void page(width, height) BPLT.C Level 1
 
float width The width of the picture in inches (or cm) as measured 
on the full-page output.
float height The height of the picture in inches (or cm) as measured 
on the full-page output.
 
page() sets the size of the picture on the output page. Here, width and height refer to the shape of the picture viewed upright. The maximum size of the output page can be set using PlotLength() or PixPerUnit(). Otherwise, the maximum picture size is 9.00"  6.884" (unrotated) or 6.884"  9.00" (rotated), corresponding to the size of the default output page. If metric units are used the default sizes are 22.86 cm 17.48 cm (unrotated) or 17.48 cm  22.86 cm (rotated). If a smaller size is called for, it will be centered within this area unless pgshift() is used to offset it. 

If you call page(FULLPAGE), the macro FULLPAGE will ensure that your picture area will be the same as 
that of the drawing page. If you do not call page(), the default sizes will be used.

 

Page geometry