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# -*- coding: utf-8 -*-
"""
***************************************************************************
RasterCalculator.py
---------------------
Date : May 2014
Copyright : (C) 2014 by Victor Olaya
Email : volayaf at gmail dot com
***************************************************************************
* *
* 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. *
* *
***************************************************************************
"""
from processing.parameters.ParameterMultipleInput import ParameterMultipleInput
from processing.algs.saga.SagaAlgorithm import SagaAlgorithm
from processing.core.GeoAlgorithm import GeoAlgorithm
from processing.parameters.ParameterString import ParameterString
from processing.algs.saga.SagaGroupNameDecorator import SagaGroupNameDecorator
__author__ = 'Victor Olaya'
__date__ = 'May 2014'
__copyright__ = '(C) 2014, Victor Olaya'
# This will get replaced with a git SHA1 when you do a git archive
__revision__ = '$Format:%H$'
from PyQt4 import QtGui
from processing.parameters.ParameterRaster import ParameterRaster
from processing.outputs.OutputRaster import OutputRaster
from processing.tools.system import *
class RasterCalculator(SagaAlgorithm):
FORMULA = "FORMULA"
GRIDS = 'GRIDS'
XGRIDS = 'XGRIDS'
RESULT = "RESULT"
def __init__(self):
self.allowUnmatchingGridExtents = True
self.hardcodedStrings = []
GeoAlgorithm.__init__(self)
def getCopy(self):
newone = RasterCalculator()
newone.provider = self.provider
return newone
def defineCharacteristics(self):
self.name = 'Raster calculator'
self.cmdname = 'Grid Calculator'
self.undecoratedGroup = "grid_calculus"
self.group = SagaGroupNameDecorator.getDecoratedName(self.undecoratedGroup)
grids = ParameterRaster(self.GRIDS, 'Input layers', True)
grids.hidden = True
self.addParameter(grids)
self.addParameter(ParameterMultipleInput(self.XGRIDS, 'Input layers',
ParameterMultipleInput.TYPE_RASTER, False))
self.addParameter(ParameterString(self.FORMULA, "Formula"))
self.addOutput(OutputRaster(self.RESULT, "Result"))
def processAlgorithm(self, progress):
xgrids = self.getParameterValue(self.XGRIDS)
layers = xgrids.split(';')
grid = layers[0]
self.setParameterValue(self.GRIDS, grid)
xgrids = ";".join(layers[1:])
if xgrids == "": xgrids = None
self.setParameterValue(self.XGRIDS, xgrids)
SagaAlgorithm.processAlgorithm(self, progress)
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