ArcGIS中求面积或周长

点一下栅格计算器的帮助，会有下面的解法 To calculate area: Dim Output as double Dim pArea as Iarea Set pArea = [shape] Output = pArea.area To calculate length or perimeter (depending on whether the features are lines or polygons): Dim Output as double Dim pCurve as ICurve Set pCurve = [shape] Output = pCurve.Length To add the x coordinate of points: Dim Output As Double Dim pPoint As IPoint Set pPoint = [Shape] Output = pPoint.X To add the x coordinate of polygon centroids: Dim Output As Double Dim pArea As IArea Set pArea = [Shape] Output = pArea.Centroid.X   新建立一个字段，在字段上有一个caculator geometry 在点一下，会看到什么……   导入到GDB中，又会看到什么……   utility下面有一个工具也，看到了吗？