2010-04-11 14:22:27 +00:00
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import mathutils
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2011-10-17 02:20:53 +00:00
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import math
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2010-04-11 14:22:27 +00:00
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2011-10-17 02:20:53 +00:00
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# a new rotation 90 degrees about the Y axis
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quat_a = mathutils.Quaternion((0.7071068, 0.0, 0.7071068, 0.0))
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# passing values to Quaternion's directly can be confusing so axis, angle
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# is supported for initializing too
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quat_b = mathutils.Quaternion((0.0, 1.0, 0.0), math.radians(90.0))
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print("Check quaternions match", quat_a == quat_b)
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# like matrices, quaternions can be multiplied to accumulate rotational values
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quat_a = mathutils.Quaternion((0.0, 1.0, 0.0), math.radians(90.0))
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quat_b = mathutils.Quaternion((0.0, 0.0, 1.0), math.radians(45.0))
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quat_out = quat_a * quat_b
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# print the quat, euler degrees for mear mortals and (axis, angle)
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print("Final Rotation:")
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print(quat_out)
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print("%.2f, %.2f, %.2f" % tuple(math.degrees(a) for a in quat_out.to_euler()))
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print("(%.2f, %.2f, %.2f), %.2f" % (quat_out.axis[:] +
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(math.degrees(quat_out.angle), )))
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