任務說明：需要對地圖文件進行要素轉面，繪制緩沖區，最后面轉線，需要處理的文件有一百多個，手工處理費時費力，寫一個腳本，批量自動轉換

import os

import time

import arcpy

from arcpy import env

readme = '''批量繪制三級防御圈v1.0.1'''

'''

運行環境ArcGis10.7，python版本2.7

'''

# 要素轉面

def l2a(fn_in, fn_out):

if os.path.exists(('%s.shp' % fn_out).decode('utf-8')):

print('find:%s.shp' % fn_out)

return

if not fn_in.endswith('.shp'):

fn_in += '.shp'

arcpy.FeatureToPolygon_management(fn_in, fn_out, "", "NO_ATTRIBUTES", "")

# 繪制緩沖區 單位：千米 Kilometers

def zoom(fn_in, fn_out, i_zoom):

if os.path.exists(('%s.shp' % fn_out).decode('utf-8')):

print('find:%s' % fn_out)

return

if not fn_in.endswith('.shp'):

fn_in += '.shp'

# 緩沖區工具速度快，但無法合并重疊區域

# arcpy.Buffer_analysis(fn_in, fn_out, "%s Kilometers" % i_zoom, "FULL", "ROUND", "ALL", "Distance")

# 多環緩沖區工具速度慢，但可以合并重疊區域

arcpy.MultipleRingBuffer_analysis(fn_in, fn_out, [i_zoom], "Kilometers", "", "ALL")

# 面轉線

def a2l(fn_in, fn_out):

if os.path.exists(('%s.shp' % fn_out).decode('utf-8')):

print('find:%s' % fn_out)

return

if not fn_in.endswith('.shp'):

fn_in += '.shp'

arcpy.PolygonToLine_management(fn_in, fn_out, "IGNORE_NEIGHBORS")

# 按照放大距離繪制緩沖區，單位千米

def task(fn_in, i_zoom):

print("input:%s" % fn_in)

i_t = time.time()

d1, f1 = os.path.split(fn_in)

fn_area = '%s/%s' % (d1, f1.replace('.shp', '_temp'))

l2a(fn_in, fn_area)

print('used:%-10.3f save:%s' % (time.time() - i_t, fn_area))

i_t = time.time()

fn_area_zoom = '%s/%s' % (d1, f1.replace('.shp', '_temp_%skm' % i_zoom))

zoom(fn_area, fn_area_zoom, i_zoom)

print('used:%-10.3f save:%s' % (time.time() - i_t, fn_area_zoom))

i_t = time.time()

fn_line_zoom = '%s/%s' % (d1, f1.replace('.shp', '_%skm' % i_zoom))

a2l(fn_area_zoom, fn_line_zoom)

print('used:%-10.3f save:%s' % (time.time() - i_t, fn_line_zoom))

# 遍歷目錄，批量處理線圖.shp文件

def check_dir(dir):

ls = os.listdir(dir.decode('utf-8'))

for l in ls:

# print(l)

dir2 = '%s/%s' % (dir, l.encode('utf-8'))

# print(dir2)

if os.path.isdir(dir2.decode('utf-8')):

check_dir(dir2)

if os.path.isfile(dir2.decode('utf-8')):

if not dir2.endswith('.shp'):

continue

ls_skip = ['各縣線圖', '各城區線圖', '青海縣邊界線圖', '青海各市邊界線圖']

if dir2.endswith('線圖.shp') or ('西寧四區' in dir2 and dir2.endswith('區.shp')):

b_skip = False

for l_skip in ls_skip:

if l_skip in dir2:

b_skip = True

break

if not b_skip:

print(dir2)

fn_in = dir2

task(fn_in, 50)

task(fn_in, 100)

# 批量執行

def auto():

dir = 'D:/arcgisfile_青海/線圖'

check_dir(dir)

# 執行單個測試任務

def test():

dir = "D:/Program/Tem_Python/0010.WebConfig_py/0240.arcgis_shp2json/0003.src_arcgis/data"

fn_in = '%s/xx縣級線圖.shp' % dir

task(fn_in, 50)

task(fn_in, 100)

if __name__ == '__main__':

# test()

auto()

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