16 reputation
4
bio website biodata.io
location Perth, Australia
age 31
visits member for 2 years
seen 5 hours ago

Botanist and plant biologist with interests in data management and spatial analysis. Learning Django and Python while developing Biodata, a data management application for biologists and environmental scientists in Australia.


Jul
3
awarded  Supporter
Jul
3
comment Can't get SRS from PostGIS using Proj4 text
Thanks Paul. I came up with this solution too, although the EPSG numbers for the datums I'm interested in use a 283ZZ pattern. I'd still like to know why the PostGIS lookups are failing.
Jul
2
asked Can't get SRS from PostGIS using Proj4 text
Jul
31
answered Quantum GIS and ECW images?
Jan
16
awarded  Autobiographer
Aug
15
comment Vectors created in OTB Monteverdi are displaced
Hi Nick, yes it is very odd - I just did what you suggested, which worked although the layers are now about 1m apart (datum difference?). I can move the vector manually, but I would prefer to discover the source of the problem so that I don't have to adjust it every time (and also so I can understand it!)
Aug
15
comment Vectors created in OTB Monteverdi are displaced
Re: difference in CRS, thanks for pointing that out, but GDA94 is almost interchangeable with WGS84 - I think there is a maximum difference of a few meters. Reprojecting it doesn't make any difference.
Aug
15
comment Vectors created in OTB Monteverdi are displaced
Cool, thanks - comments definitely welcome. As I understand, Monteverdi is a self contained application - obviously it contains all the OTB libraries, but they are not available to other software. And Monteverdi is the only way to run OTB natively on a Mac.
Aug
15
comment Vectors created in OTB Monteverdi are displaced
Thanks for that - I have just discovered SEXTANTE and I'm learning how to use the GRASS tools - however, it still doesn't answer my question of why the shapefiles produced in Monteverdi are projecting 75km out of place. Regarding running OTB tools through SEXTANTE, I think this still requires the OTB applications to be installed on the system, which is not possible in OS X (once again, happy to be corrected though).
Aug
15
revised Vectors created in OTB Monteverdi are displaced
added 58 characters in body
Aug
15
awarded  Student
Aug
15
awarded  Editor
Aug
15
revised Vectors created in OTB Monteverdi are displaced
added version info for software and OS
Aug
15
asked Vectors created in OTB Monteverdi are displaced