[postgis-users] Mapserver WMS and Google Maps

[marco vieira]

Gerard
  Postgis calculate the extents for each mapserver requisition (for each
tile) and mapserver draws it with your symbolization. In this case the
extents of a particular tile do not involve the point with you want to draw
but the contiguous tile involve. The problem is that the symbol size you are
drawing to a particular tile (one requisition) is big than virtual invade
the area os another tile (another requisition) but this last requisiton not
contains this point (and didn't draw it).
  I think that there is no way to eliminate this problem for all cases
because of tiling method of google maps but you may ask for mapserver-users
list about simbolization issues.
Regards,

-- 
Marco Vieira
+55 21 9499-6800
e-mail: maovieira at gmail.com

2007/1/8, Gerard Troost <Gerard.Troost at sovon.nl>:
>
>  Hi all,
>
> Last week i used some time to configure our mapserver as wms-server and
> after that adding an wms-layers to Google Maps. In basic this has not to be
> very difficult but,  some strange things took lots of time. Last weekend
> i've get everything working an i must say, is works good.
>
> But now i have everything working i have 2 questions left.
>
> A. The attached picture is a (part of) an WMS layer projected on Google
> Maps. Everything looks fine but if you take a closer look you can see that
> the points 7 and the lower right point not drawn correctly because they are
> plotted near an imageborder (Google Maps downloads each layer in tiles.).
> How can i solve this problem?
>
> B. I find out that the WMS extent for postgis layers is not calculated
> automaticly. If i add an layer based on a shape file it calculated wms
> extent automaticly.
>
> Thanks for you answers or suggestions,
> *
> Gerard Troost
> **SOVON Dutch Centre for Field Ornithology
> *
>
> _______________________________________________
> postgis-users mailing list
> postgis-users at postgis.refractions.net
> http://postgis.refractions.net/mailman/listinfo/postgis-users
>
>
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/postgis-users/attachments/20070109/118d6027/attachment.html>