R: Add fancy 3D arrows

addPTarrows {RFOC} | R Documentation

## Add fancy 3D arrows

### Description

Illustrate Pressure and Tension axis on Focal Plot using 3D arrows

### Usage

    addPTarrows(MEC)

### Arguments

`MEC` | Mechanism Structure

### Value

Graphical Side Effects

### Note

This function looks better when plotting the upper hemisphere

### Author(s)

Jonathan M. Lees<jonathan.lees@unc.edu>

### See Also

focpoint, BOXarrows3D,Z3Darrow

### Examples

     MEC = SDRfoc(65,25,13, u=TRUE, ALIM=c(-1,-1, +1, +1), PLOT=TRUE)

    addPTarrows(MEC)

[Package RFOC version 3.4-3 Index]