A RAC-drawing of a graph is a straight-line drawing in which every crossing occurs at a right-angle. We show that deciding whether a graph has a RAC-drawing is as hard as the existential theory of the reals, even if we know that every edge is involved in at most ten crossings and even if the drawing is specified up to isomorphism.

翻译：RAC 绘制图表是一线直线图,每个交叉口都以右角为角。 我们显示,判断一个图表是否带有RAC 拖动与真实存在理论一样困难,即使我们知道每个边缘都涉及最多十个交叉口,即使绘图是指定为无形态主义的。