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

Tue Mar 3 07:21:33 EST 2009

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
>>>
>> _______________________________________________
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>>
>
>
>
>--
>-----------------------------------------------------------
>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
>