ViSUS WebViewer
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/src/VisusGetTileSources.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/openseadragon/master/images/",
showNavigator: true,
debugMode: false,
tileSources: getTileSources("http://atlantis.sci.utah.edu", "david_subsampled", 29280, 70416, 32, 512, bXRoad)
});
</script>
</body>
</html>
This small piece of code 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 viewer 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)
You can get the x_dim and y_dim information querying the server using the following API call:
curl -A visus "http://atlantis.sci.utah.edu/mod_visus?action=readdataset&dataset=david_subsampled"
For more information about the server API refer to ViSUS Server Supported Requests.
This call will produce the following output:
(version) 6 (logic_to_physic) 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 (box) 0 29279 0 70415 0 0 0 0 0 0 (fields) data uint8[3] compressed format(0) default_value(0) (bits) V11010101010101010101010101010101 (bitsperblock) 16 (blocksperfile) 256 (interleave block) 0 (time) 0 3 time_%02d/
Looking at the (box) field we can obtain the dimensions of the data. The box field represents the extents in N dimensions of the dataset. So for example this dataset has x_dim=29280 (29279 - 0 + 1), and y_dim 70416. The bitmask_length can be obtained counting the digits in the (bitmask) field of the dataset, in this case 32.
For more code examples go to our GitHub repo: GItHub ViSUS WebViewer