Latest Contributions by EricEagle

I've got a point feature class that is a result of BearingDistanceToLine --> GeneratePointsAlongLines.  It has generated around 150 points associated with about 400 lines. I'm attempting to go in and add curvature offsets to each point in this feature class based on its distance from its associated origin point.  The easiest way for me to do this is to bundle the features by the ORIG_FID field and then sort by OID@ (first is the origin, last is the furthest distance).  Similar to using a track ID in trajectory data. I'm trying to put it all in a dictionary that should look like this, and then use built in math package to do the calculations across the dictionary, and construct a new feature class (maybe faster than doing UpdateCursor).  Anyway it should look like this:   {1: [row, row, row, row], 2: [row, row, row, row], .... }     Here is how I'm attempting to implement, probably poorly:   with arcpy.da.SearchCursor("samplepoints", ["OID@", "ORIG_FID", "curvature"]) as cursor: uniques = sorted({row[1] for row in cursor}) c = {i: [row for row in cursor if row[1] == i] for i in uniques}   This ends up creating a dictionary that does pull the unique ORIG_FID in as keys, and sets the value as a list, but adds no rows.  Even though each ORIG_FID should be common to around 150 rows. Why is it not adding the rows even though row[1] should match i? ... View more

I'm porting a tool from R to be run in a managed ArcGIS Pro instance (no access to R).  In the script, destination points are calculated from a known origin based on bearing and distance. The script relies on the geosphere destPoint() method to do it, and is invoked like this: x = destPoint(origin, bearing, distance) x is a location object with .latitude and .longitude properties that return as floats for use in further processing. This seems like a super straightforward geometric problem but I am struggling to find how to use ArcPy to accomplish it.  For initial testing purposes I gave up and just pip installed GeoPy, using geopy.distance.distance(unit=distance).destination((origin.Y, origin.X), bearing) and it works beautifully but I do not like delivering stuff with janky 3rd party dependencies.   How do I do this in ArcPy without re-writing half of GeoPy? ... View more