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Test that getLonLatFromPixel and getPixelFromLonLat are inverses of each

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other (within a reasonable tolerance)


git-svn-id: http://svn.openlayers.org/trunk/openlayers@11374 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
This commit is contained in:
crschmidt
2011-02-23 22:24:35 +00:00
parent fa32a4a645
commit f8db509725
1 changed files with 19 additions and 0 deletions
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tests/Map.html
+19
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@@ -1667,6 +1667,25 @@
map.destroy(); map.destroy();
} }
function test_pixel_lonlat(t) {
t.plan(4);
var map = new OpenLayers.Map({
div: "map",
layers: [
new OpenLayers.Layer("name", {isBaseLayer:true})
]
});
map.zoomToMaxExtent();
var px = map.getPixelFromLonLat(map.getLonLatFromPixel(new OpenLayers.Pixel(100, 100)));
t.eq(px.x, 100, "x is the same in and ot");
t.eq(px.y, 100, "y is the same in and out");
var ll = map.getLonLatFromPixel(map.getPixelFromLonLat(new OpenLayers.LonLat(100, 100)));
t.ok((ll.lon > (100 -map.getResolution()) && (ll.lon < (100 + map.getResolution()))), "lon is the same in and ot");
t.ok((ll.lat > (100 -map.getResolution()) && (ll.lat < (100 + map.getResolution()))), "lat is the same in and ot");
map.destroy();
}
</script> </script>
</head> </head>