def get_chain_length(ve, orientation):
"""Returns the 2d length of a given ViewEdge."""
from freestyle.chainingiterators import pyChainSilhouetteGenericIterator
length = 0.0
# setup iterator
_it = pyChainSilhouetteGenericIterator(False, False)
_it.begin = ve
_it.current_edge = ve
_it.orientation = orientation
_it.init()
# run iterator till end of chain
while not (_it.is_end):
length += _it.object.length_2d
if (_it.is_begin):
# _it has looped back to the beginning;
# break to prevent infinite loop
break
_it.increment()
# reset iterator
_it.begin = ve
_it.current_edge = ve
_it.orientation = orientation
# run iterator till begin of chain
if not _it.is_begin:
_it.decrement()
while not (_it.is_end or _it.is_begin):
length += _it.object.length_2d
_it.decrement()
return length
def get_chain_length(ve, orientation):
"""Returns the 2d length of a given ViewEdge."""
from freestyle.chainingiterators import pyChainSilhouetteGenericIterator
length = 0.0
# setup iterator
_it = pyChainSilhouetteGenericIterator(False, False)
_it.begin = ve
_it.current_edge = ve
_it.orientation = orientation
_it.init()
# run iterator till end of chain
while not (_it.is_end):
length += _it.object.length_2d
if (_it.is_begin):
# _it has looped back to the beginning;
# break to prevent infinite loop
break
_it.increment()
# reset iterator
_it.begin = ve
_it.current_edge = ve
_it.orientation = orientation
# run iterator till begin of chain
if not _it.is_begin:
_it.decrement()
while not (_it.is_end or _it.is_begin):
length += _it.object.length_2d
_it.decrement()
return length
