def PiScale(*args):
if len(args) > 0 and type(args[0]) == list:
vec = args[0]
x = float(vec[0])
y = float(vec[1])
z = float(vec[2])
elif len(args) > 0 and args[0].__class__.__name__ == "PtVector":
vec = args[0]
x = vec.x
y = vec.y
z = vec.z
elif len(args) == 0:
x = 1.
y = 1.
z = 1.
else:
raise PtCommon.PtTypeError("PiScale requires a list or a PtVector")
m = PtMatrix([x, 0., 0., 0., 0., y, 0., 0., 0., 0., z, 0., 0., 0., 0., 1.])
#mi = PtMatrix([1./x,0.,0.,0.,
# 0.,1./y,0.,0.,
# 0.,0.,1./z,0.,
# 0.,0.,0.,1.])
#t = PtTransform()
#t.m = m
#t.mInv =mi
return m
def PiTranslate(*args):
if len(args) > 0 and type(args[0]) == list:
vec = args[0]
x = float(vec[0])
y = float(vec[1])
z = float(vec[2])
elif len(args) and args[0].__class__.__name__ in ["PtVector", 'PtPoint']:
vec = args[0]
x = vec.x
y = vec.y
z = vec.z
elif len(args) == 0:
x = 0.
y = 0.
z = 0.
else:
raise PtCommon.PtTypeError("PiTranslate requires a list or a PtVector")
l = [1., 0., 0., x, 0., 1., 0., y, 0., 0., 1., z, 0., 0., 0., 1.]
mat = PtMatrix(l)
return mat