i) {
+      ol.extent.extendCoordinate(extent, coordinates[i]);
     }
-    this.bounds_ = [minX, minY, maxX, maxY];
+    this.bounds_ = extent;
   }
   return this.bounds_;
 };
@@ -140,15 +97,6 @@ ol.geom.LineString.prototype.getType = function() {
 };
 
 
-/**
- * Get the identifier used to mark this line in the shared vertices structure.
- * @return {number} The identifier.
- */
-ol.geom.LineString.prototype.getSharedId = function() {
-  return this.sharedId_;
-};
-
-
 /**
  * Calculate the distance from a coordinate to this linestring.
  *