6,963 reputation
353146
bio website djq.me
location Dublin, Ireland
age
visits member for 4 years, 2 months
seen 41 mins ago

interested in postgis, geodjango, qgis, python, R and LaTeX.

twitter: @djq


1h
comment Best program or tool for visualising big data sets really fast 10-20 GB data if the users don't know squat about GIS?
I think this question needs to be much more specific to result in useful answers. 10-20 GB of mostly vector data is very vague. Are they points? Polygons? Do you want users to be able to choose cartographic styles? Zoom levels? See individual features? GPU considerations don't really seem relevant this early on.
2h
awarded  Popular Question
2h
comment Visualize large amount of geopoints with Geoserver and PostGIS
I expanded my answer to describe the general process
2h
revised Visualize large amount of geopoints with Geoserver and PostGIS
added 407 characters in body
1d
awarded  Nice Question
2d
answered Visualize large amount of geopoints with Geoserver and PostGIS
2d
comment Simplifying geometries and calculating non-spatial averages
'zooming' suggests that you are viewing the data via a viewer of some sort; it's not an inherent property that you can calculate. If you have some spatial unit that you can aggregate upwards, perhaps you could use that? Can you post an example of the data illustrating the table structure?
2d
reviewed Reopen How to upload NetCDF and HDF files to Geonode?
Nov
20
comment Computing intersections for each geometry in a table
Out of curiosity, is a.id < b.id better than a.id != b.id as you will reduce the total number of queries?
Nov
19
awarded  Notable Question
Nov
13
comment List of useful Add-Ins for ArcGIS Desktop?
This is a four year old comment that's obsolete. While short, I don't think it needs to be expanded.
Nov
11
awarded  Popular Question
Nov
10
awarded  Notable Question
Nov
8
awarded  Notable Question
Nov
5
reviewed Reviewed What is the area that OGR extracts from the (geometry) shp files for polygons?
Nov
5
reviewed Reviewed QGIS Cross Section Profile Distance using Ellipsoid?
Nov
4
revised Should you switch from ArcMap to QGIS?
spelling
Nov
1
comment How to fix scaling mismatch of shape file layer & PostGIS table Lat/Lon data layer for India Map in Geoserver?
It's a little hard to understand your question (can you add screen shots of what you see and/or values that you are getting)? Check that you are using the same projection in both places; this is a common source of error.
Nov
1
reviewed Close How convert a Modis hdf to txt with lat long using a command line
Oct
28
awarded  Famous Question