[Qgis-user] File-based Mastermap

Wed Sep 28 02:47:50 PDT 2011

Hi James,
        Oooh, yep that seems to do it.
Thanks!
Jonathan 

From:   "James Stott" <James.Stott at npaconsult.co.uk>
To:     <jonathanmoules at warwickshire.gov.uk>, <qgis-user at lists.osgeo.org>
Date:   28/09/2011 10:42
Subject:        RE: [Qgis-user] File-based Mastermap

You can build spatial indexes for shapefiles in QGIS.

Open the properties dialog for the layer, then select the general tab. 
There is a button for Create Spatial Index.

Not sure what version it was added.

James Stott BSc (Hons) MSc | Senior Professional
Nicholas Pearson Associates | 30 Brock Street | Bath | BA1 2LN
T: 01225 445548 | M: -
www.npaconsult.co.uk 

From: qgis-user-bounces at lists.osgeo.org [
mailto:qgis-user-bounces at lists.osgeo.org] On Behalf Of 
jonathanmoules at warwickshire.gov.uk
Sent: 28 September 2011 10:39
To: qgis-user at lists.osgeo.org
Subject: [Qgis-user] File-based Mastermap

I need to deploy four stand-alone laptops with a basic GIS (data viewing 
only) and have chosen QGIS for this. The data held is for the entire 
county of Warwickshire, and one of the datasets I need to put on there is 
MasterMap. Specifically the datasets I'm using are:

Topographic line: 3.7 million features
Topographic Area: 1.3 million features
Cartographic Text: 250,000 features

Given the dataset size, obviously the first choice is a database, but as 
these are stand-alone laptops that must have the simplest setup possible 
(they're going to be used out in the field away from tech-support) I've 
ruled that option out.

I tried shapefile's but it turns out that spatial indexes in Shapefiles 
are an ESRI-only thing, so the dataset takes literally minutes to load per 
pan.

Can anyone can suggest a format I could use that would allow fluid viewing 
of this data in QGIS? I have access to FME, so can convert to pretty much 
any format.

Thanks,
Jonathan

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