spatial_error: Determine spatial error of a sighting localization

View source: R/spatial_error.R

spatial_errorR Documentation

Determine spatial error of a sighting localization

Description

This function uses the platform height & degrees down to the sighting from the horizontal plane in order to determine the spatial error of the survey instrument, e.g., a theodolite.

Usage

spatial_error(p, d, t = 0.000555556)

Arguments

p

Platform height in meters.

d

Degrees down from the horizontal plane to the waterline of the sighting.

t

The precision of the survey instrument, e.g., a theodolite, in degrees. The default is the degrees-equivalent of plus-or-minus 2 arc-seconds, which is a fairly common error rating for digital theodolites.

Value

A data.frame with all input values as well as true distance to the sighting and spatial error details (both near-far and left-right).

Author(s)

Mary Margaret Lemburg and Eric Keen Ezell, May 2024


ericmkeen/suRvey documentation built on Feb. 5, 2025, 7:44 a.m.