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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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Dec
17
comment Can one parameter choice on Python toolbox tool set Display Names of other parameters?
@MichaelMiles-Stimson C#/VB.net are out of scope for me - I plan to remain an ArcPy/Python only developer because it's the best thing since AML (and in most respects surpasses it).
Dec
17
comment Can one parameter choice on Python toolbox tool set Display Names of other parameters?
@MichaelMiles-Stimson I tried tool validation of a Python script tool first, and hit the read-only Display Name there too. I've moved to a Python Toolbox tool because that adds some extra functionality and I was hoping might remove the read-only Display Name limitation. I'm starting to experiment with Value Tables (which are only available to Python Toolboxes) because I think that might be the next biggest stick to hit this requirement with.
Dec
16
comment Do I have problem with compare layout QGIS vs. ArcGIS?
Can you edit your question to let us know what difference you are wanting to have explained - there seem to be many.
Dec
16
comment Can ArcPy fill forms in Add-in interface?
@EnergeticCodfish If this solved your problem can you click the green Accept button, please?
Dec
15
comment Run a locator task
Would you be able to edit your question to indicate whether you are using the ArcGIS API for JavaScript or another "javascript api", please? Also, be sure to include a snippet of your code that shows where you are stuck.
Dec
15
comment How to use Vector Ruggedness Measure (VRM) tool from ArcScripts at latest version of ArcGIS for Desktop?
@jc22 Since this solved your problem I think you should click the green Accept button to reward the answerer.
Dec
15
comment Vector Ruggedness Measure (VRM) tool does not add output map to display?
Would you be able to edit your question to indicate whether you are using the same tool that is discussed in gis.stackexchange.com/questions/110397/…, please?
Dec
15
comment Methods for converting a regular polygon grid to a numpy array
I think you should edit your update out of your question and into an answer that you will also be able to self-accept. Self-answering questions is perfectly acceptable.
Dec
15
comment How do I auto-populate more than one other attribute field with values based on the value of another field within the same record?
Would you be able to edit your question to provide more details about precisely what you are trying to do, where you are stuck, and what software and version you are using, please?
Dec
15
comment Error 000728 field does not exist within table - field already exists
When responding to requests for clarifications would you be able to use the edit button to revise your question body rather than contributing to a longer comment trail, please? How to ask a good question? is a useful reference on how best to attract potential answerers to your question.
Dec
15
comment How to add/draw data in ArcMap?
Please be aware that GIS SE is not here to do labs/homework/assignments for people and as per a Meta discussion our community will expect to see research effort from you at each step you ask for help on.
Dec
15
comment How to add/draw data in ArcMap?
So that should answer your question about where to begin and give you the basis for your final map. The other thing you said you need to create is an "additive model" so I recommend that you review whatever lectures/notes you have on that to see whether you can take the next steps from there. If not, then research the web/here to see what other help may be available, and if you are still stuck then you should be in a position to ask a new question using the advice offered in How to ask a good question?.
Dec
15
comment Error 000728 field does not exist within table - field already exists
Would you be able to edit your question to include all of a code snippet that you can run to see things working up to where you are stuck, and then the whole error message that is being returned when you run that code snippet, please? Also, let us know where you are running this code from e.g. IDLE, ArcMap's Python window, a Python script tool, or ...?
Dec
15
comment Can i input two layers in data driven pages
This appears doable using ArcPy, and can possibly use less code by incorporating DDP. However, I think you need to edit your question to explain how you choose which black polygon in the overview corresponds to the current (red) polygon in the index layer. Is the black polygon ID recorded in the attribute table of the index layer, or is the black polygon chosen by its overlap, or ...? Is ArcPy in-scope as an answer? Can you include the names of your two layers so that any answers can reference them?
Dec
14
comment Which route will provide the best education and return on investment for a GIS career?
Welcome to GIS SE! There has been a recent discussion on career questions at meta.gis.stackexchange.com/questions/3746/… and I think there is general agreement that they can be difficult to accommodate within our focussed Q&A format. Alternatively, perhaps ask in the GIS Chat Room.
Dec
14
comment Syntax error using ArcPy Spatial Analyst module in Python
Welcome to GIS SE! If you think the error is coming from the first few lines, then would you be able to use the edit button to reduce your code to a snippet of just enough to demonstrate that error, please? Also, can you include the precise error message.
Dec
13
comment Query for duplicate records in a feature class table in FileGeodatabase
You may want to review How to ask a good question? to refresh the protocols of this site, which are quite different from those of discussion forums and other Q&A sites.
Dec
13
comment Why dissolve creates many extra features?
Would it be possible to include pictures of some polygons that are not being processed in the way you desire, please? Not 10,000s of polygons - just 2-3 of your simplest ones - or some mocked up circles/squares. I suspect preparing such examples may lead you to answer your own question.
Dec
13
comment Query for duplicate records in a feature class table in FileGeodatabase
Would you be able to edit your question to clarify whether your are looking for duplicate values in a field or duplicate records (across all fields), please?
Dec
13
comment Web Mapping Service Beginnings
Welcome to GIS SE! Please do not take offense that your first question has so quickly been made a duplicate of our most frequently asked question. I recommend you review that Q&A, decide which answer/technology looks like it may best meet your requirements and constraints, then give it a go. If you get stuck you will then be in a good position to ask a more focussed question about that.