15,164 reputation
11355
bio website mappagnosis.com
location United Kingdom
age
visits member for 2 years, 8 months
seen 33 mins ago

I am a freelance GIS consultant with specialities in 3D visualisation (e.g. www.deepmaps.co.uk and animated landscape models for public participation in planning), wind farm analysis and bespoke geospatial analysis.

Previously I have lead a small commercial GIS consultancy team in a large research institute, headed up a team undertaking a massive geo-data processing endeavour of entire country and world-wide data sets as part of an ambitious computer games development project before becoming GeoMatics Manager for the UK branch of a German wind farm company.

I 'grew up' on ArcInfo 6.x and migrated to ArcGIS, while dabbling with Idrisi and ERDAS Imagine. I now predominantly use open source software (e.g. GDAL/OGR, Shapely, PostGIS, OpenLayers, QGIS, GRASS, Mapnik etc.) and highly commend the OSGeo 'stable' to anybody looking for an alternative to expensive proprietary GIS solutions. Other experience includes WindPro, WindFarm, OpenWind, Blender, GIMP, Python and Eclipse.


24m
comment Data defines symbology in QGIS
Assuming you are using the standard simple marker circle, then do a similar thing but set the expression for the Size property (it just takes a single value of 'double' - the default is 2.0) so instead of "THEN '255,0,0'" put something like "THEN 25.5". If it is the ellipse marker then you will need to set both Symbol Width and Symbol Height properties.
18h
revised Data defines symbology in QGIS
added 193 characters in body
18h
answered Data defines symbology in QGIS
1d
comment Converting shapefile to KML using JavaScript or PHP?
Why does that matter? Are you trying to create a 'live' service whereby a shapefile can be uploaded to your server by a user and converted to KML on the fly?
1d
comment Converting shapefile to KML using JavaScript or PHP?
You can probably call ogr2ogr as a subprocess through a serverside script if that is what you mean. Howevre, once you have converted your shapefiles to KML, there is nothing else to do. So, you need to be more specific by what you mean 'run in the web server' and why a batch process is not adequate for your use-case. Please edit your question with additional information.
2d
comment How to measure correct distances in a project with OpenLayers background?
Using the on-line calculator, the site you link to gives me the following distances (A,B) = 81.24km and (B,C) = 108.4km. Why are you convinced yours are correct? Also, where did you get your coordinates? If they are off Google then take them with a pinch of salt because Google is projected in Pseudo Mercator (which is great for web mapping but not very accurate for measuring distances) not WGS84. So you would be misleading QGIS by specifying WGS84.
2d
answered Converting shapefile to KML using JavaScript or PHP?
Aug
21
awarded  Enlightened
Aug
19
awarded  Constituent
Aug
11
awarded  Caucus
Aug
10
answered How to use OS Terrain 50 in QGIS
Aug
9
comment Wind Farm Viewshed Analysis
You need to recursively unzip the folders and then merge the data. I can tell you how to do it but it is probably better asked as a separate question according to board rules (namely that it is a very different issue).
Aug
9
answered Wind Farm Viewshed Analysis
Aug
9
comment What UTM like coordinate system is this?
Well, half of the coordinate is very close (which might be coincidental). The second coordinate is an order of magnitude too small (which is why I wondered if it had been written down wrong... or maybe a false Northing has been incorporated). As it comes from an API, can you get in touch with the people whose API it is and ask them what coordinate system they are using?
Aug
8
reviewed Reject suggested edit on Stuck in loading raster to PostGIS
Aug
8
comment What UTM like coordinate system is this?
That is still problematic. The DHDN coordinate zones uses Gauß-Krüger and Zone 4 gives 4622564.6, 5656167.18 for the coordinates provided in the map by the OP. These DHDN4 coordinates match the location in the map, and the first coordinate is very close, which makes me wonder whether the second coordinate has been provided incorrectly (either by or to the OP).
Aug
8
comment Joining polygons with same boundaries
Do you want to retain the boundaries between the polygons?
Aug
8
answered How to convert multiple csv files to shp using Java
Aug
8
revised QGIS, Multiple lines and wrap on character?
added 395 characters in body
Aug
8
answered QGIS, Multiple lines and wrap on character?