ISCE_INSAR/components/isceobj/InsarProc/runRgoffset.py

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2019-01-16 19:40:08 +00:00
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# 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: Brett George
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
import logging
import isceobj
from iscesys.ImageUtil.ImageUtil import ImageUtil as IU
logger = logging.getLogger('isce.insar.runRgoffset')
def runRgoffset(self):
firstAc = self._insar.getFirstSampleAcross()
firstDown = self._insar.getFirstSampleDown()
numLocationAcross = self._insar.getNumberLocationAcross()
numLocationDown = self._insar.getNumberLocationDown()
imageAmp = self._insar.getResampAmpImage()
objAmp = isceobj.createIntImage()
IU.copyAttributes(imageAmp, objAmp)
objAmp.setAccessMode('read')
objAmp.createImage()
widthAmp = objAmp.getWidth()
intLength = objAmp.getLength()
lastAc = widthAmp - firstAc
lastDown = intLength - firstDown
imageSim = self._insar.getSimAmpImage()
objSim = isceobj.createImage()
IU.copyAttributes(imageSim, objSim)
objSim.setAccessMode('read')
objSim.createImage()
objOffset = isceobj.createEstimateOffsets(name='insarapp_intsim_estoffset')
objOffset.configure()
if objOffset.acrossGrossOffset is not None:
coarseAcross = objOffset.acrossGrossOffset
else:
coarseAcross = 0
if objOffset.downGrossOffset is not None:
coarseDown = objOffset.downGrossOffset
else:
coarseDown = 0
if objOffset.searchWindowSize is None:
objOffset.setSearchWindowSize(self.offsetSearchWindowSize, self.sensorName)
margin = 2*objOffset.searchWindowSize + objOffset.windowSize
simWidth = objSim.getWidth()
simLength = objSim.getLength()
firAc = max(firstAc, -coarseAcross) + margin + 1
firDn = max(firstDown, -coarseDown) + margin + 1
lastAc = int(min(widthAmp, simWidth-coarseAcross) - margin - 1)
lastDn = int(min(intLength, simLength-coarseDown) - margin - 1)
if not objOffset.firstSampleAcross:
objOffset.setFirstSampleAcross(firAc)
if not objOffset.lastSampleAcross:
objOffset.setLastSampleAcross(lastAc)
if not objOffset.numberLocationAcross:
objOffset.setNumberLocationAcross(numLocationAcross)
if not objOffset.firstSampleDown:
objOffset.setFirstSampleDown(firDn)
if not objOffset.lastSampleDown:
objOffset.setLastSampleDown(lastDn)
if not objOffset.numberLocationDown:
objOffset.setNumberLocationDown(numLocationDown)
#set the tag used in the outfile. each message is precided by this tag
#is the writer is not of "file" type the call has no effect
self._stdWriter.setFileTag("rgoffset", "log")
self._stdWriter.setFileTag("rgoffset", "err")
self._stdWriter.setFileTag("rgoffset", "out")
objOffset.setStdWriter(self._stdWriter)
prf = self._insar.getMasterFrame().getInstrument().getPulseRepetitionFrequency()
objOffset.setFirstPRF(prf)
objOffset.setSecondPRF(prf)
if not objOffset.acrossGrossOffset:
objOffset.setAcrossGrossOffset(0)
if not objOffset.downGrossOffset:
objOffset.setDownGrossOffset(0)
objOffset.estimateoffsets(image1=objSim, image2=objAmp, band1=0, band2=0)
# Record the inputs and outputs
from isceobj.Catalog import recordInputsAndOutputs
recordInputsAndOutputs(self._insar.procDoc, objOffset, "runRgoffset", \
logger, "runRgoffset")
self._insar.setOffsetField(objOffset.getOffsetField())
self._insar.setRefinedOffsetField(objOffset.getOffsetField())
objAmp.finalizeImage()
objSim.finalizeImage()