GIS帝国论坛---地理信息系统帝国-Safe S... ... Bufferer Replaces the geometry of the feature with a area feature (polygon or donut polygon) that buffers the original feature (or a line feature that is some distance away from the original feature). 改为缓冲区（多边形或环状多边形），或者缓冲区左侧和/或右侧的边界线 CaseChanger Changes the case of the value contained in the source attribute and stores the resulting character string in the result attribute. 改变输入属性值的大小写并写入输出属性 CenterLineReplacer Replaces the geometry of an area feature with a line that threads through the center of the feature. Only works well with long, thin features. 改为面状要素的中心线。适用于细长型要素 ...

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