mirror of
https://github.com/qgis/QGIS.git
synced 2025-02-27 00:33:48 -05:00
95 lines
3.7 KiB
Python
95 lines
3.7 KiB
Python
# -*- coding: utf-8 -*-
|
|
|
|
"""
|
|
***************************************************************************
|
|
aspect.py
|
|
---------------------
|
|
Date : October 2013
|
|
Copyright : (C) 2013 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. *
|
|
* *
|
|
***************************************************************************
|
|
"""
|
|
from builtins import str
|
|
|
|
__author__ = 'Alexander Bruy'
|
|
__date__ = 'October 2013'
|
|
__copyright__ = '(C) 2013, Alexander Bruy'
|
|
|
|
# This will get replaced with a git SHA1 when you do a git archive
|
|
|
|
__revision__ = '$Format:%H$'
|
|
|
|
import os
|
|
|
|
from processing.algs.gdal.GdalAlgorithm import GdalAlgorithm
|
|
from processing.core.parameters import ParameterRaster
|
|
from processing.core.parameters import ParameterBoolean
|
|
from processing.core.parameters import ParameterNumber
|
|
from processing.core.outputs import OutputRaster
|
|
from processing.algs.gdal.GdalUtils import GdalUtils
|
|
|
|
pluginPath = os.path.split(os.path.split(os.path.dirname(__file__))[0])[0]
|
|
|
|
|
|
class aspect(GdalAlgorithm):
|
|
|
|
INPUT = 'INPUT'
|
|
BAND = 'BAND'
|
|
COMPUTE_EDGES = 'COMPUTE_EDGES'
|
|
ZEVENBERGEN = 'ZEVENBERGEN'
|
|
TRIG_ANGLE = 'TRIG_ANGLE'
|
|
ZERO_FLAT = 'ZERO_FLAT'
|
|
OUTPUT = 'OUTPUT'
|
|
|
|
def defineCharacteristics(self):
|
|
self.name, self.i18n_name = self.trAlgorithm('Aspect')
|
|
self.group, self.i18n_group = self.trAlgorithm('[GDAL] Analysis')
|
|
self.addParameter(ParameterRaster(self.INPUT, self.tr('Input layer')))
|
|
self.addParameter(ParameterNumber(
|
|
self.BAND, self.tr('Band number'), 1, 99, 1))
|
|
self.addParameter(ParameterBoolean(
|
|
self.COMPUTE_EDGES, self.tr('Compute edges'), False))
|
|
self.addParameter(ParameterBoolean(self.ZEVENBERGEN,
|
|
self.tr("Use Zevenbergen&Thorne formula (instead of the Horn's one)"),
|
|
False))
|
|
self.addParameter(ParameterBoolean(self.TRIG_ANGLE,
|
|
self.tr('Return trigonometric angle (instead of azimuth)'), False))
|
|
self.addParameter(ParameterBoolean(self.ZERO_FLAT,
|
|
self.tr('Return 0 for flat (instead of -9999)'), False))
|
|
|
|
self.addOutput(OutputRaster(self.OUTPUT, self.tr('Aspect')))
|
|
|
|
def getConsoleCommands(self):
|
|
arguments = ['aspect']
|
|
arguments.append(str(self.getParameterValue(self.INPUT)))
|
|
output = str(self.getOutputValue(self.OUTPUT))
|
|
arguments.append(output)
|
|
|
|
arguments.append('-of')
|
|
arguments.append(GdalUtils.getFormatShortNameFromFilename(output))
|
|
|
|
arguments.append('-b')
|
|
arguments.append(str(self.getParameterValue(self.BAND)))
|
|
|
|
if self.getParameterValue(self.COMPUTE_EDGES):
|
|
arguments.append('-compute_edges')
|
|
|
|
if self.getParameterValue(self.ZEVENBERGEN):
|
|
arguments.append('-alg')
|
|
arguments.append('ZevenbergenThorne')
|
|
|
|
if self.getParameterValue(self.TRIG_ANGLE):
|
|
arguments.append('-trigonometric')
|
|
|
|
if self.getParameterValue(self.ZERO_FLAT):
|
|
arguments.append('-zero_for_flat')
|
|
|
|
return ['gdaldem', GdalUtils.escapeAndJoin(arguments)]
|