[mapserver-users] Smaller polygon sizes when usingmapserver 5.4.1compare to 5.2.0

[Thomas Bonfort]

the previous versions of mapserver (incorrectly I think) used the
value of the label buffer to expand the background billboard. You'd
get nice results whith a 1 or 2 px buffer like in your case, but
unusable ones when you added larger buffers.

I hope we can work around this for 5.6 with the possible label style rewrite.

regards,

thomas

www.camptocamp.com
+33 4 79 26 57 97



On Tue, Jul 14, 2009 at 03:01, Steve Lime<Steve.Lime at dnr.state.mn.us> wrote:
> Wonder if it's the same issue as with the polygon size you noted. Even though the shield
> is a rect it's rendered as a polygon. Thomas, should polygons be drawn with an outline
> same as the fill color if no outline color is specifiied?
>
> Steve
>
>>>> "Nikolai Nikolov" <nnikolov at gypsii.com> 07/09/09 2:43 AM >>>
> Hi Steve and everyone,
>
> The images below are from Mapserver 5.2.0 (left) and 5.4.1 (right) of the
> same map using AGG. Please note the difference in the size of the road
> shields (green shields).
>
> The following are images from the same servers (Mapserver 5.2.0 (left) and
> 5.4.1 (right)) of the same map (different zoom) using GD.  Please note that
> the two maps are practically the same.
>
> The complete map-file used for the first example is attached to this e-mail.
> The parts of it specific to the issue are like that:
>
>
>
>    OUTPUTFORMAT
>
>        NAME AGG_PNG
>
>        DRIVER AGG/PNG
>
>        MIMETYPE  "image/png"
>
>        IMAGEMODE RGB
>
>        EXTENSION  "png"
>
>        #FORMATOPTION "QUANTIZE_FORCE=TRUE"
>
>        #FORMATOPTION "QUANTIZE_COLORS=256"
>
>        FORMATOPTION "PALETTE_FORCE=TRUE"
>
>        FORMATOPTION "PALETTE=/var/www/html/maps_gypsii/palette.txt"
>
>        FORMATOPTION "INTERLACE=OFF"
>
>    END
>
>
>
> and
>
>        CLASS
>
>            EXPRESSION /^E/
>
>            LABEL
>
>                PRIORITY 4
>
>                PARTIALS false
>
>                MINFEATURESIZE 10
>
>                MINDISTANCE 300
>
>                COLOR 255 255 255
>
>                BACKGROUNDCOLOR 128 208 100
>
>                BACKGROUNDSHADOWCOLOR 81 145 58
>
>                ANGLE 0
>
>                BUFFER 2
>
>                FONT arial-bold
>
>                TYPE truetype
>
>                SIZE 7
>
>            END
>
>        END
>
>
>
> The difference for the second examples is in the output format used:
>
>
>
>    OUTPUTFORMAT
>
>        NAME PNG
>
>        DRIVER GD/PNG
>
>        MIMETYPE  "image/png"
>
>        IMAGEMODE RGB
>
>        EXTENSION  "png"
>
>        #FORMATOPTION "QUANTIZE_FORCE=TRUE"
>
>        #FORMATOPTION "QUANTIZE_COLORS=256"
>
>        FORMATOPTION "PALETTE_FORCE=TRUE"
>
>        FORMATOPTION "PALETTE=/var/www/html/maps_gypsii/palette.txt"
>
>        FORMATOPTION "INTERLACE=OFF"
>
>    END
>
>
>
> Many thanks,
>
> Nick
>
>
>
>
>
> -----Original Message-----
> From: Steve Lime [mailto:Steve.Lime at dnr.state.mn.us]
> Sent: 08 July 2009 15:29
> To: Nikolai Nikolov; mapserver-users at lists.osgeo.org
> Subject: Re: [mapserver-users] Smaller polygon sizes when usingmapserver
> 5.4.1compare to 5.2.0
>
>
>
> Perhaps you could post image samples and a mapfile?
>
>
>
> Steve
>
>
>
>>>> On 7/8/2009 at 3:05 AM, in message
>
> <65D1C555BE9443A180F3B1697EF7E69F at BenefonUK.local>, "Nikolai Nikolov"
>
> <nnikolov at gypsii.com> wrote:
>
>> Hi everyone,
>
>>
>
>>
>
>>
>
>> I've just upgraded one of my test servers from 5.2.0 to 5.4.1.  I have an
>
>> issue there and I wonder whether anybody have noticed it.  My map
> polygones
>
>> seems to be fractionaly smaller (compare to those drawned by 5.2.0).
>
>>
>
>>
>
>>
>
>> I am using the same maps, map files, PHP scripts, etc.  The plygons which
>
>> belong to the same layer, do not quite well "fit" with each other - their
>
>> borders match perfectly before the upgarde to 5.4.1.
>
>>
>
>>
>
>>
>
>> Also, I use BACKGROUNDCOLOR in my map file to create shield like square
>
>> behind a label.  Those squares are now significantly smaller too.
>
>>
>
>>
>
>>
>
>> I wander what causes this effect and what I should do to achieve the same
>
>> image as with 5.2.0?
>
>>
>
>>
>
>>
>
>> Thanks,
>
>>
>
>> Nick
>
>>
>
>>
>
>>
>
>>
>
>
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