import sys
import os
import re
import time
from datetime import datetime, timedelta
from subprocess import call, Popen, PIPE
from django.utils.timezone import get_current_timezone
from django.utils.timezone import make_aware
import troggle.settings as settings
import troggle.core.models as models
import troggle.core.models_caves as models_caves
import troggle.core.models_survex as models_survex
from troggle.parsers.people import GetPersonExpeditionNameLookup
from troggle.core.views_caves import MapLocations
survexblockroot = None
ROOTBLOCK = "rootblock"
class SurvexLeg():
"""No longer a models.Model subclass, so no longer a database table
"""
tape = 0.0
compass = 0.0
clino = 0.0
class LoadSurvex():
"""A 'survex block' is a *begin...*end set of cave data.
A survex file can contain many begin-end blocks, which can be nested, and which can *include
other survex files.
A 'scansfolder' is what we today call a "survey scans folder" or a "wallet".
"""
# This interprets the survex "*data normal" command which sets out the order of the fields in the data, e.g.
# *DATA normal from to length gradient bearing ignore ignore ignore ignore
stardatadefault = {"type":"normal", "t":"leg", "from":0, "to":1, "tape":2, "compass":3, "clino":4}
stardataparamconvert = {"length":"tape", "bearing":"compass", "gradient":"clino"}
rx_braskets= re.compile(r"[()]")
rx_linelen = re.compile(r"[\d\-+.]+$")
rx_team = re.compile(r"(?i)(Insts|Notes|Tape|Dog|Useless|Pics|Helper|Disto|Consultant)\s+(.*)$")
rx_person = re.compile(r"(?i) and | / |, | & | \+ |^both$|^none$")
rx_qm = re.compile(r'^\s*QM(\d)\s+?([a-dA-DxX])\s+([\w\-]+)\.(\d+)\s+(([\w\-]+)\.(\d+)|\-)\s+(.+)$')
# remember there is also QM_PATTERN used in views_other and set in settings.py
rx_comment = re.compile(r"([^;]*?)\s*(?:;\s*(.*))?\n?$")
rx_ref = re.compile(r'.*?ref.*?(\d+)\s*#\s*(X)?\s*(\d+)')
rx_star = re.compile(r'\s*\*[\s,]*(\w+)\s*(.*?)\s*(?:;.*)?$')
# years from 1960 to 2039
rx_starref = re.compile(r'(?i)^\s*\*ref[\s.:]*((?:19[6789]\d)|(?:20[0123]\d))\s*#?\s*(X)?\s*(.*?\d+.*?)$')
# rx_starref = re.compile("""?x # VERBOSE mode - can't get this to work
# ^\s*\*ref # look for *ref at start of line
# [\s.:]* # some spaces, stops or colons
# ((?:19[6789]\d)|(?:20[0123]\d)) # a date from 1960 to 2039 - captured as one field
# \s*# # spaces then hash separator
# ?\s*(X) # optional X - captured
# ?\s*(.*?\d+.*?) # maybe a space, then at least one digit in the string - captured
# $(?i)""", re.X) # the end (do the whole thing case insensitively)
survexlegsalllength = 0.0
survexlegsnumber = 0
insp = ""
callcount = 0
stardata ={}
def __init__(self):
pass
def LoadSurvexIgnore(self, survexblock, line, cmd):
if cmd == "title":
pass # unused in troggle today - but will become text list on SurvexBlock
elif cmd == "require":
pass # should we check survex version available for processing?
elif cmd in ["equate", "fix", "alias", "calibrate", "cs","entrance", "export", "case",
"declination", "infer","instrument", "sd", "units"]:
pass # we ignore all these, which is fine.
else:
if cmd in ["include", "data", "flags", "title", "set", "ref"]:
message = "! Unparsed [*{}]: '{}' {}".format(cmd, line, survexblock.survexfile.path)
print((self.insp+message))
models.DataIssue.objects.create(parser='survex', message=message)
else:
message = "! Bad svx command: [*{}] {} ({}) {}".format(cmd, line, survexblock, survexblock.survexfile.path)
print((self.insp+message))
models.DataIssue.objects.create(parser='survex', message=message)
def LoadSurvexTeam(self, survexblock, line):
teammembers = [ ]
mteammember = self.rx_team.match(line)
if mteammember:
for tm in self.rx_person.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_survex.SurvexPersonRole(survexblock=survexblock, nrole=mteammember.group(1).lower(), personexpedition=personexpedition, personname=tm)
personrole.expeditionday = survexblock.expeditionday
if personexpedition:
personrole.person=personexpedition.person
personrole.save()
def LoadSurvexDate(self, survexblock, line):
# we should make this a date range for everything
if len(line) == 10:
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()
def LoadSurvexLineLeg(self, survexblock, stardata, sline, comment):
"""This reads compass, clino and tape data but only keeps the tape lengths,
the rest is discarded after error-checking.
"""
ls = sline.lower().split()
survexleg = SurvexLeg()
# this next fails for two surface survey svx files which use / for decimal point
# e.g. '29/09' in the tape measurement, or use decimals but in brackets, e.g. (06.05)
if stardata["type"] == "normal":
tape = self.rx_braskets.sub("",ls[stardata["tape"]])
tape = tape.replace("/",".")
try:
survexleg.tape = float(tape)
self.survexlegsnumber += 1
except ValueError:
print(("! Tape misread in", survexblock.survexfile.path))
print((" Stardata:", stardata))
print((" Line:", ls))
message = ' ! Value Error: Tape misread in line %s in %s' % (ls, survexblock.survexfile.path)
models.DataIssue.objects.create(parser='survex', message=message)
survexleg.tape = 0
try:
lclino = ls[stardata["clino"]]
except:
print(("! Clino misread in", survexblock.survexfile.path))
print((" Stardata:", stardata))
print((" Line:", ls))
message = ' ! Value Error: Clino misread in line %s in %s' % (ls, survexblock.survexfile.path)
models.DataIssue.objects.create(parser='survex', message=message)
lclino = error
try:
lcompass = ls[stardata["compass"]]
except:
print(("! Compass misread in", survexblock.survexfile.path))
print((" Stardata:", stardata))
print((" Line:", ls))
message = ' ! Value Error: Compass misread in line %s in %s' % (ls, survexblock.survexfile.path)
models.DataIssue.objects.create(parser='survex', message=message)
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))
message = ' ! Value Error: line %s in %s' % (ls, survexblock.survexfile.path)
models.DataIssue.objects.create(parser='survex', message=message)
survexleg.compass = 1000
survexleg.clino = -90.0
else:
assert self.rx_linelen.match(lcompass), ls
assert self.rx_linelen.match(lclino) and lclino != "-", ls
survexleg.compass = float(lcompass)
survexleg.clino = float(lclino)
# delete the object so that django autosaving doesn't save it.
survexleg = None
itape = stardata.get("tape")
if itape:
try:
survexblock.totalleglength += float(ls[itape])
self.survexlegsalllength += float(ls[itape])
except ValueError:
print("! Length not added")
def LoadSurvexLinePassage(self, survexblock, stardata, sline, comment):
# do not import this: *data passage.. data which is LRUD not tape/compass/clino
pass
def LoadSurvexRef(self, survexblock, mstar):
# *REF but also ; Ref
yr,letterx,wallet = mstar.groups()
if not letterx:
letterx = ""
else:
letterx = "X"
if len(wallet)<2:
wallet = "0" + wallet
assert (int(yr)>1960 and int(yr)<2039), "Wallet year out of bounds: %s" % yr
assert (int(wallet)<100), "Wallet number more than 100: %s" % wallet
refscan = "%s#%s%s" % (yr, letterx, wallet)
manyscansfolders = models_survex.ScansFolder.objects.filter(walletname=refscan)
if manyscansfolders:
survexblock.scansfolder = manyscansfolders[0]
survexblock.save()
if len(manyscansfolders) > 1:
message = ' ! Wallet *REF {} - multiple scan folders found {}'.format(refscan, survexblock.survexfile.path)
print((self.insp+message))
models.DataIssue.objects.create(parser='survex', message=message)
else:
message = ' ! Wallet *REF {} - NOT found in manyscansfolders {}'.format(refscan, survexblock.survexfile.path)
print((self.insp+message))
models.DataIssue.objects.create(parser='survex', message=message)
def LoadSurvexQM(self, insp, survexblock, qmline):
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)
# 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 self.rx_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
# print(insp+'Cave - %s' % survexfile.cave)
# print(insp+'QM no %d' % int(qm_no))
# print(insp+'QM grade %s' % qm_grade)
# print(insp+'QM section %s' % qm_from_section)
# print(insp+'QM station %s' % qm_from_station)
# print(insp+'QM res section %s' % qm_resolve_section)
# print(insp+'QM res station %s' % qm_resolve_station)
# print(insp+'QM notes %s' % qm_notes)
# If the QM isn't resolved (has a resolving station) then load it
if not qm_resolve_section or qm_resolve_section != '-' or qm_resolve_section != 'None':
from_section = models_survex.SurvexBlock.objects.filter(name=qm_from_section)
# If we can find a section (survex note chunk, named)
if len(from_section) > 0:
from_station = models_survex.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:
qm = models_caves.QM.objects.create(number=qm_no,
nearest_station=from_station[0],
grade=qm_grade.upper(),
location_description=qm_notes)
else:
message = ' ! QM {} in {} NOT resolved and NOT found'.format(qm_no, survexblock.survexfile.path)
print(insp+message)
models.DataIssue.objects.create(parser='survex', message=message)
else:
message = ' ! QM {} in {} found and resolved as {}'.format(qm_no, survexblock.survexfile.path,qm_resolve_section)
print(insp+message)
models.DataIssue.objects.create(parser='survex', message=message)
pass
def RecursiveLoad(self,survexblock, survexfile, fin):
"""Follows the *include links in all the survex files from the root file 1623.svx
and reads in the survex blocks, other data and the wallet references (scansfolder) as it
goes. This part of the data import process is where the maximum memory is used and where it
crashes on memory-constrained machines. Begin-end blocks may also be nested.
"""
iblankbegins = 0
stardata = self.stardatadefault
insp =self.insp
blocklegs = self.survexlegsnumber
print(insp+" - MEM:{:.3f} Reading. parent:{} <> {} ".format(models.get_process_memory(),survexblock.survexfile.path,survexfile.path))
stamp = datetime.now()
lineno = 0
sys.stderr.flush();
self.callcount +=1
if self.callcount >=10:
self.callcount=0
print(".", file=sys.stderr,end='')
# 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))
cave = models_caves.getCaveByReference(pos_cave)
if cave:
survexfile.cave = cave
svxlines = ''
svxlines = fin.read().splitlines()
# cannot close file now as it may be recursively called with the same file id fin if nested *begin
# occurs.
for svxline in svxlines:
lineno += 1
# break the line at the comment
sline, comment = self.rx_comment.match(svxline.strip()).groups()
mref = comment and self.rx_ref.match(comment)
if mref:
self.LoadSurvexRef(survexblock, mref)
qmline = comment and self.rx_qm.match(comment)
if qmline:
self.LoadSurvexQM(insp, survexblock, qmline)
if not sline:
continue
# detect the star ref command
rstar = self.rx_starref.match(sline)
if rstar:
self.LoadSurvexRef(survexblock, rstar)
# detect the star command
mstar = self.rx_star.match(sline)
if not mstar:
if "from" in stardata:
self.LoadSurvexLineLeg(survexblock, stardata, sline, comment)
pass
elif stardata["type"] == "passage":
pass
#self.LoadSurvexLinePassage(survexblock, stardata, sline, comment)
#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.normpath(os.path.join(os.path.split(survexfile.path)[0], re.sub(r"\.svx$", "", line)))
print((insp+' - Include path found, including - ' + includepath))
# Try to find the cave in the DB. if not, use the string as before
path_match = re.search(r"caves-(\d\d\d\d)/(\d+|\d\d\d\d-?\w+-\d+)/", includepath)
if path_match:
pos_cave = '%s-%s' % (path_match.group(1), path_match.group(2))
print((insp+' - Match in DB (i) for cave {}.'.format(pos_cave)))
cave = models_caves.getCaveByReference(pos_cave)
if cave:
survexfile.cave = cave
else:
print((insp+' - NO Match in DB (i) for a cave for {}'.format(includepath)))
includesurvexfile = models_survex.SurvexFile(path=includepath)
includesurvexfile.save()
includesurvexfile.SetDirectory()
if includesurvexfile.exists():
survexblock.save()
fininclude = includesurvexfile.OpenFile()
self.survexlegsnumber = blocklegs
self.insp += "> "
self.RecursiveLoad(survexblock, includesurvexfile, fininclude)
#--------------------------------------------------------
fininclude.close()
self.insp = self.insp[2:]
insp = self.insp
blocklegs = self.survexlegsnumber
else:
print((insp+' ! ERROR *include file not found for %s' % includesurvexfile))
elif re.match("begin$(?i)", cmd):
# On a *begin statement we start a new survexblock.
# There should not be any *include inside a begin-end block, so this is a simple
# load not a recursive fileload. But there may be many blocks nested to any depth in one file.
if line:
newsvxpath = os.path.join(os.path.split(survexfile.path)[0], re.sub(r"\.svx$", "", line))
# Try to find the cave in the DB if not use the string as before
path_match = re.search(r"caves-(\d\d\d\d)/(\d+|\d\d\d\d-?\w+-\d+)/", newsvxpath)
if path_match:
pos_cave = '%s-%s' % (path_match.group(1), path_match.group(2))
# print(insp+pos_cave)
cave = models_caves.getCaveByReference(pos_cave)
if cave:
survexfile.cave = cave
else:
print((insp+' - No match (b) for %s' % newsvxpath))
previousnlegs = blocklegs
name = line.lower()
print(insp+' - Begin found for:{}, creating new SurvexBlock '.format(name))
survexblockdown = models_survex.SurvexBlock(name=name, parent=survexblock,
survexpath=survexblock.survexpath+"."+name,
cave=survexfile.cave, survexfile=survexfile,
legsall=0, legssplay=0, legssurfc=0, totalleglength=0.0)
survexblockdown.save()
survexblock.save()
survexblock = survexblockdown
print(insp+" - ENTERING nested *begin/*end block: {}".format(name))
self.survexlegsnumber = blocklegs
self.insp += "> "
self.RecursiveLoad(survexblockdown, survexfile, fin)
#--------------------------------------------------------
# do not close the file as there may be more blocks in this one
# and it is re-read afresh with every nested begin-end block.
self.insp = self.insp[2:]
insp = self.insp
blocklegs = self.survexlegsnumber
else:
iblankbegins += 1
elif re.match("end$(?i)", cmd):
if iblankbegins:
print(insp+" - RETURNING from nested *begin/*end block: {}".format(line))
iblankbegins -= 1
else:
legsinblock = self.survexlegsnumber - previousnlegs
print(insp+" - LEGS: {} (previous: {}, now:{})".format(legsinblock,previousnlegs,self.survexlegsnumber))
survexblock.legsall = legsinblock
survexblock.save()
return
elif cmd == "flags":
# Here we could set on/off 'splay', 'not splay', 'surface', 'not surface', or 'duplicate'
# but this data is only used for sense-checking not to actually calculate anything important
pass
elif cmd == "data":
ls = line.lower().split()
stardata = { "type":ls[0] }
for i in range(0, len(ls)):
stardata[self.stardataparamconvert.get(ls[i], ls[i])] = i - 1
self.stardata = stardata
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 = self.stardatadefault
else:
assert ls[0] == "passage", line
elif cmd == "set" and re.match("names(?i)", line):
pass
elif re.match("date$(?i)", cmd):
self.LoadSurvexDate(survexblock, line)
elif re.match("team$(?i)", cmd):
self.LoadSurvexTeam(survexblock, line)
else:
self.LoadSurvexIgnore(survexblock, line, cmd)
def FindAndLoadAllSurvex(survexblockroot, survexfileroot):
"""Follows the *include links recursively to find files
"""
print(' - redirecting stdout to svxblks.log...')
stdout_orig = sys.stdout
# Redirect sys.stdout to the file
sys.stdout = open('svxblks.log', 'w')
svxl = LoadSurvex()
finroot = survexfileroot.OpenFile()
svxl.RecursiveLoad(survexblockroot, survexfileroot, finroot)
finroot.close()
survexlegsnumber = svxl.survexlegsnumber
survexlegsalllength = svxl.survexlegsalllength
# Close the logging file, Restore sys.stdout to our old saved file handle
sys.stdout.close()
print("+", file=sys.stderr)
sys.stderr.flush();
sys.stdout = stdout_orig
return (survexlegsnumber, survexlegsalllength)
def LoadAllSurvexBlocks():
print(' - Flushing All Survex Blocks...')
models_survex.SurvexBlock.objects.all().delete()
models_survex.SurvexFile.objects.all().delete()
models_survex.SurvexDirectory.objects.all().delete()
models_survex.SurvexPersonRole.objects.all().delete()
models_survex.SurvexStation.objects.all().delete()
print(" - survex Data Issues flushed")
models.DataIssue.objects.filter(parser='survex').delete()
survexfileroot = models_survex.SurvexFile(path=settings.SURVEX_TOPNAME, cave=None)
survexfileroot.save()
survexfileroot.SetDirectory()
survexblockroot = models_survex.SurvexBlock(name=ROOTBLOCK, survexpath="", cave=None, survexfile=survexfileroot,
legsall=0, legssplay=0, legssurfc=0, totalleglength=0.0)
# this is the first so id=1
survexblockroot.save()
print(' - Loading All Survex Blocks...')
memstart = models.get_process_memory()
survexlegsnumber, survexlegsalllength = FindAndLoadAllSurvex(survexblockroot, survexfileroot)
memend = models.get_process_memory()
print(" - MEMORY start:{:.3f} MB end:{:.3f} MB increase={:.3f} MB".format(memstart,memend, memend-memstart))
survexblockroot.totalleglength = survexlegsalllength
survexblockroot.legsall = survexlegsnumber
survexblockroot.save()
print(" - total number of survex legs: {}m".format(survexlegsnumber))
print(" - total leg lengths loaded: {}m".format(survexlegsalllength))
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.
This is ONLY ever used for entrance and fixedpts locations for the prospecting map:
about 600 points out of 32,000.
"""
topdata = settings.SURVEX_DATA + settings.SURVEX_TOPNAME
print((' - Generating a list of Pos from %s.svx and then loading...' % (topdata)))
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)
mappoints = {}
for pt in MapLocations().points():
svxid, number, point_type, label = pt
mappoints[svxid]=True
posfile = open("%s.pos" % (topdata))
posfile.readline() #Drop header
try:
survexblockroot = models_survex.SurvexBlock.objects.get(name=ROOTBLOCK)
except:
try:
survexblockroot = models_survex.SurvexBlock.objects.get(id=1)
except:
message = ' ! FAILED to find root SurvexBlock'
print(message)
models.DataIssue.objects.create(parser='survex', message=message)
raise
for line in posfile.readlines():
r = poslineregex.match(line)
if r:
x, y, z, id = r.groups()
for sid in mappoints:
if id.endswith(sid):
blockpath = "." + id[:-len(sid)].strip(".")
try:
sbqs = models_survex.SurvexBlock.objects.filter(survexpath=blockpath)
if len(sbqs)==1:
sb = sbqs[0]
if len(sbqs)>1:
message = ' ! MULTIPLE SurvexBlocks matching Entrance point {} {}'.format(blockpath, sid)
print(message)
models.DataIssue.objects.create(parser='survex', message=message)
sb = sbqs[0]
elif len(sbqs)<=0:
message = ' ! ZERO SurvexBlocks matching Entrance point {} {}'.format(blockpath, sid)
print(message)
models.DataIssue.objects.create(parser='survex', message=message)
sb = survexblockroot
except:
message = ' ! FAIL in getting SurvexBlock matching Entrance point {} {}'.format(blockpath, sid)
print(message)
models.DataIssue.objects.create(parser='survex', message=message)
try:
ss = models_survex.SurvexStation(name=id, block=sb)
ss.x = float(x)
ss.y = float(y)
ss.z = float(z)
ss.save()
found += 1
except:
message = ' ! FAIL to create SurvexStation Entrance point {} {}'.format(blockpath, sid)
print(message)
models.DataIssue.objects.create(parser='survex', message=message)
raise
print(" - {} SurvexStation entrances found.".format(found))