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TileCache only results in white images

3 messages

TileCache only results in white images

Reply Threaded

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

fmsd91

Re: TileCache only results in white images

Reply Threaded

Some javascript/style in this post has been disabled (why?)

I have the same issue trying to seed the following layer:

--------------------------------------------------------
[global]
type=WMS
url=http://158.109.174.111:8080/fcgi-bin/wms?map=C:\ms4w\maps\map\wms.map
layers=global_mosaic
bbox=180000,4600000,400000,4870000
srs=EPSG:4326
maxResolution=1132.8125
extension=jpeg
debug=true
size=512,512
bbox=415000,-200000,7500000,6000000
--------------------------------------------------------

My global layer in mapserver is defined like:

--------------------------------------------------------
LAYER # MODIS WMS map from JPL
    NAME         'global_mosaic'
    TYPE         RASTER
    OFFSITE      0 0 0
    STATUS       ON
    CONNECTIONTYPE WMS
    CONNECTION "http://onearth.jpl.nasa.gov/wms.cgi?"
    TOLERANCE 7
     TOLERANCEUNITS pixels
    MAXSCALEDENOM 2000000

    METADATA
    "wms_srs" "EPSG:4326"
    "wms_name" "global_mosaic"
    "wms_server_version" "1.1.1"
    "wms_format" "image/jpeg"
    END

    PROJECTION
    "init=epsg:4326"
    END
END # Modis WMS image ends here
--------------------------------------------------------

I get blank tiles...
Thanks for any help!

Francisco Domingues

> Date: Thu, 15 Oct 2009 01:58:58 -0700
> From: [hidden email]
> To: [hidden email]
> Subject: [Tilecache] TileCache only results in white images
>
>
> 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
>
> --
> View this message in context: http://n2.nabble.com/TileCache-only-results-in-white-images-tp3828062p3828062.html
> Sent from the TileCache mailing list archive at Nabble.com.
> _______________________________________________
> Tilecache mailing list
> [hidden email]
> http://openlayers.org/mailman/listinfo/tilecache

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fmsd91

Re: TileCache only results in white images

Reply Threaded

In reply to this post by Hanno79

Some javascript/style in this post has been disabled (why?)

I noticed that you have many resolutions in tilecache.cfg for only 5 levels...

Francisco Domingues

Novo Internet Explorer 8: traduza com apenas um clique. Baixe agora, é grátis!
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