[OpenLayers-Users] Problems with map section on Antarctica

[Andreas Hocevar]

A latitude of -89.983333 is beyond the validity extent of EPSG:900913.
Keep in mind that the poles stretch to infinity in this projection.

You have to use a projection that is appropriate for mapping the south
pole, and you won't be able to use Mapnik tiles with that.

Andreas.

On Mon, Jul 18, 2011 at 5:49 PM, Jürgen Dankoweit
<Juergen.Dankoweit at t-online.de> wrote:
> Hello to the list.
>
> With the code below there is no map displayed. Why not? If I change the
> bounding box to coordinates more nortly then a map is displayed.
> First I thought that there is only ice but I checked this on the
> OpenStreetmap-Site and there a coast line should be drawn.
>
> Many thanks for tips and hints.
>
> Best regards
>
> Juergen
>
> code:
> function init(){
> var map;
> var point;
> var lonLat;
> var sphericalMercator = new OpenLayers.Projection('EPSG:900913');
> var epsg4326 = new OpenLayers.Projection('EPSG:4326');
> var leftBottom = new
> OpenLayers.LonLat(166.516667,-89.983333).transform(epsg4326,
> sphericalMercator);
> var rightTop = new
> OpenLayers.LonLat(179.983333,-77.850000).transform(epsg4326,
> sphericalMercator);
> var bounds = new OpenLayers.Bounds(leftBottom.lon, leftBottom.lat,
> rightTop.lon, rightTop.lat);
>
> var layer = new OpenLayers.Layer.OSM.Mapnik('Standardkarte');
> map = new OpenLayers.Map('map', {
>        maxExtent: bounds, restrictedExtent: bounds, projection: sphericalMercator,
>        displayProjection: epsg4326,
>        controls: [
>                new OpenLayers.Control.Navigation(),
>                new OpenLayers.Control.PanZoomBar(),
>                new OpenLayers.Control.OverviewMap(),
>                new OpenLayers.Control.LayerSwitcher({'ascending':false})
>        ]
> });
> map.addLayer(layer);
>
> lonLat = new OpenLayers.LonLat((leftBottom.lon +
> rightTop.lon)/2,(leftBottom.lat + rightTop.lat) / 2)
>        .transform(epsg4326, map.getProjectionObject());
> map.setCenter(lonLat);
> map.zoomToMaxExtent();
> map.addControl(new OpenLayers.Control.LayerSwitcher());
> }
> --
> Meine stets unfertige Homepage: www.dankoweit.de
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>



-- 
Andreas Hocevar
OpenGeo - http://opengeo.org/
Expert service straight from the developers.