Skip to content
Permalink
Browse files

Add r.what.color algorithm

  • Loading branch information
Médéric RIBREUX
Médéric RIBREUX committed Feb 27, 2016
1 parent 717687b commit 91f3f1892b8ba1dee3dfc0f0d0588a92130ffb26
@@ -0,0 +1,8 @@
r.what.color
Queries colors for a raster map layer.
Raster (r.*)
ParameterRaster|input|Raster map to query colors|False
ParameterString|value|Values to query colors for (comma separated list)|None|False|False
ParameterString|format|Output format (printf-style)|None|False|True
OutputFile|output|Colors file

@@ -0,0 +1,58 @@
# -*- coding: utf-8 -*-

"""
***************************************************************************
r_what_color.py
---------------
Date : February 2016
Copyright : (C) 2016 by Médéric Ribreux
Email : medspx at medspx dot fr
***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************
"""

__author__ = 'Médéric Ribreux'
__date__ = 'February 2016'
__copyright__ = '(C) 2016, Médéric Ribreux'

# This will get replaced with a git SHA1 when you do a git archive

__revision__ = '$Format:%H$'


def processInputs(alg):
# We need to import all the bands and color tables of the input rasters
raster = alg.getParameterValue('input')
if raster in alg.exportedLayers.keys():
return

destFilename = alg.getTempFilename()
alg.exportedLayers[raster] = destFilename
command = 'r.in.gdal input={} output={} --overwrite -o'.format(raster, destFilename)
alg.commands.append(command)

alg.setSessionProjectionFromProject(alg.commands)

region = unicode(alg.getParameterValue(alg.GRASS_REGION_EXTENT_PARAMETER))
regionCoords = region.split(',')
command = 'g.region'
command += ' -a'
command += ' n=' + unicode(regionCoords[3])
command += ' s=' + unicode(regionCoords[2])
command += ' e=' + unicode(regionCoords[1])
command += ' w=' + unicode(regionCoords[0])
cellsize = alg.getParameterValue(alg.GRASS_REGION_CELLSIZE_PARAMETER)
if cellsize:
command += ' res=' + unicode(cellsize)
else:
command += ' res=' + unicode(alg.getDefaultCellsize())
alignToResolution = alg.getParameterValue(alg.GRASS_REGION_ALIGN_TO_RESOLUTION)
if alignToResolution:
command += ' -a'
alg.commands.append(command)

0 comments on commit 91f3f18

Please sign in to comment.
You can’t perform that action at this time.