<!DOCTYPE html>
<html>
<head>
<title>OpenSeadragon Coordinates Demo</title>
<script type="text/javascript" src='../../build/openseadragon/openseadragon.js'></script>
<script type="text/javascript" src='../lib/jquery-1.9.1.min.js'></script>
<style type="text/css">
.openseadragon1 {
width: 800px;
height: 600px;
}
</style>
</head>
<body>
<div>
Simple demo page to show OpenSeadragon coordinates system.
</div>
<div id="contentDiv" class="openseadragon1"></div>
<div>
<table border="1">
<tr>
<th></th>
<th>Window (pixel)</th>
<th>Container (pixel)</th>
<th>Image 1 - top left (pixel)</th>
<th>Image 2 - bottom right (pixel)</th>
<th>Viewport (point)</th>
</tr>
<tr>
<th>Cursor position</th>
<td id="windowPosition"></td>
<td id="containerPosition"></td>
<td id="image1Position"></td>
<td id="image2Position"></td>
<td id="viewportPosition"></td>
</tr>
<tr>
<th>Zoom</th>
<td>-</td>
<td>-</td>
<td id="image1Zoom"></td>
<td id="image2Zoom"></td>
<td id="viewportZoom"></td>
</tr>
</table>
</div>
<script type="text/javascript">
var viewer = OpenSeadragon({
// debugMode: true,
id: "contentDiv",
prefixUrl: "../../build/openseadragon/images/",
tileSources: [{
tileSource: "../data/testpattern.dzi"
},
{
tileSource: "../data/testpattern.dzi",
x: 1,
y: 1,
width: 0.5
}
],
showNavigator: true
});
function pointToString(point) {
return point.x.toPrecision(4) + "," + point.y.toPrecision(4);
}
var onMouseTrackerMove = function (event) {
var viewerX = event.position.x;
var viewerY = event.position.y;
var windowPoint = new OpenSeadragon.Point(viewerX, viewerY);
$("#windowPosition").text(pointToString(windowPoint));
var containerPoint = windowPoint.minus(
OpenSeadragon.getElementPosition(viewer.element));
$("#containerPosition").text(pointToString(containerPoint));
var image1 = viewer.world.getItemAt(0);
var imagePoint = image1.windowToImageCoordinates(windowPoint);
$("#image1Position").text(pointToString(imagePoint));
var image2 = viewer.world.getItemAt(1);
var imagePoint = image2.windowToImageCoordinates(windowPoint);
$("#image2Position").text(pointToString(imagePoint));
var viewportPoint = viewer.viewport.windowToViewportCoordinates(windowPoint);
$("#viewportPosition").text(pointToString(viewportPoint));
};
mouseTracker = new OpenSeadragon.MouseTracker({
element: document,
moveHandler: onMouseTrackerMove
}).setTracking(true);
function onAnimation() {
var viewportZoom = viewer.viewport.getZoom(true);
$("#viewportZoom").text(viewportZoom.toFixed(3));
var image1 = viewer.world.getItemAt(0);
var image1Zoom = image1.viewportToImageZoom(viewportZoom);
$("#image1Zoom").text(image1Zoom.toFixed(3));
var image2 = viewer.world.getItemAt(1);
var image2Zoom = image2.viewportToImageZoom(viewportZoom);
$("#image2Zoom").text(image2Zoom.toFixed(3));
}
viewer.addHandler("animation", onAnimation);
</script>
</body>
</html>