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Add r.tile algorithm

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Médéric RIBREUX
Médéric RIBREUX committed Feb 27, 2016
1 parent 3a9846b commit 71ce96beb02a2d5624fd2fffd9f18039956842f7
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r.tile
Splits a raster map into tiles
Raster (r.*)
ParameterRaster|input|Name of input raster map|False
ParameterString|output|Output base name of rasters|None|False|False
ParameterNumber|width|Width of tiles (columns)|1|None|1024|True
ParameterNumber|height|Height of tiles (rows)|1|None|1024|True
OutputDirectory|output_dir|Tiles Directory
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# -*- coding: utf-8 -*-

"""
***************************************************************************
r_tile.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 processCommand(alg):
# Remove output for command
output_dir = alg.getOutputFromName('output_dir')
alg.removeOutputFromName('output_dir')
alg.processCommand()
alg.addOutput(output_dir)


def processOutputs(alg):
# All the named rasters should be extracted to output_dir
basename = alg.getParameterValue('output')
output_dir = alg.getOutputValue('output_dir')

# Get the list of rasters matching the basename
commands = ["for r in $(g.list type=rast pattern='{}*'); do".format(basename)]
commands.append(" r.out.gdal -t input=${{r}} output={}/${{r}}.tif createopt=\"TFW=YES,COMPRESS=LZW\"".format(output_dir))
commands.append("done")
alg.commands.extend(commands)

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