[mapserver-users] MapServer + Tilecache

[Tyler Durden]

Hi Roger,
Definitely the problem is in the MAP file.
I've removed the projection parameter, still doesn't work.
Some parameters that I've not yet understand, namely: MAXSIZE and SIZE.

I don't understand what I'm doing wrong.
In Mapnik I just define srs="+proj=latlong +datum=WGS84" and is done.

On Thu, Nov 5, 2009 at 6:22 PM, Roger André <randre at gmail.com> wrote:
> Hi Tyler,
>
> I wonder if the "projection" line in your tilecache.cfg might be causing
> problems?  From what you show below, it looks like your "vias" data is in
> EPSG:4326 natively, and that you then force MapServer to reproject it to a
> custom mercator - which you say works fine.
>
> I think the "projection" and "srs" lines are conflicting with each other in
> your tilecache.cfg.
> In my setup, I have my data's native projection defined in the mapfile like
> you do, as 'PROJECTION "init=epsg:4326" END'.  But in my tilecache.cfg, I
> only specify what output projection I want, in this case EPSG:900913.
>
> [v2_20m_global]
> type=MapServerLayer
> mapfile=/var/www/mapfiles/v2_20m_global/v2_20m_global.map
> metaTile=true
> metaSize=2,2
> metaBuffer=0,500
> layers=imagery
> spherical_mercator=true
> srs=EPSG:900913
>
> My suggestion would be to remove the "projection line entirely and see if
> you get tiles generated in EPSG:4326 correctly.  If that works, try
> specifying a different EPSG code.  If you get reprojected tiles that way,
> you can try fiddling with the "projection" parameter in the tilecache.cfg,
> or add a new projection line to your /share/proj/epsg file with your custom
> parameters and point to its code in the tilecache.cfg "srs" line.
>
> Best of luck,
>
> Roger
> --
>
>
> On Wed, Nov 4, 2009 at 10:52 AM, Tyler Durden <tylersticky at gmail.com> wrote:
>>
>> Hi all,
>> I'm new to MapServer, until now I've used Mapnik to generate my tiles.
>> But I want to try MapServer and I can't figure out what I'm doing
>> wrong.
>> If I run via WEB interface it renders fine, but with Tilecache the
>> tiles appears blank.
>> Any idea what I'm doing wrong?
>>
>> Thanks in advance.
>>
>> MAP
>>  NAME "test"
>>  EXTENT         -961006 5034756 -955378 5036634
>>
>>  IMAGECOLOR 255 255 0
>>  IMAGETYPE JPEG
>>  SIZE 256 256
>>  STATUS ON
>>  UNITS METERS
>>  MAXSIZE 5000
>>
>>  SHAPEPATH      "/home/tyler/Projects/Python/mapserver/tilecache/vias/"
>>
>>  PROJECTION
>>        "proj=merc"
>>        "a=6378137"
>>        "b=6378137"
>>        "lat_ts=0.0"
>>        "lon_0=0.0"
>>        "x_0=0.0"
>>        "y_0=0"
>>        "k=1.0"
>>        "units=m"
>>        "nadgrids=@null"
>>        "wktext"
>>        "no_defs"
>>  END
>>
>>  LAYER
>>        NAME vias
>>        TYPE LINE
>>        DATA vias
>>        STATUS default
>>        OFFSITE 0 0 0
>>        PROJECTION
>>          "init=epsg:4326"
>>        END
>>        CLASS
>>          NAME "Countries"
>>          OUTLINECOLOR 0 0 0
>>        END
>>    TRANSFORM true
>> END
>>
>> tilecache.cfg:
>>
>> [cache]
>> type=Disk
>> base=/home/tyler/Projects/Python/mapserver/tilecache/cache
>>
>> [base]
>> type=MapServerLayer
>> layers=vias
>> mapfile=/home/tyelr/Projects/Python/mapserver/tilecache/vias.map
>> projection=+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0
>> +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +no_defs +over
>> bbox=-20037508,-20037508,20037508,20037508
>> maxResolution=2000
>> srs=EPSG:4326
>> levels=12
>> extension=jpeg
>> size=256,256
>> metaTile=yes
>> metaBuffer=512
>> metaSize=5,5
>> debug=on
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>
>