124 lines
4.9 KiB
Python
124 lines
4.9 KiB
Python
#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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# Copyright 2012 California Institute of Technology. ALL RIGHTS RESERVED.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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# United States Government Sponsorship acknowledged. This software is subject to
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# U.S. export control laws and regulations and has been classified as 'EAR99 NLR'
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# (No [Export] License Required except when exporting to an embargoed country,
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# end user, or in support of a prohibited end use). By downloading this software,
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# the user agrees to comply with all applicable U.S. export laws and regulations.
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# The user has the responsibility to obtain export licenses, or other export
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# authority as may be required before exporting this software to any 'EAR99'
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# embargoed foreign country or citizen of those countries.
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#
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# Author: Brett George
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#~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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import logging
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import stdproc
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logger = logging.getLogger('isce.insar.runSetmocomppath')
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def averageHeightAboveElp(planet, peg, orbit):
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elp = planet.get_elp()
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elp.setSCH(peg.latitude, peg.longitude, peg.heading)
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t, posXYZ, velXYZ, offset = orbit._unpackOrbit()
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hsum = 0.
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for xyz in posXYZ:
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llh = elp.xyz_to_llh(xyz)
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hsum += llh[2]
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print("averageHeightAboveElp: hsum, len(posXYZ), havg = ",
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hsum, len(posXYZ), havg)
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return hsum/len(posXYZ)
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def sVelocityAtMidOrbit(planet, peg, orbit):
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elp = planet.get_elp()
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elp.setSCH(peg.latitude, peg.longitude, peg.heading)
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t, posXYZ, velXYZ, offset = orbit._unpackOrbit()
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sch, vsch = elp.xyzdot_to_schdot(
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posXYZ[len(posXYZ)/2+1], velXYZ[len(posXYZ)/2+1])
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print("sVelocityAtPeg: len(posXYZ)/2., vsch = ",
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len(posXYZ)/2+1, vsch)
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return vsch[0]
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def runSetmocomppath(self, peg=None):
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from isceobj.Location.Peg import Peg
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from stdproc.orbit.pegManipulator import averagePeg
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from isceobj.Catalog import recordInputsAndOutputs
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logger.info("Selecting individual peg points")
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planet = self._insar.getReferenceFrame().getInstrument().getPlatform().getPlanet()
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referenceOrbit = self._insar.getReferenceOrbit()
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secondaryOrbit = self._insar.getSecondaryOrbit()
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if peg:
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self._insar.setPeg(peg)
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logger.info("Using the given peg = %r", peg)
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self._insar.setFirstAverageHeight(
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averageHeightAboveElp(planet, peg, referenceOrbit))
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self._insar.setSecondAverageHeight(
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averageHeightAboveElp(planet, peg, secondaryOrbit))
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self._insar.setFirstProcVelocity(
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sVelocityAtMidOrbit(planet, peg, referenceOrbit))
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self._insar.setSecondProcVelocity(
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sVelocityAtMidOrbit(planet, peg, secondaryOrbit))
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return
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pegpts = []
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for orbitObj, order in zip((referenceOrbit, secondaryOrbit)
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,('First', 'Second')):
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objGetpeg = stdproc.createGetpeg()
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if peg:
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objGetpeg.setPeg(peg)
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objGetpeg.wireInputPort(name='planet', object=planet)
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objGetpeg.wireInputPort(name='Orbit', object=orbitObj)
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self._stdWriter.setFileTag("getpeg", "log")
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self._stdWriter.setFileTag("getpeg", "err")
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self._stdWriter.setFileTag("getpeg", "out")
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objGetpeg.setStdWriter(self._stdWriter)
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logger.info('Peg points are computed for individual SAR scenes.')
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objGetpeg.estimatePeg()
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pegpts.append(objGetpeg.getPeg())
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recordInputsAndOutputs(self._insar.procDoc, objGetpeg, "getpeg", \
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logger, "runSetmocomppath")
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#Piyush
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# I set these values here for the sake of continuity, but they need to be updated
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# in orbit2sch as the correct peg point is not yet known
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getattr(self._insar,'set%sAverageHeight'%(order))(objGetpeg.getAverageHeight())
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getattr(self._insar,'set%sProcVelocity'%(order))(objGetpeg.getProcVelocity())
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logger.info('Combining individual peg points.')
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peg = averagePeg(pegpts, planet)
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if self.pegSelect.upper() == 'REFERENCE':
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logger.info('Using reference info for peg point')
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self._insar.setPeg(pegpts[0])
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elif self.pegSelect.upper() == 'SECONDARY':
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logger.info('Using secondary infor for peg point')
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self._insar.setPeg(pegpts[1])
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elif self.pegSelect.upper() == 'AVERAGE':
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logger.info('Using average peg point')
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self._insar.setPeg(peg)
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else:
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raise Exception('Unknown peg selection method')
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