Ok here is my first wokring vertion of the script.
It writes the position of each joint at each frame into a txt file.
Also you can get the hole blend file here( rev 10…blend):
Thanks for your help Everyone
further develpment will be in this form
http://sktechworks.ca/forum/viewtopic.php?f=10&t=456&p=2853#p2853
import bpy
from mathutils import Matrix, Vector
from math import acos, degrees
#########################################
“Visual Transform” helper functions
#########################################
def get_pose_matrix_in_other_space(mat, pose_bone):
“”" Returns the transform matrix relative to pose_bone’s current
transform space. In other words, presuming that mat is in
armature space, slapping the returned matrix onto pose_bone
should give it the armature-space transforms of mat.
TODO: try to handle cases with axis-scaled parents better.
“”"
rest = pose_bone.bone.matrix_local.copy()
rest_inv = rest.inverted()
if pose_bone.parent:
par_mat = pose_bone.parent.matrix.copy()
par_inv = par_mat.inverted()
par_rest = pose_bone.parent.bone.matrix_local.copy()
else:
par_mat = Matrix()
par_inv = Matrix()
par_rest = Matrix()
# Get matrix in bone's current transform space smat = rest_inv * (par_rest * (par_inv * mat))
# Compensate for non-local location #if not pose_bone.bone.use_local_location: # loc = smat.to_translation() * (par_rest.inverted() * rest).to_quaternion() # smat.translation = loc
return smat
def get_local_pose_matrix(pose_bone):
“”" Returns the local transform matrix of the given pose bone.
“”"
return get_pose_matrix_in_other_space(pose_bone.matrix, pose_bone)
def frame(f):
bpy.data.scenes[0].frame_set(f)
bpy.data.scenes[0].update()
def get_bones_rotation(armature,bone,axis):
mat = get_local_pose_matrix(bpy.data.objects[armature].pose.bones[bone]) if axis == 'z': return degrees(mat.to_euler().z) elif axis == 'y': return degrees(mat.to_euler().y) elif axis == 'x': return degrees(mat.to_euler().x)
Start = bpy.data.scenes[‘Scene’].frame_start
End = bpy.data.scenes[‘Scene’].frame_end
############################################################## main program setup
frame(1) # set the frame to 1
frame(Start)
log = open(‘leg.txt’,‘wt’)
log.write('frameA----Aservo1(hip)B----Bservo2(knee)C----Cservo3(ankle)
')
for q in range(Start, End): #####################3###################### main program loop
frame(q) servo1 = get_bones_rotation('Arm','Bone','z') servo2 = get_bones_rotation('Arm','Bone.001','x') servo3 = get_bones_rotation('Arm','Bone.002','x') log.write(str(q)) log.write('A----A') log.write(str(servo1)) log.write('B----B') log.write(str(servo2)) log.write('C----C') log.write(str(servo3)) log.write('')
print(q,"----",servo1,servo2,servo3)log.close()