R: Interactively Measure Distance

clickdist {spatstat.geom} | R Documentation

## Interactively Measure Distance

### Description

Measures the distance between two points which the user has clicked on.

### Usage

      clickdist()

### Details

This function allows the user to measure the distance between two spatial locations, interactively, by clicking on the screen display.

When `clickdist()` is called, the user is expected to click two points in the current graphics device. The distance between these points will be returned.

This function uses the R command `locator` to input the mouse clicks. It only works on screen devices such as ‘X11’, ‘windows’ and ‘quartz’.

### Value

A single nonnegative number.

### Author(s)

Adrian Baddeley Adrian.Baddeley@curtin.edu.au, Rolf Turner r.turner@auckland.ac.nz and Ege Rubak rubak@math.aau.dk.

### See Also

`locator`, `clickppp`, `clickpoly`, `clickbox`

[Package spatstat.geom version 2.3-2 Index]