[GRASS-SVN] r65665 - grass-addons/grass7/raster/r.import
svn_grass at osgeo.org
svn_grass at osgeo.org
Sun Jul 19 12:25:42 PDT 2015
Author: martinl
Date: 2015-07-19 12:25:42 -0700 (Sun, 19 Jul 2015)
New Revision: 65665
Added:
grass-addons/grass7/raster/r.import/r.import.html
grass-addons/grass7/raster/r.import/r.import.py
Removed:
grass-addons/grass7/raster/r.import/r.in.proj.html
grass-addons/grass7/raster/r.import/r.in.proj.py
Modified:
grass-addons/grass7/raster/r.import/Makefile
Log:
rename r.in.proj to r.import (step 2)
Modified: grass-addons/grass7/raster/r.import/Makefile
===================================================================
--- grass-addons/grass7/raster/r.import/Makefile 2015-07-19 19:24:43 UTC (rev 65664)
+++ grass-addons/grass7/raster/r.import/Makefile 2015-07-19 19:25:42 UTC (rev 65665)
@@ -1,6 +1,6 @@
MODULE_TOPDIR = ../..
-PGM = r.in.proj
+PGM = r.import
include $(MODULE_TOPDIR)/include/Make/Script.make
Copied: grass-addons/grass7/raster/r.import/r.import.html (from rev 65664, grass-addons/grass7/raster/r.import/r.in.proj.html)
===================================================================
--- grass-addons/grass7/raster/r.import/r.import.html (rev 0)
+++ grass-addons/grass7/raster/r.import/r.import.html 2015-07-19 19:25:42 UTC (rev 65665)
@@ -0,0 +1,48 @@
+<h2>DESCRIPTION</h2>
+
+<em>r.import</em> imports selected bands from a GDAL raster datasouce
+into the current location and mapset. If the projection of the input
+does not match the projection of the location, the input is reprojected
+into the current location. If the projection of the input does match
+the projection of the location, the input is imported directly with <a
+href="r.in.gdal.html">r.in.gdal</a>.
+
+<h4>Resolution</h4>
+<em>r.import</em> reports the estimated target resolution for each
+input band. The estimated resolution will usually be some floating
+point number, e.g. 271.301. The target resolution should be the rounded
+estimated resolution, e.g. 250 or 300 instead of 271.301. For latlong
+locations, the resolution might be set to arc seconds, e.g. 1, 3, 7.5,
+15, and 30 arc seconds are commonly used resolutions.
+
+<h4>Resampling methods</h4>
+<b>nearest</b> is the simplest method and the only possible method for
+categorical data.
+<p>
+<b>bilinear</b> does linear interpolation and provides smoother output
+than <b>nearest</b>. <b>bilinear</b> is recommended when reprojecting a
+DEM for hydrological analysis or for surfaces where overshoots must be
+avoided, e.g. precipitation should not become negative.
+<p>
+<b>bicubic</b> produces smoother output than <b>bilinear</b>, at
+the cost of overshoots.
+<p>
+<b>lanczos</b> produces the smoothest output of all methods and
+preserves contrast best. <b>lanczos</b> is recommended for imagery.
+Both <b>bicubic</b> and <b>lanczos</b> preserve linear features. With
+<b>nearest</b> or <b>bilinear</b>, linear features can become zigzag
+features after reprojection.
+
+
+<h2>SEE ALSO</h2>
+
+<em>
+<a href="r.in.gdal.html">r.in.gdal</a>,<br>
+<a href="r.proj.html">r.proj</a>
+</em>
+
+<h2>AUTHORS</h2>
+
+Markus Metz<br>
+
+<p><i>Last changed: $Date: 2015-01-20 20:52:27 +0100 (Tue, 20 Jan 2015) $</i>
Copied: grass-addons/grass7/raster/r.import/r.import.py (from rev 65664, grass-addons/grass7/raster/r.import/r.in.proj.py)
===================================================================
--- grass-addons/grass7/raster/r.import/r.import.py (rev 0)
+++ grass-addons/grass7/raster/r.import/r.import.py 2015-07-19 19:25:42 UTC (rev 65665)
@@ -0,0 +1,357 @@
+#!/usr/bin/env python
+
+############################################################################
+#
+# MODULE: r.import
+#
+# AUTHOR(S): Markus Metz
+#
+# PURPOSE: Import and reproject on the fly
+#
+# COPYRIGHT: (C) 2015 GRASS development team
+#
+# This program is free software under the GNU General
+# Public License (>=v2). Read the file COPYING that
+# comes with GRASS for details.
+#
+#############################################################################
+
+#%module
+#% description: Import raster data using GDAL library and reproject on the fly.
+#% keyword: raster
+#% keyword: import
+#% keyword: projection
+#%end
+#%option G_OPT_F_BIN_INPUT
+#% key: input_file
+#% required: no
+#% multiple: no
+#% description: Name of GDAL dataset (file) to be imported
+#% guisection: Input
+#%end
+#%option G_OPT_M_DIR
+#% key: input_directory
+#% required: no
+#% multiple: no
+#% description: Name of GDAL dataset (directory) to be imported
+#% guisection: Input
+#%end
+#%option
+#% key: band
+#% type: integer
+#% required: no
+#% multiple: yes
+#% description: Input band(s) to select (default is all bands)
+#% guisection: Input
+#%end
+#%option
+#% key: memory
+#% type: integer
+#% required: no
+#% multiple: no
+#% options: 0-2047
+#% label: Maximum memory to be used (in MB)
+#% description: Cache size for raster rows
+#% answer: 300
+#%end
+#%option G_OPT_R_OUTPUT
+#% required: yes
+#% multiple: no
+#% key_desc: name
+#% description: Name for output raster map
+#% guisection: Output
+#%end
+#%option
+#% key: resample
+#% type: string
+#% required: yes
+#% multiple: no
+#% options: nearest,bilinear,bicubic,lanczos,bilinear_f,bicubic_f,lanczos_f
+#% description: Resampling method to use for reprojection
+#% descriptions: nearest;nearest neighbor;bilinear;bilinear interpolation;bicubic;bicubic interpolation;lanczos;lanczos filter;bilinear_f;bilinear interpolation with fallback;bicubic_f;bicubic interpolation with fallback;lanczos_f;lanczos filter with fallback
+#% guisection: Output
+#%end
+#%option
+#% key: extents
+#% type: string
+#% required: yes
+#% multiple: no
+#% options: region,input
+#% description: Ouput raster map extents
+#% descriptions: region;extents of current region;input;extents of input map
+#% guisection: Output
+#%end
+#%option
+#% key: resolution
+#% type: double
+#% required: no
+#% multiple: no
+#% description: Resolution of output raster map (default: current region)
+#% guisection: Output
+#%end
+#%flag
+#% key: i
+#% description: Import and reproject (default: estimate resolution only)
+#% guisection: Output
+#%end
+#%flag
+#% key: n
+#% description: Do not perform region cropping optimization
+#% guisection: Output
+#%end
+
+
+import sys
+import os
+import shutil
+import atexit
+import math
+
+import grass.script as grass
+
+
+def cleanup():
+ # remove temp location
+ if tmploc:
+ path = os.path.join(gisdbase, tmploc)
+ grass.try_rmdir(path)
+ if srcgisrc:
+ grass.try_remove(srcgisrc)
+
+def main():
+ global tmploc, srcgisrc, gisdbase
+
+ output = options['output']
+ method = options['resample']
+ memory = options['memory']
+ do_import = flags['i']
+
+ bands = None
+ if options['band']:
+ bands = options['band']
+ tgtres = None
+ if options['resolution']:
+ tgtres = options['resolution']
+
+ # initialize global vars
+ tmploc = None
+ srcgisrc = None
+ gisdbase = None
+
+ GDALdatasource = None
+ if options['input_file']:
+ GDALdatasource = options['input_file']
+
+ if not GDALdatasource:
+ GDALdatasource = options['input_directory']
+
+ if not GDALdatasource:
+ grass.fatal(_("Either option 'input_file' or option 'input_directory' must be given"))
+
+ grassenv = grass.gisenv()
+ tgtloc = grassenv['LOCATION_NAME']
+ tgtmapset = grassenv['MAPSET']
+ gisdbase = grassenv['GISDBASE']
+ tgtgisrc = os.environ['GISRC']
+ srcgisrc = grass.tempfile()
+
+ tmploc = 'temp_import_location_' + str(os.getpid())
+
+ f = open(srcgisrc, 'w')
+ f.write('DEBUG: 0\n')
+ f.write('MAPSET: PERMANENT\n')
+ f.write('GISDBASE: %s\n' % gisdbase)
+ f.write('LOCATION_NAME: %s\n' % tmploc);
+ f.write('GUI: text\n')
+ f.close()
+
+ tgtsrs = grass.read_command('g.proj', flags = 'j', quiet = True)
+
+ # create temp location from input without import
+ grass.message(_("Creating temporary location for <%s>...") % GDALdatasource)
+ ps = grass.start_command('r.in.gdal', input = GDALdatasource,
+ band = bands, output = output,
+ memory = memory, flags = 'c',
+ location = tmploc, quiet = True)
+ returncode = ps.wait()
+
+ # if it fails, return
+ if returncode != 0:
+ grass.fatal(_("Unable to read GDAL dataset <%s>") % GDALdatasource)
+ sys.exit(1)
+
+ # switch to temp location
+ os.environ['GISRC'] = str(srcgisrc)
+
+ # compare source and target srs
+ insrs = grass.read_command('g.proj', flags = 'j', quiet = True)
+
+ # switch to target location
+ os.environ['GISRC'] = str(tgtgisrc)
+
+ if insrs == tgtsrs:
+ # try r.in.gdal directly
+ grass.message(_("Importing <%s>...") % GDALdatasource)
+ ps = grass.start_command('r.in.gdal', input = GDALdatasource,
+ band = bands, output = output,
+ memory = memory, flags = 'k')
+ returncode = ps.wait()
+
+ if returncode == 0:
+ grass.message(_("Input <%s> successfully imported without reprojection") % GDALdatasource)
+ sys.exit(0)
+ else:
+ grass.fatal(_("Unable to import GDAL dataset <%s>") % GDALdatasource)
+ sys.exit(1)
+
+ # make sure target is not xy
+ if grass.parse_command('g.proj', flags = 'g')['name'] == 'xy_location_unprojected':
+ grass.fatal(_("Coordinate reference system not available for current location <%s>") % tgtloc)
+ sys.exit(1)
+
+ # switch to temp location
+ os.environ['GISRC'] = str(srcgisrc)
+
+ # make sure input is not xy
+ if grass.parse_command('g.proj', flags = 'g')['name'] == 'xy_location_unprojected':
+ grass.fatal(_("Coordinate reference system not available for input <%s>") % GDALdatasource)
+ sys.exit(1)
+
+ # import into temp location
+ grass.message(_("Importing <%s> to temporary location...") % GDALdatasource)
+ ps = grass.start_command('r.in.gdal', input = GDALdatasource,
+ band = bands, output = output,
+ memory = memory, flags = 'k')
+ returncode = ps.wait()
+
+ if returncode != 0:
+ grass.fatal(_("Unable to import GDAL dataset <%s>") % GDALdatasource)
+ sys.exit(1)
+
+ outfiles = grass.list_grouped('rast')['PERMANENT']
+
+ # is output a group?
+ group = False
+ path = os.path.join(gisdbase, tmploc, 'group', output)
+ if os.path.exists(path):
+ group = True
+ path = os.path.join(gisdbase, tmploc, 'group', output, 'POINTS')
+ if os.path.exists(path):
+ grass.fatal(_("Input contains GCPs, rectification is required"))
+ sys.exit(1)
+
+ # switch to target location
+ os.environ['GISRC'] = str(tgtgisrc)
+
+ if tgtres is not None and float(tgtres) <= 0:
+ tgtres = None
+
+ region = grass.region()
+
+ if tgtres is not None:
+ outres = float(tgtres)
+ else:
+ outres = (region['ewres'] + region['nsres']) / 2.0
+
+ rflags = None
+ if flags['n']:
+ rflags = 'n'
+
+ for outfile in outfiles:
+
+ n = region['n']
+ s = region['s']
+ e = region['e']
+ w = region['w']
+
+ grass.use_temp_region()
+
+ if options['extents'] == 'input':
+ # r.proj -g
+ try:
+ tgtextents = grass.read_command('r.proj', location = tmploc,
+ mapset = 'PERMANENT',
+ input = outfile, flags = 'g',
+ memory = memory, quiet = True)
+ except:
+ grass.fatal(_("Unable to get reprojected map extents"))
+ sys.exit(1)
+
+ srcregion = grass.parse_key_val(tgtextents, val_type = float, vsep = ' ')
+ n = srcregion['n']
+ s = srcregion['s']
+ e = srcregion['e']
+ w = srcregion['w']
+
+ grass.run_command('g.region', n = n, s = s, e = e, w = w)
+
+ # v.in.region in tgt
+ vreg = 'vreg_' + str(os.getpid())
+ grass.run_command('v.in.region', output = vreg, quiet = True)
+
+ grass.del_temp_region()
+
+ # reproject to src
+ # switch to temp location
+ os.environ['GISRC'] = str(srcgisrc)
+ ps = grass.start_command('v.proj', input = vreg, output = vreg,
+ location = tgtloc, mapset = tgtmapset, quiet = True)
+ returncode = ps.wait()
+ if returncode != 0:
+ grass.fatal(_("Unable to reproject to source location"))
+ sys.exit(1)
+
+ # set region from region vector
+ grass.run_command('g.region', raster = outfile)
+ grass.run_command('g.region', vector = vreg)
+ # align to fist band
+ grass.run_command('g.region', align = outfile)
+ # get number of cells
+ cells = grass.region()['cells']
+
+ # resolution = sqrt((n - s) * (e - w) / cells)
+ estres = math.sqrt((n - s) * (e - w) / cells)
+
+ os.environ['GISRC'] = str(tgtgisrc)
+ grass.run_command('g.remove', type = 'vector', name = vreg,
+ flags = 'f', quiet = True)
+
+ grass.message(_("Estimated target resolution for input band <%s>: %g") % (outfile, estres))
+ grass.message(_("Specified target resolution: %g") % outres)
+
+ if do_import:
+
+ if options['extents'] == 'input':
+ grass.use_temp_region()
+ grass.run_command('g.region', n = n, s = s, e = e, w = w)
+
+
+ # r.proj
+ grass.message(_("Reprojecting <%s>...") % outfile)
+ ps = grass.start_command('r.proj', location = tmploc,
+ mapset = 'PERMANENT', input = outfile,
+ method = method, resolution = tgtres,
+ memory = memory, flags = rflags, quiet = True)
+ returncode = ps.wait()
+ if returncode != 0:
+ grass.fatal(_("Unable to to reproject raster <%s>") % outfile)
+ sys.exit(1)
+
+ if grass.raster_info(outfile)['min'] is None:
+ grass.fatal(_("The reprojected raster <%s> is empty") % outfile)
+ sys.exit(1)
+
+ if options['extents'] == 'input':
+ grass.del_temp_region()
+
+ if do_import:
+ if group:
+ grass.run_command('i.group', group = output, input = ','.join(outfiles))
+ else:
+ grass.message(_("The input <%s> can be imported and reprojected with the -i flag") % GDALdatasource)
+
+
+if __name__ == "__main__":
+ options, flags = grass.parser()
+ atexit.register(cleanup)
+ main()
Deleted: grass-addons/grass7/raster/r.import/r.in.proj.html
===================================================================
--- grass-addons/grass7/raster/r.import/r.in.proj.html 2015-07-19 19:24:43 UTC (rev 65664)
+++ grass-addons/grass7/raster/r.import/r.in.proj.html 2015-07-19 19:25:42 UTC (rev 65665)
@@ -1,48 +0,0 @@
-<h2>DESCRIPTION</h2>
-
-<em>r.in.proj</em> imports selected bands from a GDAL raster datasouce
-into the current location and mapset. If the projection of the input
-does not match the projection of the location, the input is reprojected
-into the current location. If the projection of the input does match
-the projection of the location, the input is imported directly with <a
-href="r.in.gdal.html">r.in.gdal</a>.
-
-<h4>Resolution</h4>
-<em>r.in.proj</em> reports the estimated target resolution for each
-input band. The estimated resolution will usually be some floating
-point number, e.g. 271.301. The target resolution should be the rounded
-estimated resolution, e.g. 250 or 300 instead of 271.301. For latlong
-locations, the resolution might be set to arc seconds, e.g. 1, 3, 7.5,
-15, and 30 arc seconds are commonly used resolutions.
-
-<h4>Resampling methods</h4>
-<b>nearest</b> is the simplest method and the only possible method for
-categorical data.
-<p>
-<b>bilinear</b> does linear interpolation and provides smoother output
-than <b>nearest</b>. <b>bilinear</b> is recommended when reprojecting a
-DEM for hydrological analysis or for surfaces where overshoots must be
-avoided, e.g. precipitation should not become negative.
-<p>
-<b>bicubic</b> produces smoother output than <b>bilinear</b>, at
-the cost of overshoots.
-<p>
-<b>lanczos</b> produces the smoothest output of all methods and
-preserves contrast best. <b>lanczos</b> is recommended for imagery.
-Both <b>bicubic</b> and <b>lanczos</b> preserve linear features. With
-<b>nearest</b> or <b>bilinear</b>, linear features can become zigzag
-features after reprojection.
-
-
-<h2>SEE ALSO</h2>
-
-<em>
-<a href="r.in.gdal.html">r.in.gdal</a>,<br>
-<a href="r.proj.html">r.proj</a>
-</em>
-
-<h2>AUTHORS</h2>
-
-Markus Metz<br>
-
-<p><i>Last changed: $Date: 2015-01-20 20:52:27 +0100 (Tue, 20 Jan 2015) $</i>
Deleted: grass-addons/grass7/raster/r.import/r.in.proj.py
===================================================================
--- grass-addons/grass7/raster/r.import/r.in.proj.py 2015-07-19 19:24:43 UTC (rev 65664)
+++ grass-addons/grass7/raster/r.import/r.in.proj.py 2015-07-19 19:25:42 UTC (rev 65665)
@@ -1,357 +0,0 @@
-#!/usr/bin/env python
-
-############################################################################
-#
-# MODULE: r.in.proj
-#
-# AUTHOR(S): Markus Metz
-#
-# PURPOSE: Import and reproject on the fly
-#
-# COPYRIGHT: (C) 2015 GRASS development team
-#
-# This program is free software under the GNU General
-# Public License (>=v2). Read the file COPYING that
-# comes with GRASS for details.
-#
-#############################################################################
-
-#%module
-#% description: Import raster data using GDAL library and reproject on the fly.
-#% keyword: raster
-#% keyword: import
-#% keyword: projection
-#%end
-#%option G_OPT_F_BIN_INPUT
-#% key: input_file
-#% required: no
-#% multiple: no
-#% description: Name of GDAL dataset (file) to be imported
-#% guisection: Input
-#%end
-#%option G_OPT_M_DIR
-#% key: input_directory
-#% required: no
-#% multiple: no
-#% description: Name of GDAL dataset (directory) to be imported
-#% guisection: Input
-#%end
-#%option
-#% key: band
-#% type: integer
-#% required: no
-#% multiple: yes
-#% description: Input band(s) to select (default is all bands)
-#% guisection: Input
-#%end
-#%option
-#% key: memory
-#% type: integer
-#% required: no
-#% multiple: no
-#% options: 0-2047
-#% label: Maximum memory to be used (in MB)
-#% description: Cache size for raster rows
-#% answer: 300
-#%end
-#%option G_OPT_R_OUTPUT
-#% required: yes
-#% multiple: no
-#% key_desc: name
-#% description: Name for output raster map
-#% guisection: Output
-#%end
-#%option
-#% key: resample
-#% type: string
-#% required: yes
-#% multiple: no
-#% options: nearest,bilinear,bicubic,lanczos,bilinear_f,bicubic_f,lanczos_f
-#% description: Resampling method to use for reprojection
-#% descriptions: nearest;nearest neighbor;bilinear;bilinear interpolation;bicubic;bicubic interpolation;lanczos;lanczos filter;bilinear_f;bilinear interpolation with fallback;bicubic_f;bicubic interpolation with fallback;lanczos_f;lanczos filter with fallback
-#% guisection: Output
-#%end
-#%option
-#% key: extents
-#% type: string
-#% required: yes
-#% multiple: no
-#% options: region,input
-#% description: Ouput raster map extents
-#% descriptions: region;extents of current region;input;extents of input map
-#% guisection: Output
-#%end
-#%option
-#% key: resolution
-#% type: double
-#% required: no
-#% multiple: no
-#% description: Resolution of output raster map (default: current region)
-#% guisection: Output
-#%end
-#%flag
-#% key: i
-#% description: Import and reproject (default: estimate resolution only)
-#% guisection: Output
-#%end
-#%flag
-#% key: n
-#% description: Do not perform region cropping optimization
-#% guisection: Output
-#%end
-
-
-import sys
-import os
-import shutil
-import atexit
-import math
-
-import grass.script as grass
-
-
-def cleanup():
- # remove temp location
- if tmploc:
- path = os.path.join(gisdbase, tmploc)
- grass.try_rmdir(path)
- if srcgisrc:
- grass.try_remove(srcgisrc)
-
-def main():
- global tmploc, srcgisrc, gisdbase
-
- output = options['output']
- method = options['resample']
- memory = options['memory']
- do_import = flags['i']
-
- bands = None
- if options['band']:
- bands = options['band']
- tgtres = None
- if options['resolution']:
- tgtres = options['resolution']
-
- # initialize global vars
- tmploc = None
- srcgisrc = None
- gisdbase = None
-
- GDALdatasource = None
- if options['input_file']:
- GDALdatasource = options['input_file']
-
- if not GDALdatasource:
- GDALdatasource = options['input_directory']
-
- if not GDALdatasource:
- grass.fatal(_("Either option 'input_file' or option 'input_directory' must be given"))
-
- grassenv = grass.gisenv()
- tgtloc = grassenv['LOCATION_NAME']
- tgtmapset = grassenv['MAPSET']
- gisdbase = grassenv['GISDBASE']
- tgtgisrc = os.environ['GISRC']
- srcgisrc = grass.tempfile()
-
- tmploc = 'temp_import_location_' + str(os.getpid())
-
- f = open(srcgisrc, 'w')
- f.write('DEBUG: 0\n')
- f.write('MAPSET: PERMANENT\n')
- f.write('GISDBASE: %s\n' % gisdbase)
- f.write('LOCATION_NAME: %s\n' % tmploc);
- f.write('GUI: text\n')
- f.close()
-
- tgtsrs = grass.read_command('g.proj', flags = 'j', quiet = True)
-
- # create temp location from input without import
- grass.message(_("Creating temporary location for <%s>...") % GDALdatasource)
- ps = grass.start_command('r.in.gdal', input = GDALdatasource,
- band = bands, output = output,
- memory = memory, flags = 'c',
- location = tmploc, quiet = True)
- returncode = ps.wait()
-
- # if it fails, return
- if returncode != 0:
- grass.fatal(_("Unable to read GDAL dataset <%s>") % GDALdatasource)
- sys.exit(1)
-
- # switch to temp location
- os.environ['GISRC'] = str(srcgisrc)
-
- # compare source and target srs
- insrs = grass.read_command('g.proj', flags = 'j', quiet = True)
-
- # switch to target location
- os.environ['GISRC'] = str(tgtgisrc)
-
- if insrs == tgtsrs:
- # try r.in.gdal directly
- grass.message(_("Importing <%s>...") % GDALdatasource)
- ps = grass.start_command('r.in.gdal', input = GDALdatasource,
- band = bands, output = output,
- memory = memory, flags = 'k')
- returncode = ps.wait()
-
- if returncode == 0:
- grass.message(_("Input <%s> successfully imported without reprojection") % GDALdatasource)
- sys.exit(0)
- else:
- grass.fatal(_("Unable to import GDAL dataset <%s>") % GDALdatasource)
- sys.exit(1)
-
- # make sure target is not xy
- if grass.parse_command('g.proj', flags = 'g')['name'] == 'xy_location_unprojected':
- grass.fatal(_("Coordinate reference system not available for current location <%s>") % tgtloc)
- sys.exit(1)
-
- # switch to temp location
- os.environ['GISRC'] = str(srcgisrc)
-
- # make sure input is not xy
- if grass.parse_command('g.proj', flags = 'g')['name'] == 'xy_location_unprojected':
- grass.fatal(_("Coordinate reference system not available for input <%s>") % GDALdatasource)
- sys.exit(1)
-
- # import into temp location
- grass.message(_("Importing <%s> to temporary location...") % GDALdatasource)
- ps = grass.start_command('r.in.gdal', input = GDALdatasource,
- band = bands, output = output,
- memory = memory, flags = 'k')
- returncode = ps.wait()
-
- if returncode != 0:
- grass.fatal(_("Unable to import GDAL dataset <%s>") % GDALdatasource)
- sys.exit(1)
-
- outfiles = grass.list_grouped('rast')['PERMANENT']
-
- # is output a group?
- group = False
- path = os.path.join(gisdbase, tmploc, 'group', output)
- if os.path.exists(path):
- group = True
- path = os.path.join(gisdbase, tmploc, 'group', output, 'POINTS')
- if os.path.exists(path):
- grass.fatal(_("Input contains GCPs, rectification is required"))
- sys.exit(1)
-
- # switch to target location
- os.environ['GISRC'] = str(tgtgisrc)
-
- if tgtres is not None and float(tgtres) <= 0:
- tgtres = None
-
- region = grass.region()
-
- if tgtres is not None:
- outres = float(tgtres)
- else:
- outres = (region['ewres'] + region['nsres']) / 2.0
-
- rflags = None
- if flags['n']:
- rflags = 'n'
-
- for outfile in outfiles:
-
- n = region['n']
- s = region['s']
- e = region['e']
- w = region['w']
-
- grass.use_temp_region()
-
- if options['extents'] == 'input':
- # r.proj -g
- try:
- tgtextents = grass.read_command('r.proj', location = tmploc,
- mapset = 'PERMANENT',
- input = outfile, flags = 'g',
- memory = memory, quiet = True)
- except:
- grass.fatal(_("Unable to get reprojected map extents"))
- sys.exit(1)
-
- srcregion = grass.parse_key_val(tgtextents, val_type = float, vsep = ' ')
- n = srcregion['n']
- s = srcregion['s']
- e = srcregion['e']
- w = srcregion['w']
-
- grass.run_command('g.region', n = n, s = s, e = e, w = w)
-
- # v.in.region in tgt
- vreg = 'vreg_' + str(os.getpid())
- grass.run_command('v.in.region', output = vreg, quiet = True)
-
- grass.del_temp_region()
-
- # reproject to src
- # switch to temp location
- os.environ['GISRC'] = str(srcgisrc)
- ps = grass.start_command('v.proj', input = vreg, output = vreg,
- location = tgtloc, mapset = tgtmapset, quiet = True)
- returncode = ps.wait()
- if returncode != 0:
- grass.fatal(_("Unable to reproject to source location"))
- sys.exit(1)
-
- # set region from region vector
- grass.run_command('g.region', raster = outfile)
- grass.run_command('g.region', vector = vreg)
- # align to fist band
- grass.run_command('g.region', align = outfile)
- # get number of cells
- cells = grass.region()['cells']
-
- # resolution = sqrt((n - s) * (e - w) / cells)
- estres = math.sqrt((n - s) * (e - w) / cells)
-
- os.environ['GISRC'] = str(tgtgisrc)
- grass.run_command('g.remove', type = 'vector', name = vreg,
- flags = 'f', quiet = True)
-
- grass.message(_("Estimated target resolution for input band <%s>: %g") % (outfile, estres))
- grass.message(_("Specified target resolution: %g") % outres)
-
- if do_import:
-
- if options['extents'] == 'input':
- grass.use_temp_region()
- grass.run_command('g.region', n = n, s = s, e = e, w = w)
-
-
- # r.proj
- grass.message(_("Reprojecting <%s>...") % outfile)
- ps = grass.start_command('r.proj', location = tmploc,
- mapset = 'PERMANENT', input = outfile,
- method = method, resolution = tgtres,
- memory = memory, flags = rflags, quiet = True)
- returncode = ps.wait()
- if returncode != 0:
- grass.fatal(_("Unable to to reproject raster <%s>") % outfile)
- sys.exit(1)
-
- if grass.raster_info(outfile)['min'] is None:
- grass.fatal(_("The reprojected raster <%s> is empty") % outfile)
- sys.exit(1)
-
- if options['extents'] == 'input':
- grass.del_temp_region()
-
- if do_import:
- if group:
- grass.run_command('i.group', group = output, input = ','.join(outfiles))
- else:
- grass.message(_("The input <%s> can be imported and reprojected with the -i flag") % GDALdatasource)
-
-
-if __name__ == "__main__":
- options, flags = grass.parser()
- atexit.register(cleanup)
- main()
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