[mapserver-users] Mapcache - optimum format for orthophotos?

[Schylberg Lars]

There is even more details how to optimize the data if You read the blog entry from Paul R.

http://blog.cleverelephant.ca/2015/02/geotiff-compression-for-dummies.html

/Lars S.

From: mapserver-users [mailto:mapserver-users-bounces at lists.osgeo.org] On Behalf Of Travis Kirstine
Sent: den 14 oktober 2015 14:24
Cc: mapserver-users at lists.osgeo.org
Subject: Re: [mapserver-users] Mapcache - optimum format for orthophotos?

This is worth a read as well for info on how to optimize your images for mapserver.

http://mapserver.org/uk/optimization/raster.html




On Wed, Oct 14, 2015 at 6:56 AM, thomas bonfort <thomas.bonfort at gmail.com<mailto:thomas.bonfort at gmail.com>> wrote:
it depends on many factors... large metatiles are more efficient as
they usually impose less load on the WMS server, but can cause a
significant delay for the end user if you are populating your cache on
demand.
If you're preseeding everything, use large power of 2 metatiles (4x4,
8x8,...). If you haven't pre-seeded, use smaller ones, how small
depends on the experience you want to provide your user if the tile
isn't already in the cache (2x2, 4x4).
If you're rendering raster data only, you don't need a metabuffer.

On 13 October 2015 at 22:15, Robert Sanson
<Robert.Sanson at asurequality.com<mailto:Robert.Sanson at asurequality.com>> wrote:
> Thanks Thomas. I do not have labels, so would you still recommend metatiles for performance reasons? Would you suggest 3 3 or 5 5 for a Mapserver WMS backend?
>
> <metatile>3 3</metatile>
>
> Robert
>
> -----Original Message-----
> From: thomas bonfort [mailto:thomas.bonfort at gmail.com<mailto:thomas.bonfort at gmail.com>]
> Sent: Tuesday, 13 October 2015 8:07 p.m.
> To: Robert Sanson <Robert.Sanson at asurequality.com<mailto:Robert.Sanson at asurequality.com>>
> Cc: mapserver-users at lists.osgeo.org<mailto:mapserver-users at lists.osgeo.org>
> Subject: Re: [mapserver-users] Mapcache - optimum format for orthophotos?
>
> in the vast majority of the cases, you'll want to have mapcache use metatiles, be serving PNGs from your WMS server (<format>image/png</format> in your mapcache <source>), and storing your tiles as JPG (<format>JPG</format> in your <tileset>). If you need to preserve transparency on your orthophoto edges, you can choose to store the tiles as a"mixed" format instead of pure JPG.
>
> --
> thomas
>
> On 12 October 2015 at 22:13, Robert Sanson <Robert.Sanson at asurequality.com<mailto:Robert.Sanson at asurequality.com>> wrote:
>> Hi
>>
>> What is the recommended format for serving and storing true colour orthophotos via Mapcache if we wish to preserve maximum detail? The source data are uncompressed GeoTiffs served as WMS by Mapserver.
>>
>> Many thanks,
>>
>> Robert Sanson
>> _______________________________________________
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>> mapserver-users at lists.osgeo.org<mailto:mapserver-users at lists.osgeo.org>
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