[mapguide-users] raster ECW transparency

Zac Spitzer zac.spitzer at gmail.com
Mon Feb 4 16:21:10 PST 2013


if you need some GDAL improvements, you could always engage Trevor to make
them


On Tue, Feb 5, 2013 at 9:57 AM, Johan Van de Wauw <johan.vandewauw at gmail.com
> wrote:

> I've not used the GDAL provider myself, but using AIMS raster driver the
> only way I found to make ecw transparent was adding a alpha layer. I did
> this using the gdal command line utility "nearblack" with the setalpha
> option:
> nearblack -setalpha -o out.tif in.ecw
> And afterwards converting the output to ecw again (exporting to ecw was
> not supported by nearblack).
>
> Johan
>
>
>
> On Mon, Feb 4, 2013 at 5:27 PM, StuartSteel <stuart.steel at atkinsglobal.com
> > wrote:
>
>> Bump.
>>
>> I cannot believe that Duck and myself are the only two people who require
>> nodata transparency using the GDAL raster provider?
>>
>> Can anyone shed some light on this, please?
>>
>>
>>
>> --
>> View this message in context:
>> http://osgeo-org.1560.n6.nabble.com/raster-ECW-transparency-tp5029485p5032030.html
>> Sent from the MapGuide Users mailing list archive at Nabble.com.
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>>
>
>
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>


-- 
Zac Spitzer
Solution Architect / Director
Ennoble Consultancy Australia
+61 405 847 168
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