def batchFinished(self):
self.base.stop()
if len(self.errors) > 0:
msg = u"Processing of the following files ended with error: <br><br>" + "<br><br>".join(self.errors)
QErrorMessage(self).showMessage(msg)
inDir = self.getInputFileName()
outDir = self.getOutputFileName()
if outDir is None or inDir == outDir:
self.outFiles = self.inFiles
# load layers managing the render flag to avoid waste of time
canvas = self.iface.mapCanvas()
previousRenderFlag = canvas.renderFlag()
canvas.setRenderFlag(False)
notCreatedList = []
for item in self.outFiles:
fileInfo = QFileInfo(item)
if fileInfo.exists():
if self.base.loadCheckBox.isChecked():
self.addLayerIntoCanvas(fileInfo)
else:
notCreatedList.append(item)
canvas.setRenderFlag(previousRenderFlag)
if len(notCreatedList) == 0:
QMessageBox.information(self, self.tr("Finished"), self.tr("Operation completed."))
else:
QMessageBox.warning(self, self.tr("Warning"), self.tr("The following files were not created: \n{0}").format(', '.join(notCreatedList)))
def process(self):
search_name = self.searchName.text()
layer = self.layerCombo.currentLayer()
expression = self.fieldExpressionWidget.currentField()[0]
geometryStorage = self.geometryStorageCombo.currentText()
priority = self.priorityBox.value()
srid = layer.crs().authid()
evaluate_directly = self.evaluateCheckBox.isChecked()
if self.projectSearch is None:
self.projectSearch = self.project_search_model.addSearch(
search_name, layer, expression, geometryStorage, priority)
else:
self.projectSearch.edit(search_name, layer.id(), layer.name(),
expression, geometryStorage, priority,
srid)
if evaluate_directly:
self.progressBar.setMinimum(0)
self.progressBar.setMaximum(layer.featureCount())
self.progressBar.show()
self.cancelButton.show()
ok, message = self.project_finder.recordSearch(self.projectSearch)
self.progressBar.hide()
self.cancelButton.hide()
self.okButton.show()
if not ok:
QErrorMessage().showMessage(message)
return
self.close()
def onError(self, error):
if error == QProcess.FailedToStart:
msg = QCoreApplication.translate("GdalTools", "The process failed to start. Either the invoked program is missing, or you may have insufficient permissions to invoke the program.")
elif error == QProcess.Crashed:
msg = QCoreApplication.translate("GdalTools", "The process crashed some time after starting successfully.")
else:
msg = QCoreApplication.translate("GdalTools", "An unknown error occurred.")
QErrorMessage(self).showMessage(msg)
QApplication.processEvents() # give the user chance to see the message
self.stop()
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))
def loadFields(self, vectorFile):
self.attributeComboBox.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
# GDAL Python3 bindings return fields as str and not bytes
# so no recoding is needed. But this assumes that the underlying
# OGR driver always return a Unicode string. hum...
#ncodec = QTextCodec.codecForName(self.lastEncoding)
for name in names:
self.attributeComboBox.addItem(name)
def onFinished(self, exitCode, status):
if status == QProcess.CrashExit:
self.stop()
return
if self.command.find("gdalinfo") != -1 and exitCode == 0:
self.finished.emit(self.loadCheckBox.isChecked())
self.stop()
return
# show the error message if there's one, otherwise show the process output message
msg = unicode(self.process.readAllStandardError())
if msg == '':
outMessages = unicode(
self.process.readAllStandardOutput()).splitlines()
# make sure to not show the help
for m in outMessages:
m = string.strip(m)
if m == '':
continue
# TODO fix this
#if m.contains( QRegExp( "^(?:[Uu]sage:\\s)?" + QRegExp.escape(self.command) + "\\s" ) ):
# if msg.isEmpty():
# msg = self.tr ( "Invalid parameters." )
# break
#if m.contains( QRegExp( "0(?:\\.+[1-9]0{1,2})+" ) ):
# continue
if msg:
msg += "\n"
msg += m
QErrorMessage(self).showMessage(msg.replace("\n", "<br>"))
if exitCode == 0:
self.finished.emit(self.loadCheckBox.isChecked())
self.stop()
def run(self):
"""Run method that performs all the real work"""
# Create the dialog with elements (after translation) and keep reference
# Only create GUI ONCE in callback, so that it will only load when the plugin is started
if self.first_start == True:
self.first_start = False
self.dlg = ReanalysisVisualizationDialog()
project = QgsProject.instance()
if not project.mapLayersByName('back'):
layer = QgsVectorLayer(
'./background/ne_110m_admin_0_countries.shp', "back", "ogr")
project.addMapLayer(layer)
# show the dialog
self.dlg.show()
# Run the dialog event loop
result = self.dlg.exec_()
# See if OK was pressed
if result:
params, variables, drawStyle, need_slideshow = self.dlg.prepare_form_data()
try:
root = QgsProject.instance().layerTreeRoot()
group = root.findGroup('contours')
if group:
group.removeAllChildren()
else:
group = root.addGroup("contours")
root.insertChildNode(-1,
QgsLayerTreeLayer(project.mapLayersByName('back')[0]))
root.removeLayer(project.mapLayersByName('back')[0])
data_grid = DataGrid(params, variables)
geojsons = Isolines(data_grid, drawStyle).get_geojsons()
for geojson in geojsons:
layer = QgsVectorLayer(
geojson['geojson'], "leadTime = " + str(geojson['leadTime']), "ogr")
layer.setOpacity(0.87)
# apply contour style properties
symbol_layer = layer.renderer().symbol().symbolLayers()[0]
symbol_layer.setDataDefinedProperty(
QgsSymbolLayer.PropertyStrokeColor, QgsProperty.fromField("stroke"))
symbol_layer.setDataDefinedProperty(
QgsSymbolLayer.PropertyFillColor, QgsProperty.fromField("fill"))
symbol_layer.setDataDefinedProperty(
QgsSymbolLayer.PropertyStrokeWidth, QgsProperty.fromField("stroke-width"))
# add labels
pal_layer = QgsPalLayerSettings()
pal_layer.fieldName = 'title'
pal_layer.enabled = True
pal_layer.placement = QgsPalLayerSettings.PerimeterCurved
pal_layer.placementFlags = QgsPalLayerSettings.OnLine
labeler = QgsVectorLayerSimpleLabeling(pal_layer)
layer.setLabeling(labeler)
layer.setLabelsEnabled(True)
# add vector layer with isolines
QgsProject.instance().addMapLayer(layer, False)
group.insertChildNode(-1, QgsLayerTreeLayer(layer))
group.setIsMutuallyExclusive(True, 0)
if need_slideshow:
slideshow = threading.Thread(
target=self.__change_active_layer, args=(group,))
slideshow.start()
except Exception as e:
error_text = ''
if (params['east'] > 180 or params['east'] < -180 or params['west'] > 180 or params['west'] < -180 or params['south'] > 90 or params['south'] < -90 or params['north'] > 90 or params['north'] < -90):
error_text += "Ошибка: Некорректно заданы координаты области"
else:
error_text += "Ошибка: \n" + str(e)
error_dialog = QErrorMessage()
error_dialog.showMessage(error_text)
error_dialog.exec_()