8,918 reputation
135102
bio website StephenLead.com
location Sydney
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visits member for 3 years, 11 months
seen 10 hours ago

2d
comment Software that converts from legal description text?
I agree. It's hard enough to decipher the above description as a human, let alone trying to program a computer to figure it out automatically...
May
14
awarded  Notable Question
May
6
awarded  Notable Question
May
5
comment Create random points in ArcGIS on a polyline in a polygon
Can you please clarify the opening sentence, especially 1 within 500m of 100 points I already have? Perhaps spell out the exact problem, eg "I am trying to collect samples randomly-distributed along a road, where samples must (or must not) fall within 500m of existing samples"
May
4
awarded  Nice Question
May
4
answered Issues to be aware of running ArcGIS Desktop on Mac?
Apr
24
comment Large Rasters in ArcGIS & MapInfo
I haven't tried it and can't find much information about its compatibility with other products - but ArcGIS Server's Image extension might be worth researching further
Apr
23
awarded  Notable Question
Apr
22
reviewed Approve How to set raster projection in R
Apr
10
reviewed Reviewed Printing a map using GeoExt, Openlayers and GeoServer
Apr
10
reviewed Approve Use SLD to conditionally display points or polygons based on zoom level?
Apr
10
revised Toblers's Hiking Equation and Slope Dilemma
linked directly to the article, rather than the /tutorials/ folder
Apr
10
reviewed Approve Calculate change in canopy height over 10 years?
Apr
9
comment What web GIS is this? (And how can you tell?)
see mapengine.id=mapengine.ngis - it might also be a product by NGIS who used to write an application which sat on top of ArcIMS (I think). Can you share the page where you found the above request?
Apr
7
awarded  Notable Question
Mar
31
comment Avoiding Python version confusion when using IDLE with ArcGIS Pro and rest of ArcGIS for Desktop?
PythonWin also has great debugging capabilities, including a handy Watch window which lets you quickly see multiple variables' values
Mar
31
answered Avoiding Python version confusion when using IDLE with ArcGIS Pro and rest of ArcGIS for Desktop?
Mar
31
comment How to write to a single table via Python multiprocessing
@Luke thanks, multiprocessing.Lock() works. But it seems to remove any benefits of multiprocessing as it creates a bottleneck. I guess the whole approach is flawed, as per Michael's original comment which started this whole exploration!
Mar
31
comment How to write to a single table via Python multiprocessing
Thanks for the tips - not bad for your first multiprocessing script :) I think the problem only occurs when multiple processes try to access the insertCursor simultaneously, which doesn't happen in your simple script. If I replace your bList with the larger list generated by loading all the cities (for city in sCursor: bList.append([outTblName, city[0], city[1]]), I get the same result as my original script. That is, only around 450 of the original 593 cities are added.
Mar
30
comment How to write to a single table via Python multiprocessing
@MichaelMiles-Stimson how can I detect when the whole process is finished, so I can append the tables? If I include print("finished") indented by one tab (same level as the with arcpy.da.SearchCursor...) this is the first (not last) thing I see.