The dialog Arc is used to perform the settings for an elliptic arc to decorate the plot.

The Width and Height of the ellipse can be entered in cm. The height is set equal to the width when  Circular arc is checked. With Start and Length the arc's start angle and length can be set in degrees. The Rotation of the ellipse around the left bottom corner can be entered in degrees. With  x0 and y0 the position of the center may be set.

With Line width the relative width of the line to draw the arc may be set. A setting of 100 % corresponds to a normal value. The Color of the arc 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 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.