This attribute determines the line width used when drawing each element of graphical output produced by a Plot. It takes a separate value for each graphical element so that, for instance, the setting " Width(border)=2.0" causes the Plot border to be drawn using a line width of 2.0. A value of 1.0 results in a line thickness which is approximately 0.0005 times the length of the diagonal of the entire display surface.

The actual appearance of lines drawn with any particular width, and the range of available widths, is determined by the underlying graphics system. The default behaviour is for all graphical elements to be drawn using the default line width supplied by this graphics system. This will not necessarily correspond to a Width value of 1.0.

Plot

• For a list of the graphical elements available, see the description of the Plot class.

• If no graphical element is specified, (e.g. " Width" instead of " Width(border)" ), then a " set" or " clear" operation will affect the attribute value of all graphical elements, while a " get" or " test" operation will use just the Width(Border) value.