def doWork(self, tableLayer):
workLayer = self.layerCombo.currentLayer()
cutGeom = QgsGeometry().fromRect(workLayer.extent())
cutLayer = QgsVectorLayer(
"Polygon?crs={}".format(workLayer.crs().authid()), "temp_cut",
"memory")
cut_feature = QgsFeature()
cut_feature.setGeometry(cutGeom)
cutLayer.dataProvider().addFeatures([cut_feature])
restLayers = self.getLayers()
if restLayers:
for layer in restLayers:
cutLayer = processing.run("native:difference", {
'INPUT': cutLayer,
'OVERLAY': layer,
'OUTPUT': 'memory:'
})['OUTPUT']
cutted_raster_path = processing.run("gdal:cliprasterbymasklayer", {
'INPUT': workLayer,
'MASK': cutLayer,
'OUTPUT': 'TEMPORARY_OUTPUT'
})['OUTPUT']
cutted_raster = QgsRasterLayer(cutted_raster_path)
else:
cutted_raster = workLayer
slopeLayer_path = processing.run(
"gdal:slope", {
'INPUT': cutted_raster,
'BAND': 1,
'SCALE': 1,
'AS_PERCENT': False,
'OUTPUT': 'TEMPORARY_OUTPUT'
})['OUTPUT']
slopeLayer = QgsRasterLayer(slopeLayer_path)
classLayer_path = processing.run(
"native:reclassifybylayer", {
'INPUT_RASTER': slopeLayer,
'RASTER_BAND': 1,
'INPUT_TABLE': tableLayer,
'MIN_FIELD': 'Minimo',
'MAX_FIELD': 'Maximo',
'VALUE_FIELD': 'Valor',
'RANGE_BOUNDARIES': 1,
'OUTPUT': 'TEMPORARY_OUTPUT'
})['OUTPUT']
classLayer = QgsRasterLayer(classLayer_path)
classLayer.setName('Mapa de trafegabilidade')
QgsProject.instance().addMapLayer(classLayer)
self.setRasterStyle(classLayer, tableLayer)
return
def multibandRasterLayer(self) -> QgsRasterLayer:
try:
from utilities import unitTestDataPath
path = pathlib.Path(unitTestDataPath()) / 'landsat_4326.tif'
except ModuleNotFoundError:
path = pathlib.Path(__file__).parent / 'landsat_4326.tif'
assert isinstance(path, pathlib.Path) and path.is_file()
lyr = QgsRasterLayer(path.as_posix())
lyr.setName(path.name)
self.assertIsInstance(lyr, QgsRasterLayer)
self.assertTrue(lyr.isValid())
self.assertTrue(lyr.bandCount() > 1)
return lyr
def testWriteSld(self):
"""Test SLD generation for the XMLS fields geneerated at RasterLayer level and not to the deeper renderer level."""
myPath = os.path.join(unitTestDataPath(), 'landsat.tif')
myFileInfo = QFileInfo(myPath)
myBaseName = myFileInfo.baseName()
myRasterLayer = QgsRasterLayer(myPath, myBaseName)
myMessage = 'Raster not loaded: %s' % myPath
assert myRasterLayer.isValid(), myMessage
# do generic export with default layer values
dom, root, errorMessage = self.layerToSld(myRasterLayer)
elements = root.elementsByTagName('sld:LayerFeatureConstraints')
self.assertEqual(len(elements), 1)
element = elements.at(0).toElement()
elements = element.elementsByTagName('sld:FeatureTypeConstraint')
self.assertEqual(len(elements), 1)
element = elements.at(0).toElement()
elements = root.elementsByTagName('sld:UserStyle')
self.assertEqual(len(elements), 1)
element = elements.at(0).toElement()
name = element.firstChildElement('sld:Name')
self.assertFalse(name.isNull())
self.assertEqual(name.text(), 'landsat')
abstract = element.firstChildElement('sld:Abstract')
self.assertTrue(abstract.isNull())
title = element.firstChildElement('sld:Title')
self.assertTrue(title.isNull())
featureTypeStyle = element.firstChildElement('sld:FeatureTypeStyle')
self.assertFalse(featureTypeStyle.isNull())
rule = featureTypeStyle.firstChildElement('sld:Rule')
self.assertFalse(rule.isNull())
temp = rule.firstChildElement('sld:MinScaleDenominator')
self.assertTrue(temp.isNull())
temp = rule.firstChildElement('sld:MaxScaleDenominator')
self.assertTrue(temp.isNull())
rasterSymbolizer = rule.firstChildElement('sld:RasterSymbolizer')
self.assertFalse(rule.isNull())
vendorOptions = rasterSymbolizer.elementsByTagName('sld:VendorOption')
self.assertTrue(vendorOptions.size() == 0)
# set no default values and check exported sld
myRasterLayer.setName('')
myRasterLayer.setAbstract('fake')
myRasterLayer.setTitle('fake')
dom, root, errorMessage = self.layerToSld(myRasterLayer)
elements = root.elementsByTagName('sld:LayerFeatureConstraints')
self.assertEqual(len(elements), 1)
element = elements.at(0).toElement()
elements = element.elementsByTagName('sld:FeatureTypeConstraint')
self.assertEqual(len(elements), 1)
element = elements.at(0).toElement()
elements = root.elementsByTagName('sld:UserStyle')
self.assertEqual(len(elements), 1)
element = elements.at(0).toElement()
# no generated if empty
name = element.firstChildElement('sld:Name')
self.assertTrue(name.isNull())
# generated if not empty
abstract = element.firstChildElement('sld:Abstract')
self.assertFalse(abstract.isNull())
self.assertEqual(abstract.text(), 'fake')
title = element.firstChildElement('sld:Title')
self.assertFalse(title.isNull())
self.assertEqual(title.text(), 'fake')
# if setScaleBasedVisibility is true print scales
myRasterLayer.setScaleBasedVisibility(True)
myRasterLayer.setMaximumScale(0.0001)
myRasterLayer.setMinimumScale(0.01)
dom, root, errorMessage = self.layerToSld(myRasterLayer)
elements = dom.elementsByTagName('sld:Rule')
self.assertEqual(len(elements), 1)
rule = elements.at(0).toElement()
self.assertFalse(rule.isNull())
temp = rule.firstChildElement('sld:MinScaleDenominator')
self.assertFalse(temp.isNull())
self.assertEqual(temp.text(), '0.0001')
temp = rule.firstChildElement('sld:MaxScaleDenominator')
self.assertFalse(temp.isNull())
self.assertEqual(temp.text(), '0.01')
# check non default hueSaturationFilter values
hue = myRasterLayer.hueSaturationFilter()
hue.setGrayscaleMode(QgsHueSaturationFilter.GrayscaleLightness)
dom, root, errorMessage = self.layerToSld(myRasterLayer)
elements = dom.elementsByTagName('sld:RasterSymbolizer')
self.assertEqual(len(elements), 1)
element = elements.at(0).toElement()
self.assertFalse(element.isNull())
self.assertVendorOption(element, 'grayScale', 'lightness')
hue = myRasterLayer.hueSaturationFilter()
hue.setGrayscaleMode(QgsHueSaturationFilter.GrayscaleLuminosity)
dom, root, errorMessage = self.layerToSld(myRasterLayer)
elements = dom.elementsByTagName('sld:RasterSymbolizer')
self.assertEqual(len(elements), 1)
element = elements.at(0).toElement()
self.assertFalse(element.isNull())
self.assertVendorOption(element, 'grayScale', 'luminosity')
hue = myRasterLayer.hueSaturationFilter()
hue.setGrayscaleMode(QgsHueSaturationFilter.GrayscaleAverage)
dom, root, errorMessage = self.layerToSld(myRasterLayer)
elements = dom.elementsByTagName('sld:RasterSymbolizer')
self.assertEqual(len(elements), 1)
element = elements.at(0).toElement()
self.assertFalse(element.isNull())
self.assertVendorOption(element, 'grayScale', 'average')
hue = myRasterLayer.hueSaturationFilter()
hue.setGrayscaleMode(QgsHueSaturationFilter.GrayscaleOff)
dom, root, errorMessage = self.layerToSld(myRasterLayer)
elements = dom.elementsByTagName('sld:RasterSymbolizer')
self.assertEqual(len(elements), 1)
element = elements.at(0).toElement()
self.assertFalse(element.isNull())
self.assertVendorOption(element, 'grayScale', None)
# manage colorize vendorOption tags
hue = myRasterLayer.hueSaturationFilter()
hue.setColorizeOn(True)
hue.setColorizeStrength(50)
dom, root, errorMessage = self.layerToSld(myRasterLayer)
elements = dom.elementsByTagName('sld:RasterSymbolizer')
self.assertEqual(len(elements), 1)
element = elements.at(0).toElement()
self.assertFalse(element.isNull())
self.assertVendorOption(element, 'colorizeOn', '1')
self.assertVendorOption(element, 'colorizeRed', '255')
self.assertVendorOption(element, 'colorizeGreen', '128')
self.assertVendorOption(element, 'colorizeBlue', '128')
self.assertVendorOption(element, 'colorizeStrength', '0.5')
self.assertVendorOption(element, 'saturation', '0.498039')
# other hue non default values, no colorize and saturation = 0
hue = myRasterLayer.hueSaturationFilter()
hue.setColorizeOn(False)
hue.setSaturation(0)
dom, root, errorMessage = self.layerToSld(myRasterLayer)
elements = dom.elementsByTagName('sld:RasterSymbolizer')
self.assertEqual(len(elements), 1)
element = elements.at(0).toElement()
self.assertFalse(element.isNull())
self.assertVendorOption(element, 'colorizeOn', None)
self.assertVendorOption(element, 'colorizeRed', None)
self.assertVendorOption(element, 'colorizeGreen', None)
self.assertVendorOption(element, 'colorizeBlue', None)
self.assertVendorOption(element, 'colorizeStrength', None)
self.assertVendorOption(element, 'saturation', None)
self.assertVendorOption(element, 'brightness', None)
self.assertVendorOption(element, 'contrast', None)
# other hue non default values, no colorize and saturation = 100
hue = myRasterLayer.hueSaturationFilter()
hue.setColorizeOn(False)
hue.setSaturation(100)
dom, root, errorMessage = self.layerToSld(myRasterLayer)
elements = dom.elementsByTagName('sld:RasterSymbolizer')
self.assertEqual(len(elements), 1)
element = elements.at(0).toElement()
self.assertFalse(element.isNull())
self.assertVendorOption(element, 'colorizeOn', None)
self.assertVendorOption(element, 'colorizeRed', None)
self.assertVendorOption(element, 'colorizeGreen', None)
self.assertVendorOption(element, 'colorizeBlue', None)
self.assertVendorOption(element, 'colorizeStrength', None)
self.assertVendorOption(element, 'saturation', '1')
hue.setSaturation(-100)
dom, root, errorMessage = self.layerToSld(myRasterLayer)
self.assertVendorOption(root, 'saturation', '0')
# brightness filter default values
dom, root, errorMessage = self.layerToSld(myRasterLayer)
elements = dom.elementsByTagName('sld:RasterSymbolizer')
self.assertEqual(len(elements), 1)
element = elements.at(0).toElement()
self.assertFalse(element.isNull())
self.assertTrue(myRasterLayer.brightnessFilter().brightness() == 0)
self.assertTrue(myRasterLayer.brightnessFilter().contrast() == 0)
self.assertVendorOption(element, 'brightness', None)
self.assertVendorOption(element, 'contrast', None)
# brightness filter no default values
bf = myRasterLayer.brightnessFilter()
bf.setBrightness(-255)
bf.setContrast(-100)
dom, root, errorMessage = self.layerToSld(myRasterLayer)
elements = dom.elementsByTagName('sld:RasterSymbolizer')
self.assertEqual(len(elements), 1)
element = elements.at(0).toElement()
self.assertFalse(element.isNull())
self.assertVendorOption(element, 'brightness', '0')
self.assertVendorOption(element, 'contrast', '0')
bf.setBrightness(255)
bf.setContrast(100)
dom, root, errorMessage = self.layerToSld(myRasterLayer)
elements = dom.elementsByTagName('sld:RasterSymbolizer')
self.assertEqual(len(elements), 1)
element = elements.at(0).toElement()
self.assertFalse(element.isNull())
self.assertVendorOption(element, 'brightness', '1')
self.assertVendorOption(element, 'contrast', '1')
def testWriteSld(self):
"""Test SLD generation for the XMLS fields geneerated at RasterLayer level and not to the deeper renderer level."""
myPath = os.path.join(unitTestDataPath(), 'landsat.tif')
myFileInfo = QFileInfo(myPath)
myBaseName = myFileInfo.baseName()
myRasterLayer = QgsRasterLayer(myPath, myBaseName)
myMessage = 'Raster not loaded: %s' % myPath
assert myRasterLayer.isValid(), myMessage
# do generic export with default layer values
dom, root, errorMessage = self.layerToSld(myRasterLayer)
elements = root.elementsByTagName('sld:LayerFeatureConstraints')
self.assertEqual(len(elements), 1)
element = elements.at(0).toElement()
elements = element.elementsByTagName('sld:FeatureTypeConstraint')
self.assertEqual(len(elements), 1)
element = elements.at(0).toElement()
elements = root.elementsByTagName('sld:UserStyle')
self.assertEqual(len(elements), 1)
element = elements.at(0).toElement()
name = element.firstChildElement('sld:Name')
self.assertFalse(name.isNull())
self.assertEqual(name.text(), 'landsat')
abstract = element.firstChildElement('sld:Abstract')
self.assertTrue(abstract.isNull())
title = element.firstChildElement('sld:Title')
self.assertTrue(title.isNull())
featureTypeStyle = element.firstChildElement('sld:FeatureTypeStyle')
self.assertFalse(featureTypeStyle.isNull())
rule = featureTypeStyle.firstChildElement('sld:Rule')
self.assertFalse(rule.isNull())
temp = rule.firstChildElement('sld:MinScaleDenominator')
self.assertTrue(temp.isNull())
temp = rule.firstChildElement('sld:MaxScaleDenominator')
self.assertTrue(temp.isNull())
rasterSymbolizer = rule.firstChildElement('sld:RasterSymbolizer')
self.assertFalse(rule.isNull())
vendorOptions = rasterSymbolizer.elementsByTagName('sld:VendorOption')
self.assertTrue(vendorOptions.size() == 0)
# set no default values and check exported sld
myRasterLayer.setName('')
myRasterLayer.setAbstract('fake')
myRasterLayer.setTitle('fake')
dom, root, errorMessage = self.layerToSld(myRasterLayer)
elements = root.elementsByTagName('sld:LayerFeatureConstraints')
self.assertEqual(len(elements), 1)
element = elements.at(0).toElement()
elements = element.elementsByTagName('sld:FeatureTypeConstraint')
self.assertEqual(len(elements), 1)
element = elements.at(0).toElement()
elements = root.elementsByTagName('sld:UserStyle')
self.assertEqual(len(elements), 1)
element = elements.at(0).toElement()
# no generated if empty
name = element.firstChildElement('sld:Name')
self.assertTrue(name.isNull())
# generated if not empty
abstract = element.firstChildElement('sld:Abstract')
self.assertFalse(abstract.isNull())
self.assertEqual(abstract.text(), 'fake')
title = element.firstChildElement('sld:Title')
self.assertFalse(title.isNull())
self.assertEqual(title.text(), 'fake')
# if setScaleBasedVisibility is true print scales
myRasterLayer.setScaleBasedVisibility(True)
myRasterLayer.setMaximumScale(0.0001)
myRasterLayer.setMinimumScale(0.01)
dom, root, errorMessage = self.layerToSld(myRasterLayer)
elements = dom.elementsByTagName('sld:Rule')
self.assertEqual(len(elements), 1)
rule = elements.at(0).toElement()
self.assertFalse(rule.isNull())
temp = rule.firstChildElement('sld:MinScaleDenominator')
self.assertFalse(temp.isNull())
self.assertEqual(temp.text(), '0.0001')
temp = rule.firstChildElement('sld:MaxScaleDenominator')
self.assertFalse(temp.isNull())
self.assertEqual(temp.text(), '0.01')
# check non default hueSaturationFilter values
hue = myRasterLayer.hueSaturationFilter()
hue.setGrayscaleMode(QgsHueSaturationFilter.GrayscaleLightness)
dom, root, errorMessage = self.layerToSld(myRasterLayer)
elements = dom.elementsByTagName('sld:RasterSymbolizer')
self.assertEqual(len(elements), 1)
element = elements.at(0).toElement()
self.assertFalse(element.isNull())
self.assertVendorOption(element, 'grayScale', 'lightness')
hue = myRasterLayer.hueSaturationFilter()
hue.setGrayscaleMode(QgsHueSaturationFilter.GrayscaleLuminosity)
dom, root, errorMessage = self.layerToSld(myRasterLayer)
elements = dom.elementsByTagName('sld:RasterSymbolizer')
self.assertEqual(len(elements), 1)
element = elements.at(0).toElement()
self.assertFalse(element.isNull())
self.assertVendorOption(element, 'grayScale', 'luminosity')
hue = myRasterLayer.hueSaturationFilter()
hue.setGrayscaleMode(QgsHueSaturationFilter.GrayscaleAverage)
dom, root, errorMessage = self.layerToSld(myRasterLayer)
elements = dom.elementsByTagName('sld:RasterSymbolizer')
self.assertEqual(len(elements), 1)
element = elements.at(0).toElement()
self.assertFalse(element.isNull())
self.assertVendorOption(element, 'grayScale', 'average')
hue = myRasterLayer.hueSaturationFilter()
hue.setGrayscaleMode(QgsHueSaturationFilter.GrayscaleOff)
dom, root, errorMessage = self.layerToSld(myRasterLayer)
elements = dom.elementsByTagName('sld:RasterSymbolizer')
self.assertEqual(len(elements), 1)
element = elements.at(0).toElement()
self.assertFalse(element.isNull())
self.assertVendorOption(element, 'grayScale', None)
# manage colorize vendorOption tags
hue = myRasterLayer.hueSaturationFilter()
hue.setColorizeOn(True)
hue.setColorizeStrength(50)
dom, root, errorMessage = self.layerToSld(myRasterLayer)
elements = dom.elementsByTagName('sld:RasterSymbolizer')
self.assertEqual(len(elements), 1)
element = elements.at(0).toElement()
self.assertFalse(element.isNull())
self.assertVendorOption(element, 'colorizeOn', '1')
self.assertVendorOption(element, 'colorizeRed', '255')
self.assertVendorOption(element, 'colorizeGreen', '128')
self.assertVendorOption(element, 'colorizeBlue', '128')
self.assertVendorOption(element, 'colorizeStrength', '0.5')
self.assertVendorOption(element, 'saturation', '0.498039')
# other hue non default values, no colorize and saturation = 0
hue = myRasterLayer.hueSaturationFilter()
hue.setColorizeOn(False)
hue.setSaturation(0)
dom, root, errorMessage = self.layerToSld(myRasterLayer)
elements = dom.elementsByTagName('sld:RasterSymbolizer')
self.assertEqual(len(elements), 1)
element = elements.at(0).toElement()
self.assertFalse(element.isNull())
self.assertVendorOption(element, 'colorizeOn', None)
self.assertVendorOption(element, 'colorizeRed', None)
self.assertVendorOption(element, 'colorizeGreen', None)
self.assertVendorOption(element, 'colorizeBlue', None)
self.assertVendorOption(element, 'colorizeStrength', None)
self.assertVendorOption(element, 'saturation', None)
self.assertVendorOption(element, 'brightness', None)
self.assertVendorOption(element, 'contrast', None)
# other hue non default values, no colorize and saturation = 100
hue = myRasterLayer.hueSaturationFilter()
hue.setColorizeOn(False)
hue.setSaturation(100)
dom, root, errorMessage = self.layerToSld(myRasterLayer)
elements = dom.elementsByTagName('sld:RasterSymbolizer')
self.assertEqual(len(elements), 1)
element = elements.at(0).toElement()
self.assertFalse(element.isNull())
self.assertVendorOption(element, 'colorizeOn', None)
self.assertVendorOption(element, 'colorizeRed', None)
self.assertVendorOption(element, 'colorizeGreen', None)
self.assertVendorOption(element, 'colorizeBlue', None)
self.assertVendorOption(element, 'colorizeStrength', None)
self.assertVendorOption(element, 'saturation', '1')
hue.setSaturation(-100)
dom, root, errorMessage = self.layerToSld(myRasterLayer)
self.assertVendorOption(root, 'saturation', '0')
# brightness filter default values
dom, root, errorMessage = self.layerToSld(myRasterLayer)
elements = dom.elementsByTagName('sld:RasterSymbolizer')
self.assertEqual(len(elements), 1)
element = elements.at(0).toElement()
self.assertFalse(element.isNull())
self.assertTrue(myRasterLayer.brightnessFilter().brightness() == 0)
self.assertTrue(myRasterLayer.brightnessFilter().contrast() == 0)
self.assertVendorOption(element, 'brightness', None)
self.assertVendorOption(element, 'contrast', None)
# brightness filter no default values
bf = myRasterLayer.brightnessFilter()
bf.setBrightness(-255)
bf.setContrast(-100)
dom, root, errorMessage = self.layerToSld(myRasterLayer)
elements = dom.elementsByTagName('sld:RasterSymbolizer')
self.assertEqual(len(elements), 1)
element = elements.at(0).toElement()
self.assertFalse(element.isNull())
self.assertVendorOption(element, 'brightness', '0')
self.assertVendorOption(element, 'contrast', '0')
bf.setBrightness(255)
bf.setContrast(100)
dom, root, errorMessage = self.layerToSld(myRasterLayer)
elements = dom.elementsByTagName('sld:RasterSymbolizer')
self.assertEqual(len(elements), 1)
element = elements.at(0).toElement()
self.assertFalse(element.isNull())
self.assertVendorOption(element, 'brightness', '1')
self.assertVendorOption(element, 'contrast', '1')
class ArchiwalnaOrtofotomapa:
"""QGIS Plugin Implementation."""
def __init__(self, iface):
"""Constructor.
:param iface: An interface instance that will be passed to this class
which provides the hook by which you can manipulate the QGIS
application at run time.
:type iface: QgsInterface
"""
if Qgis.QGIS_VERSION_INT >= 31000:
from .qgis_feed import QgisFeed
self.feed = QgisFeed()
self.feed.initFeed()
# Save reference to the QGIS interface
self.iface = iface
# initialize plugin directory
self.plugin_dir = os.path.dirname(__file__)
# initialize locale
locale = QSettings().value('locale/userLocale')[0:2]
locale_path = os.path.join(
self.plugin_dir, 'i18n',
'ArchiwalnaOrtofotomapa_{}.qm'.format(locale))
if os.path.exists(locale_path):
self.translator = QTranslator()
self.translator.load(locale_path)
QCoreApplication.installTranslator(self.translator)
# Declare instance attributes
self.actions = []
self.menu = self.tr(u'&EnviroSolutions')
# TODO: We are going to let the user set this up in a future iteration
self.toolbar = self.iface.mainWindow().findChild(
QToolBar, 'EnviroSolutions')
if not self.toolbar:
self.toolbar = self.iface.addToolBar(u'EnviroSolutions')
self.toolbar.setObjectName(u'EnviroSolutions')
#print "** INITIALIZING ArchiwalnaOrtofotomapa"
self.pluginIsActive = False
self.dockwidget = None
self.canvas = self.iface.mapCanvas()
self.orto = None
# --------------------------------------------------------------------------
# noinspection PyMethodMayBeStatic
def tr(self, message):
"""Get the translation for a string using Qt translation API.
We implement this ourselves since we do not inherit QObject.
:param message: String for translation.
:type message: str, QString
:returns: Translated version of message.
:rtype: QString
"""
# noinspection PyTypeChecker,PyArgumentList,PyCallByClass
return QCoreApplication.translate('ArchiwalnaOrtofotomapa', message)
def add_action(self,
icon_path,
text,
callback,
enabled_flag=True,
add_to_menu=True,
add_to_toolbar=True,
status_tip=None,
whats_this=None,
parent=None):
"""Add a toolbar icon to the toolbar.
:param icon_path: Path to the icon for this action. Can be a resource
path (e.g. ':/plugins/foo/bar.png') or a normal file system path.
:type icon_path: str
:param text: Text that should be shown in menu items for this action.
:type text: str
:param callback: Function to be called when the action is triggered.
:type callback: function
:param enabled_flag: A flag indicating if the action should be enabled
by default. Defaults to True.
:type enabled_flag: bool
:param add_to_menu: Flag indicating whether the action should also
be added to the menu. Defaults to True.
:type add_to_menu: bool
:param add_to_toolbar: Flag indicating whether the action should also
be added to the toolbar. Defaults to True.
:type add_to_toolbar: bool
:param status_tip: Optional text to show in a popup when mouse pointer
hovers over the action.
:type status_tip: str
:param parent: Parent widget for the new action. Defaults None.
:type parent: QWidget
:param whats_this: Optional text to show in the status bar when the
mouse pointer hovers over the action.
:returns: The action that was created. Note that the action is also
added to self.actions list.
:rtype: QAction
"""
icon = QIcon(icon_path)
action = QAction(icon, text, parent)
action.triggered.connect(callback)
action.setEnabled(enabled_flag)
if status_tip is not None:
action.setStatusTip(status_tip)
if whats_this is not None:
action.setWhatsThis(whats_this)
if add_to_toolbar:
self.toolbar.addAction(action)
if add_to_menu:
self.iface.addPluginToMenu(self.menu, action)
self.actions.append(action)
return action
def initGui(self):
"""Create the menu entries and toolbar icons inside the QGIS GUI."""
icon_path = ':/plugins/archiwalna_ortofotomapa/icon_pw2.png'
self.add_action(icon_path,
text=self.tr(u'Archiwalna Ortofotomapa'),
callback=self.run,
parent=self.iface.mainWindow())
def onClosePlugin(self):
"""Cleanup necessary items here when plugin dockwidget is closed"""
#print "** CLOSING ArchiwalnaOrtofotomapa"
# disconnects
self.dockwidget.closingPlugin.disconnect(self.onClosePlugin)
# remove this statement if dockwidget is to remain
# for reuse if plugin is reopened
# Commented next statement since it causes QGIS crashe
# when closing the docked window:
# self.dockwidget = None
self.pluginIsActive = False
def unload(self):
"""Removes the plugin menu item and icon from QGIS GUI."""
#print "** UNLOAD ArchiwalnaOrtofotomapa"
for action in self.actions:
self.iface.removePluginMenu(self.tr(u'&EnviroSolutions'), action)
#self.iface.removeToolBarIcon(action)
self.toolbar.removeAction(action)
# remove the toolbar
del self.toolbar
#--------------------------------------------------------------------------
def run(self):
"""Run method that loads and starts the plugin"""
if not self.pluginIsActive:
self.pluginIsActive = True
#print "** STARTING ArchiwalnaOrtofotomapa"
if self.orto:
self.orto.willBeDeleted.disconnect()
# dockwidget may not exist if:
# first run of plugin
# removed on close (see self.onClosePlugin method)
if self.dockwidget == None:
# Create the dockwidget (after translation) and keep reference
self.dockwidget = ArchiwalnaOrtofotomapaDockWidget()
# Eventy
slider = self.dockwidget.timeSlider
slider.setMinimum(1997)
currentYear = datetime.now().year
slider.setMaximum(currentYear)
self.isSliderPressed = False
slider.valueChanged.connect(self.slider_changed)
slider.sliderReleased.connect(self.slider_released)
slider.sliderPressed.connect(self.slider_pressed)
slider.sliderMoved.connect(self.slider_moved)
# connect to provide cleanup on closing of dockwidget
self.dockwidget.closingPlugin.connect(self.onClosePlugin)
# informacje o wersji
self.dockwidget.lbl_pluginVersion.setText(
'%s %s' % (plugin_name, plugin_version))
# show the dockwidget
# TODO: fix to allow choice of dock location
self.iface.addDockWidget(Qt.LeftDockWidgetArea, self.dockwidget)
self.dockwidget.show()
self.orto = QgsRasterLayer(
self.makeDataSourceUri(slider.value()),
"Ortofotomapa Archiwalna %d" % slider.value(), 'wms')
self.orto.willBeDeleted.connect(self.orto_removal)
QgsProject.instance().addMapLayer(self.orto)
else:
#reopened
pass
def orto_removal(self):
self.dockwidget.close()
self.orto = None
def slider_changed(self):
slider = self.dockwidget.sender()
self.dockwidget.timeLabel.setText(str(slider.value()))
if not self.isSliderPressed:
self.changeOrtoLayer(slider)
def slider_moved(self):
pass
def slider_pressed(self):
slider = self.dockwidget.sender()
self.isSliderPressed = True
def slider_released(self):
slider = self.dockwidget.sender()
self.isSliderPressed = False
self.changeOrtoLayer(slider)
def changeOrtoLayer(self, slider):
# SET DATASOURCE AND RELOAD DATA
uri = self.makeDataSourceUri(slider.value())
self.orto.dataProvider().setDataSourceUri(uri)
self.orto.triggerRepaint()
# self.orto.dataProvider().reloadData() #QGIS 3.12 and above
self.orto.setName("Ortofotomapa Archiwalna %d" % slider.value())
def makeDataSourceUri(self, year):
serviceUrl = "http://mapy.geoportal.gov.pl/wss/service/img/guest/ORTO_TIME/MapServer/WMSServer"
return "IgnoreGetFeatureInfoUrl=1&IgnoreGetMapUrl=1&contextualWMSLegend=0&crs=EPSG:2180&format=image/jpeg&layers=Raster&styles=&url=" \
+ serviceUrl + \
"?TIME=" + \
str(year) + \
"-01-01T00%3A00%3A00.000%2B01%3A00"
def load_raster(self, tif_file, qml_file=None, temporal=False):
self.temporal = temporal
bn = Path(tif_file).name
raster_layer = QgsRasterLayer(str(tif_file), bn)
# this too? Lead to layer loaded twice.
# QgsMapLayerRegistry.instance().addMapLayer(raster_layer)
if not raster_layer.isValid():
self._show_message(Qgis.Critical, bn)
return
"""
The new raster layer is ok and we will continue to work with it in the following
"""
"""
--- Clean: If necessary remove existing layer ---
If a raster layer with the above name already exists, it will be removed beforehand.
The "legend" apparently has nothing to do with the composer legend!
"""
# for layer in self._iface.legendInterface().layers(): # QGIS 2
# for layer in self._iface.layerTreeView().selectedLayers():
""" the complicated way:
project = QgsProject.instance()
raster_layers = [rl for rl in project.mapLayers().values() if rl.type() == 1]
self.out("current project: {} raster layers found.".format(len(raster_layers)))
for layer in raster_layers:
#if layer.type() == QgsMapLayer.RasterLayer and layer.name() == radolan_layer_name:
if layer.name() == layer_name:
self.out('RasterLayer with existing name "{}" found.'.format(layer.name()))
''' Ausgabe
1 Raster
0 DEU_adm0
'''
# print(layerType, layer.name())
print(" removing layer \"{}\"".format(layer.name()))
project.removeMapLayer( layer.id() )
"""
layer_name = Path(tif_file).stem
self._layer_name = layer_name
raster_layer.setName(layer_name)
self._remove_layer_with_same_name(layer_name)
#
# Load result raster
#
# previous version without insert at specific position (was also ok):
# self._iface.addRasterLayer(raster_to_load, path.basename(raster_to_load) )
# Einfaches result_layer.setLayerName('Raster') bringt leider nichts.
# Unser Rasterlayer kann zuverlässig so bestimmt werden (kann gleich noch einmal gebraucht werden):
# raster_layer = self._iface.activeLayer()
self._insert_layer(raster_layer, qml_file, 3)