[Gdal-dev] GDAL, JPIP and OpenEV

[Frank Warmerdam]

On 1/11/06, Norman Barker <nbarker at rsinc.com> wrote:
> Is is possible that you could explain how to use a URL such as jpip://149.171.92.175/meteora.jp2 (which I grabbed from the Kakadu website) with GDAL and OpenEV please?

Norman,

I think you just use it directly.  I just tried it with the FWTools
build and get:

N:\pkg\dstile-0.2>gdalinfo jpip://149.171.92.175/meteora.jp2
ERROR 4: JPIP Protocol not supported by GDAL with Kakadu 3.4 or on Unix.
GDALOpen failed - 4
JPIP Protocol not supported by GDAL with Kakadu 3.4 or on Unix.

But if you build with a Kakadu 4.x it ought to work, at
least to some degree.

>
> Since OpenEV implements a display mechanism of rendering the data with a time phase, could it be easily adapted to progressive display?

I'm not sure what you mean about rendering with
a time phase.  Do you just mean support improving
display over time as more data is loaded?

It cannot be easily adapted to support progressive display.
But if you really wanted to do, the trick would be to get it
to load reduced resolution data in a first pass for some datasets.

Best regards,
--
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I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
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