To find out, issue a spatial data query that reports all cities such that the bounding box of the tsunami line intersects the geographical city center.
为此，发出一个空间数据查询，搜索其中心包含在海啸线内的所有城市。
Line 4 defines the jhuapl.edu_icon node with the attributes of no label, an invisible bounding box, and an image as the appropriate Web-page thumbnail file.
行4定义了一个jhuapl.edu _ icon节点(属性为no label)，一个不可见的边界框，以及一个用作合适的Web页面缩略图文件的图像。
A chopbox anchor just finds the point at which a line intersects the bounding box of the node's figure.
chopbox锚只查找线与节点图形的边框相交的点。
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