VS: [UMN_MAPSERVER-USERS] VS: [UMN_MAPSERVER-USERS] PHP Mapscript - Jpeg2000

Frank Warmerdam warmerdam at POBOX.COM
Thu Dec 15 07:18:45 PST 2005


On 12/15/05, Rahkonen Jukka <Jukka.Rahkonen at mmmtike.fi> wrote:
> Frank,
>
> OK, I understand that using gdaladdo will possibly never be especially
> efficient tool to create overviews for my jpeg2000 coverage because I am
> going to exceed the limits of .vrt mechanism. And gdaladdo do not
> understand MapServer tileindexes at all. If I would like to create
> overviews anyway (in reasonable time), so do you think I could start
> with tileindex system and MapServer? Just ask it to send an image of
> suitable resolution covering the whole area, store the file and use that
> as overview image as a separate layer? If I then play with MIN and MAX
> scales of the layers to switch at some moment from overview image to
> jpeg2000 tileindex I might get a good result.


Jukka,

Yes, that is exactly what I would do.

Best regards,
--
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I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
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and watch the world go round - Rush    | Geospatial Programmer for Rent



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