# get_3d_angle: Compute an angle in 3D space In pathviewr: Wrangle, Analyze, and Visualize Animal Movement Data

 get_3d_angle R Documentation

## Compute an angle in 3D space

### Description

Compute an angle in 3D space

### Usage

``````get_3d_angle(x1, y1, z1, x2, y2, z2, x3, y3, z3)
``````

### Arguments

 `x1` x-coordinate of first point `y1` y-coordinate of first point `z1` z-coordinate of first point `x2` x-coordinate of second point (vertex) `y2` y-coordinate of second point (vertex) `z2` y-coordinate of second point (vertex) `x3` x-coordinate of third point `y3` y-coordinate of third point `z3` z-coordinate of third point

### Details

Everything supplied to arguments must be numeric values or vectors of numeric values. The second point (x2, y2, z2) is treated as the vertex, and the angle between the three points in 3D space is computed.

### Value

A numeric vector that provides the angular measurement in degrees.

### Author(s)

Vikram B. Baliga

Other mathematical functions: `calc_min_dist_v()`, `deg_2_rad()`, `find_curve_elbow()`, `get_2d_angle()`, `get_3d_cross_prod()`, `get_dist_point_line()`, `get_traj_velocities()`, `get_velocity()`, `rad_2_deg()`

### Examples

``````get_3d_angle(
0, 1, 0,
0, 0, 0,
1, 0, 0)
``````

pathviewr documentation built on March 31, 2023, 5:47 p.m.