Campbell Barton
f776303de1
- disallow setting swizzle's that have duplicate values: vec.xxx = [1,2,3] - raise an error if the list setting a swizzle's longer. - mathutils write callback was running on the wrong vector, which could crash blender.
56 lines
1.0 KiB
Python
56 lines
1.0 KiB
Python
import Mathutils
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# zero length vector
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vec = Mathutils.Vector(0, 0, 1)
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# unit length vector
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vec_a = vec.copy().normalize()
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vec_b = Mathutils.Vector(0, 1, 2)
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vec2d = Mathutils.Vector(1, 2)
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vec3d = Mathutils.Vector([1, 0, 0])
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vec4d = vec_a.copy().resize4D()
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# other mathutuls types
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quat = Mathutils.Quaternion()
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matrix = Mathutils.Matrix()
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# Comparison operators can be done on Vector classes:
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# greater and less then test vector length.
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vec_a > vec_b
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vec_a >= vec_b
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vec_a < vec_b
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vec_a <= vec_b
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# ==, != test vector values e.g. 1,2,3 != 3,2,1 even if they are the same length
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vec_a == vec_b
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vec_a != vec_b
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# Math can be performed on Vector classes
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vec_a + vec_b
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vec_a - vec_b
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vec_a * vec_b
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vec_a * 10.0
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vec_a * matrix
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vec_a * vec_b
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vec_a * quat
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-vec_a
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# You can access a vector object like a sequence
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x = vec_a[0]
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len(vec)
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vec_a[:] = vec_b
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vec2d[:] = vec3d[:2]
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# Vectors support 'swizzle' operations
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# See http://en.wikipedia.org/wiki/Swizzling_(computer_graphics)
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vec.xyz = vec.zyx
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vec.xy = vec4d.zw
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vec.xyz = vec4d.wzz
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vec4d.wxyz = vec.yxyx
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