    relationOps = {0 : [self.existsOne, self.judgeIntersects],
                   1 : [self.existsOne, self.judgeContains],
                   2 : [self.everyNot, self.judgeDisjoint],
                   3 : [self.existsOne, self.judgeEquals],
                   4 : [self.existsOne, self.judgeTouches],
                   5 : [self.existsOne, self.judgeOverlaps],
                   6 : [self.existsOne, self.judgeWithin],
                   7 : [self.existsOne, self.judgeCrosses]
                   }[relationIndex]
