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# -*- coding: utf-8 -*-
"""
***************************************************************************
doGrid.py
---------------------
Date : June 2010
Copyright : (C) 2010 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__ = 'June 2010'
__copyright__ = '(C) 2010, Giuseppe Sucameli'
# This will get replaced with a git SHA1 when you do a git archive
__revision__ = '$Format:%H$'
from qgis.PyQt.QtCore import QFileInfo, QTextCodec
from qgis.PyQt.QtWidgets import QWidget, QErrorMessage
from .ui_widgetGrid import Ui_GdalToolsWidget as Ui_Widget
from .widgetPluginBase import GdalToolsBasePluginWidget as BasePluginWidget
from . import GdalTools_utils as Utils
class GdalToolsDialog(QWidget, Ui_Widget, BasePluginWidget):
def __init__(self, iface):
QWidget.__init__(self)
self.iface = iface
self.canvas = self.iface.mapCanvas()
self.algorithm = ('invdist', 'average', 'nearest', 'datametrics')
self.datametrics = ('minimum', 'maximum', 'range')
self.setupUi(self)
BasePluginWidget.__init__(self, self.iface, "gdal_grid")
self.outSelector.setType(self.outSelector.FILE)
self.extentSelector.setCanvas(self.canvas)
#self.extentSelector.stop()
# set the default QSpinBoxes and QProgressBar value
self.widthSpin.setValue(3000)
self.heightSpin.setValue(3000)
self.invdistPowerSpin.setValue(2.0)
self.outputFormat = Utils.fillRasterOutputFormat()
self.lastEncoding = Utils.getLastUsedEncoding()
self.setParamsStatus([
(self.inSelector, "filenameChanged"),
(self.outSelector, "filenameChanged"),
(self.zfieldCombo, "currentIndexChanged", self.zfieldCheck),
(self.algorithmCombo, "currentIndexChanged", self.algorithmCheck),
(self.stackedWidget, None, self.algorithmCheck),
([self.invdistPowerSpin, self.invdistSmothingSpin, self.invdistRadius1Spin, self.invdistRadius2Spin, self.invdistAngleSpin, self.invdistNoDataSpin], "valueChanged"),
([self.invdistMaxPointsSpin, self.invdistMinPointsSpin], "valueChanged"),
([self.averageRadius1Spin, self.averageRadius2Spin, self.averageAngleSpin, self.averageNoDataSpin], "valueChanged"),
(self.averageMinPointsSpin, "valueChanged"),
([self.nearestRadius1Spin, self.nearestRadius2Spin, self.nearestAngleSpin, self.nearestNoDataSpin], "valueChanged"),
(self.datametricsCombo, "currentIndexChanged"),
([self.datametricsRadius1Spin, self.datametricsRadius2Spin, self.datametricsAngleSpin, self.datametricsNoDataSpin], "valueChanged"),
(self.datametricsMinPointsSpin, "valueChanged"),
(self.extentSelector, ["selectionStarted", "newExtentDefined"], self.extentGroup),
([self.widthSpin, self.heightSpin], "valueChanged", self.resizeGroupBox)
])
self.inSelector.selectClicked.connect(self.fillInputFileEdit)
self.outSelector.selectClicked.connect(self.fillOutputFileEdit)
self.inSelector.layerChanged.connect(self.fillFieldsCombo)
self.extentGroup.toggled.connect(self.onExtentCheckedChanged)
def onClosing(self):
self.extentSelector.stop()
BasePluginWidget.onClosing(self)
def onExtentCheckedChanged(self, enabled):
self.extentSelector.start() if enabled else self.extentSelector.stop()
def onLayersChanged(self):
self.inSelector.setLayers(Utils.LayerRegistry.instance().getVectorLayers())
def fillFieldsCombo(self):
if self.inSelector.layer() is None:
return
self.lastEncoding = self.inSelector.layer().dataProvider().encoding()
self.loadFields(self.getInputFileName())
def fillInputFileEdit(self):
lastUsedFilter = Utils.FileFilter.lastUsedVectorFilter()
inputFile, encoding = Utils.FileDialog.getOpenFileName(self, self.tr("Select the input file for Grid"), Utils.FileFilter.allVectorsFilter(), lastUsedFilter, True)
if not inputFile:
return
Utils.FileFilter.setLastUsedVectorFilter(lastUsedFilter)
self.inSelector.setFilename(inputFile)
self.lastEncoding = encoding
self.loadFields(inputFile)
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.saveRastersFilter(), lastUsedFilter)
if not outputFile:
return
Utils.FileFilter.setLastUsedRasterFilter(lastUsedFilter)
self.outputFormat = Utils.fillRasterOutputFormat(lastUsedFilter, outputFile)
self.outSelector.setFilename(outputFile)
def getArguments(self):
arguments = []
if self.zfieldCheck.isChecked() and self.zfieldCombo.currentIndex() >= 0:
arguments.append("-zfield")
arguments.append(self.zfieldCombo.currentText())
inputFn = self.getInputFileName()
if inputFn:
arguments.append("-l")
arguments.append(QFileInfo(inputFn).baseName())
if self.extentGroup.isChecked():
rect = self.extentSelector.getExtent()
if rect is not None:
arguments.append("-txe")
arguments.append(unicode(rect.xMinimum()))
arguments.append(unicode(rect.xMaximum()))
arguments.append("-tye")
arguments.append(unicode(rect.yMaximum()))
arguments.append(unicode(rect.yMinimum()))
if self.algorithmCheck.isChecked() and self.algorithmCombo.currentIndex() >= 0:
arguments.append("-a")
arguments.append(self.algorithmArguments(self.algorithmCombo.currentIndex()))
if self.resizeGroupBox.isChecked():
arguments.append("-outsize")
arguments.append(unicode(self.widthSpin.value()))
arguments.append(unicode(self.heightSpin.value()))
outputFn = self.getOutputFileName()
if outputFn:
arguments.append("-of")
arguments.append(self.outputFormat)
arguments.append(inputFn)
arguments.append(outputFn)
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())
def algorithmArguments(self, index):
algorithm = self.algorithm[index]
arguments = []
if algorithm == "invdist":
arguments.append(algorithm)
arguments.append("power=" + unicode(self.invdistPowerSpin.value()))
arguments.append("smothing=" + unicode(self.invdistSmothingSpin.value()))
arguments.append("radius1=" + unicode(self.invdistRadius1Spin.value()))
arguments.append("radius2=" + unicode(self.invdistRadius2Spin.value()))
arguments.append("angle=" + unicode(self.invdistAngleSpin.value()))
arguments.append("max_points=" + unicode(self.invdistMaxPointsSpin.value()))
arguments.append("min_points=" + unicode(self.invdistMinPointsSpin.value()))
arguments.append("nodata=" + unicode(self.invdistNoDataSpin.value()))
elif algorithm == "average":
arguments.append(algorithm)
arguments.append("radius1=" + unicode(self.averageRadius1Spin.value()))
arguments.append("radius2=" + unicode(self.averageRadius2Spin.value()))
arguments.append("angle=" + unicode(self.averageAngleSpin.value()))
arguments.append("min_points=" + unicode(self.averageMinPointsSpin.value()))
arguments.append("nodata=" + unicode(self.averageNoDataSpin.value()))
elif algorithm == "nearest":
arguments.append(algorithm)
arguments.append("radius1=" + unicode(self.nearestRadius1Spin.value()))
arguments.append("radius2=" + unicode(self.nearestRadius2Spin.value()))
arguments.append("angle=" + unicode(self.nearestAngleSpin.value()))
arguments.append("nodata=" + unicode(self.nearestNoDataSpin.value()))
else:
arguments.append(self.datametrics[self.datametricsCombo.currentIndex()])
arguments.append("radius1=" + unicode(self.datametricsRadius1Spin.value()))
arguments.append("radius2=" + unicode(self.datametricsRadius2Spin.value()))
arguments.append("angle=" + unicode(self.datametricsAngleSpin.value()))
arguments.append("min_points=" + unicode(self.datametricsMinPointsSpin.value()))
arguments.append("nodata=" + unicode(self.datametricsNoDataSpin.value()))
return ':'.join(arguments)
def loadFields(self, vectorFile=''):
self.zfieldCombo.clear()
if not vectorFile:
return
try:
(fields, names) = Utils.getVectorFields(vectorFile)
except Utils.UnsupportedOGRFormat as e:
QErrorMessage(self).showMessage(e.args[0])
self.inSelector.setLayer(None)
return
ncodec = QTextCodec.codecForName(self.lastEncoding)
for name in names:
self.zfieldCombo.addItem(ncodec.toUnicode(name))
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