def getJointSizeAndCentre(joints, threshold=0.65, space=SPACE_OBJECT):
'''
minor modification to the getJointSize function in rigging.utils - uses the
child of the joint[ 0 ] (if any exist) to determine the size of the joint in
the axis aiming toward
'''
centre = Vector.Zero(3)
if not isinstance(joints, (list, tuple)):
joints = [joints]
joints = [str(j) for j in joints if j is not None]
if not joints:
return Vector((1, 1, 1))
size, centre = rigUtils.getJointSizeAndCentre(joints, threshold, space)
if size.within(Vector.Zero(3), 1e-2):
while threshold > 1e-2:
threshold *= 0.9
size, centre = rigUtils.getJointSizeAndCentre(joints, threshold)
if size.within(Vector.Zero(3), 1e-2):
size = Vector((1, 1, 1))
children = listRelatives(joints[0], pa=True, type='transform')
if children:
childPos = Vector([0.0, 0.0, 0.0])
childPosMag = childPos.get_magnitude()
for child in children:
curChildPos = Vector(xform(
child, q=True, ws=True, rp=True)) - Vector(
xform(joints[0], q=True, ws=True, rp=True))
curChildPosMag = curChildPos.get_magnitude()
if curChildPosMag > childPosMag:
childPos = curChildPos
childPosMag = curChildPosMag
axis = rigUtils.getObjectAxisInDirection(joints[0], childPos,
DEFAULT_AXIS)
axisValue = getAttr('%s.t%s' % (children[0], axis.asCleanName()))
if space == SPACE_WORLD:
axis = Axis.FromVector(childPos)
size[axis % 3] = abs(axisValue)
centre[axis % 3] = axisValue / 2.0
return size, centre
