Difference between revisions of "ViSUS WebViewer"

Revision as of 21:08, 29 May 2018

You can visualize interactively your data from a browser putting a simple javascript script in your webpage, as in the following example:

<html>
<head>
    <meta charset='utf-8'>
    <title>David Powered by Visus</title>
    <script src="https://openseadragon.github.io/openseadragon/openseadragon.min.js"></script>
    <script src="https://rawgit.com/sci-visus/visus_javascript/master/visus2.js" ></script>
</head>

<body>

    <div id="openseadragon1" class="openseadragon" style="width:100%; height:100%;background-color: black;"></div>
    <script type="text/javascript">
        var bXRoad=false;
        OpenSeadragon({
            id: "openseadragon1",
            prefixUrl: "https://raw.githubusercontent.com/openseadragon/svg-overlay/master/openseadragon/images/",
            showNavigator: true,
            debugMode: false,
            tileSources: getTileSources("http://atlantis.sci.utah.edu", "david_subsampled", 29280, 70416, 32, 512, bXRoad)
        });
    </script>

</body>
</html>

This will include a ViSUS WebViewer in your page that will allow to navigate one or more high resolution images (i.e. in this example the dataset called "david_subsampled").

You can see a live demo of this script at this link.

To customize the viewer script to visualize your data you need to change the getTileSources parameter according to the following definition:

getTileSources(server_URL, dataset_name, x_dim, y_dim,  bitmask_length-1, tile_size, false)

In particular the bitmask_length can be obtained counting the digits in the (bitmask) field of your IDX file.

For more code examples go to our GitHub repo: GItHub ViSUS WebViewer

@@ Line 34: / Line 34: @@
 To customize the viewer script to visualize your data you need to change the getTileSources parameter according to the following definition:
-<code>getTileSources(server_URL, dataset_name, x_dim, y_dim,  bitmask_length-1, tile_size, false)</code>
+<syntaxhighlight lang="javascript">
+getTileSources(server_URL, dataset_name, x_dim, y_dim,  bitmask_length-1, tile_size, false)</syntaxhighlight>
 In particular the ''bitmask_length'' can be obtained counting the digits in the (bitmask) field of your IDX file.
 For more code examples go to our GitHub repo: [https://github.com/sci-visus/visus_javascript GItHub ViSUS WebViewer]