2014-06-18 21:35:23 +04:00
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<!DOCTYPE html>
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<html>
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<head>
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<title>OpenSeadragon Memory Check Demo</title>
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<script type="text/javascript" src='../../build/openseadragon/openseadragon.js'></script>
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<style type="text/css">
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.openseadragon1 {
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width: 800px;
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height: 600px;
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}
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</style>
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</head>
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<body>
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<div>
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Simple demo page to monitor OpenSeadragon Memory Usage.
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</div>
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<button onclick="createViewer()">Create</button>
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<button onclick="destroyViewer()">Destroy</button>
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<div id="contentDiv" class="openseadragon1"></div>
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<script type="text/javascript">
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var _viewer;
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2015-06-11 17:49:32 +03:00
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2014-06-18 21:35:23 +04:00
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var generateUniqueHash = (function() {
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var counter = 0;
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return function() {
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return "openseadragon_" + (counter++);
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};
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})();
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2015-06-11 17:49:32 +03:00
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2014-06-18 21:35:23 +04:00
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function createViewer() {
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if ( _viewer ) {
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destroyViewer();
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}
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2015-06-11 17:49:32 +03:00
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2014-06-18 21:35:23 +04:00
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_viewer = OpenSeadragon({
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element: document.getElementById("contentDiv"),
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showNavigationControl: false,
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prefixUrl: "../../build/openseadragon/images/",
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hash: generateUniqueHash(), //this is only needed if you want to instantiate more than one viewer at a time.
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tileSources: "../data/testpattern.dzi"
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});
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}
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2015-06-11 17:49:32 +03:00
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2014-06-18 21:35:23 +04:00
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function destroyViewer() {
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if ( _viewer ) {
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_viewer.destroy();
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}
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_viewer = null;
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}
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</script>
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</body>
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</html>
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