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 <h1>DataSet documentation</h1>

 <h2 id="Contents">Contents</h2>
 <ul>
  <li><a href="#Overview">Overview</a></li>
  <li><a href="#Example">Example</a></li>
  <li><a href="#Construction">Construction</a></li>
  <li><a href="#Methods">Methods</a></li>
  <li><a href="#Properties">Properties</a></li>
  <li><a href="#Subscriptions">Subscriptions</a></li>
  <li><a href="#Data_Manipulation">Data Manipulation</a></li>
  <li><a href="#Data_Selection">Data Selection</a></li>
  <li><a href="#Data_Policy">Data Policy</a></li>
 </ul>


 <h2 id="Overview">Overview</h2>

 <p>
  Vis.js comes with a flexible DataSet, which can be used to hold and
  manipulate unstructured data and listen for changes in the data.
  The DataSet is key/value based. Data items can be added, updated and
  removed from the DatSet, and one can subscribe to changes in the DataSet.
  The data in the DataSet can be filtered and ordered, and fields (like
  dates) can be converted to a specific type. Data can be normalized when
  appending it to the DataSet as well.
 </p>


 <h2 id="Example">Example</h2>

 <p>
  The following example shows how to use a DataSet.
 </p>

 <pre class="prettyprint lang-js">
 // create a DataSet
 var options = {};
 var data = new vis.DataSet(options);

 // add items
 // note that the data items can contain different properties and data formats
 data.add([
  {id: 1, text: 'item 1', date: new Date(2013, 6, 20), group: 1, first: true},
  {id: 2, text: 'item 2', date: '2013-06-23', group: 2},
  {id: 3, text: 'item 3', date: '2013-06-25', group: 2},
  {id: 4, text: 'item 4'}
 ]);

 // subscribe to any change in the DataSet
 data.on('*', function (event, properties, senderId) {
  console.log('event', event, properties);
 });

 // update an existing item
 data.update({id: 2, group: 1});

 // remove an item
 data.remove(4);

 // get all ids
 var ids = data.getIds();
 console.log('ids', ids);

 // get a specific item
 var item1 = data.get(1);
 console.log('item1', item1);

 // retrieve a filtered subset of the data
 var items = data.get({
  filter: function (item) {
    return item.group == 1;
  }
 });
 console.log('filtered items', items);

 // retrieve formatted items
 var items = data.get({
  fields: ['id', 'date'],
  type: {
    date: 'ISODate'
  }
 });
 console.log('formatted items', items);
 </pre>



 <h2 id="Construction">Construction</h2>

 <p>
  A DataSet can be constructed as:
 </p>

 <pre class="prettyprint lang-js">
 var data = new vis.DataSet([data] [, options])
 </pre>

 <p>
  After construction, data can be added to the DataSet using the methods
  <code>add</code> and <code>update</code>, as described in section
  <a href="#Data_Manipulation">Data Manipulation</a>.
 </p>

 <p>
  The parameter <code>data</code> is optional and is an Array with items.
 </p>

 <p>
  The parameter <code>options</code> is optional and is an object which can
  contain the following properties:
 </p>

 <table>
  <tr>
    <th>Name</th>
    <th>Type</th>
    <th>Default value</th>
    <th>Description</th>
  </tr>
  <tr>
    <td>fieldId</td>
    <td>String</td>
    <td>"id"</td>
    <td>
      The name of the field containing the id of the items.

      When data is fetched from a server which uses some specific
      field to identify items, this field name can be specified
      in the DataSet using the option <code>fieldId</code>.
      For example <a href="http://couchdb.apache.org/"
                     target="_blank">CouchDB</a> uses the field
      <code>"_id"</code> to identify documents.
    </td>
  </tr>
  <tr>
    <td>type</td>
    <td>Object.&lt;String,&nbsp;String&gt;</td>
    <td>none</td>
    <td>
      An object containing field names as key, and data types as
      value. By default, the type of the properties of items are left
      unchanged. Item properties can be normalized by specifying a
      field type. This is useful for example to automatically convert
      stringified dates coming from a server into JavaScript Date
      objects. The available data types are listed in section
      <a href="#Data_Types">Data Types</a>.
    </td>
  </tr>
  <tr>
    <td>queue</td>
    <td>Object | boolean</td>
    <td>none</td>
    <td>
      Queue data changes ('add', 'update', 'remove') and flush them at once.
      The queue can be flushed manually by calling
      <code>DataSet.flush()</code>, or can be flushed after a configured delay
      or maximum number of entries.
      <br>
      <br>
      When <code>queue</code> is true, a queue is created
      with default options. Options can be specified by providing an object:
      <ul>
        <li><code>delay: number</code><br>
          The queue will be flushed automatically after an inactivity of this
          delay in milliseconds. Default value is <code>null</code>.
        <li><code>max: number</code><br>
          When the queue exceeds the given maximum number
          of entries, the queue is flushed automatically.
          Default value is <code>Infinity</code>.
        </li>
      </ul>
    </td>
  </tr>
 </table>


 <h2 id="Methods">Methods</h2>

 <p>DataSet contains the following methods.</p>

 <table>
  <colgroup>
    <col width="200">
  </colgroup>

  <tr>
    <th>Method</th>
    <th>Return Type</th>
    <th>Description</th>
  </tr>

  <tr>
    <td>add(data [, senderId])</td>
    <td>Number[]</td>
    <td>Add one or multiple items to the DataSet. <code>data</code> can be a single item or an array with items. Adding an item will fail when there already is an item with the same id. The function returns an array with the ids of the added items. See section <a href="#Data_Manipulation">Data Manipulation</a>.</td>
  </tr>

  <tr>
    <td>clear([senderId])</td>
    <td>Number[]</td>
    <td>Clear all data from the DataSet. The function returns an array with the ids of the removed items.</td>
  </tr>

  <tr>
    <td>distinct(field)</td>
    <td>Array</td>
    <td>Find all distinct values of a specified field. Returns an unordered array containing all distinct values. If data items do not contain the specified field are ignored.</td>
  </tr>

  <tr>
    <td>flush()</td>
    <td>none</td>
    <td>Flush queued changes. Only available when the DataSet is configured with the option <code>queue</code>, see section <a href="#Construction">Construction</a>.</td>
  </tr>

  <tr>
    <td>forEach(callback [, options])</td>
    <td>none</td>
    <td>
      Execute a callback function for every item in the dataset.
      The available options are described in section <a href="#Data_Selection">Data Selection</a>.
    </td>
  </tr>

  <tr>
    <td>
      get([options] [, data])<br>
      get(id [,options] [, data])<br>
      get(ids [, options] [, data])
    </td>
    <td>Object | Array</td>
    <td>
      Get a single item, multiple items, or all items from the DataSet.
      Usage examples can be found in section <a href="#Getting_Data">Getting Data</a>, and the available <code>options</code> are described in section <a href="#Data_Selection">Data Selection</a>.
    </td>
  </tr>

  <tr>
    <td>
      getDataSet()
    </td>
    <td>DataSet</td>
    <td>
      Get the DataSet itself. In case of a DataView, this function does not
      return the DataSet to which the DataView is connected.
    </td>
  </tr>

  <tr>
    <td>
      getIds([options])
    </td>
    <td>Number[]</td>
    <td>
      Get ids of all items or of a filtered set of items.
      Available <code>options</code> are described in section <a href="#Data_Selection">Data Selection</a>, except that options <code>fields</code> and <code>type</code> are not applicable in case of <code>getIds</code>.
    </td>
  </tr>

  <tr>
    <td>map(callback [, options])</td>
    <td>Array</td>
    <td>
      Map every item in the DataSet.
      The available options are described in section <a href="#Data_Selection">Data Selection</a>.
    </td>
  </tr>

  <tr>
    <td>max(field)</td>
    <td>Object | null</td>
    <td>
      Find the item with maximum value of specified field. Returns <code>null</code> if no item is found.
    </td>
  </tr>

  <tr>
    <td>min(field)</td>
    <td>Object | null</td>
    <td>
      Find the item with minimum value of specified field. Returns <code>null</code> if no item is found.
    </td>
  </tr>

  <tr>
    <td>off(event, callback)</td>
    <td>none</td>
    <td>
      Unsubscribe from an event, remove an event listener. See section <a href="#Subscriptions">Subscriptions</a>.
    </td>
  </tr>

  <tr>
    <td>on(event, callback)</td>
    <td>none</td>
    <td>
      Subscribe to an event, add an event listener. See section <a href="#Subscriptions">Subscriptions</a>.
    </td>
  </tr>

  <tr>
    <td>
      remove(id [, senderId])<br>
      remove(ids [, senderId])
    </td>
    <td>Number[]</td>
    <td>
      Remove one or multiple items by id or by the items themselves. Returns an array with the ids of the removed items. See section <a href="#Data_Manipulation">Data Manipulation</a>.
    </td>
  </tr>

  <tr>
    <td>
      setOptions(options)
    </td>
    <td>none</td>
    <td>
      Set options for the DataSet. Available options:

      <ul>
        <li>
          <code>queue</code><br>
          Queue data changes ('add', 'update', 'remove') and flush them at once.
          The queue can be flushed manually by calling
          <code>DataSet.flush()</code>, or can be flushed after a configured delay
          or maximum number of entries.
          <br>
          <br>
          When <code>queue</code> is true, a queue is created with default options.
          When <code>queue</code> is false, an existing queue will be flushed and removed.
          Options can be specified by providing an object:
          <ul>
            <li><code>delay: number</code><br>
              The queue will be flushed automatically after an inactivity of this
              delay in milliseconds. Default value is <code>null</code>.
            <li><code>max: number</code><br>
              When the queue exceeds the given maximum number
              of entries, the queue is flushed automatically.
              Default value is <code>Infinity</code>.
            </li>
          </ul>
        </li>
      </ul>
    </td>
  </tr>

  <tr>
    <td>
      update(data [, senderId])
    </td>
    <td>Number[]</td>
    <td>
      Update on ore multiple existing items. <code>data</code> can be a single item or an array with items. When an item doesn't  exist, it will be created. Returns an array with the ids of the removed items. See section <a href="#Data_Manipulation">Data Manipulation</a>.
    </td>
  </tr>

 </table>


 <h2 id="Properties">Properties</h2>

 <p>DataSet contains the following properties.</p>

 <table>
  <colgroup>
    <col width="200">
  </colgroup>

  <tr>
    <th>Property</th>
    <th>Type</th>
    <th>Description</th>
  </tr>

  <tr>
    <td>length</td>
    <td>Number</td>
    <td>The number of items in the DataSet.</td>
  </tr>
 </table>


 <h2 id="Subscriptions">Subscriptions</h2>

 <p>
  One can subscribe on changes in a DataSet.
  A subscription can be created using the method <code>on</code>,
  and removed with <code>off</code>.
 </p>

 <pre class="prettyprint lang-js">
 // create a DataSet
 var data = new vis.DataSet();

 // subscribe to any change in the DataSet
 data.on('*', function (event, properties, senderId) {
  console.log('event:', event, 'properties:', properties, 'senderId:', senderId);
 });

 // add an item
 data.add({id: 1, text: 'item 1'});              // triggers an 'add' event
 data.update({id: 1, text: 'item 1 (updated)'}); // triggers an 'update' event
 data.remove(1);                                 // triggers an 'remove' event
 </pre>


 <h3 id="On">On</h3>

 <p>
  Subscribe to an event.
 </p>

 Syntax:
 <pre class="prettyprint lang-js">DataSet.on(event, callback)</pre>

 Where:
 <ul>
  <li>
    <code>event</code> is a String containing any of the events listed
    in section <a href="#Events">Events</a>.
  </li>
  <li>
    <code>callback</code> is a callback function which will be called
    each time the event occurs. The callback function is described in
    section <a href="#Callback">Callback</a>.
  </li>
 </ul>

 <h3 id="Off">Off</h3>

 <p>
  Unsubscribe from an event.
 </p>

 Syntax:
 <pre class="prettyprint lang-js">DataSet.off(event, callback)</pre>

 Where <code>event</code> and <code>callback</code> correspond with the
 parameters used to <a href="#On">subscribe</a> to the event.

 <h3 id="Events">Events</h3>

 <p>
  The following events are available for subscription:
 </p>

 <table>
  <tr>
    <th>Event</th>
    <th>Description</th>
  </tr>
  <tr>
    <td>add</td>
    <td>
      The <code>add</code> event is triggered when an item
      or a set of items is added, or when an item is updated while
      not yet existing.
    </td>
  </tr>
  <tr>
    <td>update</td>
    <td>
      The <code>update</code> event is triggered when an existing item
      or a set of existing items is updated.
    </td>
  </tr>
  <tr>
    <td>remove</td>
    <td>
      The <code>remove</code> event is triggered when an item
      or a set of items is removed.
    </td>
  </tr>
  <tr>
    <td>*</td>
    <td>
      The <code>*</code> event is triggered when any of the events
      <code>add</code>, <code>update</code>, and <code>remove</code>
      occurs.
    </td>
  </tr>
 </table>

 <h3 id="Callback">Callback</h3>

 <p>
  The callback functions of subscribers are called with the following
  parameters:
 </p>

    <pre class="prettyprint lang-js">
 function (event, properties, senderId) {
  // handle the event
 });
 </pre>

 <p>
  where the parameters are defined as
 </p>

 <table>
  <tr>
    <th>Parameter</th>
    <th>Type</th>
    <th>Description</th>
  </tr>
  <tr>
    <td>event</td>
    <td>String</td>
    <td>
      Any of the available events: <code>add</code>,
      <code>update</code>, or <code>remove</code>.
    </td>
  </tr>
  <tr>
    <td>properties</td>
    <td>Object&nbsp;|&nbsp;null</td>
    <td>
      Optional properties providing more information on the event.
      In case of the events <code>add</code>,
      <code>update</code>, and <code>remove</code>,
      <code>properties</code> is always an object containing a property
      <code>items</code>, which contains an array with the ids of the affected
      items. The <code>update</code> event has an extra field <code>data</code>
      containing the original data of the updated items, i.e. the gives the
      changed fields of the changed items.
    </td>
  </tr>
  <tr>
    <td>senderId</td>
    <td>String&nbsp;|&nbsp;Number</td>
    <td>
      An senderId, optionally provided by the application code
      which triggered the event. If senderId is not provided, the
      argument will be <code>null</code>.
    </td>
  </tr>
 </table>


 <h2 id="Data_Manipulation">Data Manipulation</h2>

 <p>
  The data in a DataSet can be manipulated using the methods
  <a href="#Add"><code>add</code></a>,
  <a href="#Update"><code>update</code></a>,
  and <a href="#Remove"><code>remove</code></a>.
  The DataSet can be emptied using the method
  <a href="#Clear"><code>clear</code></a>.
 </p>

 <pre class="prettyprint lang-js">
 // create a DataSet
 var data = new vis.DataSet();

 // add items
 data.add([
  {id: 1, text: 'item 1'},
  {id: 2, text: 'item 2'},
  {id: 3, text: 'item 3'}
 ]);

 // update an item
 data.update({id: 2, text: 'item 2 (updated)'});

 // remove an item
 data.remove(3);
 </pre>

 <h3 id="Add">Add</h3>

 <p>
  Add a data item or an array with items.
 </p>

 Syntax:
 <pre class="prettyprint lang-js">var addedIds = DataSet.add(data [, senderId])</pre>

 The argument <code>data</code> can contain:
 <ul>
  <li>
    An <code>Object</code> containing a single item to be
    added. The item must contain an id.
  </li>
  <li>
    An <code>Array</code> containing a list with items to be added. Each item must contain an id.
  </li>
 </ul>

 <p>
  After the items are added to the DataSet, the DataSet will
  trigger an event <code>add</code>. When a <code>senderId</code>
  is provided, this id will be passed with the triggered
  event to all subscribers.
 </p>

 <p>
  The method will throw an Error when an item with the same id
  as any of the added items already exists.
 </p>

 <h3 id="Update">Update</h3>

 <p>
  Update a data item or an array with items.
 </p>

 Syntax:
 <pre class="prettyprint lang-js">var updatedIds = DataSet.update(data [, senderId])</pre>

 The argument <code>data</code> can contain:
 <ul>
  <li>
    An <code>Object</code> containing a single item to be
    updated. The item must contain an id.
  </li>
  <li>
    An <code>Array</code> containing a list with items to be updated. Each item must contain an id.
  </li>
 </ul>

 <p>
  The provided properties will be merged in the existing item.
  When an item does not exist, it will be created.
 </p>

 <p>
  After the items are updated, the DataSet will
  trigger an event <code>add</code> for the added items, and
  an event <code>update</code>. When a <code>senderId</code>
  is provided, this id will be passed with the triggered
  event to all subscribers.
 </p>

 <h3 id="Remove">Remove</h3>

 <p>
  Remove a data item or an array with items.
 </p>

 Syntax:
 <pre class="prettyprint lang-js">var removedIds = DataSet.remove(id [, senderId])</pre>

 <p>
  The argument <code>id</code> can be:
 </p>
 <ul>
  <li>
    A <code>Number</code> or <code>String</code> containing the id
    of a single item to be removed.
  </li>
  <li>
    An <code>Object</code> containing the item to be deleted.
    The item will be deleted by its id.
  </li>
  <li>
    An Array containing ids or items to be removed.
  </li>
 </ul>

 <p>
  The method ignores removal of non-existing items, and returns an array
  containing the ids of the items which are actually removed from the
  DataSet.
 </p>

 <p>
  After the items are removed, the DataSet will
  trigger an event <code>remove</code> for the removed items.
  When a <code>senderId</code> is provided, this id will be passed with
  the triggered event to all subscribers.
 </p>


 <h3 id="Clear">Clear</h3>

 <p>
  Clear the complete DataSet.
 </p>

 Syntax:
 <pre class="prettyprint lang-js">var removedIds = DataSet.clear([senderId])</pre>

 <p>
  After the items are removed, the DataSet will
  trigger an event <code>remove</code> for all removed items.
  When a <code>senderId</code> is provided, this id will be passed with
  the triggered event to all subscribers.
 </p>


 <h2 id="Data_Selection">Data Selection</h2>

 <p>
  The DataSet contains functionality to format, filter, and sort data retrieved via the
  methods <code>get</code>, <code>getIds</code>, <code>forEach</code>, and <code>map</code>. These methods have the following syntax:
 </p>

 <pre class="prettyprint lang-js">
 DataSet.get([id] [, options]);
 DataSet.getIds([options]);
 DataSet.forEach(callback [, options]);
 DataSet.map(callback [, options]);
 </pre>

 <p>
  Where <code>options</code> is an Object which can have the following
  properties:
 </p>

 <table>
  <tr>
    <th>Name</th>
    <th>Type</th>
    <th>Description</th>
  </tr>

  <tr>
    <td>fields</td>
    <td>String[&nbsp;] | Object.&lt;String,&nbsp;String&gt;</td>
    <td>
      An array with field names, or an object with current field name and 
      new field name that the field is returned as.
      By default, all properties of the items are emitted.
      When <code>fields</code> is defined, only the properties
      whose name is specified in <code>fields</code> will be included
      in the returned items.
    </td>
  </tr>

  <tr>
    <td>type</td>
    <td>Object.&lt;String,&nbsp;String&gt;</td>
    <td>
      An object containing field names as key, and data types as value.
      By default, the type of the properties of an item are left
      unchanged. When a field type is specified, this field in the
      items will be converted to the specified type. This can be used
      for example to convert ISO strings containing a date to a
      JavaScript Date object, or convert strings to numbers or vice
      versa. The available data types are listed in section
      <a href="#Data_Types">Data Types</a>.
    </td>
  </tr>

  <tr>
    <td>filter</td>
    <td>Function</td>
    <td>Items can be filtered on specific properties by providing a filter
      function. A filter function is executed for each of the items in the
      DataSet, and is called with the item as parameter. The function must
      return a boolean. All items for which the filter function returns
      true will be emitted.
      See section <a href="#Data_Filtering">Data Filtering</a>.</td>
  </tr>

  <tr>
    <td>order</td>
    <td>String | Function</td>
    <td>Order the items by a field name or custom sort function.</td>
  </tr>

  <tr>
      <td>returnType</td>
      <td>String</td>
      <td>Determine the type of output of the get function. Allowed values are <code>'Array' | 'Object'</code>.
          The default returnType is an Array. The Object type will return a JSON object with the ID's as keys.</td>
  </tr>

 </table>

 <p>
  The following example demonstrates formatting properties and filtering
  properties from items.
 </p>

 <pre class="prettyprint lang-js">
 // create a DataSet
 var data = new vis.DataSet();
 data.add([
  {id: 1, text: 'item 1', date: '2013-06-20', group: 1, first: true},
  {id: 2, text: 'item 2', date: '2013-06-23', group: 2},
  {id: 3, text: 'item 3', date: '2013-06-25', group: 2},
  {id: 4, text: 'item 4'}
 ]);

 // retrieve formatted items
 var items = data.get({
  fields: ['id', 'date', 'group'],    // output the specified fields only
  type: {
    date: 'Date',                   // convert the date fields to Date objects
    group: 'String'                 // convert the group fields to Strings
  }
 });
 </pre>

 <h3 id="Getting_Data">Getting Data</h3>

 <p>
  Data can be retrieved from the DataSet using the method <code>get</code>.
  This method can return a single item or a list with items.
 </p>

 <p>A single item can be retrieved by its id:</p>

 <pre class="prettyprint lang-js">
 var item1 = dataset.get(1);
 </pre>

 <p>A selection of items can be retrieved by providing an array with ids:</p>

 <pre class="prettyprint lang-js">
 var items = dataset.get([1, 3, 4]); // retrieve items 1, 3, and 4
 </pre>

 <p>All items can be retrieved by simply calling <code>get</code> without
  specifying an id:</p>

 <pre class="prettyprint lang-js">
 var items = dataset.get();          // retrieve all items
 </pre>


 <h3 id="Data_Filtering">Data Filtering</h3>

 <p>
  Items can be filtered on specific properties by providing a filter
  function. A filter function is executed for each of the items in the
  DataSet, and is called with the item as parameter. The function must
  return a boolean. All items for which the filter function returns
  true will be emitted.
 </p>

 <pre class="prettyprint lang-js">
 // retrieve all items having a property group with value 2
 var group2 = dataset.get({
  filter: function (item) {
    return (item.group == 2);
  }
 });

 // retrieve all items having a property balance with a value above zero
 var positiveBalance = dataset.get({
  filter: function (item) {
    return (item.balance > 0);
  }
 });

 </pre>


 <h3 id="Data_Types">Data Types</h3>

 <p>
  DataSet supports the following data types:
 </p>

 <table style="width: 100%">
  <tr>
    <th>Name</th>
    <th>Description</th>
    <th>Examples</th>
  </tr>
  <tr>
    <td>Boolean</td>
    <td>A JavaScript Boolean</td>
    <td>
      <code>true</code><br>
      <code>false</code>
    </td>
  </tr>
  <tr>
    <td>Number</td>
    <td>A JavaScript Number</td>
    <td>
      <code>32</code><br>
      <code>2.4</code>
    </td>
  </tr>
  <tr>
    <td>String</td>
    <td>A JavaScript String</td>
    <td>
      <code>"hello world"</code><br>
      <code>"2013-06-28"</code>
    </td>
  </tr>
  <tr>
    <td>Date</td>
    <td>A JavaScript Date object</td>
    <td>
      <code>new Date()</code><br>
      <code>new Date(2013, 5, 28)</code><br>
      <code>new Date(1372370400000)</code>
    </td>
  </tr>
  <tr>
    <td>Moment</td>
    <td>A Moment object, created with
      <a href="http://momentjs.com/" target="_blank">moment.js</a></td>
    <td>
      <code>moment()</code><br>
      <code>moment('2013-06-28')</code>
    </td>
  </tr>
  <tr>
    <td>ISODate</td>
    <td>A string containing an ISO Date</td>
    <td>
      <code>new Date().toISOString()</code><br>
      <code>"2013-06-27T22:00:00.000Z"</code>
    </td>
  </tr>
  <tr>
    <td>ASPDate</td>
    <td>A string containing an ASP Date</td>
    <td>
      <code>"/Date(1372370400000)/"</code><br>
      <code>"/Date(1198908717056-0700)/"</code>
    </td>
  </tr>
 </table>


 <h2 id="Data_Policy">Data Policy</h2>
 <p>
  All code and data is processed and rendered in the browser.
  No data is sent to any server.
 </p>

 </div>
 </body>
 </html>
--- a/docs/old/dataview.html
+++ b/docs/old/dataview.html
@ -1,338 +0,0 @@
 <!doctype html>
 <html>

 <head>
  <title>vis.js | DataView documentation</title>

  <link href="css/prettify.css" type="text/css" rel="stylesheet" />
  <link href='css/old_style.css' type='text/css' rel='stylesheet'>

  <script type="text/javascript" src="js/prettify/prettify.js"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-61231638-1', 'auto');ga('send', 'pageview');</script></head>

 <body onload="prettyPrint();">
 <div id="container">

 <h1>DataView documentation</h1>

 <h2 id="Contents">Contents</h2>
 <ul>
  <li><a href="#Overview">Overview</a></li>
  <li><a href="#Example">Example</a></li>
  <li><a href="#Construction">Construction</a></li>
  <li><a href="#Methods">Methods</a></li>
  <li><a href="#Properties">Properties</a></li>
  <li><a href="#Getting_Data">Getting Data</a></li>
  <li><a href="#Subscriptions">Subscriptions</a></li>
  <li><a href="#Data_Policy">Data Policy</a></li>
 </ul>


 <h2 id="Overview">Overview</h2>

 <p>
  A DataView offers a filtered and/or formatted view on a
  <a href="dataset.html">DataSet</a>.
  One can subscribe on changes in a DataView, and easily get filtered or
  formatted data without having to specify filters and field types all
  the time.
 </p>

 <h2 id="Example">Example</h2>

 <p>
  The following example shows how to use a DataView.
 </p>

 <pre class="prettyprint lang-js">
 // create a DataSet
 var data = new vis.DataSet();
 data.add([
  {id: 1, text: 'item 1', date: new Date(2013, 6, 20), group: 1, first: true},
  {id: 2, text: 'item 2', date: '2013-06-23', group: 2},
  {id: 3, text: 'item 3', date: '2013-06-25', group: 2},
  {id: 4, text: 'item 4'}
 ]);

 // create a DataView
 // the view will only contain items having a property group with value 1,
 // and will only output fields id, text, and date.
 var view = new vis.DataView(data, {
  filter: function (item) {
    return (item.group == 1);
  },
  fields: ['id', 'text', 'date']
 });

 // subscribe to any change in the DataView
 view.on('*', function (event, properties, senderId) {
  console.log('event', event, properties);
 });

 // update an item in the data set
 data.update({id: 2, group: 1});

 // get all ids in the view
 var ids = view.getIds();
 console.log('ids', ids); // will output [1, 2]

 // get all items in the view
 var items = view.get();
 </pre>

 <h2 id="Construction">Construction</h2>


 <p>
  A DataView can be constructed as:
 </p>

 <pre class="prettyprint lang-js">
 var data = new vis.DataView(dataset, options)
 </pre>

 <p>
  where:
 </p>

 <ul>
  <li>
    <code>dataset</code> is a DataSet or DataView.
  </li>
  <li>
    <code>options</code> is an object which can
    contain the following properties. Note that these properties
    are exactly the same as the properties available in methods
    <code>DataSet.get</code> and <code>DataView.get</code>.

    <table>
      <tr>
        <th>Name</th>
        <th>Type</th>
        <th>Description</th>
      </tr>

      <tr>
        <td>convert</td>
        <td>Object.&lt;String,&nbsp;String&gt;</td>
        <td>
          An object containing field names as key, and data types as value.
          By default, the type of the properties of an item are left
          unchanged. When a field type is specified, this field in the
          items will be converted to the specified type. This can be used
          for example to convert ISO strings containing a date to a
          JavaScript Date object, or convert strings to numbers or vice
          versa. The available data types are listed in section
          <a href="dataset.html#Data_Types">Data Types</a>.
        </td>
      </tr>

      <tr>
        <td>fields</td>
        <td>String[&nbsp;] | Object.&lt;String,&nbsp;String&gt;</td>
        <td>
          An array with field names, or an object with current field name and 
          new field name that the field is returned as. 
          By default, all properties of the items are emitted.
          When <code>fields</code> is defined, only the properties
          whose name is specified in <code>fields</code> will be included
          in the returned items.
        </td>
      </tr>

      <tr>
        <td>filter</td>
        <td>function</td>
        <td>Items can be filtered on specific properties by providing a filter
          function. A filter function is executed for each of the items in the
          DataSet, and is called with the item as parameter. The function must
          return a boolean. All items for which the filter function returns
          true will be emitted.
          See also section <a href="dataset.html#Data_Filtering">Data Filtering</a>.</td>
      </tr>

    </table>
  </li>
 </ul>

 <h2 id="Methods">Methods</h2>

 <p>DataView contains the following methods.</p>

 <table>
  <colgroup>
    <col width="200">
  </colgroup>

  <tr>
    <th>Method</th>
    <th>Return Type</th>
    <th>Description</th>
  </tr>

  <tr>
    <td>
      get([options] [, data])<br>
      get(id [,options] [, data])<br>
      get(ids [, options] [, data])
    </td>
    <td>Object | Array</td>
    <td>
      Get a single item, multiple items, or all items from the DataView.
      Usage examples can be found in section <a href="#Getting_Data">Getting Data</a>, and the available <code>options</code> are described in section <a href="#Data_Selection">Data Selection</a>.
    </td>
  </tr>

  <tr>
    <td>
      getDataSet()
    </td>
    <td>DataSet</td>
    <td>
      Get the DataSet to which the DataView is connected.
    </td>
  </tr>

  <tr>
    <td>
      getIds([options])
    </td>
    <td>Number[]</td>
    <td>
      Get ids of all items or of a filtered set of items.
      Available <code>options</code> are described in section <a href="dataset.html#Data_Selection">Data Selection</a>, except that options <code>fields</code> and <code>type</code> are not applicable in case of <code>getIds</code>.
    </td>
  </tr>

  <tr>
    <td>off(event, callback)</td>
    <td>none</td>
    <td>
      Unsubscribe from an event, remove an event listener. See section <a href="#Subscriptions">Subscriptions</a>.
    </td>
  </tr>

  <tr>
    <td>on(event, callback)</td>
    <td>none</td>
    <td>
      Subscribe to an event, add an event listener. See section <a href="#Subscriptions">Subscriptions</a>.
    </td>
  </tr>

  <tr>
    <td>refresh()</td>
    <td>none</td>
    <td>
      Refresh the filter results of a DataView. Useful when the filter function contains dynamic properties, like:

      <pre class="prettyprint lang-js">var data = new vis.DataSet(...);
 var view = new vis.DataView(data, {
  filter: function (item) {
    return item.value > threshold;
  }
 });</pre>
      In this example, <code>threshold</code> is an external parameter. When the value of <code>threshold</code> changes, the DataView must be notified that the filter results may have changed by calling <code>DataView.refresh()</code>.
    </td>
  </tr>

  <tr>
    <td>
      setDataSet(data)
    </td>
    <td>none</td>
    <td>
      Replace the DataSet of the DataView. Parameter <code>data</code> can be a DataSet or a DataView.
    </td>
  </tr>

 </table>


 <h2 id="Properties">Properties</h2>

 <p>DataView contains the following properties.</p>

 <table>
  <colgroup>
    <col width="200">
  </colgroup>

  <tr>
    <th>Property</th>
    <th>Type</th>
    <th>Description</th>
  </tr>

  <tr>
    <td>length</td>
    <td>Number</td>
    <td>The number of items in the DataView.</td>
  </tr>
 </table>

 <h2 id="Getting_Data">Getting Data</h2>

 <p>
  Data of the DataView can be retrieved using the method <code>get</code>.
 </p>

 <pre class="prettyprint lang-js">
 var items = view.get();
 </pre>

 <p>
  Data of a DataView can be filtered and formatted again, in exactly the
  same way as in a DataSet. See sections
  <a href="dataset.html#Data_Manipulation">Data Manipulation</a> and
  <a href="dataset.html#Data_Selection">Data Selection</a> for more
  information.
 </p>

 <pre class="prettyprint lang-js">
 var items = view.get({
  fields: ['id', 'score'],
  filter: function (item) {
    return (item.score > 50);
  }
 });
 </pre>



 <h2 id="Subscriptions">Subscriptions</h2>
 <p>
  One can subscribe on changes in the DataView. Subscription works exactly
  the same as for DataSets. See the documentation on
  <a href="dataset.html#Subscriptions">subscriptions in a DataSet</a>
  for more information.
 </p>

 <pre class="prettyprint lang-js">
 // create a DataSet and a view on the data set
 var data = new vis.DataSet();
 var view = new vis.DataView({
  filter: function (item) {
    return (item.group == 2);
  }
 });

 // subscribe to any change in the DataView
 view.on('*', function (event, properties, senderId) {
  console.log('event:', event, 'properties:', properties, 'senderId:', senderId);
 });

 // add, update, and remove data in the DataSet...
 </pre>



 <h2 id="Data_Policy">Data Policy</h2>
 <p>
  All code and data is processed and rendered in the browser.
  No data is sent to any server.
 </p>

 </div>
 </body>
 </html>
--- a/docs/old/graph3d.html
+++ b/docs/old/graph3d.html
@ -1,673 +0,0 @@
 <html>

 <head>
  <title>vis.js | graph3d documentation</title>

  <link href='../css/prettify.css' type='text/css' rel='stylesheet'>
  <link href='../css/style.css' type='text/css' rel='stylesheet'>

  <script type="text/javascript" src="../js/prettify/prettify.js"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-61231638-1', 'auto');ga('send', 'pageview');</script></head>

 <body onload="prettyPrint();">
 <div id="container">

 <h1>Graph3d documentation</h1>

 <h2 id="Overview">Overview</h2>
 <p>
  Graph3d is an interactive visualization chart to draw data in a three dimensional
  graph. You can freely move and zoom in the graph by dragging and scrolling in the
  window. Graph3d also supports animation of a graph.
 </p>
 <p>
  Graph3d uses <a href="https://developer.mozilla.org/en-US/docs/Web/HTML/Canvas">HTML canvas</a>
  to render graphs, and can render up to a few thousands of data points smoothly.
 </p>

 <h2 id="Contents">Contents</h2>
 <ul>
  <li><a href="#Overview">Overview</a></li>
  <li><a href="#Loading">Loading</a></li>
  <li><a href="#Data_Format">Data Format</a></li>
  <li><a href="#Configuration_Options">Configuration Options</a></li>
  <li><a href="#Methods">Methods</a></li>
  <li><a href="#Events">Events</a></li>
  <li><a href="#Data_Policy">Data Policy</a></li>
 </ul>

 <h2 id="Example">Example</h2>
 <p>
  The following code shows how to create a Graph3d and provide it with data.
  More examples can be found in the <a href="../../examples">examples</a> directory.
 </p>

 <pre class="prettyprint lang-html">
 &lt;!DOCTYPE HTML&gt;
 &lt;html&gt;
 &lt;head&gt;
  &lt;title&gt;Graph 3D demo&lt;/title&gt;

  &lt;style&gt;
    body {font: 10pt arial;}
  &lt;/style&gt;

  &lt;script type="text/javascript" src="../../dist/vis.js"&gt;&lt;/script&gt;

  &lt;script type="text/javascript"&gt;
  var data = null;
  var graph = null;

  function custom(x, y) {
    return (Math.sin(x/50) * Math.cos(y/50) * 50 + 50);
  }

  // Called when the Visualization API is loaded.
  function drawVisualization() {
    // Create and populate a data table.
    var data = new vis.DataSet();
    // create some nice looking data with sin/cos
    var steps = 50;  // number of datapoints will be steps*steps
    var axisMax = 314;
    var axisStep = axisMax / steps;
    for (var x = 0; x &lt; axisMax; x+=axisStep) {
      for (var y = 0; y &lt; axisMax; y+=axisStep) {
        var value = custom(x, y);
        data.add({
          x: x,
          y: y,
          z: value,
          style: value
        });
      }
    }

    // specify options
    var options = {
      width:  '600px',
      height: '600px',
      style: 'surface',
      showPerspective: true,
      showGrid: true,
      showShadow: false,
      keepAspectRatio: true,
      verticalRatio: 0.5
    };

    // create a graph3d
    var container = document.getElementById('mygraph');
    graph3d = new vis.Graph3d(container, data, options);
  }
  &lt;/script&gt;
 &lt;/head&gt;

 &lt;body onload="drawVisualization();"&gt;
  &lt;div id="mygraph"&gt;&lt;/div&gt;
 &lt;/body&gt;
 &lt;/html&gt;

 </pre>


 <h2 id="Loading">Loading</h2>

 <p>
  The class name of the Graph3d is <code>vis.Graph3d</code>.
  When constructing a Graph3d, an HTML DOM container must be provided to attach
  the graph to. Optionally, data an options can be provided.
  Data is a vis <code>DataSet</code> or an <code>Array</code>, described in
  section <a href="#Data_Format">Data Format</a>.
  Options is a name-value map in the JSON format. The available options
  are described in section <a href="#Configuration_Options">Configuration Options</a>.
 </p>
 <pre class="prettyprint lang-js">var graph = new vis.Graph3d(container [, data] [, options]);</pre>

 <p>
  Data and options can be set or changed later on using the functions
  <code>Graph3d.setData(data)</code> and <code>Graph3d.setOptions(options)</code>.
 </p>

 <h2 id="Data_Format">Data Format</h2>
 <p>
  Graph3d can load data from an <code>Array</code>, a <code>DataSet</code> or a <code>DataView</code>.
  JSON objects are added to this DataSet by using the <code>add()</code> function.
  Data points must have properties <code>x</code>, <code>y</code>, and <code>z</code>,
  and can optionally have a property <code>style</code> and <code>filter</code>.

 <h3>Definition</h3>
 <p>
  The DataSet JSON objects are defined as:
 </p>

 <table>
  <tr>
    <th>Name</th>
    <th>Type</th>
    <th>Required</th>
    <th>Description</th>
  </tr>
  <tr>
    <td>x</td>
    <td>number</td>
    <td>yes</td>
    <td>Location on the x-axis.</td>
  </tr>
  <tr>
    <td>y</td>
    <td>number</td>
    <td>yes</td>
    <td>Location on the y-axis.</td>
  </tr>
  <tr>
    <td>z</td>
    <td>number</td>
    <td>yes</td>
    <td>Location on the z-axis.</td>
  </tr>
  <tr>
    <td>style</td>
    <td>number</td>
    <td>no</td>
    <td>The data value, required for graph styles <code>dot-color</code> and
      <code>dot-size</code>.
    </td>
  </tr>
  <tr>
    <td>filter</td>
    <td>*</td>
    <td>no</td>
    <td>Filter values used for the animation.
      This column may have any type, such as a number, string, or Date.</td>
  </tr>
 </table>



 <h2 id="Configuration_Options">Configuration Options</h2>

 <p>
  Options can be used to customize the graph. Options are defined as a JSON object.
  All options are optional.
 </p>

 <pre class="prettyprint lang-js">
 var options = {
    width:  '100%',
    height: '400px',
    style: 'surface'
 };
 </pre>

 <p>
  The following options are available.
 </p>

 <table>
 <tr>
  <th>Name</th>
  <th>Type</th>
  <th>Default</th>
  <th>Description</th>
 </tr>

 <tr>
  <td>animationInterval</td>
  <td>number</td>
  <td>1000</td>
  <td>The animation interval in milliseconds. This determines how fast
    the animation runs.</td>
 </tr>
 <tr>
  <td>animationPreload</td>
  <td>boolean</td>
  <td>false</td>
  <td>If false, the animation frames are loaded as soon as they are requested.
    if <code>animationPreload</code> is true, the graph will automatically load
    all frames in the background, resulting in a smoother animation as soon as
    all frames are loaded. The load progress is shown on screen.</td>
 </tr>
 <tr>
  <td>animationAutoStart</td>
  <td>boolean</td>
  <td>false</td>
  <td>If true, the animation starts playing automatically after the graph
    is created.</td>
 </tr>

 <tr>
  <td>backgroundColor</td>
  <td>string or Object</td>
  <td>'white'</td>
  <td>The background color for the main area of the chart.
    Can be either a simple HTML color string, for example: 'red' or '#00cc00',
    or an object with the following properties.</td>
 </tr>
 <tr>
  <td>backgroundColor.stroke</td>
  <td>string</td>
  <td>'gray'</td>
  <td>The color of the chart border, as an HTML color string.</td>
 </tr>
 <tr>
  <td>backgroundColor.strokeWidth</td>
  <td>number</td>
  <td>1</td>
  <td>The border width, in pixels.</td>
 </tr>
 <tr>
  <td>backgroundColor.fill</td>
  <td>string</td>
  <td>'white'</td>
  <td>The chart fill color, as an HTML color string.</td>
 </tr>

 <tr>
  <td>cameraPosition</td>
  <td>Object</td>
  <td>{horizontal:&nbsp;1.0, vertical:&nbsp;0.5, distance:&nbsp;1.7}</td>
  <td>Set the initial rotation and position of the camera.
    The object <code>cameraPosition</code> contains three parameters:
    <code>horizontal</code>, <code>vertical</code>, and <code>distance</code>.
    Parameter <code>horizontal</code> is a value in radians and can have any
    value (but normally in the range of 0 and 2*Pi).
    Parameter <code>vertical</code> is a value in radians between 0 and 0.5*Pi.
    Parameter <code>distance</code> is the (normalized) distance from the
    camera to the center of the graph, in the range of 0.71 to 5.0. A
    larger distance puts the graph further away, making it smaller.
    All parameters are optional.
 </tr>

 <tr>
  <td>height</td>
  <td>string</td>
  <td>'400px'</td>
  <td>The height of the graph in pixels or as a percentage.</td>
 </tr>

 <tr>
  <td>keepAspectRatio</td>
  <td>boolean</td>
  <td>true</td>
  <td>If <code>keepAspectRatio</code> is true, the x-axis and the y-axis
    keep their aspect ratio. If false, the axes are scaled such that they
    both have the same, maximum with.</td>
 </tr>

 <tr>
  <td>showAnimationControls</td>
  <td>boolean</td>
  <td>true</td>
  <td>If true, animation controls are created at the bottom of the Graph.
    The animation controls consists of buttons previous, start/stop, next,
    and a slider showing the current frame.
    Only applicable when the provided data contains an animation.</td>
 </tr>
 <tr>
  <td>showGrid</td>
  <td>boolean</td>
  <td>true</td>
  <td>If true, grid lines are draw in the x-y surface (the bottom of the 3d
    graph).</td>
 </tr>
 <tr>
  <td>showPerspective</td>
  <td>boolean</td>
  <td>true</td>
  <td>If true, the graph is drawn in perspective: points and lines which
    are further away are drawn smaller.
    Note that the graph currently does not support a gray colored bottom side
    when drawn in perspective.
  </td>
 </tr>
 <tr>
  <td>showShadow</td>
  <td>boolean</td>
  <td>false</td>
  <td>Show shadow on the graph.</td>
 </tr>
 <tr>
  <td>style</td>
  <td>string</td>
  <td>'dot'</td>
  <td>The style of the 3d graph. Available styles:
    <code>bar</code>,
    <code>bar-color</code>,
    <code>bar-size</code>,
    <code>dot</code>,
    <code>dot-line</code>,
    <code>dot-color</code>,
    <code>dot-size</code>,
    <code>line</code>,
    <code>grid</code>,
    or <code>surface</code></td>
 </tr>

 <tr>
  <td>tooltip</td>
  <td>boolean | function</td>
  <td>false</td>
  <td>Show a tooltip showing the values of the hovered data point.
    The contents of the tooltip can be customized by providing a callback
    function as <code>tooltip</code>. In this case the function is called
    with an object containing parameters <code>x</code>,
    <code>y</code>, and <code>z</code> argument,
    and must return a string which may contain HTML.
  </td>
 </tr>

 <tr>
  <td>valueMax</td>
  <td>number</td>
  <td>none</td>
  <td>The maximum value for the value-axis. Only available in combination
    with the styles <code>dot-color</code> and <code>dot-size</code>.</td>
 </tr>
 <tr>
  <td>valueMin</td>
  <td>number</td>
  <td>none</td>
  <td>The minimum value for the value-axis. Only available in combination
    with the styles <code>dot-color</code> and <code>dot-size</code>.</td>