[Geomoose-users] problem displaying PIXMAP images

Robert R. Raiz raizrobert at gmail.com
Wed Jul 31 14:01:21 PDT 2013


Hello Eli,

I already tried both shp2img and legend commands in mapserver but still,
the result is not good. I am familiar with all the mapserver documentation
as I am using it for many years now. Trying to find a link between all
these and I just realized that maybe libpng 1.6.2 has something to do with
it. I will troubleshoot per advice and come back with the results.


On Wed, Jul 31, 2013 at 6:38 PM, Eli Adam <eadam at co.lincoln.or.us> wrote:

>
>
>
> On Tue, Jul 30, 2013 at 11:07 PM, Robert R. Raiz <raizrobert at gmail.com>wrote:
>
>> Hello all,
>>
>> This is somehow related to a previous post I made regarding an *"Image
>> handling error. Unsupported output format (image/png;bits=8)".
>> *
>> I went to the demo part in GeoMoose and added to the original, untouched
>> demo folders another layer (point shapefile - containing a few points), an
>> icon (.png) in the symbol folder and all the other data connected to this
>> layer (declaring it in the symbol.sym, mapbook.xml and so on) in order to
>> display it.
>>
>> The thing is, whatever I do with the output format (state only one, none,
>> or more, combinations, specifying option, changing imagetypes and so on)
>> the symbol (.png file) does not render well - it gets fuzzy, pixelated.
>> Like it does not preserve its quality or something like this.
>>
>> The icon has a good quality, clear image, smooth edges, even at a small
>> size (in my normal viewer). Displayed in GeoMoose it looses the quality.
>>
>
> Taking GeoMoose out of the equation is one way to simplify this
> troubleshooting.
>
>
>>
>> Can I ask some of you to try and replicate this? just add 2,3 points
>> somewhere in your project and an icon to be displayed for those points. I
>> would really like to see where the issue comes from as I am stuck at this
>> part of my project for close to two weeks now and I cannot find a fix to
>> this. Not sure what to modify, if its a mapserver thing or something else.
>>
>
> You can try using the shp2img utility to test just your map file and see
> the quality of output.  There is a pointer to the Test your Mapfile section
> of MapServer docs,
> http://mapserver.org/optimization/debugging.html#step-5-test-your-mapfile,
> from the GeoMoose FAQ,
> http://www.geomoose.org/docs/faq.html?highlight=shp2img#why-am-i-getting-these-pink-tiles-when-i-look-at-geomoose.
> There are some additional details on shp2img on the GeoMoose wiki,
> http://www.geomoose.org/wiki/index.php/Troubleshooting_map_files_with_shp2img
>
> MapServer has additional details about symbols.  Here is a specific note
> about the use of PNGs,
> http://www.mapserver.org/mapfile/symbology/construction.html#symbols-of-type-pixmap
>
> Using shp2img you can evaluate the output from MapServer.  If you are not
> getting quality output from MapServer, then you will not get quality output
> in GeoMoose.  If you are getting quality output from MapServer then you can
> remove it from the equation and troubleshoot GeoMoose.  The first step
> would be to compare the specific request made in GeoMoose and see if the
> parameters are the same as what you were using in MapServer.  If so, then
> you should be getting similar quality output.  If not, then you can be
> focused on trying to configure GeoMoose to be using the same parameters as
> you were using in MapServer.
>
> Best Regards, Eli
>
>
>
>>
>> I appreciate any help I can get,
>>
>> --
>> *Raiz Roland Robert*
>>
>>
>>
>> _______________________________________________
>> Geomoose-users mailing list
>> Geomoose-users at lists.osgeo.org
>> http://lists.osgeo.org/mailman/listinfo/geomoose-users
>>
>>
>


-- 
*Raiz Roland Robert*
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