在ARCGIS属性表中增加需要的字段，并自动赋值

在ARCGIS属性表中增加需要的字段，并自动赋值

 

在ARCGIS属性表中增加需要的字段，并自动赋值

使用方法 1打开属性表,选择计算的字段,右点选择Calculate Values；2.选择“是”，进入Field Calculator； 2选择Advance选项； 3 在Pre-Logic VBA Script Code编辑框中输入VBA代码； 4在下面编辑框中输入赋值部分. 1--点坐标X VBA部分: Dim pGeo As IGeometry Set pGeo = [Shape] Dim pPoint As IPoint Set pPoint = pGeo 赋值部分: pPoint.X 2--点坐标Y VBA部分: 同上 赋值部分: pPoint.Y 坐标值为文件存储的固有值,和是否使用On the Fly坐标表示无关。返回当前显示的坐标值参看8,9 3--多边形周长 VBA部分: Dim pGeo As IGeometry Set pGeo = [Shape] Dim pPolygon As IPolygon Set pPolygon = pGeo 赋值部分: pPolygon.Length 4--多边形面积 VBA部分: Dim pGeo As IGeometry Set pGeo = [Shape] Dim pPolygon As IPolygon Set pPolygon = pGeo Dim pArea As IArea Set pArea = pPolygon 赋值部分: pArea.Area 5--多边形重心X VBA部分: Dim pGeo As IGeometry Set pGeo = [Shape] Dim pPolygon As IPolygon Set pPolygon = pGeo Dim pArea As IArea Set pArea = pPolygon Dim pPoint As IPoint Set pPoint = pArea.Centroid 赋值部分: pPoint.X 6--多边形重心Y VBA部分: 同上 赋值部分: pPoint.Y 7--Polyline长度 VBA部分: Dim pGeo As IGeometry Set pGeo = [Shape] Dim pPolyline As IPolyline Set pPolyline = pGeo Dim pCurve As IPolycurve Set pCurve = pPolyline 赋值部分: pCurve.Length 8--表示点坐标X VBA部分: Dim pDoc As IMxDocument Set pDoc = ThisDocument Dim pSpRef As ISpatialReference Set pSpRef = pDoc.FocusMap.SpatialReference Dim pClone As IClone Set pClone = [Shape] Dim pGeo As IGeometry Set pGeo = pClone.Clone Dim pPoint as IPoint Set pPoint = pGeo pGeo.Project pSpRef 赋值部分: pPoint.X 9--表示点坐标Y VBA部分: 同上 赋值部分: pPoint.Y 坐标值为On the Fly显示的坐标,不是文件存储的固有坐标 10--连续编号 VBA部分: Static lCount as long lCount=lCount+1 赋值部分: lCount (从1开始) lCount-1 (从0开始)

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