2014-06-21 03:18:04 +04:00
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<!DOCTYPE html>
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<html>
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<head>
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2014-06-24 03:10:01 +04:00
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<title>OpenSeadragon fitBoundsWithConstraints() Demo</title>
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2014-06-21 03:18:04 +04:00
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<script type="text/javascript" src='../../build/openseadragon/openseadragon.js'></script>
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2022-12-07 00:42:13 +03:00
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<script type="text/javascript" src='../lib/jquery-1.9.1.min.js'></script>
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2014-06-21 03:18:04 +04:00
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<style type="text/css">
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.openseadragon1 {
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width: 800px;
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2022-12-07 00:42:13 +03:00
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height: 500px;
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border:thin black solid;
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margin-right:20px;
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2014-06-21 03:18:04 +04:00
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}
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2022-12-07 01:21:03 +03:00
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#buttons button{
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width:10em;
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text-align:center;
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margin:5px;
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2014-06-21 03:18:04 +04:00
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}
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2022-12-07 00:42:13 +03:00
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.layout{
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display:grid;
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grid-template-columns:auto 1fr;
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padding:10px;
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}
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.method{
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border:medium gray solid;
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margin:2px;
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background-color:rgb(240, 240, 240)
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}
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.method.selected{
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border:medium red solid;
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background-color: lightgoldenrodyellow;
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}
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2014-06-21 03:18:04 +04:00
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</style>
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</head>
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<body>
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2022-12-07 00:42:13 +03:00
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<div class="layout">
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<div id="contentDiv" class="openseadragon1"></div>
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<div id="controls">
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<div>
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Simple demo page to show viewport.fitBounds() with and without constraints. The viewer
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is set up with visibilityRatio = 1 and constrainDuringPan = true to clearly demonstrate the
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constraints.
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</div>
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<h3>Pick a method to use:</h3>
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<div>
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<div class="method selected" data-value="0">
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<pre>viewport.fitBounds(bounds); //Ignores constraints</pre>
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</div>
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<div class="method" data-value="1">
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<pre>viewport.fitBoundsWithConstraints(bounds);</pre>
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</div>
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<div class="method" data-value="4">
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<pre>viewport.fitBoundsWithConstraints(bounds, true); //immediate</pre>
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</div>
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<div class="method" data-value="2">
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<pre>//Initially ignore constraints
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viewport.fitBounds(bounds);
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//Apply constraints after 1 second delay
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setTimeout(() => viewport.applyConstraints(), 1000);</pre>
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</div>
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</div>
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<button id="rotate">Rotate the viewer</button>
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<h3>Click to fit overlay bounds:</h3>
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2022-12-07 01:21:03 +03:00
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<div id="buttons"></div>
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2022-12-07 00:42:13 +03:00
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<h4>overlay.getBounds(viewer.viewport):</h4>
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<pre class="bounds">Pick an overlay above to show the bounds</pre>
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</div>
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2014-06-21 03:18:04 +04:00
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</div>
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2014-08-13 03:44:53 +04:00
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2014-06-21 03:18:04 +04:00
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<script type="text/javascript">
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2022-12-07 00:42:13 +03:00
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var viewer;
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2014-06-21 03:18:04 +04:00
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var _fittingMethod = 0;
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2022-12-07 00:42:13 +03:00
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viewer = window.viewer = OpenSeadragon({
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id: "contentDiv",
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2014-06-21 03:18:04 +04:00
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prefixUrl: "../../build/openseadragon/images/",
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2022-12-07 00:42:13 +03:00
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tileSources: "../data/testpattern.dzi",
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minZoomImageRatio: 0,
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maxZoomPixelRatio: 10,
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2022-12-10 14:57:53 +03:00
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visibilityRatio:1,
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2022-12-07 00:42:13 +03:00
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constrainDuringPan:true,
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});
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viewer.addHandler("open", function(event) {
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var elt = document.createElement("div");
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elt.className = "runtime-overlay";
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elt.style.background = "green";
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elt.style.outline = "3px solid red";
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elt.style.opacity = "0.7";
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elt.textContent = "Within the image";
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viewer.addOverlay({
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element: elt,
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location: new OpenSeadragon.Rect(0.21, 0.21, 0.099, 0.299),
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rotationMode: OpenSeadragon.OverlayRotationMode.BOUNDING_BOX
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});
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elt = document.createElement("div");
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elt.className = "runtime-overlay";
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elt.style.background = "white";
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elt.style.opacity = "0.5";
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elt.style.outline = "5px solid pink";
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elt.textContent = "Left edge rectangle";
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viewer.addOverlay({
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element: elt,
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location: new OpenSeadragon.Rect(-0.4, 0.7, 0.7, 0.15)
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});
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var elt = document.createElement("div");
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elt.className = "runtime-overlay";
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elt.style.background = "lightblue";
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elt.style.outline = "3px solid purple";
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elt.style.opacity = "0.7";
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elt.textContent = "Top right square";
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viewer.addOverlay({
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element: elt,
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location: new OpenSeadragon.Rect(0.9, -0.1, 0.2, 0.2),
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rotationMode: OpenSeadragon.OverlayRotationMode.BOUNDING_BOX
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});
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viewer.currentOverlays.forEach(overlay=>{
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var text = $(overlay.element).text();
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2022-12-07 01:21:03 +03:00
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var div=$('<div>').appendTo('#buttons');
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var buttons=$('<button>').text(text).appendTo(div).on('click',()=>{
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2022-12-07 00:42:13 +03:00
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var bounds = overlay.getBounds(viewer.viewport);
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$('.bounds').text(JSON.stringify(bounds,null,2));
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var _fittingMethod = parseInt($('.method.selected').data('value'));
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if (_fittingMethod === 0) {
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viewer.viewport.fitBounds(bounds, false);
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}
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else if (_fittingMethod === 1) {
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viewer.viewport.fitBoundsWithConstraints(bounds, false);
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}
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else if (_fittingMethod === 4) {
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viewer.viewport.fitBoundsWithConstraints(bounds, true);
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}
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else if (_fittingMethod === 2) {
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viewer.viewport.fitBounds(bounds, false);
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setTimeout(()=>viewer.viewport.applyConstraints(), 1000);
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2014-06-21 03:18:04 +04:00
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}
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2022-12-07 00:42:13 +03:00
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});
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})
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2022-12-10 15:02:16 +03:00
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viewer.viewport.zoomTo(0.5, null, true);
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2022-12-07 00:42:13 +03:00
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2014-06-21 03:18:04 +04:00
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});
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2022-12-07 00:42:13 +03:00
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$('.method').on('click',function(){
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$('.method').removeClass('selected');
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$(this).addClass('selected');
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})
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$("#rotate").click(function() {
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viewer.viewport.setRotation(viewer.viewport.getRotation() - 22.5);
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$("#degrees").text(viewer.viewport.getRotation() + "deg");
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2014-06-21 03:18:04 +04:00
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});
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2014-08-13 03:44:53 +04:00
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2014-06-21 03:18:04 +04:00
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</script>
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</body>
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</html>
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