Update：2024/11/14
1. New added：Version choose 2. Correct：The format fault of convert
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# @ File : rnx_convert.py
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#
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# Copyright (c) 2024 - 2024 KenanZhu. All Right Reserved.
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#
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# @ Author : KenanZhu
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# @ Time : 2024/11/13
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# @ Brief :
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# :
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# @ IDE : PyCharm
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#
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# ----------------------------------------------------------------------------------------
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import re
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import time
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import math
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import threading
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bnk=' '
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def conv_time():
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# Get the locate time and transform to RINEX format
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y=time.localtime().tm_year
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m=time.localtime().tm_mon
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d=time.localtime().tm_mday
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h=time.localtime().tm_hour
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min=time.localtime().tm_min
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sec=time.localtime().tm_sec
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localtime=str(y)+str(m)+str(d)+bnk+"%02d"%h+"%02d"%min+"%02d"%sec+bnk+"LLC"+bnk
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outline=('KNZ_Convert ver1.2.1'+20*bnk+
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'%s'%localtime+
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'COV-PGM / DATE\n')
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return outline
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# =======================================================================================
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# Convert observ type of RINEX 2.xx to others
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# =======================================================================================
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def obsfmt_conv(obstype):
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match obstype[1:2]:
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case '1':
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if obstype[0:1]=='P':
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obstype='C1P'
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else:
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obstype+='C'
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case '2':
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if obstype[0:1]=='P':
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obstype='C2P'
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else:
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obstype+='C'
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case '3': pass
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case '4': pass
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case '5': obstype+='I'
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case '6': obstype+='C'
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case '7': obstype+='I'
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case '8': obstype+='I'
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return obstype
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# =======================================================================================
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# Convert Format
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# =======================================================================================
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def datefmt_conv(inline):
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hou = inline[49:51]
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min = inline[52:54]
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sec = inline[55:57]
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return (inline[0:49] +
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hou +
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min +
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sec +
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bnk + "UTC" +
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bnk + "PGM / RUN BY / DATE\n")
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# =======================================================================================
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# Convert observ msg of RINEX 2.xx to others
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# =======================================================================================
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def obstype_conv(inline, in_f):
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outlines=[]
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obstypes=[]
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system=['G', 'R', 'E', 'S']
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obsnum=int(inline[0:6])
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for i in range(math.ceil(obsnum/9)):
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obstypes.extend(inline[6:60].split())
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if i+1==math.ceil(obsnum/9): break
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inline = in_f.readline()
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for i in range(len(obstypes)):
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obstypes[i]=obsfmt_conv(obstypes[i])
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for sys in system:
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outline=sys+3*bnk+'%2d'%len(obstypes) + bnk
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for i in range(len(obstypes)):
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outline+=obstypes[i] + bnk
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if (i+1)%13==0:
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outlines.append(
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outline+bnk+'SYS / # / OBS TYPES\n')
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outline = 7*bnk
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elif (i+1)==obsnum:
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outlines.append(
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outline + ( (13-len(obstypes))%13*4 + 1)*bnk + 'SYS / # / OBS TYPES\n')
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return outlines
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# =======================================================================================
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# Convert obs of RINEX 2.xx to others
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# =======================================================================================
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def rnx2uni_head_bxx(in_path, out_path, oriver, desver):
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try:
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with open(in_path, 'r'): pass
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except FileNotFoundError:
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return -12
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outlines=[]
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in_f=open(in_path, 'r')
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while True:
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inline=in_f.readline()
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if not inline: return 0
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if inline.find('COMMENT')>=0:
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outlines.append(inline)
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elif inline.find('RINEX VERSION / TYPE')>=0:
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if not inline.find('OBSERVATION DATA')>=0:
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return -10
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if not float(inline[5: 9])<3: return -10
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outlines.append(
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5*bnk+'%s->%s'%(str(oriver),str(desver))+
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1*bnk+'COV-OBSERVATION DATA'+
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24*bnk+'COV-RINEX VER / TYPE\n')
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outlines.append(conv_time())
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outlines.append(inline.replace(
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'%s'%re.search(r'[1-9]\d*.\d*|0\.\d*[1-9]\d*', inline).group(),
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desver))
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elif inline.find('PGM / RUN BY / DATE')>=0:
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outlines.append(datefmt_conv(inline))
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elif inline.find('# / TYPES OF OBSERV')>=0:
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outlines.extend(obstype_conv(inline, in_f))
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elif inline.find("WAVELENGTH FACT L1/2")>=0: pass
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elif inline.find("END OF HEADER")>=0:
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outlines.append(inline)
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break
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else: outlines.append(inline)
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try:
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with open(out_path, 'w'): pass
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except PermissionError:
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return -11
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out_f=open(out_path, 'a')
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out_f.writelines(outlines)
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out_f.close()
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return 1
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# =======================================================================================
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# Convert head_data of RINEX 3.xx to Uni-format
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# =======================================================================================
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def data2uni_bxx(inline, obsnum, in_f):
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sPRN=[]
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outlines=[]
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count_er=0
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year = int(inline[0 :3])
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month = int(inline[0+3 :3+3])
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day = int(inline[0+3+3 :3+3+3])
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hour = int(inline[0+3+3+3 :3+3+3+3])
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minute= int(inline[0+3+3+3+3 :3+3+3+3+3])
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second=float(inline[0+3+3+3+3+3 :3+3+3+3+3+11])
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e_flag= int(inline[0+3+3+3+3+3+11 :3+3+3+3+3+11+3])
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satnum= int(inline[0+3+3+3+3+3+11+3:3+3+3+3+3+11+3+3])
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outlines.append(
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"> %4d %02d %02d %02d %02d %10.7f %2d %2d\n" \
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% (year + 2000, month, day, hour, minute, second, e_flag, satnum))
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for i in range(math.ceil(satnum/12)):
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if not i==0: inline = in_f.readline()
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if i+1<math.ceil(satnum/12): count_er=12
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if i+1==math.ceil(satnum/12): count_er=satnum-i*12
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for j in range(count_er):
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sPRN.append(inline[32+3*j : 32+3*(j+1)].replace(bnk, "0"))
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for i in range(satnum):
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outline=''
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if obsnum <= 5:
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inline=in_f.readline()
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outline+=inline.replace("\n","").replace("\r","")
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elif obsnum > 5:
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for j in range(math.ceil(obsnum/5)):
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inline=in_f.readline()
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outline+=inline.replace("\n","").replace("\r","")
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if len(outline)%16==15: outline+=bnk
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if len(outline)%16==14: outline+=2*bnk
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outline+=(5 - int(len(outline)/16))*16*bnk
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outlines.append(sPRN[i] + outline + "\n")
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return outlines
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# =======================================================================================
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# Convert Uni-format to RINEX 3.xx
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# =======================================================================================
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def uni2data_cxx(outlines, out_path):
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out_f = open(out_path, 'a')
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out_f.writelines(outlines)
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out_f.close()
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# =======================================================================================
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# Convert data of RINEX 3.xx to Uni-format
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# =======================================================================================
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def rnx2uni_data_bxx(in_path, out_path, desver):
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obsnum=0
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obsget=False
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in_f=open(in_path, 'r')
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while True:
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inline = in_f.readline()
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if not inline: break
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elif inline.find('# / TYPES OF OBSERV')>=0:
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if not obsget:
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obsget=True
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obsnum=int(inline[0:6])
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else: continue
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elif inline.find("END OF HEADER")>=0: break
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while True:
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inline = in_f.readline()
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if not inline: break
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elif inline[0:5]==5*bnk: continue
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elif inline.find("COMMENT")>=0: continue
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else:
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outlines=data2uni_bxx(inline, obsnum, in_f)
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uni2data_cxx(outlines, out_path)
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return 1
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# =======================================================================================
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#
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#
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#
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#
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# =======================================================================================
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def Convert_Un(in_path, out_path, oriver, desver, resqueue):
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origin=0
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match oriver:
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case '2.10': origin=2
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case '2.11': origin=2
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case '3.03': origin=3
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case '3.04': origin=3
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case '3.05': origin=3
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if origin==2:
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match rnx2uni_head_bxx(in_path, out_path, oriver, desver):
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case 1: rnx2uni_data_bxx(in_path, out_path, desver)
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case 0: return resqueue.put(0)
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case-10: return resqueue.put(0)
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case-11: return resqueue.put(0)
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case-12: return resqueue.put(0)
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elif origin==3: resqueue.put(0)
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resqueue.put(1)
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# =======================================================================================
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def _Convert_Un(in_path, out_path, oriver, desver, resqueue):
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T=threading.Thread(
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target=lambda :Convert_Un(in_path, out_path, oriver, desver, resqueue)
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)
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T.start()
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T.join()
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return resqueue.get()
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