8.3 arrow

arrow [from] <x>, <y> [to] <x>, <y> [with <option> ... ]

Arrows may be placed on multiplot pages independently of any plots using the arrow command, which has the syntax:

arrow from x1,y1 to x2,y2

The arrow command may be followed by the with keyword to specify the style of the arrow. The style keywords which are accepted are nohead, head (default) or twohead, in addition to keywords such as colour, linewidth or linetype, which have the same syntax and meaning as in the plot command. An example would be:

arrow from x1,y1 to x2,y2 with twohead linetype 2 colour blue

Arrows receive unique multiplot identification numbers which count sequentially from one, and which are output to the terminal after the arrow command is called. By reference to these numbers, they can be deleted and undeleted subsequently with the delete and undelete commands respectively.