ritterim / atlas Goto Github PK
View Code? Open in Web Editor NEWA library that contains geographical data about states, counties, and zip codes.
License: MIT License
A library that contains geographical data about states, counties, and zip codes.
License: MIT License
Non- Issue
We have data for March 2015.
Counties
CountyZipCode
States
ZipCodes
hmmm...not sure if i created these links right
@JCarver27 commented on Tue Nov 02 2021
We're missing a zip code in Tide....75033.
Steps to reproduce the behavior:
75033 is a valid zip in TX.
@JCarver27 commented on Tue Nov 02 2021
21764 is also showing an error.
@lightyeare commented on Tue Nov 02 2021
Uses Ritter.Atlas, which hasn't been updated in a while.
@bwarner22 commented on Wed Nov 03 2021
Ritter.Atlas ???? didn't know we had such a thing!
Atlas is missing:
However, ScfCode can be easily derived from the zip code. The ScfCode is the first three digits of the zip code.
Atlas includes the AnsiCodes for County and State.
Line 11 in d8013a1
float
based on existing coord.-data (https://github.com/ritterim/atlas/blob/d8013a18f528f1e7b58efb60d1c154814b56c69d/common/ZipCodes.csv), but double
would afford more precision if this data gets updated in the future without causing child-apps. to be updated.
Please note, however, the distance-differences would be under one-hundred feet for both lat. and long.
Given a second of lat. (1" = 1/3600 = 0.000277778) is constant at roughly one-hundred feet (http://nationalatlas.gov/articles/mapping/a_latlong.html) and any precision gains for lat. would be to the right of a float's max. precision:
12.345678f = 12.34568
12.345674f = 12.34567
12.34568 - 12.34567 = 0.00001 // 0.036 lat. sec. ~ 3.6 ft.
Long. secs. are not constant (are dependent on lat. position), but empirical data (based on PA-lat.) shows similar distances between secs. and again would only have maximum impact if mid-west and westward U.S. zip-codes are used (since mid-west long. have triple-digit degrees).
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