arcpy 移动要素，取得当前选中要素的图层

最新推荐文章于 2023-12-15 11:29:04 发布

codedecipher

最新推荐文章于 2023-12-15 11:29:04 发布

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分类专栏： arcpy gis 文章标签： python

本文链接：https://blog.youkuaiyun.com/codedecipher/article/details/119858156

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这篇博客展示了如何使用Python的arcpy模块进行GIS数据处理。内容包括设置工作空间，执行统计分析，通过计算字段对要素进行分类，并实现要素的位置移动。还涉及了在ArcGIS环境中遍历图层并获取当前选中要素的方法。

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#!/usr/bin/python
# -*- coding: UTF-8 -*-


# Name: CalculateField_ranges.py
# Import system modules
import arcpy
 
# Set environment settings
arcpy.env.workspace = "C:\\Users\\Administrator\\Desktop\\gendi"

# Set local variables
inTable = "polygons"
fieldName = "areas"
expression = "getClass(!areas!,!bound!)"

out_table = "sumtable2"
statsFields = [["area", "SUM"]]
case_field = ["bound","type"]

codeblock = """
def getClass(areas,bound):
    if bound == "bound1":
        return 1
    else:
        return 2
  
 """
 
with arcpy.da.SearchCursor(inTable,fieldName) as cursor: 
    for row in cursor: 
        print(row[])


 
# Execute AddField
#arcpy.AddField_management(inTable, fieldName, "SHORT")
#arcpy.Delete_management(out_table)
arcpy.Statistics_analysis (inTable, out_table, statsFields, case_field)

# Execute CalculateField 
arcpy.CalculateField_management(inTable, fieldName, expression, "PYTHON_9.3",codeblock)

移动要素

import arcpy

mxd = arcpy.mapping.MapDocument("CURRENT")
layer = arcpy.mapping.ListLayers(mxd)[0]

#layer = arcpy.ListFeatureClasses()

print(layer)
#sel = layer.getSelectionSet()
#print(sel)

with arcpy.da.UpdateCursor(layer,["SHAPE@XY"]) as cursor:
	#print("1111111")
	for row in cursor:
		print(row)
		cursor.updateRow([[row[0][0] + 80,row[0][1] - 70]])
		
#execfile("C:\\Users\\Administrator\\Desktop\\MOVE.py")

execfile("C:\\Users\\Administrator\\Desktop\\test.py"

遍历所图层取得，当前选中要素的图层

mxd = arcpy.mapping.MapDocument("CURRENT")

lyrs = arcpy.mapping.ListLayers(mxd)
for lyr in lyrs:
	if lyr.getSelectionSet():
		#print("{}: {}".format(lyr.name, lyr.getSelectionSet()))
		layer = lyr.name