Files
openlayers/examples/zoomify.js
2015-04-17 06:22:38 -06:00

54 lines
1.4 KiB
JavaScript

goog.require('ol.Map');
goog.require('ol.View');
goog.require('ol.layer.Tile');
goog.require('ol.proj');
goog.require('ol.proj.Projection');
goog.require('ol.source.Zoomify');
// This server does not support CORS, and so is incompatible with WebGL.
//var imgWidth = 8001;
//var imgHeight = 6943;
//var url = 'http://mapy.mzk.cz/AA22/0103/';
//var crossOrigin = undefined;
var imgWidth = 9911;
var imgHeight = 6100;
var url = 'http://vips.vtech.fr/cgi-bin/iipsrv.fcgi?zoomify=' +
'/mnt/MD1/AD00/plan_CHU-4HD-01/FOND.TIF/';
var crossOrigin = 'anonymous';
var imgCenter = [imgWidth / 2, - imgHeight / 2];
// Maps always need a projection, but Zoomify layers are not geo-referenced, and
// are only measured in pixels. So, we create a fake projection that the map
// can use to properly display the layer.
var proj = new ol.proj.Projection({
code: 'ZOOMIFY',
units: 'pixels',
extent: [0, 0, imgWidth, imgHeight]
});
var source = new ol.source.Zoomify({
url: url,
size: [imgWidth, imgHeight],
crossOrigin: crossOrigin
});
var map = new ol.Map({
layers: [
new ol.layer.Tile({
source: source
})
],
renderer: exampleNS.getRendererFromQueryString(),
target: 'map',
view: new ol.View({
projection: proj,
center: imgCenter,
zoom: 0,
// constrain the center: center cannot be set outside
// this extent
extent: [0, -imgHeight, imgWidth, 0]
})
});