[Tilecache] TileCache only results in white images

[Hanno79]

hello list,

I'm new in using TileCache with OpenLayers. Perhaps you can help me.

I try to make Tiles for different Layers. First I have some Polygons with
region-borders. After this I have some background data like streets for
example.

In my OpenLayers file I use the follwing code:

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});

 
You can see that i'm using an skript which generates an sld file. This file
works with the mergeNewParams Parameter.

I get the data out of a postgreSQL database.

In my tilecache.cfg file I have this code:

[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

----------------------------------------------

[seen]
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=seen
extension=png
transparency=true
extent_type=loose
srs=EPSG:21781
bbox=555100,129900,678450,245000

--------------------------------------------

And now I have a problem.
For the Layer "seen" all works fine I get the Tiles and all is ok. In my
TielCache Directory I have the different png files.

But with the Layer "gemeinden_2008" it doesn't work. I only get white
images. On the Server in the TielCache Directory I have different white
images without the map-data.

I don't know where what I have to do to correct the error. Perhaps somebody
can help me.

I use OpenLayers 2.8 with UMN Mapserver and PostgreSQL database.

Thank you very much for your help.

Greetings
Hanno Rahn

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