ISCE_INSAR/components/isceobj/StripmapProc/runGeo2rdr.py

116 lines
4.0 KiB
Python
Executable File

#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# Copyright 2012 California Institute of Technology. ALL RIGHTS RESERVED.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# United States Government Sponsorship acknowledged. This software is subject to
# U.S. export control laws and regulations and has been classified as 'EAR99 NLR'
# (No [Export] License Required except when exporting to an embargoed country,
# end user, or in support of a prohibited end use). By downloading this software,
# the user agrees to comply with all applicable U.S. export laws and regulations.
# The user has the responsibility to obtain export licenses, or other export
# authority as may be required before exporting this software to any 'EAR99'
# embargoed foreign country or citizen of those countries.
#
# Author: Giangi Sacco
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
import isceobj
import stdproc
from iscesys.ImageUtil.ImageUtil import ImageUtil as IU
from isceobj.Util.Polynomial import Polynomial
from isceobj.Util.Poly2D import Poly2D
from isceobj.Constants import SPEED_OF_LIGHT
import logging
import numpy as np
import datetime
import os
logger = logging.getLogger('isce.insar.runGeo2rdr')
def runGeo2rdr(self):
from zerodop.geo2rdr import createGeo2rdr
from isceobj.Planet.Planet import Planet
logger.info("Running geo2rdr")
info = self._insar.loadProduct( self._insar.slaveSlcCropProduct)
offsetsDir = self.insar.offsetsDirname
if os.path.isdir(offsetsDir):
logger.info('Geometry directory {0} already exists.'.format(offsetsDir))
else:
os.makedirs(offsetsDir)
grdr = createGeo2rdr()
grdr.configure()
planet = info.getInstrument().getPlatform().getPlanet()
grdr.slantRangePixelSpacing = info.getInstrument().getRangePixelSize()
grdr.prf = info.PRF #info.getInstrument().getPulseRepetitionFrequency()
grdr.radarWavelength = info.getInstrument().getRadarWavelength()
grdr.orbit = info.getOrbit()
grdr.width = info.getImage().getWidth()
grdr.length = info.getImage().getLength()
grdr.wireInputPort(name='planet', object=planet)
grdr.lookSide = info.instrument.platform.pointingDirection
grdr.setSensingStart(info.getSensingStart())
grdr.rangeFirstSample = info.startingRange
grdr.numberRangeLooks = 1
grdr.numberAzimuthLooks = 1
if self.insar.slaveGeometrySystem.lower().startswith('native'):
p = [x/info.PRF for x in info._dopplerVsPixel]
else:
p = [0.]
grdr.dopplerCentroidCoeffs = p
grdr.fmrateCoeffs = [0.]
###Input and output files
grdr.rangeOffsetImageName = os.path.join(offsetsDir, self.insar.rangeOffsetFilename)
grdr.azimuthOffsetImageName = os.path.join(offsetsDir, self.insar.azimuthOffsetFilename)
latFilename = os.path.join(self.insar.geometryDirname, self.insar.latFilename + '.full')
lonFilename = os.path.join(self.insar.geometryDirname, self.insar.lonFilename + '.full')
heightFilename = os.path.join(self.insar.geometryDirname, self.insar.heightFilename + '.full')
demImg = isceobj.createImage()
demImg.load(heightFilename + '.xml')
demImg.setAccessMode('READ')
grdr.demImage = demImg
latImg = isceobj.createImage()
latImg.load(latFilename + '.xml')
latImg.setAccessMode('READ')
grdr.latImage = latImg
lonImg = isceobj.createImage()
lonImg.load(lonFilename + '.xml')
lonImg.setAccessMode('READ')
grdr.lonImage = lonImg
grdr.outputPrecision = 'DOUBLE'
grdr.geo2rdr()
return