jftuga/geodist

Stars
175
Rank 216,796 (Top 5 %)
Language
Go
License
MIT License
Created about 3 years ago
Updated 9 months ago

jftuga/geodist

jftuga

There are no reviews yet. Be the first to send feedback to the community and the maintainers!

Golang package to compute the distance between two geographic latitude, longitude coordinates

geodist

GoLang package to compute the distance between two geographic latitude, longitude coordinates

Algorithm Comparison

Vincenty is more accurate than Haversine because is considers the Earth's ellipticity when performing the calculation, but takes a longer time to compute.
Wikipedia: Haversine
Wikipedia: Vincenty
Is the Haversine Formula or the Vincenty's Formula better for calculating distance?

Example

example.go

	var newYork = geodist.Coord{Lat: 40.7128, Lon: 74.0060}
	var sanDiego = geodist.Coord{Lat: 32.7157, Lon: 117.1611}
	miles, km, ok := geodist.VincentyDistance(newYork, sanDiego)
	if !ok {
		fmt.Println("Unable to compute Vincenty Distance.")
		return
	}
	fmt.Printf(" [Vincenty] New York to San Diego: %.3f m, %.3f km\n", miles, km)

	var elPaso = geodist.Coord{Lat: 31.7619, Lon: 106.4850}
	var stLouis = geodist.Coord{Lat: 38.6270, Lon: 90.1994}
	miles, km = geodist.HaversineDistance(elPaso, stLouis)
	fmt.Printf("[Haversine] El Paso to St. Louis:  %.3f m, %.3f km\n", miles, km)

Online Calculators

Great Circle: NOAA: Latitude/Longitude Distance Calculator
Haversine: Moveable Type: Calculate distance, bearing and more between Latitude/Longitude points
Vincenty: CQSRG: WGS-84 World Geodetic System Distance Calculator

Acknowledgements

Haversine Algorithm in GoLang
Vincenty Algorithm in JavaScript

less-Windows

GNU less compiled for Windows 10 & 11. Stand-alone version with no dependencies.

TtlMap

A golang map in which entries expire after given a time period

gofwd

A cross-platform TCP port forwarder with Duo 2FA and Geo-IP integration

universe

A group of my various scripts, see the Manifest (below)

dtdiff

Golang package and command line tool to return or output the difference between date, time or duration

spotprice

Quickly get AWS spot instance pricing

sqs_clipboard

Use AWS SQS as a clipboard to copy and paste across different systems and platforms

ipinfo

Return IP address info including geographic location and distance when given IP address, email address, host name or URL

duu

Directory Usage Utility

DateTimeMate

Golang package and CLI to compute the difference between date, time or duration

chars

Determine the end-of-line format, tabs, bom, and nul characters

photo_id_resizer

Resize photo ID images using face recognition technology

HTTPie-Windows

a stand-alone HTTPie windows binary

terraform_cloudfront_builder

Use Terraform to create an AWS CloudFront website, ACM certificate, Route53 DNS entries and a S3 bucket

spo_view_it

Chrome extension to force SharePoint Online to use Reading View for Word and Excel documents

timeit

A cross-platform CLI tool used to time the duration of the given command

utils

a small collection of (possibly) outdated command-line utilities

fstat

Get info for a list of files across multiple directories

freq

Display the frequency of each line in a file or from STDIN

compinfo

Display basic computer info

tcpscan

A fast, simple, multi-threaded cross-platform IPv4 TCP port scanner

dcmp

Compare files within two directory trees for equivalency

github_actions_notes

My personal notes about Github Actions

flash_read_cache_stats

View stats from ESX's Flash Read Cache using Grafana and InfluxDB

nics

Display information about Network Interface Cards (NICs)

ellipsis

Go module to insert an ellipsis into the middle of a long string to shorten it

WindowsPowerShell

My personal PowerShell profile

foxcolorbox

Firefox extension that allows you to change and customize browser Window colors

date_gap_finder

detect date gaps in a CSV file

timeshift

Shift date/time from log files or from STDIN

deidentify-gui

An easy to use GUI for the deidentify command-line program

terraform_ec2_spot_instance

Use terraform to create an AWS EC2 spot instance

fpp

Find Program Path: iterate through the PATH environment variable to search for the given programs

deidentify

Deidentify people's names along with pronoun substitution

changecase

convert command line arguments to upper, lower or title case

aws-sso-util-next

the benkehoe/aws-sso-util project but with GitHub Actions

sns_publish

command line tool to send message or file to AWS SNS topic subscribers

csv_word_merge

Merge CSV fields into a MS Word template

homebrew-tap

Homebrew tap for jftuga command-line tools

file-watcher

Monitors a given file location for create, change, rename and delete file events