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384 lines
16 KiB
HTML
384 lines
16 KiB
HTML
<!DOCTYPE html>
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<html lang="en-US">
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<head>
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<meta charset="UTF-8">
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<meta http-equiv="X-UA-Compatible" content="IE=Edge">
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<meta name="viewport" content="initial-scale=1.0, user-scalable=no, width=device-width">
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<script>
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var gaProperty = 'UA-2577926-1';
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// Disable tracking if the opt-out cookie exists.
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var disableStr = 'ga-disable-' + gaProperty;
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if (document.cookie.indexOf(disableStr + '=true') > -1) {
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window[disableStr] = true;
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}
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function gaOptout() {
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document.cookie = disableStr + '=true; expires=Thu, 31 Dec 2099 23:59:59 UTC; path=/';
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window[disableStr] = true;
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}
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function gaOptoutRevoke() {
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document.cookie = disableStr + '=false; expires=Thu, 31 Dec 2099 23:59:59 UTC; path=/';
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window[disableStr] = false;
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}
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</script>
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<!-- Global site tag (gtag.js) - Google Analytics -->
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<script async src="https://www.googletagmanager.com/gtag/js?id=UA-2577926-1"></script>
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<script>
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window.dataLayer = window.dataLayer || [];
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function gtag(){dataLayer.push(arguments);}
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gtag('js', new Date());
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gtag('config', 'UA-2577926-1', { 'anonymize_ip': true });
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</script>
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<link rel="stylesheet" type="text/css" href="//cdnjs.cloudflare.com/ajax/libs/cookieconsent2/3.1.0/cookieconsent.min.css" />
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<script src="//cdnjs.cloudflare.com/ajax/libs/cookieconsent2/3.1.0/cookieconsent.min.js"></script>
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<script src="https://unpkg.com/lz-string@1.4.4/libs/lz-string.min.js"></script>
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<script>
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window.addEventListener("load", function() {
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window.cookieconsent.initialise({
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'palette': {
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'popup': {
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'background': '#eaf7f7',
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'text': '#5c7291'
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},
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'button': {
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'background': '#56cbdb',
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'text': '#ffffff'
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}
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},
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'theme': 'edgeless',
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'type': 'opt-out',
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'onInitialise': function (status) {
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if (!this.hasConsented()) {
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gaOptout()
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}
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},
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'onStatusChange': function(status, chosenBefore) {
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if (!this.hasConsented()) {
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gaOptout()
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}
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},
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'onRevokeChoice': function() {
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gaOptoutRevoke()
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}
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})
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});
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</script>
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<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" type="text/css">
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<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.0/css/bootstrap.min.css" type="text/css">
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<link rel="stylesheet" href="./resources/prism/prism-1.20.0.css" type="text/css">
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<link rel="stylesheet" href="./css/ol.css" type="text/css">
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<link rel="stylesheet" href="./resources/layout.css" type="text/css">
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<script src="https://unpkg.com/elm-pep"></script>
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<script src="https://cdn.polyfill.io/v3/polyfill.min.js?features=fetch,requestAnimationFrame,Element.prototype.classList,TextDecoder"></script>
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<script src="https://cdnjs.cloudflare.com/ajax/libs/core-js/3.18.3/minified.js"></script>
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<link rel="stylesheet" href="utfgrid.css">
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<title>UTFGrid</title>
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</head>
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<body>
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<header class="navbar navbar-expand-sm navbar-dark mb-3 py-0" role="navigation">
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<a class="navbar-brand" href="https://openlayers.org/"><img src="./resources/logo-70x70.png" alt=""> OpenLayers</a>
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<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#olmenu" aria-controls="olmenu" aria-expanded="false" aria-label="Toggle navigation">
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<span class="navbar-toggler-icon"></span>
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</button>
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<!-- menu items that get hidden below 768px width -->
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<nav class="collapse navbar-collapse" id="olmenu">
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<ul class="nav navbar-nav ml-auto">
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<li class="nav-item dropdown">
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<a class="nav-link dropdown-toggle" href="#" id="docdropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Docs</a>
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<div class="dropdown-menu dropdown-menu-right mb-3" aria-labelledby="docdropdown">
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<a class="dropdown-item" href="../doc/">Docs</a>
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<div class="dropdown-divider"></div>
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<a class="dropdown-item" href="../doc/quickstart.html"><i class="fa fa-check fa-fw mr-2 fa-lg"></i>Quick Start</a>
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<a class="dropdown-item" href="../doc/faq.html"><i class="fa fa-question fa-fw mr-2 fa-lg"></i>FAQ</a>
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<a class="dropdown-item" href="../doc/tutorials/"><i class="fa fa-book fa-fw mr-2 fa-lg"></i>Tutorials</a>
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<a class="dropdown-item" href="/workshop/"><i class="fa fa-graduation-cap fa-fw mr-2 fa-lg"></i>Workshop</a>
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<div class="dropdown-divider"></div>
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<a class="dropdown-item" href="https://stackoverflow.com/questions/tagged/openlayers"><i class="fa fa-stack-overflow fa-fw mr-2"></i>Ask a Question</a>
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</div>
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</li>
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<li class="nav-item active"><a class="nav-link" href="../examples/">Examples</a></li>
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<li class="nav-item"><a class="nav-link" href="../apidoc/"><i class="fa fa-sitemap mr-1"></i>API</a></li>
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<li class="nav-item dropdown">
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<a class="nav-link dropdown-toggle" href="#" id="codedropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Code</a>
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<div class="dropdown-menu dropdown-menu-right mb-3" aria-labelledby="codedropdown">
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<a class="dropdown-item" href="https://github.com/openlayers/openlayers"><i class="fa fa-github fa-fw mr-2 fa-lg"></i>Repository</a>
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<a class="dropdown-item" href="/download/"><i class="fa fa-download fa-fw mr-2 fa-lg"></i>Download</a>
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</div>
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</li>
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</ul>
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</nav>
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</header>
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<div class="container-fluid line-numbers">
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<div id="latest-check" class="alert alert-warning alert-dismissible" role="alert" style="display:none">
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<button id="latest-dismiss" type="button" class="close" data-dismiss="alert" aria-label="Close"><span aria-hidden="true">×</span></button>
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This example uses OpenLayers v<span>6.12.0</span>. The <a id="latest-link" href="#" class="alert-link">latest</a> is v<span id="latest-version"></span>.
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</div>
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<div class="row-fluid">
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<a href="#" id="codepen-button" class="btn btn-link float-right">
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<i class="fa fa-codepen fa-lg"></i> Edit
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</a>
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<div class="span12">
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<h4 id="title">UTFGrid</h4>
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<p class="tags">
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<span class="badge-group">
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<a
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href="./index.html?q=utfgrid" class="badge badge-info">utfgrid</a
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><a
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class="badge badge-info tag-modal-toggle text-white"
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data-toggle="modal"
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data-target="#tag-example-list"
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data-title="utfgrid"
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data-content="
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<a class="list-group-item list-group-item-action active" href="./utfgrid.html">UTFGrid</a>"
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tabindex="0"
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>1</a>
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</span>
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<span class="badge-group">
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<a
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href="./index.html?q=tilejson" class="badge badge-info">tilejson</a
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><a
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class="badge badge-info tag-modal-toggle text-white"
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data-toggle="modal"
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data-target="#tag-example-list"
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data-title="tilejson"
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data-content="
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<a class="list-group-item list-group-item-action" href="./layer-group.html">Layer Groups</a>
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<a class="list-group-item list-group-item-action" href="./layer-extent.html">Limited Layer Extent</a>
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<a class="list-group-item list-group-item-action" href="./semi-transparent-layer.html">Semi-Transparent Layer</a>
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<a class="list-group-item list-group-item-action" href="./tilejson.html">TileJSON</a>
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<a class="list-group-item list-group-item-action active" href="./utfgrid.html">UTFGrid</a>"
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tabindex="0"
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>5</a>
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</span>
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</p>
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<div class="modal modal-tag-example" id="tag-example-list" tabindex="-1" role="dialog" aria-labelledby="tag-example-title" aria-hidden="true">
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<div class="modal-dialog modal-dialog-scrollable" role="document">
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<div class="modal-content">
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<div class="modal-header">
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<h5 class="modal-title" id="tag-example-title"></h5>
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<button type="button" class="close" data-dismiss="modal" aria-label="Close">
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<span aria-hidden="true">×</span>
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</button>
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</div>
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<div class="modal-body">
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<div class="list-group"></div>
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</div>
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</div>
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</div>
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</div>
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<div id="map" class="map"></div>
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<div style="display: none;">
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<!-- Overlay with the country info -->
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<div id="country-info">
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<div id="country-name"> </div>
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<img id="country-flag" src="" />
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</div>
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</div>
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</div>
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<form method="POST" id="codepen-form" target="_blank" action="https://codesandbox.io/api/v1/sandboxes/define">
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<input id="codesandbox-params" type="hidden" name="parameters">
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</form>
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</div>
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<div class="row-fluid">
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<div class="span12">
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<p id="shortdesc">This example shows how to read data from a UTFGrid source.</p>
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<div id="docs"><p>Point to a country to see its name and flag.</p> Tiles made with <a href="https://tilemill-project.github.io/tilemill/">TileMill</a>. Hosting on <a href="https://www.mapbox.com/">mapbox.com</a> or with open-source <a href="https://github.com/maptiler/tileserver-php">TileServer</a>.
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</div>
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</div>
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</div>
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<div class="row-fluid">
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<h5 class="source-heading">main.js</h5>
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<pre><code id="example-js-source" class="language-js">import 'ol/ol.css';
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import Map from 'ol/Map';
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import Overlay from 'ol/Overlay';
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import TileJSON from 'ol/source/TileJSON';
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import TileLayer from 'ol/layer/Tile';
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import UTFGrid from 'ol/source/UTFGrid';
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import View from 'ol/View';
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const key =
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'Your Mapbox access token from https://mapbox.com/ here';
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const mapLayer = new TileLayer({
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source: new TileJSON({
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url:
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'https://api.tiles.mapbox.com/v4/mapbox.geography-class.json?secure&access_token=' +
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key,
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}),
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});
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const gridSource = new UTFGrid({
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url:
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'https://api.tiles.mapbox.com/v4/mapbox.geography-class.json?secure&access_token=' +
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key,
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});
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const gridLayer = new TileLayer({source: gridSource});
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const view = new View({
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center: [0, 0],
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zoom: 1,
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});
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const mapElement = document.getElementById('map');
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const map = new Map({
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layers: [mapLayer, gridLayer],
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target: mapElement,
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view: view,
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});
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const infoElement = document.getElementById('country-info');
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const flagElement = document.getElementById('country-flag');
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const nameElement = document.getElementById('country-name');
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const infoOverlay = new Overlay({
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element: infoElement,
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offset: [15, 15],
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stopEvent: false,
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});
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map.addOverlay(infoOverlay);
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const displayCountryInfo = function (coordinate) {
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const viewResolution = /** @type {number} */ (view.getResolution());
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gridSource.forDataAtCoordinateAndResolution(
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coordinate,
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viewResolution,
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function (data) {
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// If you want to use the template from the TileJSON,
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// load the mustache.js library separately and call
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// info.innerHTML = Mustache.render(gridSource.getTemplate(), data);
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mapElement.style.cursor = data ? 'pointer' : '';
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if (data) {
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flagElement.src = 'data:image/png;base64,' + data['flag_png'];
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nameElement.innerHTML = data['admin'];
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}
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infoOverlay.setPosition(data ? coordinate : undefined);
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}
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);
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};
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map.on('pointermove', function (evt) {
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if (evt.dragging) {
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return;
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}
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const coordinate = map.getEventCoordinate(evt.originalEvent);
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displayCountryInfo(coordinate);
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});
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map.on('click', function (evt) {
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displayCountryInfo(evt.coordinate);
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});
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</code></pre>
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</div>
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<div class="row-fluid">
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<h5 class="source-heading">index.html</h5>
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<pre><code id="example-html-source" class="language-markup"><!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<title>UTFGrid</title>
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<!-- Pointer events polyfill for old browsers, see https://caniuse.com/#feat=pointer -->
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<script src="https://unpkg.com/elm-pep"></script>
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<!-- The lines below are only needed for old environments like Internet Explorer and Android 4.x -->
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<script src="https://cdn.polyfill.io/v3/polyfill.min.js?features=fetch,requestAnimationFrame,Element.prototype.classList,TextDecoder"></script>
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<script src="https://cdnjs.cloudflare.com/ajax/libs/core-js/3.18.3/minified.js"></script>
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<style>
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.map {
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width: 100%;
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height:400px;
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}
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#country-name {
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color: black;
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font-size: 12pt;
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font-weight: bold;
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text-shadow: white 0.1em 0.1em 0.2em;
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}
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</style>
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</head>
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<body>
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<div id="map" class="map"></div>
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<div style="display: none;">
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<!-- Overlay with the country info -->
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<div id="country-info">
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<div id="country-name">&nbsp;</div>
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<img id="country-flag" src="" />
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</div>
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</div>
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<script src="main.js"></script>
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</body>
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</html></code></pre>
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</div>
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<div class="row-fluid">
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<h5 class="source-heading">package.json</h5>
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<pre><code id="example-pkg-source" class="language-json">{
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"name": "utfgrid",
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"dependencies": {
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"ol": "6.12.0"
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},
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"devDependencies": {
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"parcel": "^2.0.0"
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},
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"scripts": {
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"start": "parcel index.html",
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"build": "parcel build --public-url . index.html"
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}
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}</code></pre>
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</div>
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</div>
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<script src="https://code.jquery.com/jquery-3.5.1.min.js"></script>
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<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.0/js/bootstrap.bundle.min.js"></script>
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<script src="./resources/prism/prism-1.20.0.min.js"></script>
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<script src="./resources/common.js"></script>
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<script src="common.js"></script>
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<script src="utfgrid.js"></script>
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<script>
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$('#tag-example-list').on('show.bs.modal', function (event) {
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const button = $(event.relatedTarget); // Button that triggered the modal
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const title = button.data('title');
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const content = button.data('content');
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const modal = $(this)
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modal.find('.modal-title').text(title);
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modal.find('.modal-body').html(content);
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});
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var packageUrl = 'https://raw.githubusercontent.com/openlayers/openlayers.github.io/build/package.json';
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fetch(packageUrl).then(function(response) {
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return response.json();
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}).then(function(json) {
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var latestVersion = json.version;
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document.getElementById('latest-version').innerHTML = latestVersion;
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var url = window.location.href;
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var branchSearch = url.match(/\/([^\/]*)\/examples\//);
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var cookieText = 'dismissed=-' + latestVersion + '-';
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var dismissed = document.cookie.indexOf(cookieText) != -1;
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if (branchSearch && !dismissed && /^v[0-9\.]*$/.test(branchSearch[1]) && '6.12.0' != latestVersion) {
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var link = url.replace(branchSearch[0], '/latest/examples/');
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fetch(link, {method: 'head'}).then(function(response) {
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var a = document.getElementById('latest-link');
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a.href = response.status == 200 ? link : '../../latest/examples/';
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});
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var latestCheck = document.getElementById('latest-check');
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latestCheck.style.display = '';
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document.getElementById('latest-dismiss').onclick = function() {
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latestCheck.style.display = 'none';
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document.cookie = cookieText;
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}
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}
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});
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</script>
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</body>
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</html>
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