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Community Moderator for Geographic Information Systems SE

Moderator Pro Tem for Genealogy & Family History SE.

Freelance ArcGIS Specialist & GISP-AP with 25+ years Esri software experience, working where possible with Geoprocessing (including GP Services), ArcPy/Python, Open Source GIS, OGC Interoperability, OpenStreetMap, Zoology & Genealogy.

Author of:

  • ArcPy, ArcGIS for Desktop and Google Earth eLearning videos which are available via Discover Spatial
  • Introductory to Advanced level ArcGIS for Desktop and ArcPy training courses which are available Instructor-led or Self-paced - see PolyGeo website

Available for commercial ArcGIS consulting, training and support assignments, and willing to provide quotations to tackle any intractable ArcGIS for Desktop and ArcPy problems which appear on GIS Stack Exchange when they may be unsuitable to resolving expediently using its focussed Question & Answer format.

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Jan
20
comment Is there String Size Restriction in ArcGIS Python Script Tool parameter?
I made some edits to your question title, body and tags because you seemed to be saying that you were using a Python toolbox at 10.0 when they were new at 10.1. Instead I think your question is clearly about a Python script tool in a standard toolbox. Also, if @MichaelMiles-Stimson does not get a chance to return and supply an answer remember that it is perfectly acceptable to self-answer.
Jan
20
comment ArcMap Select By Attribute finds No feature selected when it should?
This sounds like ArcMap has become confused about something. I recommend restarting ArcMap, and probably rebooting, and then retesting to see if it is still misbehaving.
Jan
19
comment Merging multiple feature classes into one using Python
Please try to always include the text (not screenshots) of code and errors because that way they can be searched.
Jan
19
comment Python scripting error (merge)
Please try to always include the text (not screenshots) of code and errors because that way they can be searched.
Jan
19
comment Python scripting error (merge)
@radouxju I think it is correct to ask this as a new question rather than "as an edit of your previous question" because the earlier question already has an (accepted) answer that might become invalidated.
Jan
19
comment Python column checker-comparing 2 fields
Please try not to invalidate existing answers by changing the question that you are asking. Here @Geotob has provided a correct answer to your original question and I think should be rewarded. I am going to edit the original error message back into the bottom of your question but I think it would have been far preferable to Accept the answer, and then write a New Question.
Jan
19
comment INetworkBuild throwing exception of file read/write error?
I've assumed that this is an ArcObjects question and added a tag for that. I suspect that the people who follow that tag will probably want you to edit your question to include a code snippet that demonstrates the error, as well as the precise wording of the error. How to ask a good question? is always worth looking at.
Jan
19
comment How to use random number generator to select by attributes in ArcMap?
To find out how to create random integers between 1 and 5,000,000 I think you should search at Stack Overflow because that is a pure Python rather than GIS question. For example: stackoverflow.com/questions/3996904/…
Jan
18
comment How to accurately join data based on 1x1 degree grid-cell points to a shapefile
Would you be able to edit your question to perhaps include a graphic to illustrate what you are trying to describe in words, please?
Jan
18
comment How to deal with political boundaries in grid cell analysis?
Would you be able to edit your question to perhaps include a graphic to illustrate what you are trying to describe in words, please?
Jan
18
comment Spatial join 2 polylines without common attribute
I think this question will be much clearer if you can edit it to include a graphic that illustrates your inputs and desired outputs.
Jan
18
comment Is there free electricity network data for Asia?
It is still in Beta but I think questions related to obtaining Open Data may be better asked on the Open Data Stack Exchange where there is a geospatial tag available.
Jan
18
comment Is there free pipeline shape file data for Asia?
It is still in Beta but I think questions related to obtaining Open Data may be better asked on the Open Data Stack Exchange where there is a geospatial tag available.
Jan
17
comment Is there free pipeline shape file data for Asia?
@SS_Rebelious I suspect the downvotes have been placed because the asker has not included any details of their research prior to asking.
Jan
17
comment Writing ArcPy code to modify multiple attribute records?
Please edit your question to provide clarifications to it.
Jan
17
comment How to keep ArcMap Toolbar in a nice order?
If your symptoms match those in the links that @johns has provided, then I think this is one for Esri Support.
Jan
17
comment Lining attributes up with features when creating shapefile using PyShp?
When you get a chance, I am hoping you can write up what you did to help future readers encountering the same problem with PyShp. It is fine to answer your own question here.
Jan
17
comment How to use coverage tools in arcpy?
Would you be able to edit your question to include a code snippet that can be used by someone with an Advanced level license to see precisely where you are stuck, please?
Jan
17
comment Is it possible to reverse the trend/values of a raster?
I'm not sure if the migration to GeoNet has broken it but the link does not seem to lead to a solution.
Jan
15
comment API for Java and JavaScript app integration
This seems to be a cross-post of stackoverflow.com/q/27929043