Tilecache probably is not what you want if you have very dynamic tiles.
Or at least a tile cache that is persistent.
Your problem is with tile edge artifacts. It might be possible to draw
on a slightly larger image than the tile, then cut the tile out of it to
avoid some of those, but there are some tile artifacts that you can not
get away from when you draw single tiles, like label positioning and
label thinning over multiple tiles.
For an alternative, you might look to mapscript where you could have
more programmatic control over the rendering and do things like render a
larger image than needed and cut out the tile like I mentioned.
You might also write a bug against mode=tile and see what the developer
response to that might be.
-Steve W
On 8/24/2010 8:04 AM, Wim Vanbelle wrote:
For reference sake:
The issue is also present when using Bing maps as overlay.
I also recompiled mapserver against agg 2.5 and gd-2.0.36RC1, but no
change unfortunately.
As stated in my previous mail, I may have to look for alternatives as
the tilecache will probably not be an option for us.
Would it be possible to circumvent this problem by using WMS?
On 24 August 2010 07:25, Wim Vanbelle <wimvanbe...@gmail.com
<mailto:wimvanbe...@gmail.com>> wrote:
Hi,
Thank you for your time both.
Wouldn't using tilecache imply that I can no longer use dynamic
data? My tiles have to update every minute. Perhaps this is possible
with tilecache? Basically it's only the color value that changes for
each object.
An example request that is sent to mapserver:
http://...maps?map=/.../white.map&layers=%20&mode=tile&tilemode=gmap&tile=264+172+9
MapServer version 5.6.5 OUTPUT=GIF OUTPUT=PNG OUTPUT=JPEG
OUTPUT=WBMP OUTPUT=SWF OUTPUT=SVG SUPPORTS=PROJ SUPPORTS=AGG
SUPPORTS=FREETYPE SUPPORTS=ICONV SUPPORTS=FRIBIDI
SUPPORTS=WMS_SERVER SUPPORTS=WMS_CLIENT SUPPORTS=WFS_SERVER
SUPPORTS=WFS_CLIENT SUPPORTS=WCS_SERVER SUPPORTS=SOS_SERVER
SUPPORTS=FASTCGI SUPPORTS=THREADS SUPPORTS=GEOS SUPPORTS=RGBA_PNG
INPUT=EPPL7 INPUT=POSTGIS INPUT=OGR INPUT=GDAL INPUT=SHAPEFILE
My mapfile is configured like this:
OUTPUTFORMAT
NAME "AGGPNG"
DRIVER "AGG/PNG"
EXTENSION "png"
MIMETYPE "image/png;mode=24bit;"
IMAGEMODE RGBA
FORMATOPTION "INTERLACE=false"
FORMATOPTION "QUANTIZE_NEW=ON"
FORMATOPTION "QUANTIZE_FORCE=ON"
FORMATOPTION "QUANTIZE_DITHER=ON"
FORMATOPTION "QUANTIZE_COLORS=256"
END
Although I've used GD as well. Not sure how I can check the GD &
AGG versions.
I was in the process of making a new build for mapserver with the
lastest versions of everything though. I'll let you know if that
would somehow fix the problem.
On 24 August 2010 06:45, Stephen Woodbridge <wood...@swoodbridge.com
<mailto:wood...@swoodbridge.com>> wrote:
If you are using mode=tile, then this is a known limitation on
the mapserver side. There is a plan for 6.0 to add tilecache
support to mapserver that would allow you to generate meta tiles
and chop the tiles into a tilecache which is the way to resolve
the artifacts you are seeing.
http://trac.osgeo.org/mapserver/ticket/3513
You can add yourself the CC on this bug if you want to follow
it. There is also an RFC for the mode=tile which I don't have
handy that should give you more information on the limitations
and feature of that.
Hope this helps,
-Steve W
On 8/24/2010 12:34 AM, Lime, Steve D (DNR) wrote:
What mapserver version, what graphics driver? Is this using
mode=tile?
Steve ________________________________________ From:
mapserver-users-boun...@lists.osgeo.org
<mailto:mapserver-users-boun...@lists.osgeo.org>
[mapserver-users-boun...@lists.osgeo.org
<mailto:mapserver-users-boun...@lists.osgeo.org>] On Behalf
Of Wim Vanbelle
[wimvanbe...@gmail.com <mailto:wimvanbe...@gmail.com>] Sent:
Friday, August 20, 2010 6:26 AM To:
mapserver-users@lists.osgeo.org
<mailto:mapserver-users@lists.osgeo.org> Subject:
[mapserver-users] Mapserver
tile generation - google maps
Hi all,
I noticed a similar post regarding symbol issues, but there
was no
solution. My Google maps tiles are currently clipped at the tile
itself. This results in rather unwanted behaviour:
http://fileshare.myroute.be/exchange/Capture.PNG
I'm not 100% sure that this is mapservers' 'issue' , or
google maps
issue.
If anyone would have further tips to spice up the graphics
even more,
I'd be more than glad to hear them :).
Thanks. Wim _______________________________________________
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