GetNLCDForDEMExtent Namespace Reference

Extract a tile, the extent derived from the DEM of the project, of NLCD 2006 data from a locally stored copy of the entire NLCD 2006 dataset. More...

Variables
tuple	parser = argparse.ArgumentParser(description='Get NLCD data (in GeoTIFF format) for DEM extent from a local copy of the entire NLCD 2006 dataset.')
string	help = 'The configuration file'
tuple	args = parser.parse_args()
tuple	cmdline = GenericMetadata.getCommandLine()
	configFile = None
tuple	context = Context(args.projectDir, configFile)
	outfile = args.outfile
string	tileFilename = "%s.tif"
tuple	manifest = GenericMetadata.readManifestEntries(context)
list	demFilename = manifest['dem']
tuple	demFilepath = os.path.join(context.projectDir, demFilename)
tuple	bbox = getRasterExtentAsBbox(demFilepath)
tuple	studyArea = GenericMetadata.readStudyAreaEntries(context)
list	outputrasterresolutionX = studyArea['dem_res_x']
list	outputrasterresolutionY = studyArea['dem_res_y']
list	srs = studyArea['dem_srs']
string	nlcdURL = 'http://gisdata.usgs.gov/TDDS/DownloadFile.php?TYPE=nlcd2006&FNAME=NLCD2006_landcover_4-20-11_se5.zip'
tuple	nlcdRaster = context.config.get('NLCD', 'PATH_OF_NLCD2006')
	resx = outputrasterresolutionY,
string	coverage = 'NLCD2006'
tuple	asset = AssetProvenance(GenericMetadata.MANIFEST_SECTION)

Detailed Description

Extract a tile, the extent derived from the DEM of the project, of NLCD 2006 data from a locally stored copy of the entire NLCD 2006 dataset.

This software is provided free of charge under the New BSD License. Please see the following license information:

Copyright (c) 2013, University of North Carolina at Chapel Hill All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

• Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
• Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
• Neither the name of the University of North Carolina at Chapel Hill nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Author

Brian Miles brian.nosp@m._mil.nosp@m.es@un.nosp@m.c.ed.nosp@m.u

Pre conditions

1. Configuration file must define the following sections and values: 'GDAL/OGR', 'PATH_OF_GDAL_WARP' 'NLCD', 'PATH_OF_NLCD2006'
2. following metadata entry(ies) must be present in the manifest section of the metadata associated with the project directory: dem
3. The following metadata entry(ies) must be present in the study area section of the metadata associated with the project directory: bbox_wgs84 dem_res_x dem_res_y dem_srs

Post conditions

1. Will write the following entry(ies) to the manifest section of metadata associated with the project directory: landcover [the name of the landcover raster]
2. Will write the following entry(ies) to the study area section of metadata associated with the project directory: landcover_type=NLCD2006

Usage:

python ./GetNLCDForDEMExtent.py -p /path/to/project_dir

Variable Documentation

tuple GetNLCDForDEMExtent.args = parser.parse_args()

tuple GetNLCDForDEMExtent.asset = AssetProvenance(GenericMetadata.MANIFEST_SECTION)

tuple GetNLCDForDEMExtent.bbox = getRasterExtentAsBbox(demFilepath)

tuple GetNLCDForDEMExtent.cmdline = GenericMetadata.getCommandLine()

GetNLCDForDEMExtent.configFile = None

tuple GetNLCDForDEMExtent.context = Context(args.projectDir, configFile)

string GetNLCDForDEMExtent.coverage = 'NLCD2006'

list GetNLCDForDEMExtent.demFilename = manifest['dem']

tuple GetNLCDForDEMExtent.demFilepath = os.path.join(context.projectDir, demFilename)

string GetNLCDForDEMExtent.help = 'The configuration file'

tuple GetNLCDForDEMExtent.manifest = GenericMetadata.readManifestEntries(context)

tuple GetNLCDForDEMExtent.nlcdRaster = context.config.get('NLCD', 'PATH_OF_NLCD2006')

string GetNLCDForDEMExtent.nlcdURL = 'http://gisdata.usgs.gov/TDDS/DownloadFile.php?TYPE=nlcd2006&FNAME=NLCD2006_landcover_4-20-11_se5.zip'

string GetNLCDForDEMExtent.outfile = args.outfile

list GetNLCDForDEMExtent.outputrasterresolutionX = studyArea['dem_res_x']

list GetNLCDForDEMExtent.outputrasterresolutionY = studyArea['dem_res_y']

tuple GetNLCDForDEMExtent.parser = argparse.ArgumentParser(description='Get NLCD data (in GeoTIFF format) for DEM extent from a local copy of the entire NLCD 2006 dataset.')

GetNLCDForDEMExtent.resx = outputrasterresolutionY,

list GetNLCDForDEMExtent.srs = studyArea['dem_srs']

tuple GetNLCDForDEMExtent.studyArea = GenericMetadata.readStudyAreaEntries(context)

string GetNLCDForDEMExtent.tileFilename = "%s.tif"