[mapserver-users] wfs different level of detail

[Rahkonen Jukka]

Hi,

If you data are in a database it should be possible to take them out through simplify function. For PostGIS see http://postgis.refractions.net/docs/ST_Simplify.html
You should define the layer DATA in the mapfile with simplifying factor as a variable and then make OpenLayers to send the value as an extra parameter with GetFeature requests.

-Jukka Rahkonen-

> -----Alkuperäinen viesti-----
> Lähettäjä: mapserver-users-bounces at lists.osgeo.org 
> [mailto:mapserver-users-bounces at lists.osgeo.org] Puolesta 
> Daniel Carvalho
> Lähetetty: 28. marraskuuta 2010 17:14
> Vastaanottaja: mapserver-users at lists.osgeo.org
> Aihe: [mapserver-users] wfs different level of detail
> 
> hi
> 
> When I'm using WFS with OpenLayers, is it possible to make mapserver
> produce different detail level (simplifying geometries) 
> according to the
> zoom level I'm using?
> 
> That would be convenient to display maps with a lot of detail..
> 
> Or I should define different layers, with different details, and
> activate one of then according to the zoom level?
> 
> thks!
> 
> 
>