[OpenLayers-Users] OpenLayers and Tilecache doesn't work with "mergeNewParams" Parameter

[Marc Jansen]

Hi Hanno,

is there any chance that the URL- parameter SLD is not being forwarded 
to your mapserver? Maybe you can check any log files of either Tilecache 
or Mapserver.

Regards,
Marc


Rahn Hanno (rahn) schrieb:
>
> Hello list,
>
> I still have a problem with my TileCache configuration. I try 
> something out but it doesn’t work. I think it is a problem with the 
> mergeNewParams Parameter in OpenLayers. All other layers work but the 
> layer with the mergeNewParams doesn’t. As new Param I get a php-Skript 
> which generates an SLD-File for styling the map. I hope you can help 
> me again. Without TileCache all works fine. And all layers without the 
> mergeNewParams works, too. With the mergeNewParams Parameter I only 
> get white Tiles without any error message. At the Server there are 
> white png-files in the output Directory from Tilecache.
>
> Here are my code fragments. Perhaps you can see the error. I think my 
> resolutions and my extents are ok.
>
> _Tilecache.cfg_
>
> [gemeinden_2008]
>
> type=WMS
>
> url=http://webgis.hsw.ch/cgi-bin/mapserv.exe?map=C:/ms4w/Apache/htdocs/GINES/Maps/Gemeinden_Bern.map
>
> #mapfile=C:/ms4w/Apache/htdocs/GINES/Maps/Gemeinden_Bern.map
>
> layers=gemeinden_2008
>
> maxresolution=481.8359375
>
> minresolution=0.0009190291166305542
>
> resolutions=481.8359375, 240.91796875, 120.458984375, 60.2294921875, 
> 30.11474609375, 15.057373046875, 7.5286865234375, 3.76434326171875, 
> 1.882171630859375, 0.9410858154296875, 0.47054290771484375, 
> 0.23527145385742188, 0.11763572692871094, 0.058817863464355469, 
> 0.029408931732177734, 0.014704465866088867, 0.0073522329330444336, 
> 0.0036761164665222168, 0.0018380582332611084, 0.0009190291166305542
>
> levels=5
>
> extension=png
>
> extent_type=loose
>
> srs=EPSG:21781
>
> bbox=555100,129900,678450,245000
>
> metaTile=true
>
> _OpenLayers_
>
> _ _
>
> var url = "http://webgis.hsw.ch/GINES/Styling/mysld_bezirke.php?";
>
> var urlFusion = "http://webgis.hsw.ch/GINES/Styling/mysld_fusion.php?";
>
> var urlArray = ["http://webgis.hsw.ch/cgi-bin/mapserv.exe?", 
> "http://195.176.253.211/cgi-bin/mapserv.exe?"];
>
> var urlArrayTC = 
> ["http://webgis.hsw.ch/cgi-bin/tilecache/tilecache.cgi?"];
>
> var mapFile = "../htdocs/GINES/Maps/Gemeinden_Bern.map";
>
> var options1 = {
>
> maxExtent: new OpenLayers.Bounds(555100,129900,678450,245000),
>
> maxScale: '500',
>
> minScale: '458262',
>
> resolutions:[481.8359375, 240.91796875, 120.458984375, 60.2294921875, 
> 30.11474609375, 15.057373046875, 7.5286865234375, 3.76434326171875, 
> 1.882171630859375, 0.9410858154296875, 0.47054290771484375, 
> 0.23527145385742188, 0.11763572692871094, 0.058817863464355469, 
> 0.029408931732177734, 0.014704465866088867, 0.0073522329330444336, 
> 0.0036761164665222168, 0.0018380582332611084, 0.0009190291166305542],
>
> maxresolution:481.8359375,
>
> minresolution:0.0009190291166305542,
>
> units: 'm',
>
> projection: "EPSG:21781",
>
> controls: []
>
> };
>
> var map = new OpenLayers.Map('map',options1);
>
> var wms = new OpenLayers.Layer.WMS("Gemeinden",urlArrayTC, 
> {map:mapFile,layers:layerName,format:"image/png",EXCEPTIONS:"application/vnd.ogc.se_inimage"} 
> );
>
> var 
> sld_string=url+"jahr="+jahr+"&indikator="+indikator1+"&klassen="+klassen+"&vis="+vis+"&fusion="+jahr4+"&farbe="+farbe;
>
> wms.mergeNewParams({ SLD:sld_string});
>
> Greetings
>
> Hanno Rahn
>
> ------------------------------------------
>
> Hanno Rahn, Dipl.-Ing. (FH) Geoinformatik
>
> ZHAW Zürcher Hochschule für Angewandte Wissenschaften Umwelt und 
> Natürliche Ressourcen
>
> Fachstelle Geoinformatik
>
> Grüental, Postfach CH-8820 Wädenswil
>
> Tel +41 (0)58 934 5592
>
> Fax +41 (0)58 934 5580
>
> hanno.rahn at zhaw.ch
>
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