[OpenLayers-Users] Calculate resolution for tiled images
Jimmy Aumard
jimmy.aumard at gmail.com
Fri Apr 23 06:20:50 EDT 2010
Hello,
I have no geographic tiled images who I put in OL with
OpenLayers.Layer.TileCache but in some zoom I have tiled who show twice.
I have an array (size of total image by zoom) like this
var zoomDim = [[259, 315], // zoom 0 = 259*315
[517, 631],
[1035, 1262],
[2069, 2523],
[4138, 5046],
[ 8276, 10092]]; // zoom 5 8276 * 10092
And I would like to know what resolutions put in my map. I have test this :
var _size = new OpenLayers.Size(300, 300);
map = new OpenLayers.Map( 'map', {
tileSize : _size,
maxExtent: new OpenLayers.Bounds(0,0,8276,10092),
//maxResolution: 'auto',
resolutions:[8276/300,4138/300,2069/300,1035/300,517/300,259/300],
numZoomLevels:6
});
It's work for the 3 first zoom but after I have tiles show twice. I think
it's my resolutions are wrong.
If anyone can help please.
Thanks
--
Aumard Jimmy
Développeur
KINAXIA
c/o CICA / PacaEst
2229 Route des Crêtes
F-06560 Sophia Antipolis
Tél.: +33 (0)4 8973 0242
Mob.: +33 (0)6 6017 2827
Fax : +33 (0)4 8307 6583
http://www.kinaxia.fr
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