blendercam/scripts/addons/cam/backgroundop.py_

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# blender CAM utils.py (c) 2012 Vilem Novak
#
# ***** BEGIN GPL LICENSE BLOCK *****
#
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# ***** END GPL LICENCE BLOCK *****
import bpy, os,pickle,time
import sys # to get command line args
import argparse # to parse options for us and print a nice help message
def getCachePath(o):
fn=bpy.data.filepath
l=len(bpy.path.basename(fn))
bn=bpy.path.basename(fn)[:-6]
try:
os.mkdir(fn[:-l]+'temp_cam')
except:
pass;
iname=fn[:-l]+'temp_cam'+os.sep+bn+'_'+o.name
return iname
def calculatePath(op):
s=bpy.context.scene
o=s.cam_operations[op]
s.cam_active_operation=op
bpy.ops.object.calculate_cam_path()
p=getCachePath(o)+'.blend'
picklepath=getCachePath(o)+'.pickle'
f=open(picklepath,'wb')
d={}
d['duration']=o.info.duration
d['warnings']=o.info.warnings
#pickle path...
oname="cam_path_"+o.name
if oname in s.objects:
mesh=s.objects[oname].data
verts=[]
for v in mesh.vertices:
verts.append((v.co.x,v.co.y,v.co.z))
d['path']=verts
pickle.dump(d,f)
f.close()
#bpy.ops.wm.save_mainfile(filepath=p)
#f=open(picklepath,'wb')
passed=False
while not passed:
try:
f=open(picklepath,'rb')
d=pickle.load(f)
f.close()
passed=True
except:
print('sleep')
time.sleep(1)
sys.stdout.write('progress{%s}\n' % ('finished'))
sys.stdout.flush()
#parse arguments here
argv = sys.argv
if "--" not in argv:
argv = [] # as if no args are passed
else:
argv = argv[argv.index("--") + 1:] # get all args after "--"
# When --help or no args are given, print this help
usage_text = \
"Run blender in background mode with this script:"
" blender --background --python " + __file__ + " -- [options]"
parser = argparse.ArgumentParser(description=usage_text)
# Example utility, add some text and renders or saves it (with options)
# Possible types are: string, int, long, choice, float and complex.
parser.add_argument("-o", "--operation", dest="op", type=int, required=True,
help="Index of the operation to calculate")
'''
parser.add_argument("-s", "--save", dest="save_path", metavar='FILE',
help="Save the generated file to the specified path")
parser.add_argument("-r", "--render", dest="render_path", metavar='FILE',
help="Render an image to the specified path")
'''
args = parser.parse_args(argv)
calculatePath(args.op)