# transform_rotation problem (with code and pic)

Hi,
I conducted object rotation using paraview.simple.Transform.rotate function, tested on a cylinder with different angles, and found a possible wrong answer.

In the image above, black is the initial cylinder,
red is rotated by [45, 0,0] , which is correct
green is rotated by [45, 0, 90], which is also correct
blue is rotated by [45, 90, 0], which coincides with red, and I don’t think it is correct.
Does anyone have idea if it is a bug or I was wrong? Any advice or suggestion is appreciated!

Here is a link to refer, and below is part of code that I have used to generate the image above
rotate object given center and degrees

Blockquote
from paraview.simple import *
length = 50
// INITIAL CYLINDER
cylinder = Cylinder(registrationName=‘CylinderInitial’)
cylinder.Resolution = 389
cylinder.Height = length
Show(cylinder)
// INITIAL SPHERE
sphere = Sphere(registrationName=‘SphereInitial’)
sphere.Center = [0,0,0]
Show(sphere)
// BLACK
transform_0 = Transform(Input=cylinder, registrationName= ‘rotate [0, 0, 0]’)
transform_0.Transform.Rotate = [0, 0, 0]
transform_0.UpdatePipeline()
Show(transform_0)
// RED rotation 1
transform_1 = Transform(Input=cylinder, registrationName= ‘rotate [45, 0, 0]’)
transform_1.Transform.Rotate = [45, 0, 0]
transform_1.UpdatePipeline()
Show(transform_1)
// GREEN rotation 2
transform_2 = Transform(Input=cylinder, registrationName= ‘rotate [45, 0, 90]’)
transform_2.Transform.Rotate = [45, 0, 90]
transform_2.UpdatePipeline()
Show(transform_2)
// BLUE rotation 3
transform_3 = Transform(Input=cylinder, registrationName= ‘rotate [45, 90, 0]’)
transform_3.Transform.Rotate = [45, 90, 0]
transform_3.UpdatePipeline()
Show(transform_3)