mirror of
https://github.com/qgis/QGIS.git
synced 2025-03-06 00:05:02 -05:00
9d04f87249
The previous naming was too easily confused with processing outputs. Rename them to QgsProcessingParameterFileDestination, etc... to make it clearer what they are used for.
90 lines
3.4 KiB
Python
90 lines
3.4 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 qgis.core import (QgsProcessingParameterRasterLayer,
|
|
QgsProcessingParameterNumber,
|
|
QgsProcessingParameterRasterDestination,
|
|
QgsProcessingOutputRasterLayer,
|
|
QgsFeatureSink)
|
|
from processing.algs.qgis.QgisAlgorithm import QgisAlgorithm
|
|
from processing.core.parameters import ParameterRaster
|
|
from processing.core.parameters import ParameterNumber
|
|
from processing.core.outputs import OutputRaster
|
|
from processing.tools import raster
|
|
from processing.tools.dataobjects import exportRasterLayer
|
|
|
|
pluginPath = os.path.split(os.path.split(os.path.dirname(__file__))[0])[0]
|
|
|
|
|
|
class Aspect(QgisAlgorithm):
|
|
|
|
INPUT = 'INPUT'
|
|
Z_FACTOR = 'Z_FACTOR'
|
|
OUTPUT = 'OUTPUT'
|
|
|
|
def icon(self):
|
|
return QIcon(os.path.join(pluginPath, 'images', 'dem.png'))
|
|
|
|
def group(self):
|
|
return self.tr('Raster terrain analysis')
|
|
|
|
def __init__(self):
|
|
super().__init__()
|
|
|
|
self.addParameter(QgsProcessingParameterRasterLayer(self.INPUT,
|
|
self.tr('Elevation layer')))
|
|
self.addParameter(QgsProcessingParameterNumber(self.Z_FACTOR,
|
|
self.tr('Z factor'), QgsProcessingParameterNumber.Double,
|
|
1, False, 1, 999999.99))
|
|
self.addParameter(QgsProcessingParameterRasterDestination(self.OUTPUT, self.tr('Aspect')))
|
|
self.addOutput(QgsProcessingOutputRasterLayer(self.OUTPUT, self.tr('Aspect')))
|
|
|
|
def name(self):
|
|
return 'aspect'
|
|
|
|
def displayName(self):
|
|
return self.tr('Aspect')
|
|
|
|
def processAlgorithm(self, parameters, context, feedback):
|
|
inputFile = exportRasterLayer(self.parameterAsRasterLayer(parameters, self.INPUT, context))
|
|
zFactor = self.parameterAsDouble(parameters, self.Z_FACTOR, context)
|
|
|
|
outputFile = self.parameterAsOutputLayer(parameters, self.OUTPUT, context)
|
|
|
|
outputFormat = raster.formatShortNameFromFileName(outputFile)
|
|
|
|
aspect = QgsAspectFilter(inputFile, outputFile, outputFormat)
|
|
aspect.setZFactor(zFactor)
|
|
aspect.processRaster(feedback)
|
|
|
|
return {self.OUTPUT: outputFile}
|