AW: [Mapbender-users] MB 2.5: Problems with legends in pdf-print using mapserver's agg

Armin Retterath armin.retterath at lvermgeo.rlp.de
Wed Apr 29 10:12:38 EDT 2009 

hello herbert,
i think, that mb_log logs only the requests, that are done by the client 
itself. the printing of the maps is done by getting the pictures with curl or 
http. there are 2 classes classes/weldMaps2PNG.php and and 
classes/class_stripRequest.php.
in class_stripRequest.php there is a function setPNG()
change it for testing.
one problem: if you use curl for doing the request you must adopt 
class_connector.php, cause curl have problems with 'image/png; mode=
24bit' in urls - i've got a adopted one if you need it. ;-)
greetings
armin
Am Mittwoch 29 April 2009 14:56:37 schrieb Schönhammer, Herbert:
> Hi Michael,
> Hi list,
>
> I'm back again with (nearly) the same problem ;-)
>
> Now I've got a server, reachable from Internet. I wanted to build a gui for
> testing the troubles. But with some further trial and error I found a
> combination of mapserver/agg-parameters and mapbender-parameters which are
> avoiding the described problem.
>
> But now I have another problem in printing the map (please see below !)
>
> First things, which are doing right now:
>
> In my MAPFILE I'm using now:
> ---------------------------
> # 24 Bit Farbe
> OUTPUTFORMAT
>   NAME 'AGGA'
>   #MIMETYPE 'image/png'             <======= you MUST NOT use the MIMETYPE
> attribute !!!! DRIVER AGG/PNG
>   EXTENSION PNG
>   IMAGEMODE RGBA
> END
>
> LEGEND
>   STATUS ON
>   KEYSIZE 30 20
>   KEYSPACING 10 5
>     LABEL
>      COLOR 0 0 0
>      TYPE TRUETYPE
>      FONT "verdana"
>      SIZE 8
>     END
>   TRANSPARENT ON
>   IMAGECOLOR 255 255 255
> END
>
>
> In mapbender wms-gui settings I use:
> -------------------------------------
> "image/png; mode=24bit" for this wms
>
>
> The result is
> --------------
> I have a map with good quality ON THE SCREEN, the legend ON THE SCREEN is
> okay (has transparent background) AND THE LEGEND ON THE PRINT IS OKAY NOW
> (the legend has also a transparent background).
>
>
> The new problem is:
> -------------------
> Now the quality in the MAP of the print is poor. It seems, that the
> print-module is ignoring the mapbender-setting "image/png; mode=24bit".
>
> In detail:
>
> In mb_log the following request is logged as request for printing (I have
> replaced ' ' through '%20' because the server is online; you may try the
> requests !!):
> http://stadtplan2.regensburg.de/cgi-bin/getows?map=/cityportal-maps/rgb_pri
>nttest-agg24.map&VERSION=1.1.1&REQUEST=GetMap&SERVICE=WMS&LAYERS=strassenach
>sen&STYLES=&SRS=EPSG:31468&BBOX=4506700.1038532015,5431380.99999632,4506868.
>999796765,5431617.833858754&WIDTH=1780&HEIGHT=2496&FORMAT=image/png;%20mode=
>24bit&BGCOLOR=0xffffff&TRANSPARENT=TRUE&EXCEPTIONS=application/vnd.ogc.se_in
>image
>
> The request above delivers the correct image with good quality in 24bit
> color.
>
>
>
> But in webservers-log all requests for printing DO NOT use the "image/png;
> mode=24bit". They only use "image/png". The corresponding line in
> apache-log is: 192.168.2.16 - - [29/Apr/2009:14:03:13 +0200] "GET
> /cgi-bin/getows?map=/cityportal-maps/rgb_printtest-agg24.map&VERSION=1.1.1&
>REQUEST=GetMap&SERVICE=WMS&LAYERS=strassenachsen&STYLES=&SRS=EPSG:31468&BBOX
>=4506700.1038532015,5431380.99999632,4506868.999796765,5431617.833858754&WID
>TH=1780&HEIGHT=2496&FORMAT=image/png&BGCOLOR=0xffffff&TRANSPARENT=TRUE&EXCEP
>TIONS=application/vnd.ogc.se_inimage HTTP/1.0" 200 37121 "-" "-"
>
> for trying:
> http://stadtplan2.regensburg.de/cgi-bin/getows?map=/cityportal-maps/rgb_pri
>nttest-agg24.map&VERSION=1.1.1&REQUEST=GetMap&SERVICE=WMS&LAYERS=strassenach
>sen&STYLES=&SRS=EPSG:31468&BBOX=4506700.1038532015,5431380.99999632,4506868.
>999796765,5431617.833858754&WIDTH=1780&HEIGHT=2496&FORMAT=image/png&BGCOLOR=
>0xffffff&TRANSPARENT=TRUE&EXCEPTIONS=application/vnd.ogc.se_inimage
>
> The request above delivers poor quality in 8bit color, which is used for
> printing !!!
>
>
> Obviously the logged map-request in mb_log differs from the map-requests
> sent to the webserver  !?!?!
>
>
> Tipps for me ?
> --------------
> Does anybody know where
> - the map-requests for printing are created ?
> - the map-requests for logging are created ?
> - the getlegendgraphic-requests for printing are created ?
>
> How to ensure, that the mapbender settings for mapformat are also used for
> printing ?
>
> I'm using MB 2.5 !!
>
> (If you want to make your own trials, this gui is now online for testing:
> http://stadtplan2.regensburg.de/mb25/frames/login.php?name=stadtplan&passwo
>rd=stadtplan&mb_user_myGui=Printtest )
>
>
> Thanks a lot
> greetings
> Herbert
>
> >-----Ursprüngliche Nachricht-----
> >Von: mapbender_users-bounces at lists.osgeo.org
> >[mailto:mapbender_users-bounces at lists.osgeo.org] Im Auftrag
> >von Michael Schulz
> >Gesendet: Dienstag, 3. März 2009 14:05
> >An: Mapbender User List
> >Betreff: Re: [Mapbender-users] MB 2.5: Problems with legends
> >in pdf-print using mapserver's agg
> >
> >
> >Hi Herbert,
> >
> >I am somewhat at the end of my latin ;-)
> >
> >class_SaveLegend should create a white background rectangle in each
> >created legend image. If I remember correctly your using the RGBA mode
> >in your outputformat. Could you try with only RGB? Maybe the pdf class
> >image functions cannot handle alpha channel transparency.
> >
> >Cheers, Michael
> >
> >2009/3/3 Schönhammer, Herbert <Schoenhammer.Herbert at regensburg.de>:
> >> Hi Michael,
> >>
> >> (sorry today and tomorrow I have a lot of dates :-(, so i'm
> >
> >late to answer ! )
> >
> >> following your hints, I'm observing following:
> >>
> >> 1) I'm using again: image/png as wms setting
> >> 2) $unlink=false: The png -file of the legend-picture is a
> >
> >24 bit picture with the wrong (=black) background-color
> >
> >> 3) Looking at apache-log mapbender's
> >
> >getlegendgraphic-request uses "image/png"
> >
> >> 4) Taking the request from apache-log and sending this
> >
> >request to mapserver: the picture comes with transparent
> >background (like it should be) as a 24 bit png !
> >
> >> => The request from mapbender to mapserver has a correct 24
> >
> >bit png as result
> >
> >> => The temporary file in the tmp- directory is also a 24bit
> >
> >png, but with wrong background color
> >
> >> => This wrong (black) png is inc´luded into the generated pdf !
> >>
> >>
> >> P.S: I'm not able to give you access to the services. From
> >
> >Internet they will be rechable next weak !
> >
> >> regards
> >> Herbert
> >>
> >>>-----Ursprüngliche Nachricht-----
> >>>Von: mapbender_users-bounces at lists.osgeo.org
> >>>[mailto:mapbender_users-bounces at lists.osgeo.org] Im Auftrag
> >>>von Michael Schulz
> >>>Gesendet: Montag, 2. März 2009 17:57
> >>>An: Mapbender User List
> >>>Betreff: Re: [Mapbender-users] MB 2.5: Problems with legends
> >>>in pdf-print using mapserver's agg
> >>>
> >>>
> >>>Hi,
> >>>
> >>>the problem with 24bit rendering is, that mapserver publishes that as
> >>>"image/png;mode=24bit" in the wms getcapabilities if you don't define
> >>>a special outputformat. So, when you have set image/png as
> >>>image-format in mapbender and you get a 24bit png back everything is
> >>>perfect.
> >>>
> >>>Have you tried setting $unlink=false in printPDF.conf and
> >
> >then examine
> >
> >>>the temporary images while generating the pdf output? I am not sure,
> >>>if this has impact on the legend images, but it could be worth a try.
> >>>
> >>>Cheers, Michael
> >>>
> >>>2009/3/2 Schönhammer, Herbert <Schoenhammer.Herbert at regensburg.de>:
> >>>> Hi Michael,
> >>>>
> >>>> sorry I don't really understand your hint :-(
> >>>>
> >>>> At the moment I use (wms-gui-settings): "image/png"
> >>>>
> >>>> But there is no difference between "image/png" and
> >>>
> >>>"image/png; mode=24bit".
> >>>
> >>>> Only the settings in the mapfile determine the outputformat.
> >>>
> >>>So the following always generates a 8bit output. In this case,
> >>>the printig of the picture in the legend is okay, but the
> >>>quality of the map is very very poor.
> >>>
> >>>> # 8 Bit Farbe
> >>>> OUTPUTFORMAT
> >>>>    NAME 'AGG_Q'
> >>>>    DRIVER AGG/PNG
> >>>>    IMAGEMODE RGB
> >>>>    FORMATOPTION "QUANTIZE_FORCE=ON"
> >>>>    FORMATOPTION "QUANTIZE_DITHER=OFF"
> >>>>    FORMATOPTION "QUANTIZE_COLORS=256"
> >>>> END
> >>>>
> >>>> So I want a map with 24bit color.
> >>>>
> >>>> Please: Could you give me some more hints?
> >>>>
> >>>> What shall I use ? "image/png" or "image/png; mode=24bit" in
> >>>
> >>>wms-settings?
> >>>
> >>>> What settings in the mapfile should be done in this case ?
> >>>>
> >>>> regards
> >>>> Herbert Schönhammer
> >>>>
> >>>>>-----Ursprüngliche Nachricht-----
> >>>>>Von: mapbender_users-bounces at lists.osgeo.org
> >>>>>[mailto:mapbender_users-bounces at lists.osgeo.org] Im Auftrag
> >>>>>von Michael Schulz
> >>>>>Gesendet: Montag, 2. März 2009 14:39
> >>>>>An: Mapbender User List
> >>>>>Betreff: Re: [Mapbender-users] MB 2.5: Problems with legends
> >>>>>in pdf-print using mapserver's agg
> >>>>>
> >>>>>
> >>>>>Hello Mr. Schönhammer,
> >>>>>
> >>>>>are you using imagemode "image/png;24bit mode" for this service in
> >>>>>Mapbender? Then this could be the problem, because
> >
> >printPDF sets the
> >
> >>>>>imageformat for the maps and the legend icons to image/png.
> >>>
> >>>Then maybe
> >>>
> >>>>>your customized outputformat isn't used anymore... In the GUI the
> >>>>>imageformats are used as defined in gui wms settings.
> >>>>>
> >>>>>Chees, Michael Schulz
> >>>>>
> >>>>>2009/3/2 Schönhammer, Herbert <Schoenhammer.Herbert at regensburg.de>:
> >>>>>> Hi list,
> >>>>>>
> >>>>>> I have a new strange problem with pdf-print in Mapbender 2.5.
> >>>>>>
> >>>>>> Lines should be rendered with rounded linejoins. So I'm
> >>>>>
> >>>>>using mapserver agg
> >>>>>
> >>>>>> - renderer with an outputformat defined like:
> >>>>>>
> >>>>>> OUTPUTFORMAT
> >>>>>>    ##NAME png
> >>>>>>    ##DRIVER "GD/PNG"
> >>>>>>    MIMETYPE "image/png"
> >>>>>>    NAME 'AGGA'
> >>>>>>    DRIVER AGG/PNG
> >>>>>>    EXTENSION PNG
> >>>>>>    IMAGEMODE RGBA
> >>>>>>    TRANSPARENT ON
> >>>>>> END
> >>>>>>
> >>>>>>
> >>>>>> Things are done well
> >>>>>>
> >>>>>> in the map
> >>>>>> and in the legend of the gui.
> >>>>>>
> >>>>>>
> >>>>>> Things are going wrong in printing the legend in pdf-print.
> >>>>>> The legend picture is drawn with a black background. So the
> >>>>>
> >>>>>text of the
> >>>>>
> >>>>>> legend is not readable anymore. (Please see examples in
> >>>
> >>>the appendix)
> >>>
> >>>>>> Until now I used gd-driver. With gd-driver all things are
> >>>>>
> >>>>>going right.
> >>>>>
> >>>>>> The background of the legend picture is defined transparent.
> >>>>>
> >>>>>So the same
> >>>>>
> >>>>>> legend picture my be used in different guis (with different
> >>>>>> background-color) and in pdf-Print.
> >>>>>>
> >>>>>> LEGEND
> >>>>>>   STATUS ON
> >>>>>>   KEYSIZE 298 398
> >>>>>>   KEYSPACING 10 1
> >>>>>>   LABEL
> >>>>>>     TYPE TRUETYPE
> >>>>>>     FONT "verdana"
> >>>>>>     SIZE 8
> >>>>>>     POSITION lc
> >>>>>>   END # END LABEL
> >>>>>>   TRANSPARENT ON
> >>>>>>   IMAGECOLOR 255 255 255
> >>>>>> END   #LEGEND
> >>>>>>
> >>>>>> I'm not able to detect any difference in the pictures
> >>>>>
> >>>>>produced by gd or by
> >>>>>
> >>>>>> agg. In all tools (even photo-editors) the background is
> >
> >displayed
> >
> >>>>>> transparent. Only in mapbender pdf-print the background is
> >>>>>
> >>>>>displayed in
> >>>>>
> >>>>>> black. So I think, the solution could be in pdf-print ?
> >>>>>>
> >>>>>> Has anybody observed similar problems ?
> >>>>>> Has anybody a tipp ?
> >>>>>>
> >>>>>> Thanks a lot
> >>>>>> Herbert Schönhammer
> >>>>>>
> >>>>>> _______________________________________________
> >>>>>> Mapbender_users mailing list
> >>>>>> Mapbender_users at lists.osgeo.org
> >>>>>> http://lists.osgeo.org/mailman/listinfo/mapbender_users
> >>>>>
> >>>>>--
> >>>>>-----------------------------------------------------------
> >>>>>Michael Schulz
> >>>>>mschulz at webgis.de
> >>>>>
> >>>>>in medias res
> >>>>>Gesellschaft für Informationstechnologie mbH
> >>>>>
> >>>>>In den Weihermatten 66
> >>>>>79108 Freiburg
> >>>>>
> >>>>>Tel  +49 (0)761 556959-5
> >>>>>Fax +49 (0)761 556959-6
> >>>>>
> >>>>>http://www.webgis.de / http://www.zopecms.de
> >>>>>-----------------------------------------------------------
> >>>>>Geschäftsführer: Stefan Giese, Dr. Christof Lindenbeck
> >>>>>Eingetragen im Handelsregister HRB 5930 beim Amtsgericht Freiburg
> >>>>>_______________________________________________
> >>>>>Mapbender_users mailing list
> >>>>>Mapbender_users at lists.osgeo.org
> >>>>>http://lists.osgeo.org/mailman/listinfo/mapbender_users
> >>>>
> >>>> _______________________________________________
> >>>> Mapbender_users mailing list
> >>>> Mapbender_users at lists.osgeo.org
> >>>> http://lists.osgeo.org/mailman/listinfo/mapbender_users
> >>>
> >>>--
> >>>-----------------------------------------------------------
> >>>Michael Schulz
> >>>mschulz at webgis.de
> >>>
> >>>in medias res
> >>>Gesellschaft für Informationstechnologie mbH
> >>>
> >>>In den Weihermatten 66
> >>>79108 Freiburg
> >>>
> >>>Tel  +49 (0)761 556959-5
> >>>Fax +49 (0)761 556959-6
> >>>
> >>>http://www.webgis.de / http://www.zopecms.de
> >>>-----------------------------------------------------------
> >>>Geschäftsführer: Stefan Giese, Dr. Christof Lindenbeck
> >>>Eingetragen im Handelsregister HRB 5930 beim Amtsgericht Freiburg
> >>>_______________________________________________
> >>>Mapbender_users mailing list
> >>>Mapbender_users at lists.osgeo.org
> >>>http://lists.osgeo.org/mailman/listinfo/mapbender_users
> >>
> >> _______________________________________________
> >> Mapbender_users mailing list
> >> Mapbender_users at lists.osgeo.org
> >> http://lists.osgeo.org/mailman/listinfo/mapbender_users
> >
> >--
> >-----------------------------------------------------------
> >Michael Schulz
> >mschulz at webgis.de
> >
> >in medias res
> >Gesellschaft für Informationstechnologie mbH
> >
> >In den Weihermatten 66
> >79108 Freiburg
> >
> >Tel  +49 (0)761 556959-5
> >Fax +49 (0)761 556959-6
> >
> >http://www.webgis.de / http://www.zopecms.de
> >-----------------------------------------------------------
> >Geschäftsführer: Stefan Giese, Dr. Christof Lindenbeck
> >Eingetragen im Handelsregister HRB 5930 beim Amtsgericht Freiburg
> >_______________________________________________
> >Mapbender_users mailing list
> >Mapbender_users at lists.osgeo.org
> >http://lists.osgeo.org/mailman/listinfo/mapbender_users
>
> _______________________________________________
> Mapbender_users mailing list
> Mapbender_users at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/mapbender_users



-- 
Im Auftrag
--
Armin Retterath

Kompetenz- und Geschäftsstelle Geodateninfrastruktur Rheinland-Pfalz
beim
Landesamt für Vermessung und Geobasisinformation Rheinland-Pfalz

Ferdinand-Sauerbruch-Straße 15
56073 Koblenz
Telefon 0261/492-466
Telefax 0261/492-492
armin.retterath at lvermgeo.rlp.de
http://www.geoportal.rlp.de

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