[mapserver-users] Re: mapserver-users Digest, Vol 40, Issue 29

[Ben Madin]

Thanks Jeff,

Truth be told, I haven't set up a map file with a shapefile for about three years (all our data is in PostGIS now), so I haven't looked at the docs on that for a while.

Based on the feedback here, could I maybe suggest that the last part of the shptree page be reworded to something like

<<<

Mapfile Notes

The qix will be used when it is available and may provide significant gains in rendering speed. 

ESRI index files (.sbn / .shx) are not used by MapServer.

Note Prior to Mapserver 5.2, in order for MapServer to use the.qix extension you MUST NOT specify the extension, for example:

LAYER
  ...
  DATA "us_states"    #MapServer will search for us_states.qix and will use it
  ...
END

LAYER
  ...
  DATA "us_states.shp"    #MapServer will search for us_states.shp.qix and won't find it
  ...
END
Shapefiles are native to MapServer, and therefore do not require the .shp extension in the DATA path of the LAYER.


>>>

cheers

Ben


 
On 13/05/2011, at 9:30 AM, mapserver-users-request at lists.osgeo.org wrote:

> From: Jeff McKenna <jmckenna at gatewaygeomatics.com>
> Date: 12 May 2011 8:58:00 PM AWST
> To: mapserver-users at lists.osgeo.org
> Subject: Re: [mapserver-users] Layer rendering performance problem
> 
> 
> On 11-05-11 9:59 PM, Ben Madin wrote:
>> I'm not sure whether it is still the case, but it used also to be that
>> if you wanted to use the index, you need to name the shapefile without
>> the .shp extension. If you used the .shp extension it wouldn't use the
>> .qix index.
>> 
>> So maybe this is a question - Is that still the case?
> 
> Hi Ben,
> 
> This is documented at: http://www.mapserver.org/utilities/shptree.html#mapfile-notes
> 
> "Note: As of MapServer 5.2 the qix will be used even when the .shp extension is specified"
> 
> PS. this is why I always push the documentation team/developers to record the version number the change applies to, directly in the document.
> 
> -jeff
> 
> -- 
> Jeff McKenna
> MapServer Consulting and Training Services
> http://www.gatewaygeomatics.com/
> 

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