[mapserver-users] testing mapserver largefiles rendering improvements

[Guillaume Sueur]

- Check for every POSTGIS layer that the table has a GIST index
- Check that TEMPLATE is set whenever TOLERANCE is set (or however one 
can find that a specific layer is intended to be queryable...)
- Check that DUMP TRUE if wfs metadata is found

I'm not convinced on the jpg,png -> tif conversion. Some data must be 
used in the user's desired format. Maybe just sending advices and 
command-lines would be enough.


Paul Ramsey a écrit :
> mapperf -m foo.map -x
> 
> -m is map file
> -x executes fixes
> default mode just reports issues
> 
> Things it would do/report:
> 
> - All shape files have up-to-date qix
> - Replace "init:epsg" entries in PROJECTION blocks with their proj4
> literals and fill in the appropriate ows_ metadata to make up for the
> change
> - Convert .jpg, .png to .tif
> - Build overviews on .tif
> - Internally tile .tif
> - ...
> 
> 
> 
> On Thu, May 15, 2008 at 8:34 AM, Burgholzer,Robert
> <rwburgholzer at deq.virginia.gov> wrote:
>> If there is zero overhead to check for the existence of a ".qix" file
>> and determine if it is up to date, I think this is a good default (no
>> magic required).
>>
>> As for making it work out of the box for the typical user who is not
>> interested in the nitty-gritty: Perhaps the "quick install" documents
>> could say "Step X: Run the shptree on all your shape files".
>>
>>
>>
>> Robert W. Burgholzer
>> Surface Water Modeler
>> Office of Water Supply and Planning
>> Virginia Department of Environmental Quality
>> rwburgholzer at deq.virginia.gov
>> 804-698-4405
>> Open Source Modeling Tools:
>> http://sourceforge.net/projects/npsource/
>>
>> -----Original Message-----
>> From: mapserver-users-bounces at lists.osgeo.org
>> [mailto:mapserver-users-bounces at lists.osgeo.org] On Behalf Of Guillaume
>> Sueur
>> Sent: Thursday, May 15, 2008 11:24 AM
>> To: Daniel Morissette
>> Cc: Mapserver-users
>> Subject: Re: [mapserver-users] testing mapserver largefiles rendering
>> improvements
>>
>> I'm not sure that "standard" user uses often msDebug().
>> My point was just to say that if somebody tries and tests MapServer,
>> he/she will only read the basic documentation to have a working mapfile
>> on a dataset. Once it works, no more reading will be done. And if a
>> large shape is tested, the user can then be disappointed.
>> The thing is that it's more than a specific tuning stuff, maybe more
>> than a GIST index on a postGIS database.
>> I think it should be mentionned at least in the Vector Data Access /
>> shapefiles doc of the website. In addition to "Shapefiles are made up of
>>
>> a minimum of three similarly named files, with different suffixes..",
>> one could write : "having a .qix file made with shptree improves
>> considerabily the performances, mostly on large shapefiles"
>>
>> Beside this, I like the idea of building a MapFile Optimizer too...
>> Daniel, what do you have in mind exactly ?
>>
>>
>> --
>> Guillaume
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> 

-- 
Guillaume SUEUR
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