ArcGIS数据处理小技巧一——字段值为另外两字段对比(相等为1,否则为0)
如图所示:如果a字段和b字段值相等,则c的值为1,否则为0:
![](http://pic.ikafan.com/imgp/L3Byb3h5L2h0dHBzL2ltYWdlMTA5LjM2MGRvYy5jbi9Eb3dubG9hZEltZy8yMDIwLzEwLzMxMDkvMjA2MDQxMTU0XzFfMjAyMDEwMzEwOTQ2MzEyMTIuanBn.jpg)
方法一:
打开属性表,右键选择Field Calculator
![](http://pic.ikafan.com/imgp/L3Byb3h5L2h0dHBzL2ltYWdlMTA5LjM2MGRvYy5jbi9Eb3dubG9hZEltZy8yMDIwLzEwLzMxMDkvMjA2MDQxMTU0XzJfMjAyMDEwMzEwOTQ2MzE3MTIuanBn.jpg)
写如下脚本:
![](http://pic.ikafan.com/imgp/L3Byb3h5L2h0dHBzL2ltYWdlMTA5LjM2MGRvYy5jbi9Eb3dubG9hZEltZy8yMDIwLzEwLzMxMDkvMjA2MDQxMTU0XzNfMjAyMDEwMzEwOTQ2MzI3Mi5qcGc=.jpg)
Ok即可。也可点击Load将脚本保存起来,下次使用。
方法二:
打开'Slect By Attribute'窗体,给出条件a=b,选出a=b的记录:
![](http://pic.ikafan.com/imgp/L3Byb3h5L2h0dHBzL2ltYWdlMTA5LjM2MGRvYy5jbi9Eb3dubG9hZEltZy8yMDIwLzEwLzMxMDkvMjA2MDQxMTU0XzRfMjAyMDEwMzEwOTQ2MzI0NjIuanBn.jpg)
再打开属性表,同样右键c字段,打开Field Calculator,c=1
![](http://n4.ikafan.com/assetsj/blank.gif)
然后点击属性表的反选工具,c值设为0
![](http://n4.ikafan.com/assetsj/blank.gif)
完成。
转载于:https://www.cnblogs.com/esrichina/archive/2012/11/08/2760723.html
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