Hi Ozodbek,

You're projecting from Geographical (Lon/Lat) WGS84 coordinate system
to spherical Mercator (spheroid not an ellipsoid) , right? In this
process you're getting coordinates which are outside of the valid
longitude range (-180,180). The workaround depends on your
requirements. Try using Mercator with WGS84 ellipsoid, or pre-process
your original dataset to use spheroid and clip all features to the
extent which will keep proj4 happy e.g

-180,-85,180,85

We're aware of this issue and current behaviour is far from ideal.
This is something we're hoping to address in upcoming releases.

Regards,
Artem


2010/1/28 Ozodbek Ulmasov <[email protected]>:
> Map was shown incorrect when I opened it in browser.
> To check it please visit this link http://max.uz/mapnik.gif
> I also noticed disappearing of layers when zooming.
> The same problem occures with other maps.
> I really need your help, can you please suggest me how can I solve the 
> problems.
>
> Best regards
> Ozodbek Ulmasov
> _______________________________________________
> Mapnik-users mailing list
> [email protected]
> https://lists.berlios.de/mailman/listinfo/mapnik-users
>
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