The dialog Arrow is used to perform the settings for an arrow to decorate the plot.

The Direction of the arrow can be entered in degrees. With  Length the total length is set in cm. With x0 and y0 the Coordinates of either the Head, the Center, or the End, may be set.

With Size the relative size of the arrow head may be set. A setting of 100 % corresponds to a normal value. The Color of the arrow is selected in the dialog Select Color, opened with the colored button.

The Type of the line is selected most convenient using the dialog  Lines, opened using the button right to the spin box, showing the actual representation.

The arrow can be set to be Double headed.

The dialog may be canceled without saving by use of the button Cancel. By using Apply changes are saved without closing the dialog. With OK changes are saved and the dialog is closed.