R/track.R

In CraigMohn/rideReadGPS: Read GPS Track Files (fit or gpx)

#' trackpoint data for track files read by bikeCadHr functions
#'
#' @details Data fields for each trackpoint:
#'
#' \itemize{
#'  \item{timestamp.s - POSIXct timestamp}
#'  \item{distance.m - distance from speed sensor or gps coordinates}
#'  \item{altitude.m - elevation at trackpoint as reported by gps}
#'  \item{speed.m.s - speed at trackpoint either speed sensor or gps coordinates}
#'  \item{heart_rate.bpm - heartrate recorded at the trackpoint}
#'  \item{cadence.rpm - (possibly corrected) cadence recorded at the trackpoint}
#'  \item{power.watts - power at trackpoint as reported to GPS from power meter}
#'  \item{temperature - temperature recorded at the trackpoint}
#'  \item{segment - segment identifier for the trackpoint}
#'  \item{stopped - not moving at trackpoint}
#'  \item{deltatime - numeric time since last trackpoint (seconds)}
#'  \item{position_lat.dd - latitude in decimal degrees at the trackpoint}
#'  \item{position_lon.dd - longitude in decimal degrees at the trackpoint}
#'  \item{startbutton.date - integer containing human readable date stamp for ride,
#'       used to match summary and detailed track data, derived from the source
#'       filename (garmin defaults name activity records based on start button time)
#'       format is YYYYMMDD}
#'  \item{startbutton.time  - integer containing human readable time stamp for ride,
#'       used to match summary and detailed track data, derived from the source
#'       filename (garmin defaults name activity records based on start button time)
#'       format is  HHMMSS, where HH is 00-23, MM and SS are 00-59}
#'  }
#'
#'  \strong{(all distances are in meters, times are in seconds or minutes}
#'
#' @name tracks data frame contents
#'
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