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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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<script src="https://html2canvas.hertzen.com/dist/html2canvas.min.js"></script>
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<script src="https://cdnjs.cloudflare.com/ajax/libs/jspdf/2.3.1/jspdf.umd.min.js"></script>
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<link rel="stylesheet" href="print-to-scale.css">
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<title>Print to scale example</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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</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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<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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<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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<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">Print to scale example</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=print" class="badge badge-info">print</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="print"
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data-content="
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<a class="list-group-item list-group-item-action active" href="./print-to-scale.html">Print to scale example</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=printing" class="badge badge-info">printing</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="printing"
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data-content="
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<a class="list-group-item list-group-item-action active" href="./print-to-scale.html">Print to scale example</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=scale" class="badge badge-info">scale</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="scale"
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data-content="
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<a class="list-group-item list-group-item-action" href="./icon-scale.html">Icon Scale</a>
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<a class="list-group-item list-group-item-action active" href="./print-to-scale.html">Print to scale example</a>
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<a class="list-group-item list-group-item-action" href="./projection-and-scale.html">Projection and Scale</a>
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<a class="list-group-item list-group-item-action" href="./modify-scale-and-rotate.html">Scale and Rotate using Modify Interaction</a>"
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tabindex="0"
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>4</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=scaleline" class="badge badge-info">scaleline</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"
|
|
|
data-title="scaleline"
|
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|
data-content="
|
|
|
<a class="list-group-item list-group-item-action" href="./scaleline-indiana-east.html">OpenStreetMap Reprojection with ScaleLine Control</a>
|
|
|
<a class="list-group-item list-group-item-action active" href="./print-to-scale.html">Print to scale example</a>"
|
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|
tabindex="0"
|
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>2</a>
|
|
|
</span>
|
|
|
<span class="badge-group">
|
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|
<a
|
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|
href="./index.html?q=export" class="badge badge-info">export</a
|
|
|
><a
|
|
|
class="badge badge-info tag-modal-toggle text-white"
|
|
|
data-toggle="modal"
|
|
|
data-target="#tag-example-list"
|
|
|
data-title="export"
|
|
|
data-content="
|
|
|
<a class="list-group-item list-group-item-action" href="./export-pdf.html">Export PDF example</a>
|
|
|
<a class="list-group-item list-group-item-action" href="./export-map.html">Map Export</a>
|
|
|
<a class="list-group-item list-group-item-action active" href="./print-to-scale.html">Print to scale example</a>"
|
|
|
tabindex="0"
|
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>3</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=pdf" class="badge badge-info">pdf</a
|
|
|
><a
|
|
|
class="badge badge-info tag-modal-toggle text-white"
|
|
|
data-toggle="modal"
|
|
|
data-target="#tag-example-list"
|
|
|
data-title="pdf"
|
|
|
data-content="
|
|
|
<a class="list-group-item list-group-item-action" href="./export-pdf.html">Export PDF example</a>
|
|
|
<a class="list-group-item list-group-item-action active" href="./print-to-scale.html">Print to scale example</a>"
|
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|
tabindex="0"
|
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>2</a>
|
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|
</span>
|
|
|
<span class="badge-group">
|
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|
<a
|
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|
href="./index.html?q=grid" class="badge badge-info">grid</a
|
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|
><a
|
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|
class="badge badge-info tag-modal-toggle text-white"
|
|
|
data-toggle="modal"
|
|
|
data-target="#tag-example-list"
|
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|
data-title="grid"
|
|
|
data-content="
|
|
|
<a class="list-group-item list-group-item-action" href="./mapbox-vector-tiles-advanced.html">Advanced Mapbox Vector Tiles</a>
|
|
|
<a class="list-group-item list-group-item-action" href="./wmts-ign.html">IGN WMTS</a>
|
|
|
<a class="list-group-item list-group-item-action active" href="./print-to-scale.html">Print to scale example</a>
|
|
|
<a class="list-group-item list-group-item-action" href="./reprojection.html">Raster Reprojection</a>
|
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|
<a class="list-group-item list-group-item-action" href="./vector-tiles-4326.html">Vector tiles in EPSG:4326</a>
|
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|
<a class="list-group-item list-group-item-action" href="./wms-custom-tilegrid-512x256.html">WMS 512x256 Tiles</a>
|
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<a class="list-group-item list-group-item-action" href="./wmts.html">WMTS</a>
|
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<a class="list-group-item list-group-item-action" href="./wmts-dimensions.html">WMTS Tile Transitions</a>"
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tabindex="0"
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>8</a>
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</span>
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|
</p>
|
|
|
<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">
|
|
|
<div class="modal-content">
|
|
|
<div class="modal-header">
|
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|
<h5 class="modal-title" id="tag-example-title"></h5>
|
|
|
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
|
|
|
<span aria-hidden="true">×</span>
|
|
|
</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>
|
|
|
<div class="wrapper">
|
|
|
<div id="map" class="map"></div>
|
|
|
</div>
|
|
|
<form class="form">
|
|
|
<label for="format">Page size </label>
|
|
|
<select id="format">
|
|
|
<option value="a0">A0 (slow)</option>
|
|
|
<option value="a1">A1</option>
|
|
|
<option value="a2">A2</option>
|
|
|
<option value="a3">A3</option>
|
|
|
<option value="a4" selected>A4</option>
|
|
|
<option value="a5">A5 (fast)</option>
|
|
|
</select>
|
|
|
<label for="resolution">Resolution </label>
|
|
|
<select id="resolution">
|
|
|
<option value="72">72 dpi (fast)</option>
|
|
|
<option value="150">150 dpi</option>
|
|
|
<option value="200" selected>200 dpi</option>
|
|
|
<option value="300">300 dpi (slow)</option>
|
|
|
</select>
|
|
|
<label for="scale">Scale </label>
|
|
|
<select id="scale">
|
|
|
<option value="500">1:500000</option>
|
|
|
<option value="250" selected>1:250000</option>
|
|
|
<option value="100">1:100000</option>
|
|
|
<option value="50">1:50000</option>
|
|
|
<option value="25">1:25000</option>
|
|
|
<option value="10">1:10000</option>
|
|
|
</select>
|
|
|
</form>
|
|
|
<button id="export-pdf">Export PDF</button>
|
|
|
|
|
|
</div>
|
|
|
<form method="POST" id="codepen-form" target="_blank" action="https://codesandbox.io/api/v1/sandboxes/define">
|
|
|
<input id="codesandbox-params" type="hidden" name="parameters">
|
|
|
</form>
|
|
|
</div>
|
|
|
|
|
|
<div class="row-fluid">
|
|
|
<div class="span12">
|
|
|
<p id="shortdesc">Example of printing a map to a specified scale.</p>
|
|
|
<div id="docs"><p>Example of printing a map to a specified scale. The print is exported as a PDF using the <a href="https://github.com/MrRio/jsPDF" target="_blank">jsPDF</a> library. Unlike the <a href="export-pdf.html">Export PDF example</a> the on screen map is only used to set the center and rotation. The extent printed depends on the scale and page size. To print the scale bar and attributions the example uses the <a href="https://html2canvas.hertzen.com/" target="_blank">html2canvas</a> library.</p>
|
|
|
</div>
|
|
|
</div>
|
|
|
</div>
|
|
|
|
|
|
<div class="row-fluid">
|
|
|
<h5 class="source-heading">main.js</h5>
|
|
|
<pre><code id="example-js-source" class="language-js">import 'ol/ol.css';
|
|
|
import Map from 'ol/Map';
|
|
|
import TileLayer from 'ol/layer/Tile';
|
|
|
import View from 'ol/View';
|
|
|
import WMTS, {optionsFromCapabilities} from 'ol/source/WMTS';
|
|
|
import WMTSCapabilities from 'ol/format/WMTSCapabilities';
|
|
|
import proj4 from 'proj4';
|
|
|
import {ScaleLine, defaults as defaultControls} from 'ol/control';
|
|
|
import {getPointResolution, get as getProjection} from 'ol/proj';
|
|
|
import {register} from 'ol/proj/proj4';
|
|
|
|
|
|
proj4.defs(
|
|
|
'EPSG:27700',
|
|
|
'+proj=tmerc +lat_0=49 +lon_0=-2 +k=0.9996012717 ' +
|
|
|
'+x_0=400000 +y_0=-100000 +ellps=airy ' +
|
|
|
'+towgs84=446.448,-125.157,542.06,0.15,0.247,0.842,-20.489 ' +
|
|
|
'+units=m +no_defs'
|
|
|
);
|
|
|
|
|
|
register(proj4);
|
|
|
|
|
|
const proj27700 = getProjection('EPSG:27700');
|
|
|
proj27700.setExtent([0, 0, 700000, 1300000]);
|
|
|
|
|
|
const raster = new TileLayer();
|
|
|
|
|
|
const url =
|
|
|
'https://tiles.arcgis.com/tiles/qHLhLQrcvEnxjtPr/arcgis/rest/services/OS_Open_Raster/MapServer/WMTS';
|
|
|
fetch(url)
|
|
|
.then(function (response) {
|
|
|
return response.text();
|
|
|
})
|
|
|
.then(function (text) {
|
|
|
const result = new WMTSCapabilities().read(text);
|
|
|
const options = optionsFromCapabilities(result, {
|
|
|
layer: 'OS_Open_Raster',
|
|
|
});
|
|
|
options.attributions =
|
|
|
'Contains OS data © Crown Copyright and database right ' +
|
|
|
new Date().getFullYear();
|
|
|
options.crossOrigin = '';
|
|
|
options.projection = proj27700;
|
|
|
options.wrapX = false;
|
|
|
raster.setSource(new WMTS(options));
|
|
|
});
|
|
|
|
|
|
const map = new Map({
|
|
|
layers: [raster],
|
|
|
controls: defaultControls({
|
|
|
attributionOptions: {collapsible: false},
|
|
|
}),
|
|
|
target: 'map',
|
|
|
view: new View({
|
|
|
center: [373500, 436500],
|
|
|
projection: proj27700,
|
|
|
zoom: 7,
|
|
|
}),
|
|
|
});
|
|
|
|
|
|
const scaleLine = new ScaleLine({bar: true, text: true, minWidth: 125});
|
|
|
map.addControl(scaleLine);
|
|
|
|
|
|
const dims = {
|
|
|
a0: [1189, 841],
|
|
|
a1: [841, 594],
|
|
|
a2: [594, 420],
|
|
|
a3: [420, 297],
|
|
|
a4: [297, 210],
|
|
|
a5: [210, 148],
|
|
|
};
|
|
|
|
|
|
// export options for html2canvase.
|
|
|
// See: https://html2canvas.hertzen.com/configuration
|
|
|
const exportOptions = {
|
|
|
useCORS: true,
|
|
|
ignoreElements: function (element) {
|
|
|
const className = element.className || '';
|
|
|
return !(
|
|
|
className.indexOf('ol-control') === -1 ||
|
|
|
className.indexOf('ol-scale') > -1 ||
|
|
|
(className.indexOf('ol-attribution') > -1 &&
|
|
|
className.indexOf('ol-uncollapsible'))
|
|
|
);
|
|
|
},
|
|
|
};
|
|
|
|
|
|
const exportButton = document.getElementById('export-pdf');
|
|
|
|
|
|
exportButton.addEventListener(
|
|
|
'click',
|
|
|
function () {
|
|
|
exportButton.disabled = true;
|
|
|
document.body.style.cursor = 'progress';
|
|
|
|
|
|
const format = document.getElementById('format').value;
|
|
|
const resolution = document.getElementById('resolution').value;
|
|
|
const scale = document.getElementById('scale').value;
|
|
|
const dim = dims[format];
|
|
|
const width = Math.round((dim[0] * resolution) / 25.4);
|
|
|
const height = Math.round((dim[1] * resolution) / 25.4);
|
|
|
const viewResolution = map.getView().getResolution();
|
|
|
const scaleResolution =
|
|
|
scale /
|
|
|
getPointResolution(
|
|
|
map.getView().getProjection(),
|
|
|
resolution / 25.4,
|
|
|
map.getView().getCenter()
|
|
|
);
|
|
|
|
|
|
map.once('rendercomplete', function () {
|
|
|
exportOptions.width = width;
|
|
|
exportOptions.height = height;
|
|
|
html2canvas(map.getViewport(), exportOptions).then(function (canvas) {
|
|
|
const pdf = new jspdf.jsPDF('landscape', undefined, format);
|
|
|
pdf.addImage(
|
|
|
canvas.toDataURL('image/jpeg'),
|
|
|
'JPEG',
|
|
|
0,
|
|
|
0,
|
|
|
dim[0],
|
|
|
dim[1]
|
|
|
);
|
|
|
pdf.save('map.pdf');
|
|
|
// Reset original map size
|
|
|
scaleLine.setDpi();
|
|
|
map.getTargetElement().style.width = '';
|
|
|
map.getTargetElement().style.height = '';
|
|
|
map.updateSize();
|
|
|
map.getView().setResolution(viewResolution);
|
|
|
exportButton.disabled = false;
|
|
|
document.body.style.cursor = 'auto';
|
|
|
});
|
|
|
});
|
|
|
|
|
|
// Set print size
|
|
|
scaleLine.setDpi(resolution);
|
|
|
map.getTargetElement().style.width = width + 'px';
|
|
|
map.getTargetElement().style.height = height + 'px';
|
|
|
map.updateSize();
|
|
|
map.getView().setResolution(scaleResolution);
|
|
|
},
|
|
|
false
|
|
|
);
|
|
|
</code></pre>
|
|
|
</div>
|
|
|
|
|
|
<div class="row-fluid">
|
|
|
<h5 class="source-heading">index.html</h5>
|
|
|
<pre><code id="example-html-source" class="language-markup"><!DOCTYPE html>
|
|
|
<html lang="en">
|
|
|
<head>
|
|
|
<meta charset="UTF-8">
|
|
|
<title>Print to scale example</title>
|
|
|
<!-- Pointer events polyfill for old browsers, see https://caniuse.com/#feat=pointer -->
|
|
|
<script src="https://unpkg.com/elm-pep"></script>
|
|
|
<!-- The lines below are only needed for old environments like Internet Explorer and Android 4.x -->
|
|
|
<script src="https://cdn.polyfill.io/v3/polyfill.min.js?features=fetch,requestAnimationFrame,Element.prototype.classList,TextDecoder"></script>
|
|
|
<script src="https://cdnjs.cloudflare.com/ajax/libs/core-js/3.18.3/minified.js"></script>
|
|
|
<script src="https://html2canvas.hertzen.com/dist/html2canvas.min.js"></script>
|
|
|
<script src="https://cdnjs.cloudflare.com/ajax/libs/jspdf/2.3.1/jspdf.umd.min.js"></script>
|
|
|
<style>
|
|
|
.map {
|
|
|
width: 100%;
|
|
|
height:400px;
|
|
|
}
|
|
|
.wrapper {
|
|
|
max-width: 566px;
|
|
|
width: 100%;
|
|
|
height: 400px;
|
|
|
overflow: hidden;
|
|
|
}
|
|
|
</style>
|
|
|
</head>
|
|
|
<body>
|
|
|
<div class="wrapper">
|
|
|
<div id="map" class="map"></div>
|
|
|
</div>
|
|
|
<form class="form">
|
|
|
<label for="format">Page size </label>
|
|
|
<select id="format">
|
|
|
<option value="a0">A0 (slow)</option>
|
|
|
<option value="a1">A1</option>
|
|
|
<option value="a2">A2</option>
|
|
|
<option value="a3">A3</option>
|
|
|
<option value="a4" selected>A4</option>
|
|
|
<option value="a5">A5 (fast)</option>
|
|
|
</select>
|
|
|
<label for="resolution">Resolution </label>
|
|
|
<select id="resolution">
|
|
|
<option value="72">72 dpi (fast)</option>
|
|
|
<option value="150">150 dpi</option>
|
|
|
<option value="200" selected>200 dpi</option>
|
|
|
<option value="300">300 dpi (slow)</option>
|
|
|
</select>
|
|
|
<label for="scale">Scale </label>
|
|
|
<select id="scale">
|
|
|
<option value="500">1:500000</option>
|
|
|
<option value="250" selected>1:250000</option>
|
|
|
<option value="100">1:100000</option>
|
|
|
<option value="50">1:50000</option>
|
|
|
<option value="25">1:25000</option>
|
|
|
<option value="10">1:10000</option>
|
|
|
</select>
|
|
|
</form>
|
|
|
<button id="export-pdf">Export PDF</button>
|
|
|
<script src="main.js"></script>
|
|
|
</body>
|
|
|
</html></code></pre>
|
|
|
</div>
|
|
|
|
|
|
<div class="row-fluid">
|
|
|
<h5 class="source-heading">package.json</h5>
|
|
|
<pre><code id="example-pkg-source" class="language-json">{
|
|
|
"name": "print-to-scale",
|
|
|
"dependencies": {
|
|
|
"ol": "6.12.0"
|
|
|
},
|
|
|
"devDependencies": {
|
|
|
"parcel": "^2.0.0"
|
|
|
},
|
|
|
"scripts": {
|
|
|
"start": "parcel index.html",
|
|
|
"build": "parcel build --public-url . index.html"
|
|
|
}
|
|
|
}</code></pre>
|
|
|
</div>
|
|
|
</div>
|
|
|
|
|
|
<script src="https://code.jquery.com/jquery-3.5.1.min.js"></script>
|
|
|
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.5.0/js/bootstrap.bundle.min.js"></script>
|
|
|
<script src="./resources/prism/prism-1.20.0.min.js"></script>
|
|
|
<script src="./resources/common.js"></script>
|
|
|
<script src="common.js"></script>
|
|
|
<script src="print-to-scale.js"></script>
|
|
|
<script>
|
|
|
$('#tag-example-list').on('show.bs.modal', function (event) {
|
|
|
const button = $(event.relatedTarget); // Button that triggered the modal
|
|
|
const title = button.data('title');
|
|
|
const content = button.data('content');
|
|
|
const modal = $(this)
|
|
|
modal.find('.modal-title').text(title);
|
|
|
modal.find('.modal-body').html(content);
|
|
|
});
|
|
|
|
|
|
var packageUrl = 'https://raw.githubusercontent.com/openlayers/openlayers.github.io/build/package.json';
|
|
|
fetch(packageUrl).then(function(response) {
|
|
|
return response.json();
|
|
|
}).then(function(json) {
|
|
|
var latestVersion = json.version;
|
|
|
document.getElementById('latest-version').innerHTML = latestVersion;
|
|
|
var url = window.location.href;
|
|
|
var branchSearch = url.match(/\/([^\/]*)\/examples\//);
|
|
|
var cookieText = 'dismissed=-' + latestVersion + '-';
|
|
|
var dismissed = document.cookie.indexOf(cookieText) != -1;
|
|
|
if (branchSearch && !dismissed && /^v[0-9\.]*$/.test(branchSearch[1]) && '6.12.0' != latestVersion) {
|
|
|
var link = url.replace(branchSearch[0], '/latest/examples/');
|
|
|
fetch(link, {method: 'head'}).then(function(response) {
|
|
|
var a = document.getElementById('latest-link');
|
|
|
a.href = response.status == 200 ? link : '../../latest/examples/';
|
|
|
});
|
|
|
var latestCheck = document.getElementById('latest-check');
|
|
|
latestCheck.style.display = '';
|
|
|
document.getElementById('latest-dismiss').onclick = function() {
|
|
|
latestCheck.style.display = 'none';
|
|
|
document.cookie = cookieText;
|
|
|
}
|
|
|
}
|
|
|
});
|
|
|
</script>
|
|
|
</body>
|
|
|
</html>
|
