mirror of
https://github.com/qgis/QGIS.git
synced 2025-02-25 00:58:06 -05:00
80 lines
3.0 KiB
Python
80 lines
3.0 KiB
Python
# -*- 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)
|