Hi, At first I did try with single full page requests to mapserver. However we do intend to have a fullscreen map available for our customers. Which means it will at least render 1024*768 png's. That would indicate that panning/scrolling behaviour will not be fluent, as you have indicated.
We're quite pleased with the current tiling output and performance. Perhaps I will need to write a proxy that translates tiles to actual boundary requests and then add some buffer space there. Or take a look at Paul's reply :). I'll try some things tomorrow if I have the time. On 24 August 2010 15:59, Rahkonen Jukka <jukka.rahko...@mmmtike.fi> wrote: > Hi Wim, > > If your data is that dynamic then there is not much advantage in using > tilecache. Perhaps there is not much advantage in making tiled requests > either. Applications asking for 256x256 pixel sized tiles from on-demand > bases are generating rather a lot of load for Mapserver. There is an > advantage on the user side because tiles are cached on the client side and > panning is fluent. However, the feeling is not necessarily bad even if the > client is making single tile WMS requests. With OpenLayers single tile > requests used together with "transition effect resize" is not bad at all. > Perhaps Google maps and Bing have some similar modes. Rendering and labeling > problems should go away by using single tiles. > > -Jukka Rahkonen- > > > > -----Alkuperäinen viesti----- > > Lähettäjä: mapserver-users-boun...@lists.osgeo.org > > [mailto:mapserver-users-boun...@lists.osgeo.org] Puolesta > > Stephen Woodbridge > > Lähetetty: 24. elokuuta 2010 16:43 > > Vastaanottaja: mapserver-users@lists.osgeo.org > > Aihe: Re: [mapserver-users] Mapserver tile generation - google maps > > > > 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&tilemod > e=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 > > _______________________________________________ > > > mapserver-users mailing list > > mapserver-users@lists.osgeo.org > > > <mailto:mapserver-users@lists.osgeo.org> > > > > > > http://lists.osgeo.org/mailman/listinfo/mapserver-users > > > > > > > > > > > > > > > > > > > > > _______________________________________________ > > > mapserver-users mailing list > > > mapserver-users@lists.osgeo.org > > > http://lists.osgeo.org/mailman/listinfo/mapserver-users > > > > _______________________________________________ > > mapserver-users mailing list > > mapserver-users@lists.osgeo.org > > http://lists.osgeo.org/mailman/listinfo/mapserver-users > > > _______________________________________________ > mapserver-users mailing list > mapserver-users@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/mapserver-users >
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