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add support for custom povray and unevaluate scene #19

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add support for custom povray and unevaluate scene #19

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8 changes: 6 additions & 2 deletions vapory/io.py
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Original file line number Diff line number Diff line change
Expand Up @@ -54,7 +54,8 @@ def ppm_to_numpy(filename=None, buffer=None, byteorder='>'):

def render_povstring(string, outfile=None, height=None, width=None,
quality=None, antialiasing=None, remove_temp=True,
show_window=False, tempfile=None):
show_window=False, tempfile=None,
use_custom_povray=False):

""" Renders the provided scene description with POV-Ray.

Expand Down Expand Up @@ -94,7 +95,10 @@ def render_povstring(string, outfile=None, height=None, width=None,
if display_in_ipython:
outfile = '__temp_ipython__.png'

cmd = [POVRAY_BINARY, pov_file]
if use_custom_povray!=False and os.path.exists(use_custom_povray):
cmd = [use_custom_povray, pov_file]
else:
cmd = [POVRAY_BINARY, pov_file]
if height is not None: cmd.append('+H%d'%height)
if width is not None: cmd.append('+W%d'%width)
if quality is not None: cmd.append('+Q%d'%quality)
Expand Down
16 changes: 13 additions & 3 deletions vapory/vapory.py
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Original file line number Diff line number Diff line change
@@ -1,6 +1,7 @@
import webbrowser # <= to open the POVRay help
from copy import deepcopy
import re
import os
from .io import render_povstring

from .helpers import WIKIREF, vectorize, format_if_necessary
Expand Down Expand Up @@ -54,7 +55,9 @@ def add_objects(self, objs):

def render(self, outfile=None, height=None, width=None,
quality=None, antialiasing=None, remove_temp=True,
auto_camera_angle=True, show_window=False, tempfile=None):
auto_camera_angle=True, show_window=False,
tempfile=None, evaluate=True,
use_custom_povray=False):

""" Renders the scene to a PNG, a numpy array, or the IPython Notebook.

Expand All @@ -78,8 +81,15 @@ def render(self, outfile=None, height=None, width=None,
if auto_camera_angle and width is not None:
self.camera = self.camera.add_args(['right', [1.0*width/height, 0,0]])

return render_povstring(str(self), outfile, height, width,
quality, antialiasing, remove_temp, show_window, tempfile)
if evaluate:
return render_povstring(str(self), outfile, height, width,
quality, antialiasing, remove_temp,
show_window, tempfile, use_custom_povray)
else:
pov_file = os.path.splitext(outfile)[0] + '.pov'
with open(pov_file, 'w+') as f:
f.write(str(self))
return pov_file


class POVRayElement:
Expand Down