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Only request tiles within the layer extent

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Layer renderers are now responsible for requesting data within a limited extent.
This commit is contained in:
Tim Schaub
2014-07-06 23:30:59 -06:00
parent 234cff4de5
commit 2b0284a342
9 changed files with 38 additions and 11 deletions
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4
examples/wms-custom-proj.js
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@@ -44,6 +44,7 @@ ol.proj.addCoordinateTransforms('EPSG:4326', projection,
var extent = [420000, 30000, 900000, 350000];
var layers = [
new ol.layer.Tile({
extent: extent,
source: new ol.source.TileWMS({
url: 'http://wms.geo.admin.ch/',
crossOrigin: 'anonymous',
@@ -57,11 +58,11 @@ var layers = [
'LAYERS': 'ch.swisstopo.pixelkarte-farbe-pk1000.noscale',
'FORMAT': 'image/jpeg'
},
extent: extent,
serverType: 'mapserver'
})
}),
new ol.layer.Tile({
extent: extent,
source: new ol.source.TileWMS({
url: 'http://wms.geo.admin.ch/',
crossOrigin: 'anonymous',
@@ -72,7 +73,6 @@ var layers = [
'National parks / geo.admin.ch</a>'
})],
params: {'LAYERS': 'ch.bafu.schutzgebiete-paerke_nationaler_bedeutung'},
extent: extent,
serverType: 'mapserver'
})
})

8
examples/wms-image-custom-proj.js
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@@ -24,6 +24,7 @@ projection.setExtent([485869.5728, 76443.1884, 837076.5648, 299941.7864]);
var extent = [420000, 30000, 900000, 350000];
var layers = [
new ol.layer.Image({
extent: extent,
source: new ol.source.ImageWMS({
url: 'http://wms.geo.admin.ch/',
crossOrigin: 'anonymous',
@@ -37,11 +38,11 @@ var layers = [
'LAYERS': 'ch.swisstopo.pixelkarte-farbe-pk1000.noscale',
'FORMAT': 'image/jpeg'
},
serverType: /** @type {ol.source.wms.ServerType} */ ('mapserver'),
extent: extent
serverType: /** @type {ol.source.wms.ServerType} */ ('mapserver')
})
}),
new ol.layer.Image({
extent: extent,
source: new ol.source.ImageWMS({
url: 'http://wms.geo.admin.ch/',
crossOrigin: 'anonymous',
@@ -52,8 +53,7 @@ var layers = [
'National parks / geo.admin.ch</a>'
})],
params: {'LAYERS': 'ch.bafu.schutzgebiete-paerke_nationaler_bedeutung'},
serverType: /** @type {ol.source.wms.ServerType} */ ('mapserver'),
extent: extent
serverType: /** @type {ol.source.wms.ServerType} */ ('mapserver')
})
})
];

2
examples/wms-tiled.js
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@@ -10,10 +10,10 @@ var layers = [
source: new ol.source.MapQuest({layer: 'sat'})
}),
new ol.layer.Tile({
extent: [-13884991, 2870341, -7455066, 6338219],
source: new ol.source.TileWMS(/** @type {olx.source.TileWMSOptions} */ ({
url: 'http://demo.opengeo.org/geoserver/wms',
params: {'LAYERS': 'topp:states', 'TILED': true},
extent: [-13884991, 2870341, -7455066, 6338219],
serverType: 'geoserver'
}))
})

5
examples/wmts-hidpi.html
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@@ -9,6 +9,11 @@
<link rel="stylesheet" href="../resources/layout.css" type="text/css">
<link rel="stylesheet" href="../resources/bootstrap/css/bootstrap-responsive.min.css" type="text/css">
<title>WMTS HiDPI example</title>
<style>
.map {
background: white;
}
</style>
</head>
<body>

2
examples/wmts-hidpi.js
View File

@@ -23,7 +23,6 @@ var urls = [
var hiDPI = ol.BrowserFeature.DEVICE_PIXEL_RATIO > 1;
var source = new ol.source.WMTS({
extent: [977844.377599999, 5837774.6617, 1915609.8654, 6295560.8122],
projection: 'EPSG:3857',
layer: hiDPI ? 'bmaphidpi' : 'geolandbasemap',
tilePixelRatio: hiDPI ? 2 : 1,
@@ -64,6 +63,7 @@ var source = new ol.source.WMTS({
var map = new ol.Map({
layers: [
new ol.layer.Tile({
extent: [977844.377599999, 5837774.6617, 1915609.8654, 6295560.8122],
source: source
})
],

2
examples/wmts.js
View File

@@ -35,6 +35,7 @@ var map = new ol.Map({
}),
new ol.layer.Tile({
opacity: 0.7,
extent: projectionExtent,
source: new ol.source.WMTS({
attributions: [attribution],
url: 'http://services.arcgisonline.com/arcgis/rest/' +
@@ -48,7 +49,6 @@ var map = new ol.Map({
resolutions: resolutions,
matrixIds: matrixIds
}),
extent: projectionExtent,
style: 'default'
})
})