[Tilecache] Tilecache not seeding

[Roger André]

Hi Damiano,

Glad to hear that you're getting tiles now.  I think that your tilecache.cfg
should have the srs defined of the projection that you wish the tiles to be
created in.  The installation readme for TileCache states that if you don't
define an SRS, EPSG:4326 is assumed.

I'm a little confused about whether your problem is a) that the tiles are
being generated in the wrong projection,  or b) that you are getting too
many tiles generated, over a larger extent than you need.  For a), I think
you need to define your projection, both in MapServer, and in TileCcahe.
For b), run tilecache.see.py with the extents defined, like this:
  tilecache_seed.py <URL> basic <zoom_start> <zoom_end> "12,41,13,42"

Good luck.

Roger
--

On Sun, Oct 26, 2008 at 2:52 AM, Damiano Morosi <damiano.morosi at gmail.com>wrote:

> Hi,
>
> thanks, now the tiles are produced well. I still have a problem: it seems
> that the bbox coordinates are "unprojected", while the tiles are generated
> "projected". I don't want to produce the world tiles, only for my city
> (Rome) that can be contained in the 12,14,13,43 long/lat bbox, but the
> result is slightly different. Why?
>
> 2008/10/25 Roger André <randre at gmail.com>
>
> I think you need to add some parameters to the LAYER METADATA section of
>> your mapfile.  Like this:
>>
>>     METADATA
>>       "wms_srs"             "EPSG:4326 EPSG:102004 EPSG:900913"
>>       "wms_name"            "states"
>>       "wms_server_version"  "1.1.1"
>>       "wms_format"          "image/png"
>>       "wms_onlineresource"  "
>> http://localhost/cgi-bin/mapserv?map=/var/www/mapfiles/states/states.map&
>> "
>>     END
>> --
>>
>>
>> On Sat, Oct 25, 2008 at 5:36 AM, Christopher Schmidt <
>> crschmidt at metacarta.com> wrote:
>>
>>> On Sat, Oct 25, 2008 at 02:21:38PM +0200, Damiano Morosi wrote:
>>> > Hi all,
>>> >
>>> > this is the first time I use Tilecache. I'm trying to generate tiles
>>> for a
>>> > Map (that I can visualize successfully in OpenLayers with Mapserver).
>>> The
>>> > .map file is as following:
>>> >
>>> > ----
>>> >
>>> > #
>>> > # Start of map file
>>> > #
>>> > #
>>> > NAME NAVSTREETS
>>> > STATUS ON
>>> > SIZE 600 600
>>> > SYMBOLSET "/var/www/maps/symbols.sym"
>>> > EXTENT 12 41 13 42
>>> >
>>> > SHAPEPATH "/var/www/shapes/"
>>> > IMAGETYPE png
>>> > IMAGECOLOR 150 150 150
>>> >
>>> > #
>>> > # Start of web interface definition
>>> > #
>>> > WEB
>>> >   #MINSCALE 2000000
>>> >   #MAXSCALE 50000000
>>> >   IMAGEPATH "/tmp/ms_tmp/"
>>> >   IMAGEURL "/ms_tmp/"
>>> >   METADATA
>>> >     "wms_title" "navstreet map"
>>> >     "wms_onlineresource" "
>>> http://213.199.15.252/cgi-bin/mapserv?map=ms.map&"
>>> >
>>> >   END
>>> >   TEMPLATE "test.html"
>>> > END
>>> >
>>> > # Layers
>>> >
>>> > LAYER
>>> >   METADATA
>>> >         "queryable" "true"
>>> >         "wms_title" "GreenA"
>>> >   END
>>> >
>>> >   TEMPLATE "test.html"
>>> >
>>> >   NAME GreenA
>>> >   TYPE POLYGON
>>> >   STATUS ON
>>> >
>>> >   DATA LandUseA
>>> >  CLASS
>>> >     NAME "Streets"
>>> >     OUTLINECOLOR 0 255 0
>>> >     COLOR 0 255 0
>>> >   END
>>> > END # layer
>>> >
>>> > END # MAP
>>> >
>>> > ----
>>> >
>>> > The following is my tilecache.cfg file:
>>> >
>>> > ----
>>> >
>>> > [cache]
>>> > base = /tmp/tilecache
>>> > type = Disk
>>> >
>>> > [basic]
>>> > layers = GreenA
>>> > spherical_mercator = no
>>> > data_extent = 12,41,13,42
>>> > extension = png
>>> > url = http://213.199.15.252/cgi-bin/mapserv?map=ms.map
>>> > metatile = no
>>> > bbox = 12,41,13,42
>>> > type = WMS
>>> >
>>> > ----
>>> >
>>> > The layer is deriving from a shapefile. Then I try the command:
>>> >
>>> > python tilecache_seed.py "http://213.199.15.252/cgi-bin/tilecache.cgi
>>> ?"
>>> > basic 0 5
>>> >
>>> > and I get the error
>>> >
>>> > msWMSLoadGetMapParams(): WMS server error. Invalid SRS given : SRS must
>>> be
>>> > valid for all requested layers.
>>> >
>>> > The point is that I don't want to project my map, so as far as I know,
>>> I
>>> > haven't to set a projection object in mapfile. Is it mandatory to
>>> fullfill
>>> > the tilecache requisites? How can I produce tiles from map that are
>>> usable
>>> > by OpenLayers?
>>>
>>> You need to set up your mapfile for WMS.
>>>
>>> http://mapserver.gis.umn.edu/docs/howto/wms_server
>>>
>>> http://mapserver.gis.umn.edu/docs/howto/wms_server/#setup-a-mapfile-for-your-wms
>>>
>>> > Thank you all,
>>> >
>>> > Damiano Morosi
>>>
>>> > _______________________________________________
>>> > Tilecache mailing list
>>> > Tilecache at openlayers.org
>>> > http://openlayers.org/mailman/listinfo/tilecache
>>>
>>>
>>> --
>>> Christopher Schmidt
>>> MetaCarta
>>> _______________________________________________
>>> Tilecache mailing list
>>> Tilecache at openlayers.org
>>> http://openlayers.org/mailman/listinfo/tilecache
>>>
>>
>>
>
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