<div dir="ltr">This is worth a read as well for info on how to optimize your images for mapserver. <br><div><br><a href="http://mapserver.org/uk/optimization/raster.html">http://mapserver.org/uk/optimization/raster.html</a><br><br><br><br></div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Oct 14, 2015 at 6:56 AM, thomas bonfort <span dir="ltr"><<a href="mailto:thomas.bonfort@gmail.com" target="_blank">thomas.bonfort@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">it depends on many factors... large metatiles are more efficient as<br>
they usually impose less load on the WMS server, but can cause a<br>
significant delay for the end user if you are populating your cache on<br>
demand.<br>
If you're preseeding everything, use large power of 2 metatiles (4x4,<br>
8x8,...). If you haven't pre-seeded, use smaller ones, how small<br>
depends on the experience you want to provide your user if the tile<br>
isn't already in the cache (2x2, 4x4).<br>
If you're rendering raster data only, you don't need a metabuffer.<br>
<br>
On 13 October 2015 at 22:15, Robert Sanson<br>
<div class="HOEnZb"><div class="h5"><<a href="mailto:Robert.Sanson@asurequality.com">Robert.Sanson@asurequality.com</a>> wrote:<br>
> 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?<br>
><br>
> <metatile>3 3</metatile><br>
><br>
> Robert<br>
><br>
> -----Original Message-----<br>
> From: thomas bonfort [mailto:<a href="mailto:thomas.bonfort@gmail.com">thomas.bonfort@gmail.com</a>]<br>
> Sent: Tuesday, 13 October 2015 8:07 p.m.<br>
> To: Robert Sanson <<a href="mailto:Robert.Sanson@asurequality.com">Robert.Sanson@asurequality.com</a>><br>
> Cc: <a href="mailto:mapserver-users@lists.osgeo.org">mapserver-users@lists.osgeo.org</a><br>
> Subject: Re: [mapserver-users] Mapcache - optimum format for orthophotos?<br>
><br>
> 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.<br>
><br>
> --<br>
> thomas<br>
><br>
> On 12 October 2015 at 22:13, Robert Sanson <<a href="mailto:Robert.Sanson@asurequality.com">Robert.Sanson@asurequality.com</a>> wrote:<br>
>> Hi<br>
>><br>
>> 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.<br>
>><br>
>> Many thanks,<br>
>><br>
>> Robert Sanson<br>
>> _______________________________________________<br>
>> mapserver-users mailing list<br>
>> <a href="mailto:mapserver-users@lists.osgeo.org">mapserver-users@lists.osgeo.org</a><br>
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