blender/source/blender/python/doc/examples/mathutils.py

import mathutils
from math import radians

vec = mathutils.Vector(1.0, 2.0, 3.0)

mat_rot = mathutils.RotationMatrix(radians(90), 4, 'X')
mat_trans = mathutils.TranslationMatrix(vec)

mat = mat_trans * mat_rot
mat.invert()

mat3 = mat.rotation_part()
quat1 = mat.to_quat()
quat2 = mat3.to_quat()

angle = quat1.difference(quat2)

print(angle)
PyAPI - added new mathutils.Color() type, use with rna so we can do for eg: material.diffuse_color.r = 1.0 # also has hsv access material.diffuse_color.s = 0.6 - made Mathutils and Geometry module names lowercase. 2010-04-11 14:22:27 +00:00			`import mathutils`
mathutils.RotationMatrix Angles are in radians. Doc and example should reflect reality 2010-06-23 02:42:39 +00:00			`from math import radians`
Mathutils doc improvements + other small things - bpy.app moved into PyStructSequence (used by sys.float_info) - added buildinfo into bpy.app.build_* - bpy.ui removed (wasnt used) - include external example files in Mathutils docs (only Mathutils and Vector are currently written) - added support to auto document PyStructSequence's - CMake had "'s inside all its strings. 2010-01-31 21:52:26 +00:00
PyAPI - added new mathutils.Color() type, use with rna so we can do for eg: material.diffuse_color.r = 1.0 # also has hsv access material.diffuse_color.s = 0.6 - made Mathutils and Geometry module names lowercase. 2010-04-11 14:22:27 +00:00			`vec = mathutils.Vector(1.0, 2.0, 3.0)`
Mathutils doc improvements + other small things - bpy.app moved into PyStructSequence (used by sys.float_info) - added buildinfo into bpy.app.build_* - bpy.ui removed (wasnt used) - include external example files in Mathutils docs (only Mathutils and Vector are currently written) - added support to auto document PyStructSequence's - CMake had "'s inside all its strings. 2010-01-31 21:52:26 +00:00
mathutils.RotationMatrix Angles are in radians. Doc and example should reflect reality 2010-06-23 02:42:39 +00:00			`mat_rot = mathutils.RotationMatrix(radians(90), 4, 'X')`
PyAPI - added new mathutils.Color() type, use with rna so we can do for eg: material.diffuse_color.r = 1.0 # also has hsv access material.diffuse_color.s = 0.6 - made Mathutils and Geometry module names lowercase. 2010-04-11 14:22:27 +00:00			`mat_trans = mathutils.TranslationMatrix(vec)`
Mathutils doc improvements + other small things - bpy.app moved into PyStructSequence (used by sys.float_info) - added buildinfo into bpy.app.build_* - bpy.ui removed (wasnt used) - include external example files in Mathutils docs (only Mathutils and Vector are currently written) - added support to auto document PyStructSequence's - CMake had "'s inside all its strings. 2010-01-31 21:52:26 +00:00
			`mat = mat_trans * mat_rot`
			`mat.invert()`

			`mat3 = mat.rotation_part()`
			`quat1 = mat.to_quat()`
			`quat2 = mat3.to_quat()`

			`angle = quat1.difference(quat2)`

			`print(angle)`