[OpenLayers-Users] wfs markers without the redraw?

[Eric Lemoine]

Hi. Have you added the layer to the map? If so you'll have to share
more code so that we can help you debug that one. Cheers. Eric

2008/8/13, Brenningmeyer, Todd <tbrenningmeyer at maryville.edu>:
> Thanks Eric.  I got the getfeature request to work as a URL but the script
> fails in openlayers in SetMap at
> "this.renderer.setSize(this.map.getSize());"  GetSize is undefined when I
> use GML rather than WFS.  Do you have any ideas how to set the getsize or
> why it would fail here under GML but not with WFS?  The syntax I'm using is:
>            gmlLayer = new OpenLayers.Layer.GML( "villages",
>                 "http://localhost/cgi-bin/mapserv.exe",{
>                 map:"../htdocs/amap/sites_wfs.map",
>                 typename: "villages",
>                outputformat: "gml2"});
> If you have any ideas please let me know and thanks again for your help.
> Todd
>
> ________________________________
>
> From: Eric Lemoine [mailto:eric.c2c at gmail.com]
> Sent: Tue 8/12/2008 3:31 PM
> To: Brenningmeyer, Todd; users at openlayers.org
> Subject: Re: [OpenLayers-Users] wfs markers without the redraw?
>
>
>
> Hi. You can use OpenLayers.Layer.GML but you'll need to have the
> appropriate params in the url to make the request an actual GetFeature
> request. Eric
>
> 2008/8/12, Brenningmeyer, Todd <tbrenningmeyer at maryville.edu>:
>> Hi,
>>
>> I've been trying to sort out exactly how to display my point data and
>> really
>> appreciate the help on the use of stylemaps vs. slds etc.  I have a
>> related
>> but slightly different question that I've been trying to sort out via the
>> online help and list serve archives etc. but am not getting very far.  I
>> have a series of sites in postGIS and am currently displaying these as wfs
>> data.  The data loads somewhat slowly but the issue is that it refreshes
>> or
>> redraws each time the user zooms in or out.  In my last attempt I
>> converted
>> the wfs data to markers but it still refreshes during each zoom and
>> sometimes during the pan.  Is there a way to avoid the redraw using wfs?
>> What is the best solution for serving about 200+ points?  Do I need to
>> load
>> the markers from a textfile to avoid the redraw or is there a very simple
>> solution that I've probably overlooked?  I've seen several questions about
>> speed of wfs for 300+ features but I'm still not clear on the difference
>> in
>> the use and creation of markers vs. vector points.  If both are created
>> directly from postgis will they be forced to refresh or redraw in the same
>> way during a zoom?
>>
>> Thanks again for your help
>>
>> Todd
>>
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>
>
>