troggle-unchained/parsers/survex.py
2020-04-28 18:26:08 +01:00

462 lines
19 KiB
Python

import troggle.settings as settings
import troggle.core.models as models
import troggle.settings as settings
from subprocess import call, Popen, PIPE
from troggle.parsers.people import GetPersonExpeditionNameLookup
from django.utils.timezone import get_current_timezone
from django.utils.timezone import make_aware
import re
import os
from datetime import datetime
line_leg_regex = re.compile(r"[\d\-+.]+$")
def LoadSurvexLineLeg(survexblock, stardata, sline, comment, cave):
# The try catches here need replacing as they are relatively expensive
ls = sline.lower().split()
ssfrom = survexblock.MakeSurvexStation(ls[stardata["from"]])
ssto = survexblock.MakeSurvexStation(ls[stardata["to"]])
survexleg = models.SurvexLeg(block=survexblock, stationfrom=ssfrom, stationto=ssto)
if stardata["type"] == "normal":
try:
survexleg.tape = float(ls[stardata["tape"]])
except ValueError:
print("Tape misread in", survexblock.survexfile.path)
print("Stardata:", stardata)
print("Line:", ls)
survexleg.tape = 1000
try:
lclino = ls[stardata["clino"]]
except:
print("Clino misread in", survexblock.survexfile.path)
print("Stardata:", stardata)
print("Line:", ls)
lclino = error
try:
lcompass = ls[stardata["compass"]]
except:
print("Compass misread in", survexblock.survexfile.path)
print("Stardata:", stardata)
print("Line:", ls)
lcompass = error
if lclino == "up":
survexleg.compass = 0.0
survexleg.clino = 90.0
elif lclino == "down":
survexleg.compass = 0.0
survexleg.clino = -90.0
elif lclino == "-" or lclino == "level":
try:
survexleg.compass = float(lcompass)
except ValueError:
print("Compass misread in", survexblock.survexfile.path)
print("Stardata:", stardata)
print("Line:", ls)
survexleg.compass = 1000
survexleg.clino = -90.0
else:
assert line_leg_regex.match(lcompass), ls
assert line_leg_regex.match(lclino) and lclino != "-", ls
survexleg.compass = float(lcompass)
survexleg.clino = float(lclino)
if cave:
survexleg.cave = cave
# only save proper legs
survexleg.save()
itape = stardata.get("tape")
if itape:
try:
survexblock.totalleglength += float(ls[itape])
except ValueError:
print("Length not added")
survexblock.save()
def LoadSurvexEquate(survexblock, sline):
#print sline #
stations = sline.split()
assert len(stations) > 1
for station in stations:
survexblock.MakeSurvexStation(station)
def LoadSurvexLinePassage(survexblock, stardata, sline, comment):
pass
stardatadefault = {"type":"normal", "t":"leg", "from":0, "to":1, "tape":2, "compass":3, "clino":4}
stardataparamconvert = {"length":"tape", "bearing":"compass", "gradient":"clino"}
regex_comment = re.compile(r"([^;]*?)\s*(?:;\s*(.*))?\n?$")
regex_ref = re.compile(r'.*?ref.*?(\d+)\s*#\s*(\d+)')
regex_star = re.compile(r'\s*\*[\s,]*(\w+)\s*(.*?)\s*(?:;.*)?$')
regex_team = re.compile(r"(Insts|Notes|Tape|Dog|Useless|Pics|Helper|Disto|Consultant)\s+(.*)$(?i)")
regex_team_member = re.compile(r" and | / |, | & | \+ |^both$|^none$(?i)")
regex_qm = re.compile(r'^\s*QM(\d)\s+?([a-dA-DxX])\s+([\w\-]+)\.(\d+)\s+(([\w\-]+)\.(\d+)|\-)\s+(.+)$')
def RecursiveLoad(survexblock, survexfile, fin, textlines):
iblankbegins = 0
text = [ ]
stardata = stardatadefault
teammembers = [ ]
# uncomment to print out all files during parsing
print(" - Reading file: " + survexblock.survexfile.path)
stamp = datetime.now()
lineno = 0
# Try to find the cave in the DB if not use the string as before
path_match = re.search(r"caves-(\d\d\d\d)/(\d+|\d\d\d\d-?\w+-\d+)/", survexblock.survexfile.path)
if path_match:
pos_cave = '%s-%s' % (path_match.group(1), path_match.group(2))
# print('Match')
# print(pos_cave)
cave = models.getCaveByReference(pos_cave)
if cave:
survexfile.cave = cave
svxlines = ''
svxlines = fin.read().splitlines()
# print('Cave - preloop ' + str(survexfile.cave))
# print(survexblock)
for svxline in svxlines:
# print(survexblock)
# print(svxline)
# if not svxline:
# print(' - Not survex')
# return
# textlines.append(svxline)
lineno += 1
# print(' - Line: %d' % lineno)
# break the line at the comment
sline, comment = regex_comment.match(svxline.strip()).groups()
# detect ref line pointing to the scans directory
mref = comment and regex_ref.match(comment)
if mref:
refscan = "%s#%s" % (mref.group(1), mref.group(2))
survexscansfolders = models.SurvexScansFolder.objects.filter(walletname=refscan)
if survexscansfolders:
survexblock.survexscansfolder = survexscansfolders[0]
#survexblock.refscandir = "%s/%s%%23%s" % (mref.group(1), mref.group(1), mref.group(2))
survexblock.save()
print(' - Wallet *ref - %s' % refscan)
continue
# This whole section should be moved if we can have *QM become a proper survex command
# Spec of QM in SVX files, currently commented out need to add to survex
# needs to match regex_qm
# ;Serial number grade(A/B/C/D/X) nearest-station resolution-station description
# ;QM1 a hobnob_hallway_2.42 hobnob-hallway_3.42 junction of keyhole passage
# ;QM1 a hobnob_hallway_2.42 - junction of keyhole passage
qmline = comment and regex_qm.match(comment)
if qmline:
# print(qmline.groups())
#(u'1', u'B', u'miraclemaze', u'1.17', u'-', None, u'\tcontinuation of rift')
qm_no = qmline.group(1)
qm_grade = qmline.group(2)
qm_from_section = qmline.group(3)
qm_from_station = qmline.group(4)
qm_resolve_section = qmline.group(6)
qm_resolve_station = qmline.group(7)
qm_notes = qmline.group(8)
# print('Cave - %s' % survexfile.cave)
# print('QM no %d' % int(qm_no))
# print('QM grade %s' % qm_grade)
# print('QM section %s' % qm_from_section)
# print('QM station %s' % qm_from_station)
# print('QM res section %s' % qm_resolve_section)
# print('QM res station %s' % qm_resolve_station)
# print('QM notes %s' % qm_notes)
# If the QM isn't resolved (has a resolving station) thn load it
if not qm_resolve_section or qm_resolve_section is not '-' or qm_resolve_section is not 'None':
from_section = models.SurvexBlock.objects.filter(name=qm_from_section)
# If we can find a section (survex note chunck, named)
if len(from_section) > 0:
# print(from_section[0])
from_station = models.SurvexStation.objects.filter(block=from_section[0], name=qm_from_station)
# If we can find a from station then we have the nearest station and can import it
if len(from_station) > 0:
# print(from_station[0])
qm = models.QM.objects.create(number=qm_no,
nearest_station=from_station[0],
grade=qm_grade.upper(),
location_description=qm_notes)
else:
# print(' - QM found but resolved')
pass
#print('Cave -sline ' + str(cave))
if not sline:
continue
# detect the star command
mstar = regex_star.match(sline)
if not mstar:
if "from" in stardata:
# print('Cave ' + str(survexfile.cave))
# print(survexblock)
LoadSurvexLineLeg(survexblock, stardata, sline, comment, survexfile.cave)
# print(' - From: ')
# print(stardata)
pass
elif stardata["type"] == "passage":
LoadSurvexLinePassage(survexblock, stardata, sline, comment)
# print(' - Passage: ')
#Missing "station" in stardata.
continue
# detect the star command
cmd, line = mstar.groups()
cmd = cmd.lower()
if re.match("include$(?i)", cmd):
includepath = os.path.join(os.path.split(survexfile.path)[0], re.sub(r"\.svx$", "", line))
print(' - Include file found including - ' + includepath)
# Try to find the cave in the DB if not use the string as before
path_match = re.search(r"caves-(\d\d\d\d)/(\d+|\d\d\d\d-?\w+-\d+)/", includepath)
if path_match:
pos_cave = '%s-%s' % (path_match.group(1), path_match.group(2))
# print(pos_cave)
cave = models.getCaveByReference(pos_cave)
if cave:
survexfile.cave = cave
else:
print(' - No match (i) for %s' % includepath)
includesurvexfile = models.SurvexFile(path=includepath)
includesurvexfile.save()
includesurvexfile.SetDirectory()
if includesurvexfile.exists():
survexblock.save()
fininclude = includesurvexfile.OpenFile()
RecursiveLoad(survexblock, includesurvexfile, fininclude, textlines)
elif re.match("begin$(?i)", cmd):
if line:
newsvxpath = os.path.join(os.path.split(survexfile.path)[0], re.sub(r"\.svx$", "", line))
# Try to find the cave in the DB if not use the string as before
path_match = re.search(r"caves-(\d\d\d\d)/(\d+|\d\d\d\d-?\w+-\d+)/", newsvxpath)
if path_match:
pos_cave = '%s-%s' % (path_match.group(1), path_match.group(2))
# print(pos_cave)
cave = models.getCaveByReference(pos_cave)
if cave:
survexfile.cave = cave
else:
print(' - No match (b) for %s' % newsvxpath)
name = line.lower()
print(' - Begin found for: ' + name)
# print('Block cave: ' + str(survexfile.cave))
survexblockdown = models.SurvexBlock(name=name, begin_char=fin.tell(), parent=survexblock, survexpath=survexblock.survexpath+"."+name, cave=survexfile.cave, survexfile=survexfile, totalleglength=0.0)
survexblockdown.save()
survexblock.save()
survexblock = survexblockdown
# print(survexblockdown)
textlinesdown = [ ]
RecursiveLoad(survexblockdown, survexfile, fin, textlinesdown)
else:
iblankbegins += 1
elif re.match("end$(?i)", cmd):
if iblankbegins:
iblankbegins -= 1
else:
survexblock.text = "".join(textlines)
survexblock.save()
# print(' - End found: ')
endstamp = datetime.now()
timetaken = endstamp - stamp
# print(' - Time to process: ' + str(timetaken))
return
elif re.match("date$(?i)", cmd):
if len(line) == 10:
#print(' - Date found: ' + line)
survexblock.date = make_aware(datetime.strptime(re.sub(r"\.", "-", line), '%Y-%m-%d'), get_current_timezone())
expeditions = models.Expedition.objects.filter(year=line[:4])
if expeditions:
assert len(expeditions) == 1
survexblock.expedition = expeditions[0]
survexblock.expeditionday = survexblock.expedition.get_expedition_day(survexblock.date)
survexblock.save()
elif re.match("team$(?i)", cmd):
pass
# print(' - Team found: ')
mteammember = regex_team.match(line)
if mteammember:
for tm in regex_team_member.split(mteammember.group(2)):
if tm:
personexpedition = survexblock.expedition and GetPersonExpeditionNameLookup(survexblock.expedition).get(tm.lower())
if (personexpedition, tm) not in teammembers:
teammembers.append((personexpedition, tm))
personrole = models.SurvexPersonRole(survexblock=survexblock, nrole=mteammember.group(1).lower(), personexpedition=personexpedition, personname=tm)
personrole.expeditionday = survexblock.expeditionday
if personexpedition:
personrole.person=personexpedition.person
personrole.save()
elif cmd == "title":
#print(' - Title found: ')
survextitle = models.SurvexTitle(survexblock=survexblock, title=line.strip('"'), cave=survexfile.cave)
survextitle.save()
pass
elif cmd == "require":
# should we check survex version available for processing?
pass
elif cmd == "data":
#print(' - Data found: ')
ls = line.lower().split()
stardata = { "type":ls[0] }
#print(' - Star data: ', stardata)
#print(ls)
for i in range(0, len(ls)):
stardata[stardataparamconvert.get(ls[i], ls[i])] = i - 1
if ls[0] in ["normal", "cartesian", "nosurvey"]:
assert (("from" in stardata and "to" in stardata) or "station" in stardata), line
elif ls[0] == "default":
stardata = stardatadefault
else:
assert ls[0] == "passage", line
elif cmd == "equate":
#print(' - Equate found: ')
LoadSurvexEquate(survexblock, line)
elif cmd == "fix":
#print(' - Fix found: ')
survexblock.MakeSurvexStation(line.split()[0])
else:
#print(' - Stuff')
if cmd not in ["sd", "include", "units", "entrance", "data", "flags", "title", "export", "instrument",
"calibrate", "set", "infer", "alias", "ref", "cs", "declination", "case"]:
print("Unrecognised command in line:", cmd, line, survexblock, survexblock.survexfile.path)
endstamp = datetime.now()
timetaken = endstamp - stamp
# print(' - Time to process: ' + str(timetaken))
def LoadAllSurvexBlocks():
print(' - Flushing All Survex Blocks...')
models.SurvexBlock.objects.all().delete()
models.SurvexFile.objects.all().delete()
models.SurvexDirectory.objects.all().delete()
models.SurvexEquate.objects.all().delete()
models.SurvexLeg.objects.all().delete()
models.SurvexTitle.objects.all().delete()
models.SurvexPersonRole.objects.all().delete()
models.SurvexStation.objects.all().delete()
print(" - Data flushed")
print(' - Loading All Survex Blocks...')
survexfile = models.SurvexFile(path=settings.SURVEX_TOPNAME, cave=None)
survexfile.save()
survexfile.SetDirectory()
#Load all
survexblockroot = models.SurvexBlock(name="root", survexpath="", begin_char=0, cave=None, survexfile=survexfile, totalleglength=0.0)
survexblockroot.save()
fin = survexfile.OpenFile()
textlines = [ ]
# The real work starts here
RecursiveLoad(survexblockroot, survexfile, fin, textlines)
fin.close()
survexblockroot.text = "".join(textlines)
survexblockroot.save()
print(' - Loaded All Survex Blocks.')
poslineregex = re.compile(r"^\(\s*([+-]?\d*\.\d*),\s*([+-]?\d*\.\d*),\s*([+-]?\d*\.\d*)\s*\)\s*([^\s]+)$")
def LoadPos():
"""Run cavern to produce a complete .3d file, then run 3dtopos to produce a table of
all survey point positions. Then lookup each position by name to see if we have it in the database
and if we do, then save the x/y/z coordinates.
If we don't have it in the database, print an error message and discard it.
"""
topdata = settings.SURVEX_DATA + settings.SURVEX_TOPNAME
print(' - Generating a list of Pos from %s.svx and then loading...' % (topdata))
# Be careful with the cache file.
# If LoadPos has been run before,
# but without cave import being run before,
# then *everything* may be in the fresh 'not found' cache file.
cachefile = settings.SURVEX_DATA + "posnotfound"
notfoundbefore = {}
if os.path.isfile(cachefile):
updtsvx = os.path.getmtime(topdata + ".svx")
updtcache = os.path.getmtime(cachefile)
age = updtcache - updtsvx
print(' svx: %s cache: %s cache age: %s' % (updtsvx, updtcache, age ))
if age < 0 :
print " cache is stale."
os.remove(cachefile)
else:
print " cache is fresh."
try:
f = open(cachefile, "r")
for line in f:
notfoundbefore[line] +=1 # should not be duplicates
except:
print " FAILURE READ opening cache file %s" % (cachefile)
f.close()
notfoundnow =[]
found = 0
skip = {}
print "\n" # extra line because cavern overwrites the text buffer somehow
# cavern defaults to using same cwd as supplied input file
call([settings.CAVERN, "--output=%s.3d" % (topdata), "%s.svx" % (topdata)])
call([settings.THREEDTOPOS, '%s.3d' % (topdata)], cwd = settings.SURVEX_DATA)
posfile = open("%s.pos" % (topdata))
posfile.readline() #Drop header
for line in posfile.readlines():
r = poslineregex.match(line)
if r:
x, y, z, name = r.groups() # easting, northing, altitude
if name in notfoundbefore:
skip[name] += 1
else:
try:
ss = models.SurvexStation.objects.lookup(name)
ss.x = float(x)
ss.y = float(y)
ss.z = float(z)
ss.save()
found += 1
except:
#print "%s in %s.pos not found in lookup of SurvexStation.objects" % (name, settings.SURVEX_TOPNAME)
notfoundnow.append(name)
print " - %s stations NOT found in lookup of SurvexStation.objects. %s found. %s skipper." % (len(notfoundnow),found, skip)
if found > 10: # i.e. a previous cave import has been done
try:
with open(cachefile, "w") as f:
print " cache file opened"
for i in notfoundnow:
f.write("%s\n" % i)
for j in skip:
f.write("%s\n" % j) # NB skip not notfoundbefore
except:
print " FAILURE WRITE opening cache file %s" % (cachefile)