The graphics window may be resized, to suit user needs, by dragging on one of the corners of the window border. When the graphics window is resized, it will change size, but will keep the same ``aspect ratio'' i.e. the relative lengths will be kept the same6. To do this the correctly proportioned window is fitted within the region defined by the dragged cursor. Thus, to define a larger window, it is important to drag the cursor in both directions. The window can also be made smaller, but there is a minimum size.
By default the graphics window is created in the ``portrait'' format, in the same ratio as A4 paper. However other formats may be used and in particular ``landscape'' A4 format is available (see Section 20).