mirror/openseadragon
1
0
Fork 0
mirror of https://github.com/openseadragon/openseadragon.git synced 2024-11-25 14:46:10 +03:00
Code Issues Projects Releases Wiki Activity

- Add memorycheck-with-simple-image demo to reproduce "Total canvas memory use exceeds the maximum limit" warning and then "null is not an object (evaluating 'smallContext.drawImage')" error.

Browse Source 
(To get them, click Create button 12 times on "iPad Air (3rd generation) -- 13.3" Simulator on Mac with Web Inspector by Safari.)
This commit is contained in:
Takuma Kira 2020-03-18 14:36:56 +09:00
parent 519cbaccde
commit abc11e3eb6
1 changed files with 60 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

60
test/demo/memorycheck-with-simple-image.html Normal file
View File

@ -0,0 +1,60 @@
<!DOCTYPE html>
<html>
<head>
<title>OpenSeadragon Memory Check With Simple Image Demo</title>
<script type="text/javascript" src='../../build/openseadragon/openseadragon.js'></script>
<style type="text/css">
.openseadragon1 {
width: 800px;
height: 600px;
}
</style>
</head>
<body>
<div>
Simple demo page to monitor OpenSeadragon Memory Usage.
</div>
<button onclick="createViewer()">Create</button>
<button onclick="destroyViewer()">Destroy</button>
<div id="contentDiv" class="openseadragon1"></div>
<script type="text/javascript">
var _viewer;
var generateUniqueHash = (function() {
var counter = 0;
return function() {
return "openseadragon_" + (counter++);
};
})();
function createViewer() {
if ( _viewer ) {
destroyViewer();
}
_viewer = OpenSeadragon({
element: document.getElementById("contentDiv"),
showNavigationControl: false,
prefixUrl: "../../build/openseadragon/images/",
hash: generateUniqueHash(), //this is only needed if you want to instantiate more than one viewer at a time.
tileSources: {
type: "image",
url: "../data/CCyan.png"
}
});
}
function destroyViewer() {
if ( _viewer ) {
_viewer.destroy();
}
_viewer = null;
}
</script>
</body>
</html>