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restrict overlay rendering to covered areas (reduce source load) (#137)

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wiedehopf 2021-07-15 22:46:30 +02:00 committed by GitHub
parent 6e5f2595e0
commit 9e671a14e4
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1 changed files with 9 additions and 1 deletions
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10
public_html_merged/layers.js
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@ -149,12 +149,16 @@ function createBaseLayers() {
} }
} }
var nexrad_bottomLeft = ol.proj.fromLonLat([-171.0,9.0]);
var nexrad_topRight = ol.proj.fromLonLat([-51.0,69.0]);
var nexrad_extent = [nexrad_bottomLeft[0], nexrad_bottomLeft[1], nexrad_topRight[0], nexrad_topRight[1]];
var nexrad = new ol.layer.Tile({ var nexrad = new ol.layer.Tile({
name: 'nexrad', name: 'nexrad',
title: 'NEXRAD', title: 'NEXRAD',
type: 'overlay', type: 'overlay',
opacity: 0.5, opacity: 0.5,
visible: false visible: false,
extent: nexrad_extent,
}); });
us.push(nexrad); us.push(nexrad);
@ -210,6 +214,9 @@ function createBaseLayers() {
}); });
}; };
var dwd_bottomLeft = ol.proj.fromLonLat([1.9,46.2]);
var dwd_topRight = ol.proj.fromLonLat([16.0,55.0]);
var dwd_extent = [dwd_bottomLeft[0], dwd_bottomLeft[1], dwd_topRight[0], dwd_topRight[1]];
var dwd = new ol.layer.Tile({ var dwd = new ol.layer.Tile({
source: new ol.source.TileWMS({ source: new ol.source.TileWMS({
url: 'https://maps.dwd.de/geoserver/wms', url: 'https://maps.dwd.de/geoserver/wms',
@ -224,6 +231,7 @@ function createBaseLayers() {
visible: false, visible: false,
zIndex: 99, zIndex: 99,
maxZoom: 14, maxZoom: 14,
exent: dwd_extent,
}); });
var refreshDwd = function () { var refreshDwd = function () {