对于实际测量数据，节理迹线中点并非均匀分布，选择恰当的圆形窗口位置和半径，才能得出合理的结果。

The distribution of the trace midpoint is not uniform, and it is far from being insignificant for reasonable results that position and radius of circular sample window are selected appropriately.

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对滤波窗口的研究表明，自相关半径选择3 ~6个网格节点距为佳。

The study of filtering window shows that it is the best for self-correlation radius in 3 ~ 6 grid node distances.

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在打开的窗口中选择显示模式下拉菜单中的图层(L)，然后开启智能半径选项，将该值调为2.5px。

In the next window choose on Layers (l) from the View drop-down menu, then check the Smart Radius button and set the Radius field to 2.5 px.

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在打开的窗口中选择显示模式下拉菜单中的图层(L)，然后开启智能半径选项，将该值调为2.5px。

In the next window choose on Layers (l) from the View drop-down menu, then check the Smart Radius button and set the Radius field to 2.5 px.

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