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doDEM.py
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doDEM.py
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# -*- coding: utf-8 -*-
"""
***************************************************************************
doDEM.py
---------------------
Date : March 2011
Copyright : (C) 2011 by Giuseppe Sucameli
Email : brush dot tyler 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__ = 'Giuseppe Sucameli'
__date__ = 'March 2011'
__copyright__ = '(C) 2011, Giuseppe Sucameli'
# This will get replaced with a git SHA1 when you do a git archive
__revision__ = '$Format:%H$'
from PyQt4.QtCore import *
from PyQt4.QtGui import *
from qgis.core import *
from qgis.gui import *
from ui_widgetDEM import Ui_GdalToolsWidget as Ui_Widget
from widgetPluginBase import GdalToolsBasePluginWidget as BasePluginWidget
import GdalTools_utils as Utils
class GdalToolsDialog(QWidget, Ui_Widget, BasePluginWidget):
def __init__(self, iface):
QWidget.__init__(self)
self.iface = iface
self.modes = ("hillshade", "slope", "aspect", "color-relief", "TRI", "TPI", "roughness")
self.setupUi(self)
BasePluginWidget.__init__(self, self.iface, "gdaldem")
self.outSelector.setType( self.outSelector.FILE )
self.configSelector.setType( self.configSelector.FILE )
# set the default QSpinBoxes and QProgressBar value
self.bandSpin.setValue(1)
self.hillshadeZFactorSpin.setValue(1)
self.hillshadeScaleSpin.setValue(1)
self.hillshadeAltitudeSpin.setValue(45.0)
self.hillshadeAzimuthSpin.setValue(315.0)
self.slopeScaleSpin.setValue(1)
# set the default color configuration file to terrain
import os.path
colorConfigFile = os.path.join(os.path.dirname(__file__), "terrain.txt")
self.configSelector.setFilename(colorConfigFile)
self.outputFormat = Utils.fillRasterOutputFormat()
self.creationOptionsWidget.setFormat(self.outputFormat)
self.setParamsStatus(
[
(self.inSelector, SIGNAL("filenameChanged()")),
(self.outSelector, SIGNAL("filenameChanged()")),
(self.computeEdgesCheck, SIGNAL("stateChanged(int)"), None, 1800),
(self.bandSpin, SIGNAL("valueChanged(int)"), self.bandCheck),
(self.algorithmCheck, SIGNAL("stateChanged(int)"), None, 1800),
(self.creationOptionsWidget, SIGNAL("optionsChanged()")),
(self.creationOptionsGroupBox, SIGNAL("toggled(bool)")),
(self.modeCombo, SIGNAL("currentIndexChanged(int)")),
([self.hillshadeZFactorSpin, self.hillshadeScaleSpin, self.hillshadeAltitudeSpin, self.hillshadeAzimuthSpin], SIGNAL("valueChanged(double)")),
(self.slopeScaleSpin, SIGNAL("valueChanged(double)")),
(self.slopePercentCheck, SIGNAL("stateChanged(int)")),
([self.aspectTrigonometricCheck, self.aspectZeroForFlatCheck], SIGNAL("stateChanged(int)")),
(self.configSelector, SIGNAL("filenameChanged()")),
([self.colorExactRadio, self.colorNearestRadio], SIGNAL("toggled(bool)"), self.colorMatchGroupBox),
(self.colorAlphaCheck, SIGNAL("stateChanged(int)"))
]
)
self.connect(self.inSelector, SIGNAL("selectClicked()"), self.fillInputFileEdit)
self.connect(self.outSelector, SIGNAL("selectClicked()"), self.fillOutputFileEdit)
self.connect(self.configSelector, SIGNAL("selectClicked()"), self.fillColorConfigFileEdit)
self.connect(self.modeCombo, SIGNAL("currentIndexChanged(int)"), self.showModeParams)
def showModeParams(self, index):
self.stackedWidget.setVisible( index < 4 )
self.algorithmCheck.setVisible( index < 3 )
if index >= 3:
self.algorithmCheck.setChecked( False )
def onLayersChanged(self):
self.inSelector.setLayers( Utils.LayerRegistry.instance().getRasterLayers() )
def fillInputFileEdit(self):
lastUsedFilter = Utils.FileFilter.lastUsedRasterFilter()
inputFile = Utils.FileDialog.getOpenFileName(self, self.tr( "Select the file for DEM" ), Utils.FileFilter.allRastersFilter(), lastUsedFilter)
if inputFile.isEmpty():
return
Utils.FileFilter.setLastUsedRasterFilter(lastUsedFilter)
self.inSelector.setFilename(inputFile)
self.getArguments()
def fillOutputFileEdit(self):
lastUsedFilter = Utils.FileFilter.lastUsedRasterFilter()
outputFile = Utils.FileDialog.getSaveFileName(self, self.tr( "Select the raster file to save the results to" ), Utils.FileFilter.allRastersFilter(), lastUsedFilter )
if outputFile.isEmpty():
return
Utils.FileFilter.setLastUsedRasterFilter(lastUsedFilter)
self.outputFormat = Utils.fillRasterOutputFormat( lastUsedFilter, outputFile )
self.outSelector.setFilename(outputFile)
self.creationOptionsWidget.setFormat(self.outputFormat)
def fillColorConfigFileEdit(self):
configFile = Utils.FileDialog.getOpenFileName(self, self.tr( "Select the color configuration file" ))
if configFile.isEmpty():
return
self.configSelector.setFilename(configFile)
def getArguments(self):
mode = self.modes[ self.modeCombo.currentIndex() ]
arguments = QStringList()
arguments << mode
arguments << self.getInputFileName()
if mode == "color-relief":
arguments << self.configSelector.filename()
outputFn = self.getOutputFileName()
arguments << outputFn
if mode == "hillshade":
arguments << "-z" << str(self.hillshadeZFactorSpin.value())
arguments << "-s" << str(self.hillshadeScaleSpin.value())
arguments << "-az" << str(self.hillshadeAzimuthSpin.value())
arguments << "-alt" << str(self.hillshadeAltitudeSpin.value())
elif mode == "slope":
if self.slopePercentCheck.isChecked():
arguments << "-p"
arguments << "-s" << str(self.slopeScaleSpin.value())
elif mode == "aspect":
if self.aspectTrigonometricCheck.isChecked():
arguments << "-trigonometric"
if self.aspectZeroForFlatCheck.isChecked():
arguments << "-zero_for_flat"
elif mode == "color-relief":
if self.colorAlphaCheck.isChecked():
arguments << "-alpha"
if self.colorMatchGroupBox.isChecked():
if self.colorExactRadio.isChecked():
arguments << "-exact_color_entry"
elif self.colorNearestRadio.isChecked():
arguments << "-nearest_color_entry"
if self.algorithmCheck.isChecked():
arguments << "-alg" << "ZevenbergenThorne"
if self.computeEdgesCheck.isChecked():
arguments << "-compute_edges"
if self.bandCheck.isChecked():
arguments << "-b" << str(self.bandSpin.value())
if not outputFn.isEmpty():
arguments << "-of" << self.outputFormat
if self.creationOptionsGroupBox.isChecked():
for opt in self.creationOptionsWidget.options():
arguments << "-co" << opt
# set creation options filename/layer for validation
if self.inSelector.layer():
self.creationOptionsWidget.setRasterLayer(self.inSelector.layer())
else:
self.creationOptionsWidget.setRasterFileName(self.getInputFileName())
return arguments
def getInputFileName(self):
return self.inSelector.filename()
def getOutputFileName(self):
return self.outSelector.filename()
def addLayerIntoCanvas(self, fileInfo):
self.iface.addRasterLayer(fileInfo.filePath())