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bio website sites.google.com/site/mwtoews
location Wellington, New Zealand
age 34
visits member for 3 years, 8 months
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I'm a hydrogeologist. An expert of many random things.


1d
comment Subsetting a x,y,z text file with a polygon shapefile
It is installed with GDAL, often packaged as gdal-bin. For Windows, install with OSGeo4W.
1d
comment gdalnumeric in python virtualenv
As a side note, gdalnumeric was deprecated 7 years ago (in 2007).
2d
comment Are any fictional worlds available in some GIS format?
My favourite fictional maps are of the Koana Islands, but I'm not sure where to obtain the base data for it.
2d
comment Intersect Shapefiles using Shapely
@GISDanny The layers referenced in the SQL query need to be in the same directory, but the CopyLayer can write the result to a different folder and/or a different file format (e.g., to write to any other vector format listed here where "creation" is supported).
2d
comment Intersect Shapefiles using Shapely
Crazy timing! Also, I'm not sure what the warning is. Shapefiles sometimes allow geometries that are not regarded to be valid, and perhaps the source shapefile has some of these.
2d
comment Intersect Shapefiles using Shapely
@GISDanny you don't need to use an os.system call, see updated answer
2d
revised Intersect Shapefiles using Shapely
expand a python answer
2d
answered Intersect Shapefiles using Shapely
2d
revised Intersect Shapefiles using Shapely
syntax highlight things
Oct
23
answered Subsetting a x,y,z text file with a polygon shapefile
Oct
22
revised PostGIS syntax (function()).*
added 149 characters in body
Oct
22
answered PostGIS syntax (function()).*
Oct
21
comment Ground Penetrating Radar (GPR) to ESRI raster format
As far as I know, ArcGIS doesn't have any native geophysical tools with this capability. Esri rasters are flat on maps, and not vertical.
Oct
21
comment Ground Penetrating Radar (GPR) to ESRI raster format
I'm guessing you have vertical tomographic profiles, which from a map perspective would be lines. What are you expecting to process / see?
Oct
19
answered smoothing a set point in R
Oct
19
comment problem transforming CRS coordinates EPSG:4269 to EPSG:3857 in python
It's not clear if you have done it, but it's a really good idea to use osr.UseExceptions()
Oct
16
reviewed Approve suggested edit on Is there a way to include code/language for offsets within the “script” at the CRS dialogue screen
Oct
15
answered Geometric Operations in GIS Systems
Oct
15
awarded  shapefile
Oct
15
answered shapefile record has no attribute named bounds