Created
January 6, 2019 22:57
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from pyrr import Quaternion, Matrix33, Matrix44, Vector4,Vector3 | |
import numpy as np | |
from numpy.linalg import inv | |
point = [Vector3([172.62,63.11,-4.02]), | |
Vector3([239.76,-14.55,-5.61]), | |
Vector3([166.59,-80.36,-5.33])] | |
orientation = Quaternion() | |
translation = Vector3() | |
scale = Vector3([0.99,0.99,1.]) | |
# translate along X by 1 | |
translation += [100.66,-6.03,-4.11] | |
# rotate about X by 0.5* | |
rotation = Quaternion.from_x_rotation(-0.0174533) | |
orientation = rotation * orientation | |
# rotate about Y by 0.5* | |
rotation = Quaternion.from_y_rotation(-0.0021816616) | |
orientation = rotation * orientation | |
# rotate about Z by 0.5* | |
rotation = Quaternion.from_z_rotation(0.802851) | |
orientation = rotation * orientation | |
# create a matrix | |
matrix = Matrix44.identity() | |
# apply our translation | |
matrix = matrix * Matrix44.from_translation(translation) | |
# apply our orientation | |
# we can multiply matricies and quaternions directly! | |
matrix = matrix * orientation | |
# apply our scale | |
matrix = matrix * Matrix44.from_scale(scale) | |
matrix = inv(matrix) | |
print(matrix) | |
# transform our point by the matrix | |
# vectors are transformable by matrices and quaternions directly | |
for pt in point: | |
out = matrix * pt | |
out = [int(val) for val in out] | |
print(out) |
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