mirror of
https://github.com/qgis/QGIS.git
synced 2025-10-30 00:07:09 -04:00
73 lines
2.7 KiB
Python
73 lines
2.7 KiB
Python
# -*- coding: utf-8 -*-
|
|
|
|
"""
|
|
***************************************************************************
|
|
Aspect.py
|
|
---------------------
|
|
Date : October 2016
|
|
Copyright : (C) 2016 by Alexander Bruy
|
|
Email : alexander dot bruy 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. *
|
|
* *
|
|
***************************************************************************
|
|
"""
|
|
|
|
__author__ = 'Alexander Bruy'
|
|
__date__ = 'October 2016'
|
|
__copyright__ = '(C) 2016, Alexander Bruy'
|
|
|
|
# This will get replaced with a git SHA1 when you do a git archive
|
|
|
|
__revision__ = '$Format:%H$'
|
|
|
|
import os
|
|
|
|
from qgis.PyQt.QtGui import QIcon
|
|
|
|
from qgis.analysis import QgsAspectFilter
|
|
|
|
from processing.core.GeoAlgorithm import GeoAlgorithm
|
|
from processing.core.parameters import ParameterRaster
|
|
from processing.core.parameters import ParameterNumber
|
|
from processing.core.outputs import OutputRaster
|
|
from processing.tools import raster
|
|
|
|
pluginPath = os.path.split(os.path.split(os.path.dirname(__file__))[0])[0]
|
|
|
|
|
|
class Aspect(GeoAlgorithm):
|
|
|
|
INPUT_LAYER = 'INPUT_LAYER'
|
|
Z_FACTOR = 'Z_FACTOR'
|
|
OUTPUT_LAYER = 'OUTPUT_LAYER'
|
|
|
|
def getIcon(self):
|
|
return QIcon(os.path.join(pluginPath, 'images', 'dem.png'))
|
|
|
|
def defineCharacteristics(self):
|
|
self.name, self.i18n_name = self.trAlgorithm('Aspect')
|
|
self.group, self.i18n_group = self.trAlgorithm('Raster terrain analysis')
|
|
|
|
self.addParameter(ParameterRaster(self.INPUT_LAYER,
|
|
self.tr('Elevation layer')))
|
|
self.addParameter(ParameterNumber(self.Z_FACTOR,
|
|
self.tr('Z factor'), 1.0, 999999.99, 1.0))
|
|
self.addOutput(OutputRaster(self.OUTPUT_LAYER,
|
|
self.tr('Aspect')))
|
|
|
|
def processAlgorithm(self, progress):
|
|
inputFile = self.getParameterValue(self.INPUT_LAYER)
|
|
zFactor = self.getParameterValue(self.Z_FACTOR)
|
|
outputFile = self.getOutputValue(self.OUTPUT_LAYER)
|
|
|
|
outputFormat = raster.formatShortNameFromFileName(outputFile)
|
|
|
|
aspect = QgsAspectFilter(inputFile, outputFile, outputFormat)
|
|
aspect.setZFactor(zFactor)
|
|
aspect.processRaster(None)
|