ArcEingine——IRelationalOperator的Crosses与Overlaps

Crosses试用于判断线的相交，对面相交判读是没效果的。

Overlaps试用于判断面重叠。

从上面两句话我们也可以看出，对于面，一般是考虑重叠而不是相交。

此外，因注意ITopologicalOperator接口和IRelationalOperator接口，两者相似，初学者往往会混淆。前者是用于空间拓扑运算，后者用于空间关系运算。

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ArcEingine——IRelationalOperator的Crosses与Overlaps

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