[mapserver-users] wms tile image problem

[Budi Hermansyah]

Hi Guys,

I've tried to overlay the lance-modis daily wms image with openlayers, but
i've got the tiles position are not correct like seen on the picture below.
[image: Inline image 1]
and my code to initiate the layer are :
var Terra250_721 = new OpenLayers.Layer.MapServer(
"Terra250m_MODIS-bands7,2,1",
            "
http://lance-modis.eosdis.nasa.gov/cgi-bin/mapserv.cgi?map_layer[Terra250_721]=DATA+terr_721"+
"_2012348" + ".vrt",
            {
            layers:"Terra250_721",
            format: "image/jpeg;mode=24bit",
            map: 'rrglobal_terra250_721.map',
            // srsName : 'EPSG:900913',
            transparent: true

            },{
            isBaseLayer: false,
            opacity : 0.5,
            getURL : getwmsurl
            });


    APP.map.addLayer(Terra250_721);
    APP.map.addControl( new OpenLayers.Control.LayerSwitcher() );



function getwmsurl(bounds){
// console.log(bounds);
// console.log(this.map.getResolution());
bounds.transform(new OpenLayers.Projection("EPSG:900913"), new
OpenLayers.Projection("EPSG:4326"));
//
console.log(parseFloat(bounds.left).toFixed(2)+"+"+parseFloat(bounds.bottom).toFixed(2)+"+"+parseFloat(bounds.right).toFixed(2)+"+"+parseFloat(bounds.top).toFixed(2));
var url = this.url;
url += "&layers="+this.params.layers;
url += "&map="+this.params.map;
url += "&mode="+this.params.mode;
url += "&map_imagetype="+this.params.map_imagetype;
url +=
"&mapext="+parseFloat(bounds.left).toFixed(2)+"+"+parseFloat(bounds.bottom).toFixed(2)+"+"+parseFloat(bounds.right).toFixed(2)+"+"+parseFloat(bounds.top).toFixed(2);
url +=
"&imgext="+parseFloat(bounds.left).toFixed(2)+"+"+parseFloat(bounds.bottom).toFixed(2)+"+"+parseFloat(bounds.right).toFixed(2)+"+"+parseFloat(bounds.top).toFixed(2);
url += "&map_size=256+256";
url += "&imgx=128";
url += "&imgy=128";
url += "&imgxy=256+256";
return url;
}

any idea what wrong with that?

Thanks,
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