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CadQuery：如何修复 cq.Location() 错误: TypeError: Expected three floats, OCC gp_, or 3-tuple

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问题

你正在尝试使用类似以下代码构造 cq.Location 对象

cadquery_fix.py
cq.Location(1, 2, 3)

但运行时你会看到以下错误消息：

cadquery_location_error.txt
File ~\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\cadquery\occ_impl\geom.py:1011, in Location.__init__(self, *args)
   1008 else:
   1009     t, ax, angle = args
   1010     T.SetRotation(
-> 1011         gp_Ax1(Vector().toPnt(), Vector(ax).toDir()), angle * math.pi / 180.0
   1012     )
   1013     T.SetTranslationPart(Vector(t).wrapped)
   1015 self.wrapped = TopLoc_Location(T)

File ~\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages\cadquery\occ_impl\geom.py:91, in Vector.__init__(self, *args)
     89         fV = gp_Vec(args[0])
     90     else:
---> 91         raise TypeError("Expected three floats, OCC gp_, or 3-tuple")
     92 elif len(args) == 0:
     93     fV = gp_Vec(0, 0, 0)

TypeError: Expected three floats, OCC gp_, or 3-tuple

解决方案

不要向 cq.Location() 传递三个单独的参数 - 通过添加额外的括号传递包含三个数字的元组：

cadquery_fix.py
cq.Location((1, 2, 3))
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