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import time
from ase.utils import writer
from ase.io.utils import PlottingVariables, make_patch_list
class EPS(PlottingVariables):
def __init__(self, atoms,
rotation='', radii=None,
bbox=None, colors=None, scale=20, maxwidth=500,
**kwargs):
"""Encapsulated PostScript writer.
show_unit_cell: int
0: Don't show unit cell (default). 1: Show unit cell.
2: Show unit cell and make sure all of it is visible.
"""
PlottingVariables.__init__(
self, atoms, rotation=rotation,
radii=radii, bbox=bbox, colors=colors, scale=scale,
maxwidth=maxwidth,
**kwargs)
def write(self, fd):
renderer = self._renderer(fd)
self.write_header(fd)
self.write_body(fd, renderer)
self.write_trailer(fd, renderer)
def write_header(self, fd):
from matplotlib.backends.backend_ps import psDefs
fd.write('%!PS-Adobe-3.0 EPSF-3.0\n')
fd.write('%%Creator: G2\n')
fd.write('%%CreationDate: %s\n' % time.ctime(time.time()))
fd.write('%%Orientation: portrait\n')
bbox = (0, 0, self.w, self.h)
fd.write('%%%%BoundingBox: %d %d %d %d\n' % bbox)
fd.write('%%EndComments\n')
Ndict = len(psDefs)
fd.write('%%BeginProlog\n')
fd.write('/mpldict %d dict def\n' % Ndict)
fd.write('mpldict begin\n')
for d in psDefs:
d = d.strip()
for l in d.split('\n'):
fd.write(l.strip() + '\n')
fd.write('%%EndProlog\n')
fd.write('mpldict begin\n')
fd.write('%d %d 0 0 clipbox\n' % (self.w, self.h))
def _renderer(self, fd):
# Subclass can override
from matplotlib.backends.backend_ps import RendererPS
return RendererPS(self.w, self.h, fd)
def write_body(self, fd, renderer):
patch_list = make_patch_list(self)
for patch in patch_list:
patch.draw(renderer)
def write_trailer(self, fd, renderer):
fd.write('end\n')
fd.write('showpage\n')
@writer
def write_eps(fd, atoms, **parameters):
EPS(atoms, **parameters).write(fd)
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