Graphical Input

Usage

locator(n=512)

Description

locator reads the position of the graphics cursor when the (first) mouse button is pressed. Unless the process is terminated prematurely by the user (see below) at most n positions are determined.

The input process can be terminated prematurely by pressing any mouse button other than the first, or by clicking outside the graphics window.

Value

A list containing x and y components which are the coordinates of the identified points.


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