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Calculate Latitude-Longitude Distance Constants

Source: R/documentation_CONSTANTS.R
deg2rad.Rd

Constants needed to calculate the distance between two latitude- longitude points on a globe, aka earth.

  • deg2rad | Degrees to Radians: 0.0174532925199433 for the conversion of degrees (specifically latitude and longitude values) to radians. Needed for calculating the distance between two locations on the globe using latitude-longitude values.

deg2rad = 180 deg2rad = pi/180

  • earth.radius.miles | Earth's Radius: 3963.17 miles.

  • earth.radius.km | Earth's Radius: 6373 kilometers.

Usage

deg2rad

earth.radius.miles

earth.radius.km

Format

numeric (double)

An object of class numeric of length 1.

An object of class numeric of length 1.

Functions

  • earth.radius.miles: Earth's Radius

  • earth.radius.km: Earth's Radius

Author

Emilio Xavier Esposito emilio.esposito@gmail.com (https://github.com/emilioxavier)