1,225 reputation
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location United Kingdom
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visits member for 1 year, 11 months
seen 1 hour ago

I currently work as a Senior GIS Consultant for Ordnance Survey Great Britain's National Mapping Athority. I support our customers across all sectors highlighting the benefits of GI data and GIS.

My specialities are web services, open source software and newer technologies and how they apply to GIS.


Feb
3
comment Import CSV file into Postgis DB with Location-field formatting?
can you edit your post and put a sample of your csv up, say first 5 rows
Jan
28
comment Batch merge large numbers of.asc grid files
Did you want a .asc file as the output or a geotiff or a hillshade?
Dec
3
comment Map background and style
yes you will need an SLD for your points, lines and polygons.
Dec
3
comment Map background and style
In order to create a map as detailed as Google Maps you need all the points, lines and polygons that make up a map. In your image you are only showing points. If you have this data then you need to create an SLD for each geometry type and style individual features, for example style rivers blue while roads are red. I would recommend looking at the SLD Cookbook and maybe this workshop workshops.boundlessgeo.com/geoserver-intro/styling/…
Nov
26
comment Ordnance Survey 1 km Grid
@Vesanto totally understand but will need to check internally how Ordnance Survey can best do this for other users rather than keep it where it is.
Nov
26
comment Loading / georeferencing OS rasters in QGIS
Glad I could help. Can you accept the answer so that other people can find it useful in the future
Nov
21
comment postgis: difference with && operator and st_intersects
When I have tested && and ST_Intersects before, the && version just compares bounding boxes. So it is very quick but in a way not that accurate. Where as the ST_Intersect does a bounding box to reduce the number of features to check against, and then does a full geometry check feature against feature.
Nov
18
comment Using OS Mastermap SLDs in QGIS
Hi Chris - I often start small and build up. For example, for cartographic text drop the OSMM style and see if the points show on the map. Then use the label and use the textstring, does the label show? Then use the data derived options and shift the position of text and the orientation using the new columns you have added. see what I mean? Here is a link to one I have used successfully - dropbox.com/s/udon2b1dv40l4vy/…
Nov
16
comment Using OS Mastermap SLDs in QGIS
you might be intersted in looking here for styles - github.com/QGIS-UK/Styles.
Nov
14
comment Problems installing the Astun Technology Loader in Windows 7
@user23808 it depends. If you use the standard ogr2ogr command found in the loader.config file it will load directly into Postgis. This is slightly slower though. The alternative is to create SQL dump files and this uses the loader.config in the pgdump folder but I would not do it this way just yet
Nov
13
comment Create interactive map with no server
@johanvwd I amended your code and successfully got it working but it is awfully slow even on a topojson of 1.4Mb, let alone the one is need to use which is 8Mb. Any other thoughts??
Nov
13
comment D3 adding topojson - no data visible
@Mapperz - thanks for the links. The boundaries I require are different from those included as OpenSpace boundaries, as a result I need to add them as a seperate overlay. The .js script I am sure will be useful
Nov
13
comment Create interactive map with no server
@ChrisInCambo - many thanks for the example which does exactly what I am after but have struggled to get D3 and my topojson working, so have posted a different question
Nov
13
comment Create interactive map with no server
@johanvwd having failed at using D3 and topojson am going to give your example a go. Many thanks for adding the code
Nov
12
comment Using OS Mastermap SLDs in QGIS
I have added an answer to your other question which I hope helps
Nov
12
comment Create interactive map with no server
@johanvdw do you have an example of topojson loaded into openlayers?
Nov
12
comment Create interactive map with no server
@Mapperz that is an impressive reduction in size. Can topojson be in a different projection than spherical mercator?
Nov
11
comment Using OS Mastermap SLDs in QGIS
@user23808 we use PostGIS and the Astun Loader internally as do lots of Councils so that is a good place to start. If any of the answers were useful remember to accpect one of them
Nov
7
comment Geoserver WMS v Geowebcache offset?
updated with all my HTML code and geowebcache config file
Oct
7
comment How to save a QGIS 2.0 project template?
brilliant thanks very much