[Qgis-user] File-based Mastermap

[jonathanmoules at warwickshire.gov.uk]

Thanks for the flurry of responses folks. There's an interesting variety 
there.
SpatiaLite would probably be the optimal solution; FME does have a 
reader/writer for it "SQLite Spatial(FDO)" plus "SQLite Non-spatial", 
though I'm not clear if this is the same thing as "SpatiaLite". However, 
it's not a format I'm familiar with (definitely going to have to look into 
it though), and because I need simplicity first and foremost, I've used 
Jason's "create spatial index" which worked great.

Thanks to all respondents,
Jonathan


From:   "Saber Razmjooei" <razmjooeis at faunalia.co.uk>
To:     jonathanmoules at warwickshire.gov.uk
Cc:     qgis-user at lists.osgeo.org
Date:   28/09/2011 10:46
Subject:        Re: [Qgis-user] File-based Mastermap



You can use PostGIS. Just need to install it locally and import all your
data to localhost.

You can use Virtual Raster for 10k, 25k and 50k OS. And use zoom
dependency to turn the layers on and off on different zooms.

In QGIS, you can convert to all sorts of vector format supported by
OGR/GDAL as well.

Cheers
Saber



> 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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This transmission is intended for the named addressee(s) only and may contain sensitive or protectively marked material up to RESTRICTED and should be handled accordingly. Unless you are the named addressee (or authorised to receive it for the addressee) you may not copy or use it, or disclose it to anyone else. If you have received this transmission in error please notify the sender immediately. All email traffic sent to or from us,  including without limitation all GCSX traffic, may be subject to recording and/or monitoring in accordance with relevant legislation.
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