TrajTranslate: Translate a trajectory

In JimMcL/trajr: Animal Trajectory Analysis

Translate a trajectory

Description

Shifts an entire trajectory by the specified delta x and y.

Usage

TrajTranslate(trj, dx, dy, dt = 0)

Arguments

trj	The Trajectory to be translated.
dx	Delta x.
dy	Delta y.
dt	Delta time.

Value

A new trajectory which is a translated version of the input trajectory.

Examples

# Shift a trajectory so that its origin is (10, 15).
# Note that trajectories created by TrajGenerate always start at (0, 0)
set.seed(42)
trj <- TrajGenerate()
trj <- TrajTranslate(trj, 10, 15)

# Translate a trajectory so its origin (0, 0) and it starts at time 0
trj <- TrajTranslate(trj, -trj$x[1], -trj$y[1], -trj$time[1])

JimMcL/trajr documentation built on Jan. 31, 2024, 12:57 a.m.