[udig-devel] Re: uDig WMS format choice

[Cole Markham <markhamc@xxxxxxxxx>]

Are you using uDig 1.0.1? If so you should already have the ability to
set the order of preferred formats. I assume this feature will be
included in all future versions.

 Go to Window->Preferences and choose Basic WMS Renderer
(should be the first option). See the screen shot attached. You have to
uncheck the box and then you can change the order. The renderer will
iterate over the list in descending order until it finds one that
matches the GetCapabilities document.

I know the support for GeoTiff is not all that great in uDig right now,
but that is why I am using MapServer in the first place. If you set
uDig to accept image/tiff files, then MapServer will take care of the
geoReferencing and uDig should be able to see the file just fine. You
want to make sure that your MapServer config file is set to server
"EPSG:4326" because the client-side reprojection takes a long time and
is not very accurate. 

This is the setup I am using and it works great. If you need some more help setting it up, let me know.

Cole

On 9/1/05, Frederic Claudel <fclaudel@xxxxxxxxxx> wrote:

thanks Cole, it works fine now with uDig. I thoight I had tried it before... maybe with the builtin GDLIB instead of GDAL.
The actual goal is to use JPEG/compressed GeoTiff instead of PNG for end-users (we have a slow bandwidth)
will wait impatiently for the format selector :)
cheers,
Frederic

Frederic Claudel - researcher Earth Observation - Satellite Application Centre, CSIR
tel: 012 841 4478 - fax: 012 841 4720
e-mail: fclaudel@xxxxxxxxxx - web: http://www.sac.co.za/

>>> Cole Markham <markhamc@xxxxxxxxx> 01/09/2005 16:27 >>>
Hi Frederic,

I also use UMN MapServer, and it is possible to force png images to be
24bit. Just add the following to your MapSever config file and it should
override the default 8-bit.

OUTPUTFORMAT
NAME png
DRIVER "GDAL/PNG"
MIMETYPE "image/png"
IMAGEMODE RGB
EXTENSION "png"
END

Cole Markham

On 9/1/05, Frederic Claudel < fclaudel@xxxxxxxxxx> wrote:
>
> that is a great feature ! I was going to request it in the mailing list.
>
> When using UMN MapServer as a WMS source, this is a must, since mapserver
> doesn't allow to choose the format listed in the WMS GetCapabilities.
> The outcome is that when serving 24bit images, one cannot disable 8bit
> formats, and the maps end up beeing displayed as 8 bit in uDIG since
> image/png is preferred.
>
> Richard, are there any plans in introducing the feature in the next
> releases?
> thanks,
>
> Frederic Claudel
> CSIR, South Africa
>
>
>
> Frederic Claudel - researcher Earth Observation - Satellite Application
> Centre, CSIR
> tel: 012 841 4478 - fax: 012 841 4720
> e-mail: fclaudel@xxxxxxxxxx - web: http://www.sac.co.za/
>
>
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views of the CSIR.

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Attachment: wmsPreferences.PNG
Description: PNG image