使用python讀取txt坐標文件生成挖空礦山_探礦批量
阿新 • • 發佈：2019-01-28
http height 1.7 txt 空行 工作空間 ise 是否 mage # -*-coding:utf-8-*-
import arcpy
import fileinput
import os
# 探礦權坐標格式舉例
# 111.0846,31.1530
# 111.1002,31.1530
# 111.1002,31.1500
# 111.1027,31.1500
# 111.1027,31.1344
# 111.1127,31.1344
# 111.1127,31.1300
# 111.1157,31.1300
# 111.1157,31.1225
# 111.0942,31.1225
# 111.0942,31.1400
# 111.0927,31.1400
# 111.0927,31.1500
# 111.0846,31.1500
# 0,0
# 生成的shp圖形存放目錄
arcpy.env.workspace = r"F:\shp"
fc = "tk.shp"
# 如果工作空間下不存在該FeatureClass，那麽新建FeatureClass
isexist = arcpy.Exists(fc)
if not isexist:
print fc + " 要素類不存在！"
exit()
# 創建插入遊標，txt坐標文件名稱就是項目名稱
# cursor = arcpy.da.InsertCursor(fc, ["XMMC", "DKID", "DKMC", "MJ", "SHAPE@"])
cursor = arcpy.da.InsertCursor(fc, ["XMMC", "SHAPE@"])
# 遍歷所有坐標文件
dirpath = r"F:\2018tk\\"
txtlist = os.listdir(dirpath)
txtname = ""
try:
# 遍歷文件夾目錄下所有的txt文件
for txtpath in txtlist:
txtname = txtpath.split(".")[0]
txt = fileinput.input(dirpath + txtpath)
rowstr = txt.readline()
fieldlist = []
# 外圈坐標，即外圈礦山
_xypolylist = []
# 挖空坐標，即挖空礦山
_wkpolylist = []
# 臨時坐標
_tempxylist = arcpy.Array()
# 坐標點的編號
bh = 0
# 遍歷單個txt坐標文件的坐標值
print txtname.decode("gbk")
while rowstr:
# 如果出現空行，則直接跳過
if rowstr.strip() == "" or rowstr.strip() == r"\n":
rowstr = txt.readline()
continue
fieldlist = rowstr.split(",")
# 如果以0,0或者-1,0開頭，標明該行是一個礦山（外圈或者內圈）結束
if rowstr.replace("\n", "") == "0,0":
_xytemppolygon = arcpy.Polygon(_tempxylist)
_xypolylist.append(_xytemppolygon)
_tempxylist.removeAll()
print rowstr.replace("\n", "") # 一行末尾有換行符
rowstr = txt.readline()
bh = 0
continue
# 挖空礦山的標識是-1
elif rowstr.replace("\n", "") == "-1,0":
_wktemppolygon = arcpy.Polygon(_tempxylist)
_wkpolylist.append(_wktemppolygon)
_tempxylist.removeAll()
print rowstr.replace("\n", "") # 一行末尾有換行符
rowstr = txt.readline()
bh = 0
continue
# 讀取坐標值
pnt = arcpy.Point()
# 依次為坐標點編號、縱坐標、橫坐標
bh = bh + 1
x = fieldlist[0].format("000.0000")
y = fieldlist[1].replace("\n", "").format("00.0000")
degrex = x[0:3]
minix = x[4:6]
secdx = x[6:8]
degrey = y[0:2]
miniy = y[3:5]
secdy = y[5:7]
_x = ("%.3f" % (float(degrex) + float(minix) / 60 + float(secdx) / 3600))
_y = ("%.3f" % (float(degrey) + float(miniy) / 60 + float(secdy) / 3600))
pnt.ID = bh
pnt.X = _x
pnt.Y = _y
_tempxylist.append(pnt)
print "第{0}個坐標是：{1},{2}".format(bh, _x, _y)
rowstr = txt.readline()
xypolynum = len(_xypolylist)
wkpolynum = len(_wkpolylist)
# 如果外圈礦山只有1個，挖空礦山1個或者多個，則執行裁剪，即交集取反
if xypolynum == 1 and wkpolynum >= 1:
poly = _xypolylist[0]
for j in range(wkpolynum):
poly = poly.symmetricDifference(_wkpolylist[j])
cursor.insertRow([txtname, poly])
print txtname.decode("gbk") + " is finished!"
continue
# 對於多個外圈礦山，1個或者多個挖空礦山，無法判斷對哪個外圈礦山挖空
if xypolynum > 1 and wkpolynum >= 1:
print (txtname + "，無法判斷挖空礦山！")
continue
# 遍歷形成外圈地塊
for i in range(xypolynum):
cursor.insertRow([txtname, _xypolylist[i]])
print txtname.decode("gbk") + " is finished!"
except Exception as err:
# print (err.args[0]).decode("gbk")
print "請檢查坐標格式是否正確，或者坐標存在自相交！"
else:
print "全部生成！"
del cursor
效果如下：
使用python讀取txt坐標文件生成挖空礦山_探礦批量