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getDisplacement+.py
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getDisplacement+.py
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#!/usr/bin/env python3
# Author: Developed for GeoGateway by Michael Heflin
# Date: September 20, 2016
# Addition of NGL flag, file support by Jay Parker
# Date: February 10, 2021
# Organization: JPL, Caltech
from __future__ import print_function
prolog="""
**PROGRAM**
getDisplacement.py
**PURPOSE**
Make kml file from displacement observed between two epochs
**USAGE**
"""
epilog="""
**EXAMPLE**
getDisplacement.py --lat 33 --lon -115 --width 2 --height 2 -t1 2010-04-07 -t2 2010-04-09 -c NGL -o displacement.kml
**COPYRIGHT**
| Copyright 2016, by the California Institute of Technology
| United States Government Sponsorship acknowledged
| All rights reserved
**AUTHORS**
| Developed for GeoGateway by Michael Heflin
| Jet Propulsion Laboratory
| California Institute of Technology
| Pasadena, CA, USA
"""
# Import modules
import os
import sys
import math
import time
import datetime
import calendar
import argparse
import subprocess
import urllib.request
class LocationItem():
def __init__(self,line,center):
item = line.split()
if center == "JPL":
if (len(item) == 8):
if (item[1] == 'POS'):
self.stn, self.lon, self.lat = item[0],float(item[3]),float(item[2])
if self.lon > 180: self.lon -= 360.
if self.lon < -180: self.lon += 360.
else:
self.stn = False
else:
self.stn = False
if center == "NGL":
if (len(item) == 4):
self.stn, self.lon, self.lat = item[0],float(item[2]),float(item[1])
if self.lon > 180: self.lon -= 360.
if self.lon < -180: self.lon += 360.
else:
self.stn = False
class SeriesItem():
def __init__(self,series,center):
"""
Extract items from proper columns of line of time series.
For JPL (position in m, see "methods" link at JPL GNSS Time Series site):
Columns 1-3 (from 0 ) : East(m) North(m) Vert(m)
Columns 4-6 E_sig(m) N_sig(m) V_sig(m)
1994.00136893 0.877450 -0.309555 0.011551 0.000609 0.000682 0.002465 0.048078 -0.202782 -0.234850 -189302400.00 1994 1 1 12 0 0
For NGL:
site YYMMMDD yyyy.yyyy __MJD week d reflon _e0(m) __east(m) ____n0(m) _north(m) u0(m) ____up(m) _ant(m) sig_e(m) sig_n(m) sig_u(m) __corr_en __corr_eu __corr_nu
USC1 96JAN01 1996.0000 50083 834 2 -118.3 1375 0.510258 3766317 0.946300 21 0.941326 0.0614 0.000863 0.001028 0.004216 -0.094302 0.146021 -0.340417
"""
ix = series.split()
if center == "JPL":
self.fracYr = ix[0]
self.ePos,self.nPos,self.uPos = ix[1],ix[2],ix[3]
self.eSig,self.nSig,self.uSig = ix[4],ix[5],ix[6]
if center == "NGL":
self.fracYr = ix[2]
m2mm = 1000.
self.ePos,self.nPos,self.uPos = ix[8], ix[10], ix[12]
self.eSig,self.nSig,self.uSig = ix[14], ix[15], ix[16]
def runCmd(cmd):
'''run a command'''
p = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE,
stderr=subprocess.PIPE,executable='/bin/bash')
(out, err) = p.communicate()
if p.returncode != 0:
raise UserWarning('failed to run {}\n{}\n'.format(cmd.split()[0],
err))
return out
def _getParser():
parser = argparse.ArgumentParser(description=prolog,epilog=epilog,
formatter_class=argparse.RawDescriptionHelpFormatter)
parser.add_argument('-o', action='store', dest='output',required=True,help='output kml file')
parser.add_argument('--lat', action='store', dest='lat',required=True,help='center latitude in degrees')
parser.add_argument('--lon', action='store', dest='lon',required=True,help='center longitude in degrees')
parser.add_argument('--width', action='store', dest='width',required=True,help='width in degrees')
parser.add_argument('--height', action='store', dest='height',required=True,help='height in degrees')
parser.add_argument('-t1', action='store', dest='epoch1',required=True,help='start date given as YYYY-MM-DD')
parser.add_argument('-t2', action='store', dest='epoch2',required=True,help='stop date given as YYYY-MM-DD')
parser.add_argument('--scale', action='store', dest='scale',required=False,help='scale for offsets in mm/deg')
parser.add_argument('--ref', action='store', dest='ref',required=False,help='reference site')
parser.add_argument('-c', action='store', dest='analysisCenter',required=False,help='analysis center [JPL or NGL]')
parser.add_argument('-e', action='store_true',dest='eon',required=False,help='include error bars')
parser.add_argument('--minm', action='store_true',dest='mon',required=False,help='minimize marker size')
parser.add_argument('--dwin1', action='store',dest='dwin1',required=False,help='specify averaging window in days')
parser.add_argument('--dwin2', action='store',dest='dwin2',required=False,help='specify averaging window in days')
parser.add_argument('--vabs', action='store_true',dest='vabs',required=False,help='display absolute verticals')
return parser
def main():
# Read command line arguments
parser = _getParser()
results = parser.parse_args()
# Set bounds
latmin = float(results.lat) - float(results.height)/2
latmax = float(results.lat) + float(results.height)/2
lonmin = float(results.lon) - float(results.width)/2
lonmax = float(results.lon) + float(results.width)/2
# Set scale
scale = 320
if (results.scale != None):
scale = float(results.scale)
# Set marker size
if (results.mon == True):
msize = 0.2
else:
msize = 0.5
# Set analysis center
if (results.analysisCenter != None):
analysisCenter = results.analysisCenter
else: #default
analysisCenter = "JPL"
# Set averaging window
dwin1 = 10./365.25/2.
dwin2 = 10./365.25/2.
if (results.dwin1 != None):
dwin1 = float(results.dwin1)/365.25/2.
if (results.dwin2 != None):
dwin2 = float(results.dwin2)/365.25/2.
# Set first epoch
if (len(results.epoch1) == 10):
results.epoch1 = datetime.datetime.strptime(results.epoch1,"%Y-%m-%d").strftime("%y%b%d").upper()
ntime = time.strptime(results.epoch1,"%y%b%d")
jtime = time.strptime("2000JAN01","%Y%b%d")
ytime1 = float(calendar.timegm(ntime)-calendar.timegm(jtime))
ytime1 = ytime1/(86400.*365.25)
ytime1 = ytime1 + 2000.
# Set second epoch
if (len(results.epoch2) == 10):
results.epoch2 = datetime.datetime.strptime(results.epoch2,"%Y-%m-%d").strftime("%y%b%d").upper()
ntime = time.strptime(results.epoch2,"%y%b%d")
jtime = time.strptime("2000JAN01","%Y%b%d")
ytime2 = float(calendar.timegm(ntime)-calendar.timegm(jtime))
ytime2 = ytime2/(86400.*365.25)
ytime2 = ytime2 + 2000.
# Read table of positions
if analysisCenter == "JPL":
response1 = urllib.request.urlopen(\
'https://sideshow.jpl.nasa.gov/post/tables/table2.html')
fileLines = response1.read().decode('utf-8').splitlines()
elif analysisCenter == "NGL":
response1 = urllib.request.urlopen(\
'http://geodesy.unr.edu/NGLStationPages/llh.out')
fileLines = response1.read().decode('utf-8').splitlines()
else:
raise Exception("analysisCenter supplied as "+analysisCenter+" but only JPL,NGL are supported")
# Read reference series
rlon = 0
rlat = 0
rrad = 0
stop = 0
refsite = 'NONE'
if (results.ref != None):
refsite = results.ref
if analysisCenter == "JPL":
path = 'https://sideshow.jpl.nasa.gov/pub/JPL_GPS_Timeseries/' + \
'repro2018a/post/point/' + refsite + '.series'
elif analysisCenter == "NGL":
path = 'http://geodesy.unr.edu/gps_timeseries/tenv3/IGS14/'\
+ refsite +'.tenv3'
request = urllib.request.Request(path)
response2 = urllib.request.urlopen(request)
series = response2.read().decode('utf-8').splitlines()
series = series[1:]
# Compute reference values
rlon = 0
rlat = 0
rrad = 0
rlon1 = 0
rlat1 = 0
rrad1 = 0
slon1 = 0
slat1 = 0
srad1 = 0
rlon2 = 0
rlat2 = 0
rrad2 = 0
slon2 = 0
slat2 = 0
srad2 = 0
scount1 = 0
scount2 = 0
for j in range(0,len(series)):
item = SeriesItem(series[j],analysisCenter)
if (math.sqrt((float(item.fracYr)-ytime1)*(float(item.fracYr)-ytime1))) < dwin1:
sigs1 = float(item.eSig)*float(item.eSig)
sigs2 = float(item.nSig)*float(item.nSig)
sigs3 = float(item.uSig)*float(item.uSig)
rlon1 = rlon1 + float(item.ePos)/sigs1
rlat1 = rlat1 + float(item.nPos)/sigs2
rrad1 = rrad1 + float(item.uPos)/sigs3
slon1 = slon1 + 1/sigs1
slat1 = slat1 + 1/sigs2
srad1 = srad1 + 1/sigs3
scount1 = scount1 + 1
if (math.sqrt((float(item.fracYr)-ytime2)*(float(item.fracYr)-ytime2))) < dwin2:
sigs1 = float(item.eSig)*float(item.eSig)
sigs2 = float(item.nSig)*float(item.nSig)
sigs3 = float(item.uSig)*float(item.uSig)
rlon2 = rlon2 + float(item.ePos)/sigs1
rlat2 = rlat2 + float(item.nPos)/sigs2
rrad2 = rrad2 + float(item.uPos)/sigs3
slon2 = slon2 + 1/sigs1
slat2 = slat2 + 1/sigs2
srad2 = srad2 + 1/sigs3
scount2 = scount2 + 1
if ((scount1 >= 1) & (scount2 >= 1)):
rlon = 1000.*(rlon2/slon2-rlon1/slon1)
rlat = 1000.*(rlat2/slat2-rlat1/slat1)
rrad = 1000.*(rrad2/srad2-rrad1/srad1)
# Only use displacements computed from both epochs
if ((scount1 < 1) | (scount2 < 1)):
stop = 1
print("Reference site has missing data!")
# Start kml file
outFile1 = open(results.output+'_horizontal.kml','w')
print("<?xml version=\"1.0\" encoding=\"UTF-8\"?>",file=outFile1)
print("<kml xmlns=\"http://www.opengis.net/kml/2.2\" xmlns:gx=\"http://www.google.com/kml/ext/2.2\" xmlns:kml=\"http://www.opengis.net/kml/2.2\" xmlns:atom=\"http://www.w3.org/2005/Atom\">",file=outFile1)
print(" <Folder>",file=outFile1)
# Start kml file
outFile2 = open(results.output+'_vertical.kml','w')
print("<?xml version=\"1.0\" encoding=\"UTF-8\"?>",file=outFile2)
print("<kml xmlns=\"http://www.opengis.net/kml/2.2\" xmlns:gx=\"http://www.google.com/kml/ext/2.2\" xmlns:kml=\"http://www.opengis.net/kml/2.2\" xmlns:atom=\"http://www.w3.org/2005/Atom\">",file=outFile2)
print(" <Folder>",file=outFile2)
# Start txt file
outFile3 = open(results.output+'_table.txt','w')
print("Site Lon Lat Delta E Delta N Delta V Sigma E Sigma N Sigma V",file=outFile3)
# Add markers and vectors
for i in range(0,len(fileLines)):
location = LocationItem(fileLines[i],analysisCenter)
if location.stn != False:
lon = location.lon
lat = location.lat
if ((lon > lonmin) & (lon < lonmax) & (lat > latmin) & (lat < latmax)):
# Read time series
if analysisCenter == "JPL":
path = 'https://sideshow.jpl.nasa.gov/pub/' +\
'JPL_GPS_Timeseries/repro2018a/post/point/' \
+ location.stn + '.series'
elif analysisCenter == "NGL":
path = 'http://geodesy.unr.edu/gps_timeseries/tenv3/IGS14/'\
+ location.stn +'.tenv3'
request = urllib.request.Request(path)
response2 = urllib.request.urlopen(request)
series = response2.read().decode('utf-8').splitlines()
if analysisCenter == "NGL":
series = series[1:]
# Compute displacment
vlon = 0
vlat = 0
vrad = 0
slon = 0
slat = 0
srad = 0
vlon1 = 0
vlat1 = 0
vrad1 = 0
slon1 = 0
slat1 = 0
srad1 = 0
vlon2 = 0
vlat2 = 0
vrad2 = 0
slon2 = 0
slat2 = 0
srad2 = 0
scount1 = 0
scount2 = 0
for j in range(0,len(series)):
item = SeriesItem(series[j],analysisCenter)
if (math.sqrt((float(item.fracYr)-ytime1)*(float(item.fracYr)-ytime1))) < dwin1:
sigs1 = float(item.eSig)*float(item.eSig)
sigs2 = float(item.nSig)*float(item.nSig)
sigs3 = float(item.uSig)*float(item.uSig)
vlon1 = vlon1 + float(item.ePos)/sigs1
vlat1 = vlat1 + float(item.nPos)/sigs2
vrad1 = vrad1 + float(item.uPos)/sigs3
slon1 = slon1 + 1/sigs1
slat1 = slat1 + 1/sigs2
srad1 = srad1 + 1/sigs3
scount1 = scount1 + 1
if (math.sqrt((float(item.fracYr)-ytime2)*(float(item.fracYr)-ytime2))) < dwin2:
sigs1 = float(item.eSig)*float(item.eSig)
sigs2 = float(item.nSig)*float(item.nSig)
sigs3 = float(item.uSig)*float(item.uSig)
vlon2 = vlon2 + float(item.ePos)/sigs1
vlat2 = vlat2 + float(item.nPos)/sigs2
vrad2 = vrad2 + float(item.uPos)/sigs3
slon2 = slon2 + 1/sigs1
slat2 = slat2 + 1/sigs2
srad2 = srad2 + 1/sigs3
scount2 = scount2 + 1
if ((scount1 >= 1) & (scount2 >= 1)):
vlon = 1000.*(vlon2/slon2-vlon1/slon1)
vlat = 1000.*(vlat2/slat2-vlat1/slat1)
vrad = 1000.*(vrad2/srad2-vrad1/srad1)
slon = 1000.*math.sqrt(1/slon1+1/slon2)
slat = 1000.*math.sqrt(1/slat1+1/slat2)
srad = 1000.*math.sqrt(1/srad1+1/srad2)
# Subtract reference values
vlon = vlon-rlon
vlat = vlat-rlat
vrad = vrad-rrad
if (results.vabs == True):
vrad = vrad+rrad
# Only use displacements computed from both epochs
if ((scount1 >= 1) & (scount2 >= 1) & (stop != 1)):
# Set marker color
if (location.stn == refsite):
mcolor = 'FF0000FF'
else:
mcolor = 'FF78FF78'
# Draw marker
if analysisCenter == "JPL":
linkPlot = \
'"https://sideshow.jpl.nasa.gov/post/links/{:s}.html\">'.format(location.stn)
imgPlot = \
'"https://sideshow.jpl.nasa.gov/post/plots/{:s}.jpg\"'.format(location.stn)
if analysisCenter == "NGL":
linkPlot = \
'"http://geodesy.unr.edu/NGLStationPages/stations/{:s}.sta\"'.format(location.stn)
imgPlot = \
'"http://geodesy.unr.edu/tsplots/IGS14/IGS14/TimeSeries/{:s}.png"'.format(location.stn)
print(" <Placemark>",file=outFile1)
print(" <description><![CDATA[",file=outFile1)
#print(" <a href=\"https://sideshow.jpl.nasa.gov/post/links/{:s}.html\">".format(location.stn),file=outFile1)
#print(" <img src=\"https://sideshow.jpl.nasa.gov/post/plots/{:s}.jpg\" width=\"300\" height=\"300\">".format(location.stn),file=outFile1)
print(" <a href=" + linkPlot, file=outFile1)
print(" <img src=" + imgPlot + " width=\"300\" height=\"300\">",file=outFile1)
print(" </a>",file=outFile1)
print(" ]]></description>",file=outFile1)
print(" <Style><IconStyle>",file=outFile1)
print(" <color>{:s}</color>".format(mcolor),file=outFile1)
print(" <scale>{:f}</scale>".format(msize),file=outFile1)
print(" <Icon><href>https://maps.google.com/mapfiles/kml/paddle/wht-blank.png</href></Icon>",file=outFile1)
print(" </IconStyle></Style>",file=outFile1)
print(" <Point>",file=outFile1)
print(" <coordinates>",file=outFile1)
print(" {:f},{:f},0".format(lon,lat),file=outFile1)
print(" </coordinates>",file=outFile1)
print(" </Point>",file=outFile1)
print(" </Placemark>",file=outFile1)
# Draw marker
print(" <Placemark>",file=outFile2)
print(" <description><![CDATA[",file=outFile2)
#print(" <a href=\"https://sideshow.jpl.nasa.gov/post/links/{:s}.html\">".format(location.stn),file=outFile2)
#print(" <img src=\"https://sideshow.jpl.nasa.gov/post/plots/{:s}.jpg\" width=\"300\" height=\"300\">".format(location.stn),file=outFile2)
print(" <a href=" + linkPlot, file=outFile2)
print(" <img src=" + imgPlot + " width=\"300\" height=\"300\">",file=outFile2)
print(" </a>",file=outFile2)
print(" ]]></description>",file=outFile2)
print(" <Style><IconStyle>",file=outFile2)
print(" <color>{:s}</color>".format(mcolor),file=outFile2)
print(" <scale>{:f}</scale>".format(msize),file=outFile2)
print(" <Icon><href>https://maps.google.com/mapfiles/kml/paddle/wht-blank.png</href></Icon>",file=outFile2)
print(" </IconStyle></Style>",file=outFile2)
print(" <Point>",file=outFile2)
print(" <coordinates>",file=outFile2)
print(" {:f},{:f},0".format(lon,lat),file=outFile2)
print(" </coordinates>",file=outFile2)
print(" </Point>",file=outFile2)
print(" </Placemark>",file=outFile2)
# Draw vector
print(" <Placemark>",file=outFile1)
print(" <Style><LineStyle>",file=outFile1)
print(" <color>FFB478FF</color>",file=outFile1)
print(" <width>2</width>",file=outFile1)
print(" </LineStyle></Style>",file=outFile1)
print(" <LineString>",file=outFile1)
print(" <coordinates>",file=outFile1)
print(" {:f},{:f},0".format(lon,lat),file=outFile1)
print(" {:f},{:f},0".format(lon+vlon/scale/math.cos(lat*math.pi/180.),lat+vlat/scale),file=outFile1)
print(" </coordinates>",file=outFile1)
print(" </LineString>",file=outFile1)
print(" </Placemark>",file=outFile1)
# Draw sigmas
if (results.eon == True):
print(" <Placemark>",file=outFile1)
print(" <Style>",file=outFile1)
print(" <LineStyle>",file=outFile1)
print(" <color>FF000000</color>",file=outFile1)
print(" <width>2</width>",file=outFile1)
print(" </LineStyle>",file=outFile1)
print(" <PolyStyle>",file=outFile1)
print(" <color>FF000000</color>",file=outFile1)
print(" <fill>0</fill>",file=outFile1)
print(" </PolyStyle>",file=outFile1)
print(" </Style>",file=outFile1)
print(" <Polygon>",file=outFile1)
print(" <outerBoundaryIs>",file=outFile1)
print(" <LinearRing>",file=outFile1)
print(" <coordinates>",file=outFile1)
theta = 0
for k in range(0,31):
angle = k/30*2*math.pi
elon = slon*math.cos(angle)*math.cos(theta)-slat*math.sin(angle)*math.sin(theta)
elat = slon*math.cos(angle)*math.sin(theta)+slat*math.sin(angle)*math.cos(theta)
elon = (elon+vlon)/scale/math.cos(lat*math.pi/180.)
elat = (elat+vlat)/scale
print(" {:f},{:f},0".format(lon+elon,lat+elat),file=outFile1)
print(" </coordinates>",file=outFile1)
print(" </LinearRing>",file=outFile1)
print(" </outerBoundaryIs>",file=outFile1)
print(" </Polygon>",file=outFile1)
print(" </Placemark>",file=outFile1)
# Set circle color
if (vrad > 0):
lcolor = 'FF0000FF'
pcolor = '7F0000FF'
else:
lcolor = 'FFFF0000'
pcolor = '7FFF0000'
# Draw circle size proportional to vertical
print(" <Placemark>",file=outFile2)
print(" <Style>",file=outFile2)
print(" <LineStyle>",file=outFile2)
print(" <color>{:s}</color>".format(lcolor),file=outFile2)
print(" <width>1</width>",file=outFile2)
print(" </LineStyle>",file=outFile2)
print(" <PolyStyle>",file=outFile2)
print(" <color>{:s}</color>".format(pcolor),file=outFile2)
print(" <fill>1</fill>",file=outFile2)
print(" </PolyStyle>",file=outFile2)
print(" </Style>",file=outFile2)
print(" <Polygon>",file=outFile2)
print(" <outerBoundaryIs>",file=outFile2)
print(" <LinearRing>",file=outFile2)
print(" <coordinates>",file=outFile2)
theta = 0
for k in range(0,31):
angle = k/30*2*math.pi
elon = vrad*math.cos(angle)*math.cos(theta)-vrad*math.sin(angle)*math.sin(theta)
elat = vrad*math.cos(angle)*math.sin(theta)+vrad*math.sin(angle)*math.cos(theta)
elon = (elon+0)/scale/math.cos(lat*math.pi/180.)
elat = (elat+0)/scale
print(" {:f},{:f},0".format(lon+elon,lat+elat),file=outFile2)
print(" </coordinates>",file=outFile2)
print(" </LinearRing>",file=outFile2)
print(" </outerBoundaryIs>",file=outFile2)
print(" </Polygon>",file=outFile2)
print(" </Placemark>",file=outFile2)
# Make table
print("{:s} {:12f} {:12f} {:12f} {:12f} {:12f} {:12f} {:12f} {:12f}".format(
location.stn,lon,lat,vlon,vlat,vrad,slon,slat,srad),file=outFile3)
# Finish files
print(" </Folder>",file=outFile1)
print("</kml>",file=outFile1)
outFile1.close()
print(" </Folder>",file=outFile2)
print("</kml>",file=outFile2)
outFile2.close()
outFile3.close()
if __name__ == '__main__':
main()