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求问大神，已经按照用户手册上操作cavity算例，在制作矢量图时，箭头看不到，如果调整scale factor,则上方的箭头太大，怎么调整？另外如何让他显示边界上的速度矢量
有一个scale，里面有一个off选项，你选中off
@李东岳 已经解决，多谢李老师
