Joel McCune
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arcpy

A collection of 12 posts

Python

Cloning ArcGIS Conda Environments

ArcGIS Pro, when initially released, included an incredibly powerful capability, the included Python environment is a Conda environment. This unlocks the extremely powerful and vast universe of installable packages available through Conda. Further,

  • Joel McCune
    Joel McCune
1 min read
Python

Relative Module Imports in an ArcGIS Python Toolbox

The idea of ArcGIS Python toolboxes really appeals to me. I really like them. As is frequently the case in life, the devil is in the details. Python Toolboxes have plenty of interesting

  • Joel McCune
    Joel McCune
1 min read
Python

Purge Scratch GeoDatabase

In a lot of the scripts I write, especially data preparation pipelines, I use the scratch Geodatabase - a lot. At the end of these pipelines, especially when testing and re-running the processes

  • Joel McCune
    Joel McCune
1 min read
arcpy

Use ArcPy to Match Spatial Reference

Frequently when performing data preparation or analysis in GIS the spatial reference or projections need to be modified to match. Also, much of the time the data needs to be modified to match

  • Joel McCune
    Joel McCune
1 min read
ArcGIS

ArcGIS Python Reproject Geometry Object List

Frequently I have a large list of geometry objects I need to get reprojected for analysis. A while back I discovered the reprojectAs method of the arcpy.Geometry object. While useful, I still

  • Joel McCune
    Joel McCune
2 min read
Pandas

ArcGIS to Pandas Data Frame v2.0

One of the most popular posts on my blog discusses loading data from an ArcGIS table, either spatial (a Feature Class) or even nonspatial, to a Pandas DataFrame to take advantage of the

  • Joel McCune
    Joel McCune
1 min read
Python

ArcPy Field Name List

Frequently, especially when using cursors, I need to quickly get a list of field names not including the ObjectID nor Geometry fields. I accomplish this by using a quick shorthand function. fields_list

  • Joel McCune
    Joel McCune
1 min read
Python

ArcGIS to Pandas Data Frame

With the release of ArcGIS 10.4, a few packages included have come to my attention. While numpy has been in there for quite some time, now scipy and pandas are now included.

  • Joel McCune
    Joel McCune
1 min read
arcpy

Testing Regular Expressions

Extracting pieces of text out of larger strings based on patterns, this is what regular expression matching facilitates. It really is great stuff...once you wrap your head around it. Most frequently I

  • Joel McCune
    Joel McCune
1 min read
arcpy

Automatically Find and Log All Broken Layers in Multiple Maps

Last week while teaching a Python class a student asked about a logical workflow, finding all maps with broken layers under a parent directory and reporting the results. Ideally this could be set

  • Joel McCune
    Joel McCune
1 min read
arcpy

Programming ArcGIS 10.1 with Python Cookbook

First and foremost, I have to concede, Packt Publishing recently provided a copy of Programming ArcGIS 10.1 with Python Cookbook to review. Packt provided a copy free of change in exchange for

  • Joel McCune
    Joel McCune
3 min read
ArcGIS

Create List of Unique Table Values using Data Access Module

A while back I posted a slightly more verbose solution for this. Since then two things have changed. First, I have used Python a LOT more and understand how to use sets, lists

  • Joel McCune
    Joel McCune
1 min read
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