[Qgis-user] File-based Mastermap

[Saber Razmjooei]

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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