Blender：如何从python脚本移动相机

Question

Here is an answer . But the answer uses euler angles instead of setting the i,j,k base coordinates in the cam's model matrix. I'd like to set the camera's orientation by its i,j,k coordinates (these are the coordinates in the model matrix which sets the object's orientation and scaling). What is the Blender python API for doing it?

Answer 1

Blender's mathutils module is used to work with matrices. To transform any object using a matrix you set the objects matrix_world property.

import bpy
import mathutils
import math

mat_loc = mathutils.Matrix.Translation((2.0, 3.0, 4.0))
mat_sca = mathutils.Matrix.Scale(0.5, 4, (0.0, 0.0, 1.0))
mat_rot = mathutils.Matrix.Rotation(math.radians(45.0), 4, 'X')
mat_comb = mat_loc * mat_rot * mat_sca

cam = bpy.data.objects['Camera']
cam.matrix_world = mat_comb