To the Three Commenters who provided feedback to yesterday evening’s Diary post: “Thank you!”

It feels a bit counterintuitive, but I am not overly familiar with Social Media. I haven’t logged in to Facebook in over 4 years… I’m on a computer all day, and the last thing I want to do when I get off work is stare at another screen. That being the case, I am surprised at the speed of replies to my post. :)

And thank you for the recommendation of “Key:protect_class” ~ Looks like what I was needing!

============

GeoJSON

So, it turns out that JOSM can read JSON files. (Yay!) But it is not happy if I try to import a multipart polygon from a JSON file. And I really don’t want to make the OSM Community or JOSM unhappy.

So I built a little model in ArcGIS last night. It steps through my WMA boundaries feature class, splits multipart polygons into single part polygons, and transforms the latter into GeoJSON files projected into WGS_1984. There’s some fancy renaming too (honestly, it isn’t very fancy, but it keeps the output from being a total mess).

I now have GeoJSON files for 407 singlepart polygons. The 4 representing Broken Bow WMA have already been used to replace my hand-digitized attempt from earlier in the week.

Worries

My current worries revolve around topology.

• Areas managed by my Agency don’t always match up with other areas’ boundaries by conscious/cooperative design

Within my Agency, we use a Conformal Conic projection (NAD 1983) since it minimizes area/shape warping, and keeps distances comparable. But even when I reproject my data to Web Mercator, it doesn’t match up well to other’s boundaries even when that is expected.

• Should I simply match my areas to what is currently in place?

• I know where my Corner Location is in a ‘survey control point’ sort of way, but it is a few feet off from what is already in place.

• Do Editors match their Points, Lines, and Areas based on Mercator-Warped Basemap Imagery?
• Or is a more precise [transformed] series of coordinates preferred?

[[Edit: Grammar]]