r"""
POV-Ray, The Persistence of Vision Ray Tracer
"""
from sage.misc.pager import pager
import os
class POVRay:
"""
POV-Ray The Persistence of Vision Ray Tracer
INPUT:
pov_file -- complete path to the .pov file you want to be rendered
outfile -- the filename you want to save your result to
**kwargs -- additionally keyword arguments you want to pass to POVRay
OUTPUT:
Image is written to the file you specified in outfile
EXAMPLES:
AUTHOR:
Sage interface written by Yi Qiang (yqiang _atNOSPAM_ gmail.com)
POVRay: http://www.povray.org
"""
def __repr__(self):
return 'POV-Ray The Persistence of Vision Ray Tracer'
def __call__(self, pov_file, outfile='sage.ppm', block=True, **kwargs):
if not os.path.isfile(pov_file):
return "%s not found" % (pov_file)
outfile = os.path.abspath(os.path.expanduser(outfile))
ext = outfile[-4:].lower()
try:
width = kwargs['W']
height = kwargs['H']
except:
return "You must specify a width and height."
cmd = "povray -D +FP +I%s +O%s " % (pov_file, outfile)
for k, v in kwargs.iteritems():
cmd += "+%s%s " % (k, v)
if not block:
cmd += ' &'
os.system(cmd)
def usage(self):
r = os.popen('povray').read()
pager()(r)
povray = POVRay()
