absolute_angle: Return the smallest possible angle between two compass...

In parksandwildlife/wastdr: WA Sea Turtle Database 'WAStD' API Wrapper

Return the smallest possible angle between two compass bearings

Description

Return the smallest possible angle between two compass bearings

Usage

absolute_angle(from, to)

Arguments

from	The start bearing, counted clockwise from North
to	The end bearing, counted clockwise from North

Value

The smallest possible angle between the two bearings as decimal degrees within [0..360[.

See Also

Other helpers: add_dates(), datetime_as_isoweek(), datetime_as_seasonweek(), datetime_as_season(), datetime_as_turtle_date(), exclude_training_species(), exclude_training_surveys(), extract_possibly(), fdate_as_tdate(), filter_missing_site(), filter_missing_survey(), filter_surveys_missing_end(), filter_surveys_requiring_qa(), filter_wastd_season(), get_more(), gj_linestring_to_st_linestring(), httpdate_as_gmt08_turtle_date(), httpdate_as_gmt08(), httpdate_as_season(), humanize(), join_tsc_sites(), leaflet_basemap(), map_chr_hack(), mean_bearing(), mis_bearing(), odkc_works(), read_table(), sentencecase(), sf_as_tbl(), tdate_as_fdate(), tracks_as_geojson(), tun(), urlize(), verify_odkc_turtledata(), verify_wamtram_data(), verify_wastd_data(), wastd_works(), wastdr_msg_abort(), wastdr_msg_info(), wastdr_msg_noop(), wastdr_msg_success(), wastdr_msg_warn(), wastdr_settings(), wastdr_setup()

Examples

testthat::expect_equal(absolute_angle(NA, 10), NA)
testthat::expect_equal(absolute_angle(10, NA), NA)
testthat::expect_equal(absolute_angle(0, 20), 20)
testthat::expect_equal(absolute_angle(20, 0), -20)
testthat::expect_equal(absolute_angle(10, 0), -10)
testthat::expect_equal(absolute_angle(20, 60), 40)
testthat::expect_equal(absolute_angle(350, 10), 20)
testthat::expect_equal(absolute_angle(10, 350), -20)

parksandwildlife/wastdr documentation built on Nov. 17, 2022, 4:52 p.m.