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@@ -150,7 +150,7 @@ class Cut(ElemOperator):
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self.l = l
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self.r = r
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if (self.l is not None and self.l <= 0) or (self.r is not None and self.r >= 0):
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raise ValueError("Cut operator l shoud > 0 and r should < 0")
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raise ValueError("Cut operator l should > 0 and r should < 0")
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super(Cut, self).__init__(feature)
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