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<title>Raster Reprojection</title>
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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">Raster Reprojection</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=reprojection" class="badge badge-info">reprojection</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="reprojection"
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data-content="
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<a class="list-group-item list-group-item-action" href="./reprojection-image.html">Image Reprojection</a>
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<a class="list-group-item list-group-item-action" href="./interpolation.html">Interpolation</a>
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<a class="list-group-item list-group-item-action" href="./reprojection-wgs84.html">OpenStreetMap Reprojection</a>
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<a class="list-group-item list-group-item-action" href="./scaleline-indiana-east.html">OpenStreetMap Reprojection with ScaleLine Control</a>
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<a class="list-group-item list-group-item-action active" href="./reprojection.html">Raster Reprojection</a>
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<a class="list-group-item list-group-item-action" href="./reprojection-by-code.html">Reprojection with EPSG.io Search</a>"
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tabindex="0"
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>6</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=projection" class="badge badge-info">projection</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="projection"
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data-content="
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<a class="list-group-item list-group-item-action" href="./wms-custom-proj.html">Custom Tiled WMS</a>
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<a class="list-group-item list-group-item-action" href="./reprojection-image.html">Image Reprojection</a>
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<a class="list-group-item list-group-item-action" href="./reprojection-wgs84.html">OpenStreetMap Reprojection</a>
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<a class="list-group-item list-group-item-action" href="./scaleline-indiana-east.html">OpenStreetMap Reprojection with ScaleLine Control</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 active" href="./reprojection.html">Raster Reprojection</a>
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<a class="list-group-item list-group-item-action" href="./reprojection-by-code.html">Reprojection with EPSG.io Search</a>
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<a class="list-group-item list-group-item-action" href="./wms-image-custom-proj.html">Single Image WMS with Proj4js</a>
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<a class="list-group-item list-group-item-action" href="./sphere-mollweide.html">Sphere Mollweide</a>
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<a class="list-group-item list-group-item-action" href="./wms-no-proj.html">WMS without Projection</a>
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<a class="list-group-item list-group-item-action" href="./zoomify.html">Zoomify</a>"
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tabindex="0"
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>11</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=proj4js" class="badge badge-info">proj4js</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="proj4js"
|
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data-content="
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<a class="list-group-item list-group-item-action" href="./reprojection-image.html">Image Reprojection</a>
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<a class="list-group-item list-group-item-action active" href="./reprojection.html">Raster Reprojection</a>
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|
<a class="list-group-item list-group-item-action" href="./reprojection-by-code.html">Reprojection with EPSG.io Search</a>
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<a class="list-group-item list-group-item-action" href="./wms-image-custom-proj.html">Single Image WMS with Proj4js</a>
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<a class="list-group-item list-group-item-action" href="./sphere-mollweide.html">Sphere Mollweide</a>"
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tabindex="0"
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>5</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=osm" class="badge badge-info">osm</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="osm"
|
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data-content="
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<a class="list-group-item list-group-item-action" href="./full-screen-source.html">Full Screen Control with extended source element</a>
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<a class="list-group-item list-group-item-action" href="./osm-vector-tiles.html">OSM Vector Tiles</a>
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<a class="list-group-item list-group-item-action active" href="./reprojection.html">Raster Reprojection</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="./webgl-tiles.html">WebGL Tiles</a>"
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tabindex="0"
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>5</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=wms" class="badge badge-info">wms</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="wms"
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data-content="
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<a class="list-group-item list-group-item-action" href="./wms-custom-proj.html">Custom Tiled WMS</a>
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<a class="list-group-item list-group-item-action active" href="./reprojection.html">Raster Reprojection</a>
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<a class="list-group-item list-group-item-action" href="./wms-image.html">Single Image WMS</a>
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<a class="list-group-item list-group-item-action" href="./wms-image-custom-proj.html">Single Image WMS with Proj4js</a>
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<a class="list-group-item list-group-item-action" href="./wms-tiled.html">Tiled WMS</a>
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<a class="list-group-item list-group-item-action" href="./wms-tiled-wrap-180.html">Tiled WMS Wrapping</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="./wms-capabilities.html">WMS Capabilities Parsing</a>
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<a class="list-group-item list-group-item-action" href="./wms-getlegendgraphic.html">WMS GetLegendGraphic</a>
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<a class="list-group-item list-group-item-action" href="./wms-time.html">WMS Time</a>
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<a class="list-group-item list-group-item-action" href="./wms-no-proj.html">WMS without Projection</a>"
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tabindex="0"
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>11</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=wmts" class="badge badge-info">wmts</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"
|
|
|
data-target="#tag-example-list"
|
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data-title="wmts"
|
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data-content="
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<a class="list-group-item list-group-item-action" href="./wmts-hidpi.html">High DPI WMTS</a>
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<a class="list-group-item list-group-item-action" href="./wmts-ign.html">IGN WMTS</a>
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<a class="list-group-item list-group-item-action active" href="./reprojection.html">Raster Reprojection</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-capabilities.html">WMTS Capabilities Parsing</a>
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<a class="list-group-item list-group-item-action" href="./wmts-layer-from-capabilities.html">WMTS Layer from Capabilities</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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>7</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=hidpi" class="badge badge-info">hidpi</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"
|
|
|
data-target="#tag-example-list"
|
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|
data-title="hidpi"
|
|
|
data-content="
|
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<a class="list-group-item list-group-item-action" href="./wmts-hidpi.html">High DPI WMTS</a>
|
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|
<a class="list-group-item list-group-item-action active" href="./reprojection.html">Raster Reprojection</a>
|
|
|
<a class="list-group-item list-group-item-action" href="./xyz-retina.html">XYZ Retina Tiles</a>"
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tabindex="0"
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>3</a>
|
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|
</span>
|
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|
<span class="badge-group">
|
|
|
<a
|
|
|
href="./index.html?q=grid" class="badge badge-info">grid</a
|
|
|
><a
|
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|
class="badge badge-info tag-modal-toggle text-white"
|
|
|
data-toggle="modal"
|
|
|
data-target="#tag-example-list"
|
|
|
data-title="grid"
|
|
|
data-content="
|
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<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>
|
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|
<a class="list-group-item list-group-item-action" href="./print-to-scale.html">Print to scale example</a>
|
|
|
<a class="list-group-item list-group-item-action active" 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>
|
|
|
<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>
|
|
|
</p>
|
|
|
<div class="modal modal-tag-example" id="tag-example-list" tabindex="-1" role="dialog" aria-labelledby="tag-example-title" aria-hidden="true">
|
|
|
<div class="modal-dialog modal-dialog-scrollable" role="document">
|
|
|
<div class="modal-content">
|
|
|
<div class="modal-header">
|
|
|
<h5 class="modal-title" id="tag-example-title"></h5>
|
|
|
<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>
|
|
|
<div class="modal-body">
|
|
|
<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>
|
|
|
<form class="form-inline">
|
|
|
<div class="col-md-3">
|
|
|
<label for="base-layer">Base map:</label>
|
|
|
<select id="base-layer">
|
|
|
<option value="osm">OSM (EPSG:3857)</option>
|
|
|
<option value="wms4326">WMS (EPSG:4326)</option>
|
|
|
</select>
|
|
|
</div>
|
|
|
<div class="col-md-4">
|
|
|
<label for="overlay-layer">Overlay map:</label>
|
|
|
<select id="overlay-layer">
|
|
|
<option value="bng">British National Grid (EPSG:27700)</option>
|
|
|
<option value="wms21781">Swisstopo WMS (EPSG:21781)</option>
|
|
|
<option value="wmts3413">NASA Arctic WMTS (EPSG:3413)</option>
|
|
|
<option value="states">United States (EPSG:3857)</option>
|
|
|
</select>
|
|
|
</div>
|
|
|
<div class="col-md-5">
|
|
|
<label for="view-projection">View projection:</label>
|
|
|
<select id="view-projection">
|
|
|
<option value="EPSG:3857">Spherical Mercator (EPSG:3857)</option>
|
|
|
<option value="EPSG:4326">WGS 84 (EPSG:4326)</option>
|
|
|
<option value="ESRI:54009">Mollweide (ESRI:54009)</option>
|
|
|
<option value="EPSG:27700">British National Grid (EPSG:27700)</option>
|
|
|
<option value="EPSG:23032">ED50 / UTM zone 32N (EPSG:23032)</option>
|
|
|
<option value="EPSG:2163">US National Atlas Equal Area (EPSG:2163)</option>
|
|
|
<option value="EPSG:3413">NSIDC Polar Stereographic North (EPSG:3413)</option>
|
|
|
<option value="EPSG:5479">RSRGD2000 / MSLC2000 (EPSG:5479)</option>
|
|
|
</select>
|
|
|
</div>
|
|
|
</form>
|
|
|
<form class="form-inline">
|
|
|
<div class="col-md-auto">
|
|
|
<label>
|
|
|
Render reprojection edges:
|
|
|
<input type="checkbox" id="render-edges" />
|
|
|
</label>
|
|
|
</div>
|
|
|
</form>
|
|
|
|
|
|
</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">Demonstrates client-side raster reprojection between various projections.</p>
|
|
|
<div id="docs"><p>This example shows client-side raster reprojection between various projections.</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 TileGrid from 'ol/tilegrid/TileGrid';
|
|
|
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 {OSM, TileImage, TileWMS} from 'ol/source';
|
|
|
import {getCenter, getWidth} from 'ol/extent';
|
|
|
import {get as getProjection, transformExtent} 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'
|
|
|
);
|
|
|
proj4.defs(
|
|
|
'EPSG:23032',
|
|
|
'+proj=utm +zone=32 +ellps=intl ' +
|
|
|
'+towgs84=-87,-98,-121,0,0,0,0 +units=m +no_defs'
|
|
|
);
|
|
|
proj4.defs(
|
|
|
'EPSG:5479',
|
|
|
'+proj=lcc +lat_1=-76.66666666666667 +lat_2=' +
|
|
|
'-79.33333333333333 +lat_0=-78 +lon_0=163 +x_0=7000000 +y_0=5000000 ' +
|
|
|
'+ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs'
|
|
|
);
|
|
|
proj4.defs(
|
|
|
'EPSG:21781',
|
|
|
'+proj=somerc +lat_0=46.95240555555556 ' +
|
|
|
'+lon_0=7.439583333333333 +k_0=1 +x_0=600000 +y_0=200000 +ellps=bessel ' +
|
|
|
'+towgs84=674.4,15.1,405.3,0,0,0,0 +units=m +no_defs'
|
|
|
);
|
|
|
proj4.defs(
|
|
|
'EPSG:3413',
|
|
|
'+proj=stere +lat_0=90 +lat_ts=70 +lon_0=-45 +k=1 ' +
|
|
|
'+x_0=0 +y_0=0 +datum=WGS84 +units=m +no_defs'
|
|
|
);
|
|
|
proj4.defs(
|
|
|
'EPSG:2163',
|
|
|
'+proj=laea +lat_0=45 +lon_0=-100 +x_0=0 +y_0=0 ' +
|
|
|
'+a=6370997 +b=6370997 +units=m +no_defs'
|
|
|
);
|
|
|
proj4.defs(
|
|
|
'ESRI:54009',
|
|
|
'+proj=moll +lon_0=0 +x_0=0 +y_0=0 +datum=WGS84 ' + '+units=m +no_defs'
|
|
|
);
|
|
|
register(proj4);
|
|
|
|
|
|
const proj27700 = getProjection('EPSG:27700');
|
|
|
proj27700.setExtent([-650000, -150000, 1350000, 1450000]);
|
|
|
|
|
|
const proj23032 = getProjection('EPSG:23032');
|
|
|
proj23032.setExtent([-1206118.71, 4021309.92, 1295389.0, 8051813.28]);
|
|
|
|
|
|
const proj5479 = getProjection('EPSG:5479');
|
|
|
proj5479.setExtent([6825737.53, 4189159.8, 9633741.96, 5782472.71]);
|
|
|
|
|
|
const proj21781 = getProjection('EPSG:21781');
|
|
|
proj21781.setExtent([485071.54, 75346.36, 828515.78, 299941.84]);
|
|
|
|
|
|
const proj3413 = getProjection('EPSG:3413');
|
|
|
proj3413.setExtent([-4194304, -4194304, 4194304, 4194304]);
|
|
|
|
|
|
const proj2163 = getProjection('EPSG:2163');
|
|
|
proj2163.setExtent([-8040784.5135, -2577524.921, 3668901.4484, 4785105.1096]);
|
|
|
|
|
|
const proj54009 = getProjection('ESRI:54009');
|
|
|
proj54009.setExtent([-18e6, -9e6, 18e6, 9e6]);
|
|
|
|
|
|
const layers = {};
|
|
|
|
|
|
layers['osm'] = new TileLayer({
|
|
|
source: new OSM(),
|
|
|
});
|
|
|
|
|
|
layers['wms4326'] = new TileLayer({
|
|
|
source: new TileWMS({
|
|
|
url: 'https://ahocevar.com/geoserver/wms',
|
|
|
crossOrigin: '',
|
|
|
params: {
|
|
|
'LAYERS': 'ne:NE1_HR_LC_SR_W_DR',
|
|
|
'TILED': true,
|
|
|
},
|
|
|
projection: 'EPSG:4326',
|
|
|
}),
|
|
|
});
|
|
|
|
|
|
layers['wms21781'] = new TileLayer({
|
|
|
source: new TileWMS({
|
|
|
attributions:
|
|
|
'© <a href="https://shop.swisstopo.admin.ch/en/products/maps/national/lk1000"' +
|
|
|
'target="_blank">Pixelmap 1:1000000 / geo.admin.ch</a>',
|
|
|
crossOrigin: 'anonymous',
|
|
|
params: {
|
|
|
'LAYERS': 'ch.swisstopo.pixelkarte-farbe-pk1000.noscale',
|
|
|
'FORMAT': 'image/jpeg',
|
|
|
},
|
|
|
url: 'https://wms.geo.admin.ch/',
|
|
|
projection: 'EPSG:21781',
|
|
|
}),
|
|
|
});
|
|
|
|
|
|
const parser = new WMTSCapabilities();
|
|
|
|
|
|
layers['wmts3413'] = new TileLayer();
|
|
|
const urlA =
|
|
|
'https://map1.vis.earthdata.nasa.gov/wmts-arctic/' +
|
|
|
'wmts.cgi?SERVICE=WMTS&request=GetCapabilities';
|
|
|
fetch(urlA)
|
|
|
.then(function (response) {
|
|
|
return response.text();
|
|
|
})
|
|
|
.then(function (text) {
|
|
|
const result = parser.read(text);
|
|
|
const options = optionsFromCapabilities(result, {
|
|
|
layer: 'OSM_Land_Mask',
|
|
|
matrixSet: 'EPSG3413_250m',
|
|
|
});
|
|
|
options.crossOrigin = '';
|
|
|
options.projection = 'EPSG:3413';
|
|
|
options.wrapX = false;
|
|
|
layers['wmts3413'].setSource(new WMTS(options));
|
|
|
});
|
|
|
|
|
|
layers['bng'] = new TileLayer();
|
|
|
const urlB =
|
|
|
'https://tiles.arcgis.com/tiles/qHLhLQrcvEnxjtPr/arcgis/rest/services/OS_Open_Raster/MapServer/WMTS';
|
|
|
fetch(urlB)
|
|
|
.then(function (response) {
|
|
|
return response.text();
|
|
|
})
|
|
|
.then(function (text) {
|
|
|
const result = parser.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 = 'EPSG:27700';
|
|
|
options.wrapX = false;
|
|
|
layers['bng'].setSource(new WMTS(options));
|
|
|
});
|
|
|
|
|
|
const startResolution = getWidth(getProjection('EPSG:3857').getExtent()) / 256;
|
|
|
const resolutions = new Array(22);
|
|
|
for (let i = 0, ii = resolutions.length; i < ii; ++i) {
|
|
|
resolutions[i] = startResolution / Math.pow(2, i);
|
|
|
}
|
|
|
|
|
|
layers['states'] = new TileLayer({
|
|
|
source: new TileWMS({
|
|
|
url: 'https://ahocevar.com/geoserver/wms',
|
|
|
crossOrigin: '',
|
|
|
params: {'LAYERS': 'topp:states'},
|
|
|
serverType: 'geoserver',
|
|
|
tileGrid: new TileGrid({
|
|
|
extent: [-13884991, 2870341, -7455066, 6338219],
|
|
|
resolutions: resolutions,
|
|
|
tileSize: [512, 256],
|
|
|
}),
|
|
|
projection: 'EPSG:3857',
|
|
|
}),
|
|
|
});
|
|
|
|
|
|
const map = new Map({
|
|
|
layers: [layers['osm'], layers['bng']],
|
|
|
target: 'map',
|
|
|
view: new View({
|
|
|
projection: 'EPSG:3857',
|
|
|
center: [0, 0],
|
|
|
zoom: 2,
|
|
|
}),
|
|
|
});
|
|
|
|
|
|
const baseLayerSelect = document.getElementById('base-layer');
|
|
|
const overlayLayerSelect = document.getElementById('overlay-layer');
|
|
|
const viewProjSelect = document.getElementById('view-projection');
|
|
|
const renderEdgesCheckbox = document.getElementById('render-edges');
|
|
|
let renderEdges = false;
|
|
|
|
|
|
function updateViewProjection() {
|
|
|
const newProj = getProjection(viewProjSelect.value);
|
|
|
const newProjExtent = newProj.getExtent();
|
|
|
const newView = new View({
|
|
|
projection: newProj,
|
|
|
center: getCenter(newProjExtent || [0, 0, 0, 0]),
|
|
|
zoom: 0,
|
|
|
extent: newProjExtent || undefined,
|
|
|
});
|
|
|
map.setView(newView);
|
|
|
|
|
|
// Example how to prevent double occurrence of map by limiting layer extent
|
|
|
if (newProj.isGlobal()) {
|
|
|
layers['bng'].setExtent(
|
|
|
transformExtent(proj27700.getExtent(), proj27700, newProj, 2)
|
|
|
);
|
|
|
} else {
|
|
|
layers['bng'].setExtent(undefined);
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* Handle change event.
|
|
|
*/
|
|
|
viewProjSelect.onchange = function () {
|
|
|
updateViewProjection();
|
|
|
};
|
|
|
|
|
|
updateViewProjection();
|
|
|
|
|
|
const updateRenderEdgesOnLayer = function (layer) {
|
|
|
if (layer instanceof TileLayer) {
|
|
|
const source = layer.getSource();
|
|
|
if (source instanceof TileImage) {
|
|
|
source.setRenderReprojectionEdges(renderEdges);
|
|
|
}
|
|
|
}
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Handle change event.
|
|
|
*/
|
|
|
baseLayerSelect.onchange = function () {
|
|
|
const layer = layers[baseLayerSelect.value];
|
|
|
if (layer) {
|
|
|
layer.setOpacity(1);
|
|
|
updateRenderEdgesOnLayer(layer);
|
|
|
map.getLayers().setAt(0, layer);
|
|
|
}
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Handle change event.
|
|
|
*/
|
|
|
overlayLayerSelect.onchange = function () {
|
|
|
const layer = layers[overlayLayerSelect.value];
|
|
|
if (layer) {
|
|
|
layer.setOpacity(0.7);
|
|
|
updateRenderEdgesOnLayer(layer);
|
|
|
map.getLayers().setAt(1, layer);
|
|
|
}
|
|
|
};
|
|
|
|
|
|
/**
|
|
|
* Handle change event.
|
|
|
*/
|
|
|
renderEdgesCheckbox.onchange = function () {
|
|
|
renderEdges = renderEdgesCheckbox.checked;
|
|
|
map.getLayers().forEach(function (layer) {
|
|
|
updateRenderEdgesOnLayer(layer);
|
|
|
});
|
|
|
};
|
|
|
</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>Raster Reprojection</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>
|
|
|
<style>
|
|
|
.map {
|
|
|
width: 100%;
|
|
|
height:400px;
|
|
|
}
|
|
|
.form-inline label {
|
|
|
justify-content: left;
|
|
|
}
|
|
|
</style>
|
|
|
</head>
|
|
|
<body>
|
|
|
<div id="map" class="map"></div>
|
|
|
<form class="form-inline">
|
|
|
<div class="col-md-3">
|
|
|
<label for="base-layer">Base map:</label>
|
|
|
<select id="base-layer">
|
|
|
<option value="osm">OSM (EPSG:3857)</option>
|
|
|
<option value="wms4326">WMS (EPSG:4326)</option>
|
|
|
</select>
|
|
|
</div>
|
|
|
<div class="col-md-4">
|
|
|
<label for="overlay-layer">Overlay map:</label>
|
|
|
<select id="overlay-layer">
|
|
|
<option value="bng">British National Grid (EPSG:27700)</option>
|
|
|
<option value="wms21781">Swisstopo WMS (EPSG:21781)</option>
|
|
|
<option value="wmts3413">NASA Arctic WMTS (EPSG:3413)</option>
|
|
|
<option value="states">United States (EPSG:3857)</option>
|
|
|
</select>
|
|
|
</div>
|
|
|
<div class="col-md-5">
|
|
|
<label for="view-projection">View projection:</label>
|
|
|
<select id="view-projection">
|
|
|
<option value="EPSG:3857">Spherical Mercator (EPSG:3857)</option>
|
|
|
<option value="EPSG:4326">WGS 84 (EPSG:4326)</option>
|
|
|
<option value="ESRI:54009">Mollweide (ESRI:54009)</option>
|
|
|
<option value="EPSG:27700">British National Grid (EPSG:27700)</option>
|
|
|
<option value="EPSG:23032">ED50 / UTM zone 32N (EPSG:23032)</option>
|
|
|
<option value="EPSG:2163">US National Atlas Equal Area (EPSG:2163)</option>
|
|
|
<option value="EPSG:3413">NSIDC Polar Stereographic North (EPSG:3413)</option>
|
|
|
<option value="EPSG:5479">RSRGD2000 / MSLC2000 (EPSG:5479)</option>
|
|
|
</select>
|
|
|
</div>
|
|
|
</form>
|
|
|
<form class="form-inline">
|
|
|
<div class="col-md-auto">
|
|
|
<label>
|
|
|
Render reprojection edges:&nbsp;
|
|
|
<input type="checkbox" id="render-edges" />
|
|
|
</label>
|
|
|
</div>
|
|
|
</form>
|
|
|
<script src="main.js"></script>
|
|
|
</body>
|
|
|
</html></code></pre>
|
|
|
</div>
|
|
|
|
|
|
<div class="row-fluid">
|
|
|
<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": "reprojection",
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"dependencies": {
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"ol": "6.12.0",
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|
"proj4": "^2.7.5"
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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>
|
|
|
|
|
|
<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="reprojection.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');
|
|
|
const content = button.data('content');
|
|
|
const modal = $(this)
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|
|
modal.find('.modal-title').text(title);
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|
|
modal.find('.modal-body').html(content);
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|
|
});
|
|
|
|
|
|
var packageUrl = 'https://raw.githubusercontent.com/openlayers/openlayers.github.io/build/package.json';
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|
|
fetch(packageUrl).then(function(response) {
|
|
|
return response.json();
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|
|
}).then(function(json) {
|
|
|
var latestVersion = json.version;
|
|
|
document.getElementById('latest-version').innerHTML = latestVersion;
|
|
|
var url = window.location.href;
|
|
|
var branchSearch = url.match(/\/([^\/]*)\/examples\//);
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|
|
var cookieText = 'dismissed=-' + latestVersion + '-';
|
|
|
var dismissed = document.cookie.indexOf(cookieText) != -1;
|
|
|
if (branchSearch && !dismissed && /^v[0-9\.]*$/.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>
|
