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Currently a GIS developer in the field of sustainability science.


Oct
7
accepted Can ArcGIS Pro use Python toolboxes written for ArcMap?
Oct
7
asked Can ArcGIS Pro use Python toolboxes written for ArcMap?
Sep
24
awarded  Autobiographer
Jul
16
comment Software to detect intersections (within a tolerance) between 3d polylines
I don't think the interset 3d tool in ArcGIS 3d analyst works with polylines. The python idea is based on GEOS, which I have used: GEOS suffers from the same problem as ArcGIS (it's not true 3d and will project to the xy plane before intersecting). Presumably shapely would do the same. But I may well check out those others!
Jul
16
comment Software to detect intersections (within a tolerance) between 3d polylines
Thanks. For a set of polylines rather than a single pair, efficiency becomes an issue - if I wanted to find all 3d intersections, do you know if the database implementation has an efficient way of searching for this, like Bentley-Ottmann or at least using bounding boxes?
Jul
15
asked Software to detect intersections (within a tolerance) between 3d polylines
Jul
2
awarded  Curious
Jun
26
accepted arcpy: join feature class (one to one) and get feature id of each joined object
Jun
26
comment arcpy: join feature class (one to one) and get feature id of each joined object
This is what I did in the end (copying the object IDs). Seems odd that Arc doesn't provide the JOIN_FID, but stranger things have happened before.
Jun
26
comment arcpy: join feature class (one to one) and get feature id of each joined object
Doesn't one-to-many only join features which intersect?
Jun
25
asked arcpy: join feature class (one to one) and get feature id of each joined object
Apr
11
asked All UK census geographies in one file irrespective of scale
Apr
10
asked Getis-Ord GI and Moran's I when interested in clustering of data values not points
Apr
7
answered Spatial join to kernel density / kernel density with polygon/point output in Arc
Mar
21
accepted ArcGIS: recode to different geography
Mar
12
answered ArcGIS: recode to different geography
Mar
11
comment ArcGIS: recode to different geography
Polygon neighbour only appears to take a single geometry input. But thanks, because you led me to discover tabulate intersection which looks like it does the job.
Mar
11
comment ArcGIS: recode to different geography
No, the polygons will be different sizes, but your statement about overlapping area still holds true for the portion of the output geography that overlaps.
Mar
11
asked ArcGIS: recode to different geography
Feb
24
comment Topology rules for a 3d network
Alternatively, if you think all of the above is sensible, please drop me a comment here (or an upvote on this comment) - it would be good to have some reassurance!