@pimms.param<EOL><INDENT>def radius(r):<DEDENT>
if r is None: return np.pi/<NUM_LIT><EOL>if not pimms.is_real(r) or r <= <NUM_LIT:0>:<EOL><INDENT>raise ValueError('<STR_LIT>')<EOL><DEDENT>if pimms.is_quantity(r) and not pimms.like_units(r, '<STR_LIT>'):<EOL><INDENT>raise ValueError('<STR_LIT>')<EOL><DEDENT>return r<EOL>
proj.radius is the radius of inclusion for the given map projection; this may be an value
given as a number or a quantity in terms of radians, turns, or degrees (e.g.,
pimms.quant(30, 'deg') will create a map projection all points within 30 degrees of the
center). If None, then pi/3.5 radians is used.