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21h
comment Calculate Z Median from 3d line?
This will fail on a polygon interior ring ("AttributeError: 'NoneType' object has no attribute 'Z'"). This seems to work: p=part.getObject(i); if p: z=p.Z.
21h
comment Script (ArcPy) vs field calculator (Python Parser) behaviour of getPart in ArcGIS for Desktop?
This will fail on a polygon interior ring ("AttributeError: 'NoneType' object has no attribute 'X'"). This seems to work: for p in part: if p: return p.X
Jan
29
comment Looking for more realistic 3D terrain renderer than ESRI Arcscene
I removed moderation complaint chatter -- it served it's purpose, Q is now re-opened and answered. Leaving it in place for future readers muddies the topic, in my opinion. @TreeMan please revert if you disagree or feel this is too intrusive an edit
Jan
29
comment Looking for more realistic 3D terrain renderer than ESRI Arcscene
Oh look, there's a Blender Stack Exchange site, a wee bit of GIS stuff there too: blender.stackexchange.com/questions/34307/gis-data-import
Jan
19
comment Calculate Z Median from 3d line?
This is near perfect, thanks (though indentation screwed me up for awhile. I'd put aList.append in parent). I changed it to use numpy.median() so I didn't have to add logic to handle when the list has even number of items. Those with ArcGIS Pro can use statistics.median() instead ('cause python 3). Good python + median reading: stackoverflow.com/questions/24101524/…
Jan
18
comment Calculate Z Median from 3d line?
It's not appreciably different from Add Surface Information tool, providing only min,max and mean statistics.
Jan
14
comment Setting “REAL” work/scratch workspace in ESRI/ERDAS etc
@jpmc26, yes. that's noted in first sentence (but perhaps not clear enough? I'll adjust)
Jan
14
comment Select by “Not-in” Location?
related: gis.stackexchange.com/questions/16561/…
Jan
12
comment Dissolve using GDAL/OGR?
Command line ogr2ogr solution at Dissolve/aggregate polygons with ogr2ogr or gpc?, should be adaptable to pure python solution without too much effort
Jan
12
comment Dissolve/aggregate polygons with ogr2ogr or gpc?
I had a devil of a time determining what to use for "geometry", was getting the error no such column: geometry. All of the similar examples here on Stack and in the reference docs use also broken variants like geo or the_geom. Finally I discovered ogrinfo -so summary only switch: ogrinfo -so somedata.gdb my_layer_name, and filter for "Geometry Column ="
Jan
12
comment Dissolve/aggregate polygons with ogr2ogr or gpc?
I presume the gpc referenced in title is GPC – General Polygon Clipper library from University of Manchester
Jan
12
comment Why do multiple raster processing tools fail with this DEM?
The OP already found a solution, re-acquire the data from source, but if you're in the circumstance where that is not possible try (a) compacting the file-gdb (Catalog >> select gdb >> Administration >> Compact Database), (b) reading with command line gdal-translate
Jan
12
comment Why do multiple raster processing tools fail with this DEM?
Megan add that as answer (and accept after 2 days). Self-answering is accepted and encouraged.
Jan
8
comment How does the geoprocessing results window store the tasks?
Related: Using shared results for process step documentation gis.stackexchange.com/a/176121/108
Jan
8
comment Results in ArcGIS search window do not bring up tool or description when clicked
I have seen similar but not identical symptoms. My hunch is that it has something to do with Internet Explorer security settings (the search and the help windows use an embedded IE engine).
Jan
8
comment How to install ArcView3 on 64-bit Windows?
should be comment to gis.stackexchange.com/a/5340/108
Jan
8
comment How to install ArcView3 on 64-bit Windows?
I really wanted this to be THE answer, but it just isn't for our environment. On my x64 Win7 machine the v3 IsEngine setup32.exe doesn't do anything. The process shows up in task manager (Process Explorer) but there are no visible windows and 0% CPU. I tried with both ArcView 3.3 and Spatial Analyst. ... +1 because it worked for you and might for others. Wish I could add another +1 for the excellent linked React OS forum thread.
Jan
7
comment Do you use a proven workflow to edit and document ArcGIS ModelBuilder models?
Re: Version Control: it mght be possible to add an entry to the context menu to "save as complete html", through a registry hack. see i.imgur.com/vu5UjOG.png
Jan
4
comment Export ArcGIS Online feature service with attachments
No worries, we all are from time to time (plenty of my own rushed and incomplete answers are in evidence without much search work...). Preventing mistakes is a hopeless exercise, it's how we respond when they happen that makes the difference.
Jan
4
comment Is it possible to emulate “Swiss style” shaded relief with ArcGIS tools?
Above is for ArcGIS 9.x. Also see Introducing Esri’s Next Generation Hillshade on ArcGIS Blog. It introduces v10.2+ image functions (.dll's that can be used in Image Analysis window) for swiss relief.