(二十五)arcpy开发&实现对面和线要素端点的统计
这个例子是学习使用arcpy来统计面要素和线要素的个数,以及顶点(端点)个数的。利用到pointCount以及令牌方面的知识。首先还是对要素进行了遍历,然后统计相应的顶点数。下面我们来看一下实现代码。
#coding=utf-8
import arcpy
def getVertCount(featureclass):
desc = arcpy.Describe(featureclass)
if desc.shapeType == "Polygon" or desc.shapeType == "Line":
numberrecords = int(arcpy.GetCount_management(featureclass).getOutput(0))
with arcpy.da.SearchCursor(featureclass, "SHAPE@") as cursor:
totVert = 0
for row in cursor:
totVert += row[0].pointCount
return numberrecords, totVert
input_fc = 'D:/Data/中国国界和省界的SHP格式数据/省界/bou2_4p.shp'
counts = getVertCount(input_fc)
if counts is not None:
arcpy.AddMessage('\n# Total number of records: {}'.format('{0:,}'.format(counts[0])))
arcpy.AddMessage('\n# Total number of vertices: {}\n'.format('{0:,}'.format(counts[1])))
else:
arcpy.AddMessage('\n# Not a polygon or line\n')
以及最终的运行效果。
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转载自:https://blog.csdn.net/u010608964/article/details/88368384