def process_joint( buffer ):
"""Processes a single joint statement
"""
# split on whitespace
values = buffer.split( None )
# extract values
# "boneName" parentIndex ( xPos yPos zPos ) ( xOrient yOrient zOrient )
name, parent, nil, pos_x, pos_y, pos_z, nil, nil, quat_x, quat_y, quat_z, nil = values
# remove quotes from name
name = name[ 1:-1 ]
# convert to appropriate type
parent = int( parent )
pos_x = float( pos_x )
pos_y = float( pos_y )
pos_z = float( pos_z )
quat_x = float( quat_x )
quat_y = float( quat_y )
quat_z = float( quat_z )
quat_w = compute_quaternion_w( quat_x, quat_y, quat_z )
return (
name,
parent,
(pos_x, pos_y, pos_z),
(quat_x, quat_y, quat_z, quat_w)
)
def process_bone(buffer):
"""Processes a single bone statement
"""
# split on whitespace
values = buffer.split(None)
# extract values
# ( xPos yPos zPos ) ( xOrient yOrient zOrient )
nil, pos_x, pos_y, pos_z, nil, nil, quat_x, quat_y, quat_z, nil = values
# convert to appropriate type
pos_x, pos_y, pos_z = float(pos_x), float(pos_y), float(pos_z)
quat_x, quat_y, quat_z = float(quat_x), float(quat_y), float(quat_z)
# calculate quaternion W value
quat_w = compute_quaternion_w(quat_x, quat_y, quat_z)
return ((pos_x, pos_y, pos_z), (quat_x, quat_y, quat_z, quat_w))
def process_bone(buffer):
"""Processes a single bone statement
"""
# split on whitespace
values = buffer.split(None)
# convert to float
# do this to avoid issues converting None to float
# when we add padding
values = map(float, values)
# extract values
# xPos yPos zPos xOrient yOrient zOrient
# because the values are optional, we need to use
# our tuple extraction routine
values = utils.extract_tuple(values, 6, None)
pos_x, pos_y, pos_z, quat_x, quat_y, quat_z = values
quat_w = None
if quat_x and quat_y and quat_z:
quat_w = compute_quaternion_w(quat_x, quat_y, quat_z)
return ((pos_x, pos_y, pos_z), (quat_x, quat_y, quat_z, quat_w))