def createVrt(inventario, vrt):
#Camada de inventario
layer = processing.getObject(Inventario)
count = 0
size = layer.featureCount()
p = 0
progress.setPercentage(p)
rasterList = []
for feature in layer.getFeatures():
filename = feature['fileName']
raster = QgsRasterLayer(filename, filename)
if Override_CRS:
raster.setCrs( QgsCoordinateReferenceSystem(int(CRS.split(':')[-1]), QgsCoordinateReferenceSystem.EpsgCrsId) )
rasterList.append(raster)
ovr = filename+'.ovr'
if not os.path.isfile(ovr):
progress.setText('Fazendo Pirâmides...')
#('gdalogr:overviews', input, levels=8, clean=False, resampling_method=0(nearest), format=1(Gtiff .ovr))
processing.runalg('gdalogr:overviews', raster, '4 8 32 128', True, 0, 1)
if int(float(count)/size*100) != p:
p = int(float(count)/size*100)
progress.setPercentage(p)
count += 1
progress.setText('Fazendo raster virtual...')
processing.runalg('gdalogr:buildvirtualraster', rasterList, 0, False, False, VRT)
def load(fileName, name=None, crs=None, style=None, isRaster=False):
"""
Loads a layer/table into the current project, given its file.
.. deprecated:: 3.0
Do not use, will be removed in QGIS 4.0
"""
from warnings import warn
warn("processing.load is deprecated and will be removed in QGIS 4.0", DeprecationWarning)
if fileName is None:
return
prjSetting = None
settings = QgsSettings()
if crs is not None:
prjSetting = settings.value('/Projections/defaultBehavior')
settings.setValue('/Projections/defaultBehavior', '')
if name is None:
name = os.path.split(fileName)[1]
if isRaster:
qgslayer = QgsRasterLayer(fileName, name)
if qgslayer.isValid():
if crs is not None and qgslayer.crs() is None:
qgslayer.setCrs(crs, False)
if style is None:
style = ProcessingConfig.getSetting(ProcessingConfig.RASTER_STYLE)
qgslayer.loadNamedStyle(style)
QgsProject.instance().addMapLayers([qgslayer])
else:
if prjSetting:
settings.setValue('/Projections/defaultBehavior', prjSetting)
raise RuntimeError(QCoreApplication.translate('dataobject',
'Could not load layer: {0}\nCheck the processing framework log to look for errors.').format(
fileName))
else:
qgslayer = QgsVectorLayer(fileName, name, 'ogr')
if qgslayer.isValid():
if crs is not None and qgslayer.crs() is None:
qgslayer.setCrs(crs, False)
if style is None:
if qgslayer.geometryType() == QgsWkbTypes.PointGeometry:
style = ProcessingConfig.getSetting(ProcessingConfig.VECTOR_POINT_STYLE)
elif qgslayer.geometryType() == QgsWkbTypes.LineGeometry:
style = ProcessingConfig.getSetting(ProcessingConfig.VECTOR_LINE_STYLE)
else:
style = ProcessingConfig.getSetting(ProcessingConfig.VECTOR_POLYGON_STYLE)
qgslayer.loadNamedStyle(style)
QgsProject.instance().addMapLayers([qgslayer])
if prjSetting:
settings.setValue('/Projections/defaultBehavior', prjSetting)
return qgslayer
def load(fileName, name=None, crs=None, style=None, isRaster=False):
"""Loads a layer/table into the current project, given its file.
"""
if fileName is None:
return
prjSetting = None
settings = QSettings()
if crs is not None:
prjSetting = settings.value('/Projections/defaultBehaviour')
settings.setValue('/Projections/defaultBehaviour', '')
if name is None:
name = os.path.split(fileName)[1]
if isRaster:
qgslayer = QgsRasterLayer(fileName, name)
if qgslayer.isValid():
if crs is not None and qgslayer.crs() is None:
qgslayer.setCrs(crs, False)
if style is None:
style = ProcessingConfig.getSetting(ProcessingConfig.RASTER_STYLE)
qgslayer.loadNamedStyle(style)
QgsMapLayerRegistry.instance().addMapLayers([qgslayer])
iface.legendInterface().refreshLayerSymbology(qgslayer)
else:
if prjSetting:
settings.setValue('/Projections/defaultBehaviour', prjSetting)
raise RuntimeError('Could not load layer: ' + unicode(fileName)
+ '\nCheck the processing framework log to look for errors')
else:
qgslayer = QgsVectorLayer(fileName, name, 'ogr')
if qgslayer.isValid():
if crs is not None and qgslayer.crs() is None:
qgslayer.setCrs(crs, False)
if style is None:
if qgslayer.geometryType() == QGis.Point:
style = ProcessingConfig.getSetting(ProcessingConfig.VECTOR_POINT_STYLE)
elif qgslayer.geometryType() == QGis.Line:
style = ProcessingConfig.getSetting(ProcessingConfig.VECTOR_LINE_STYLE)
else:
style = ProcessingConfig.getSetting(ProcessingConfig.VECTOR_POLYGON_STYLE)
qgslayer.loadNamedStyle(style)
QgsMapLayerRegistry.instance().addMapLayers([qgslayer])
if prjSetting:
settings.setValue('/Projections/defaultBehaviour', prjSetting)
return qgslayer
def load(fileName, name=None, crs=None, style=None, isRaster=False):
"""Loads a layer/table into the current project, given its file.
"""
if fileName is None:
return
prjSetting = None
settings = QgsSettings()
if crs is not None:
prjSetting = settings.value('/Projections/defaultBehavior')
settings.setValue('/Projections/defaultBehavior', '')
if name is None:
name = os.path.split(fileName)[1]
if isRaster:
qgslayer = QgsRasterLayer(fileName, name)
if qgslayer.isValid():
if crs is not None and qgslayer.crs() is None:
qgslayer.setCrs(crs, False)
if style is None:
style = ProcessingConfig.getSetting(ProcessingConfig.RASTER_STYLE)
qgslayer.loadNamedStyle(style)
QgsProject.instance().addMapLayers([qgslayer])
else:
if prjSetting:
settings.setValue('/Projections/defaultBehavior', prjSetting)
raise RuntimeError('Could not load layer: ' + str(fileName) +
'\nCheck the processing framework log to look for errors')
else:
qgslayer = QgsVectorLayer(fileName, name, 'ogr')
if qgslayer.isValid():
if crs is not None and qgslayer.crs() is None:
qgslayer.setCrs(crs, False)
if style is None:
if qgslayer.geometryType() == QgsWkbTypes.PointGeometry:
style = ProcessingConfig.getSetting(ProcessingConfig.VECTOR_POINT_STYLE)
elif qgslayer.geometryType() == QgsWkbTypes.LineGeometry:
style = ProcessingConfig.getSetting(ProcessingConfig.VECTOR_LINE_STYLE)
else:
style = ProcessingConfig.getSetting(ProcessingConfig.VECTOR_POLYGON_STYLE)
qgslayer.loadNamedStyle(style)
QgsProject.instance().addMapLayers([qgslayer])
if prjSetting:
settings.setValue('/Projections/defaultBehavior', prjSetting)
return qgslayer
def create_default_project(available_maps, visible_maps, project_template, authcfg=None):
"""Create a default project from a template and return it as a string"""
layers = []
for m in available_maps:
connstring = u'type=xyz&url=%(url)s'
if authcfg is not None:
connstring = u'authcfg=%(authcfg)s&' + connstring
layer = QgsRasterLayer(connstring % {
'url': quote(m['endpoint']),
'authcfg': authcfg,
}, m['name'], 'wms')
# I've no idea why the following is required even if the crs is specified
# in the layer definition
layer.setCrs(QgsCoordinateReferenceSystem('EPSG:3857'))
layers.append(layer)
if len(layers):
xml = QgsMapLayer.asLayerDefinition(layers)
maplayers = "\n".join(xml.toString().split("\n")[3:-3])
layer_tree_layer = ""
custom_order = ""
legend_layer = ""
layer_coordinate_transform = ""
for layer in layers:
is_visible = layer.name() in visible_maps
values = {'name': layer.name(), 'id': layer.id(), 'visible': ('1' if is_visible else '0'), 'checked': ('Qt::Checked' if is_visible else 'Qt::Unchecked')}
custom_order += "<item>%s</item>" % layer.id()
layer_tree_layer += """
<layer-tree-layer expanded="1" checked="%(checked)s" id="%(id)s" name="%(name)s">
<customproperties/>
</layer-tree-layer>""" % values
legend_layer += """
<legendlayer drawingOrder="-1" open="true" checked="%(checked)s" name="%(name)s" showFeatureCount="0">
<filegroup open="true" hidden="false">
<legendlayerfile isInOverview="0" layerid="%(id)s" visible="%(visible)s"/>
</filegroup>
</legendlayer>""" % values
layer_coordinate_transform += '<layer_coordinate_transform destAuthId="EPSG:3857" srcAuthId="EPSG:3857" srcDatumTransform="-1" destDatumTransform="-1" layerid="%s"/>' % layer.id()
tpl = ""
with open(project_template, 'rb') as f:
tpl = f.read()
for tag in ['custom_order', 'layer_tree_layer', 'legend_layer', 'layer_coordinate_transform', 'maplayers']:
tpl = tpl.replace("#%s#" % tag.upper(), locals()[tag])
return tpl
else:
return None
def createDefaultProject(available_maps, visible_maps, project_template, authcfg=None):
"""Create a default project from a template and return it as a string"""
layers = []
for m in available_maps:
connstring = u'type=xyz&url={url}'
if authcfg is not None:
connstring = u'authcfg={authcfg}&' + connstring
layer = QgsRasterLayer(connstring.format(url=urllib2.quote("{}?version={}".format(m['endpoint'], pluginSetting("apiVersion"))),
authcfg=authcfg), m['name'], "wms")
# I've no idea why the following is required even if the crs is specified
# in the layer definition
layer.setCrs(QgsCoordinateReferenceSystem('EPSG:3857'))
layers.append(layer)
if len(layers):
xml = QgsMapLayer.asLayerDefinition(layers)
maplayers = "\n".join(xml.toString().split("\n")[3:-3])
layer_tree_layer = ""
custom_order = ""
legend_layer = ""
layer_coordinate_transform = ""
for layer in layers:
is_visible = layer.name() in visible_maps
values = {'name': layer.name(), 'id': layer.id(), 'visible': ('1' if is_visible else '0'), 'checked': ('Qt::Checked' if is_visible else 'Qt::Unchecked')}
custom_order += "<item>%s</item>" % layer.id()
layer_tree_layer += """
<layer-tree-layer expanded="1" checked="%(checked)s" id="%(id)s" name="%(name)s">
<customproperties/>
</layer-tree-layer>""" % values
legend_layer += """
<legendlayer drawingOrder="-1" open="true" checked="%(checked)s" name="%(name)s" showFeatureCount="0">
<filegroup open="true" hidden="false">
<legendlayerfile isInOverview="0" layerid="%(id)s" visible="%(visible)s"/>
</filegroup>
</legendlayer>""" % values
layer_coordinate_transform += '<layer_coordinate_transform destAuthId="EPSG:3857" srcAuthId="EPSG:3857" srcDatumTransform="-1" destDatumTransform="-1" layerid="%s"/>' % layer.id()
tpl = ""
with open(project_template, 'rb') as f:
tpl = f.read()
for tag in ['custom_order', 'layer_tree_layer', 'legend_layer', 'layer_coordinate_transform', 'maplayers']:
tpl = tpl.replace("#%s#" % tag.upper(), locals()[tag])
return tpl
else:
return None
def testRenderWithPainterClipRegions(self):
raster_layer = QgsRasterLayer(
os.path.join(TEST_DATA_DIR, 'rgb256x256.png'))
self.assertTrue(raster_layer.isValid())
raster_layer.setCrs(QgsCoordinateReferenceSystem('EPSG:3857'))
mapsettings = QgsMapSettings()
mapsettings.setOutputSize(QSize(400, 400))
mapsettings.setOutputDpi(96)
mapsettings.setDestinationCrs(
QgsCoordinateReferenceSystem('EPSG:4326'))
mapsettings.setExtent(
QgsRectangle(0.0001451, -0.0001291, 0.0021493, -0.0021306))
mapsettings.setLayers([raster_layer])
region = QgsMapClippingRegion(
QgsGeometry.fromWkt(
'Polygon ((0.00131242078273144 -0.00059281669806561, 0.00066744230712249 -0.00110186995774045, 0.00065145110524788 -0.00152830200772984, 0.00141369839460392 -0.00189076925022083, 0.00210931567614912 -0.00094195793899443, 0.00169354442740946 -0.00067810310806349, 0.00131242078273144 -0.00059281669806561))'
))
region.setFeatureClip(
QgsMapClippingRegion.FeatureClippingType.ClipPainterOnly)
region2 = QgsMapClippingRegion(
QgsGeometry.fromWkt(
'Polygon ((0.00067010750743492 -0.0007740503193111, 0.00064612070462302 -0.00151764120648011, 0.00153629760897587 -0.00158693641460339, 0.0014909892036645 -0.00063812510337699, 0.00106722235398754 -0.00055816909400397, 0.00067010750743492 -0.0007740503193111))'
))
region2.setFeatureClip(
QgsMapClippingRegion.FeatureClippingType.ClipToIntersection)
mapsettings.addClippingRegion(region)
mapsettings.addClippingRegion(region2)
renderchecker = QgsMultiRenderChecker()
renderchecker.setMapSettings(mapsettings)
renderchecker.setControlPathPrefix('rasterlayerrenderer')
renderchecker.setControlName('expected_painterclip_region')
result = renderchecker.runTest('expected_painterclip_region')
self.report += renderchecker.report()
self.assertTrue(result)
def load(fileName, name=None, crs=None, style=None, isRaster=False):
"""
Loads a layer/table into the current project, given its file.
.. deprecated:: 3.0
Do not use, will be removed in QGIS 4.0
"""
from warnings import warn
warn("processing.load is deprecated and will be removed in QGIS 4.0",
DeprecationWarning)
if fileName is None:
return
prjSetting = None
settings = QgsSettings()
if crs is not None:
prjSetting = settings.value('/Projections/defaultBehavior')
settings.setValue('/Projections/defaultBehavior', '')
if name is None:
name = os.path.split(fileName)[1]
if isRaster:
qgslayer = QgsRasterLayer(fileName, name)
if qgslayer.isValid():
if crs is not None and qgslayer.crs() is None:
qgslayer.setCrs(crs, False)
if style is None:
style = ProcessingConfig.getSetting(
ProcessingConfig.RASTER_STYLE)
qgslayer.loadNamedStyle(style)
QgsProject.instance().addMapLayers([qgslayer])
else:
if prjSetting:
settings.setValue('/Projections/defaultBehavior', prjSetting)
raise RuntimeError(
QCoreApplication.translate(
'dataobject',
'Could not load layer: {0}\nCheck the processing framework log to look for errors.'
).format(fileName))
else:
qgslayer = QgsVectorLayer(fileName, name, 'ogr')
if qgslayer.isValid():
if crs is not None and qgslayer.crs() is None:
qgslayer.setCrs(crs, False)
if style is None:
if qgslayer.geometryType() == QgsWkbTypes.PointGeometry:
style = ProcessingConfig.getSetting(
ProcessingConfig.VECTOR_POINT_STYLE)
elif qgslayer.geometryType() == QgsWkbTypes.LineGeometry:
style = ProcessingConfig.getSetting(
ProcessingConfig.VECTOR_LINE_STYLE)
else:
style = ProcessingConfig.getSetting(
ProcessingConfig.VECTOR_POLYGON_STYLE)
qgslayer.loadNamedStyle(style)
QgsProject.instance().addMapLayers([qgslayer])
if prjSetting:
settings.setValue('/Projections/defaultBehavior', prjSetting)
return qgslayer
def calculate_zensus(self, gemeinden, default_kk_index, base_kk):
'''
return the centroids of the zensus cells as points inside the
given area
'''
self.log('Extrahiere Siedlungszellen aus Zensusdaten...')
epsg = self.project.settings.EPSG
bbox = get_bbox(gemeinden.table)
zensus_file = os.path.join(self.project.basedata.base_path,
self.project.settings.ZENSUS_500_FILE)
clipped_raster, raster_epsg = clip_raster(zensus_file, bbox)
raster_layer = QgsRasterLayer(clipped_raster)
# workaround QGIS 3.10.2+: does not set crs correctly when reading
# raster file
crs = QgsCoordinateReferenceSystem()
crs.createFromSrid(raster_epsg)
raster_layer.setCrs(crs)
parameters = {
'INPUT_RASTER': raster_layer,
'RASTER_BAND': 1,
'FIELD_NAME': 'value',
'OUTPUT': 'memory:'
}
point_layer = processing.run('native:pixelstopoints',
parameters)['OUTPUT']
point_layer.setSubsetString('value>0')
overlay = create_layer(gemeinden,
'Polygon',
fields=['ags'],
name='overlay',
epsg=epsg,
target_epsg=raster_layer.crs().postgisSrid())
#clip_tmp = tempfile.NamedTemporaryFile(suffix='.gpkg').name
parameters = {
'INPUT': point_layer,
'OVERLAY': overlay,
'OUTPUT': 'memory:'
}
clipped_layer = processing.run('native:clip', parameters)['OUTPUT']
parameters = {
'INPUT': clipped_layer,
'OVERLAY': overlay,
'OUTPUT': 'memory:'
}
clipped_w_ags = processing.run('native:intersection',
parameters)['OUTPUT']
self.log('Schreibe Siedlungszellen in Datenbank...')
tr = QgsCoordinateTransform(
clipped_w_ags.crs(), QgsCoordinateReferenceSystem(f'epsg:{epsg}'),
QgsProject.instance())
ags_list = [g.ags for g in gemeinden]
gem_acc = dict([(a, [0, 0]) for a in ags_list])
for feature in clipped_w_ags.getFeatures():
ew = feature.attribute('VALUE')
if ew <= 0:
continue
# for some reason all geometries are MultiPoint with length 1
geom = feature.geometry()
geom.transform(tr)
point = geom.asMultiPoint()[0]
ags = feature.attribute('ags')
# take default kk_index only atm (there is a table (KK2015) with
# indices in the basedata though)
kk_index = default_kk_index
kk = ew * base_kk * kk_index / 100
self.cells.add(ew=ew,
kk_index=kk_index,
kk=kk,
id_teilflaeche=-1,
in_auswahl=True,
geom=point,
ags=ags)
# accumulate einwohner and kaufkraft
acc = gem_acc[ags]
acc[0] += ew
acc[1] += kk
for ags, (ew, kk) in gem_acc.items():
gem = self.centers.get(ags=ags)
gem.ew = ew
gem.kk = kk
gem.save()
def runAlgorithm(self):
start = timeit.default_timer()
self._id = str(np.random.randint(1, 5000))
logMessageFile = open(
os.path.dirname(__file__) + "/logLCP" + self._id + ".txt", "w")
logMessage = "LCPNetwork plugin init - loading points and base raster layers with id: " + self._id
QgsMessageLog.logMessage(logMessage, tag="LCPNetwork", level=Qgis.Info)
logMessageFile.write(logMessage + "\n")
origins, destinations = self.loadPoints()
baseRaster = self.loadBaseRaster()
logMessage = "computing " + str(
origins.featureCount()) + " origin points towards " + str(
destinations.featureCount()) + " destinations"
QgsMessageLog.logMessage(logMessage, tag="LCPNetwork", level=Qgis.Info)
logMessageFile.write(logMessage + "\n")
self.transform = baseRaster.GetGeoTransform()
self.projection = baseRaster.GetProjection()
nodata = baseRaster.GetRasterBand(1).GetNoDataValue()
logMessage = "loading cost map with nodata value " + str(nodata)
QgsMessageLog.logMessage(logMessage, tag="LCPNetwork", level=Qgis.Info)
logMessageFile.write(logMessage + "\n")
topLeft = QgsPointXY(self.transform[0], self.transform[3])
pointsListO = []
for point in origins.getFeatures():
pointsListO.append(point.geometry().asPoint())
pointsListD = []
for point in destinations.getFeatures():
pointsListD.append(point.geometry().asPoint())
## create the list of lcps
lcps = []
numThreads = os.cpu_count()
logMessage = "creating " + str(numThreads) + " threads"
QgsMessageLog.logMessage(logMessage, tag="LCPNetwork", level=Qgis.Info)
logMessageFile.write(logMessage + "\n")
pool = futures.ThreadPoolExecutor(numThreads)
index = 0
results = []
for source in pointsListO:
results.append(
pool.submit(self.computeOnePath, source, index, start,
baseRaster, pointsListD, lcps, logMessageFile))
index = index + 1
for future in futures.as_completed(results):
logMessageFile.write(future.result() + "\n")
logMessage = "all lcps computed at time: " + str(
"%.2f" % (timeit.default_timer() - start))
QgsMessageLog.logMessage(logMessage, tag="LCPNetwork", level=Qgis.Info)
logMessageFile.write(logMessage + "\n")
# same CRS than base raster cost map
crs = QgsCoordinateReferenceSystem()
crs.createFromString(baseRaster.GetProjection())
for i in range(index):
outputName = os.path.dirname(
__file__) + "/distances" + self._id + "_" + str(i) + ".tif"
newRasterQGIS = QgsRasterLayer(
outputName, "distances" + self._id + "_" + str(i))
newRasterQGIS.setContrastEnhancement(
QgsContrastEnhancement.StretchToMinimumMaximum)
newRasterQGIS.setCrs(crs)
QgsProject.instance().addMapLayer(newRasterQGIS)
# add the list of lcps to the network layer
network = self.iface.addVectorLayer("LineString?crs=" + crs.authid(),
"least cost path network",
"memory")
network.dataProvider().addFeatures(lcps)
logMessage = "LCPNetwork plugin finished! time (sec.): " + str(
"%.2f" % (timeit.default_timer() - start))
QgsMessageLog.logMessage(logMessage, tag="LCPNetwork", level=Qgis.Info)
logMessageFile.write(logMessage + "\n")
logMessageFile.close()
def process(self, data):
# data = {upd/npd: {dating = [calendar years BP, ...], uncert = [calendar years, ...], coords = [[x, y], ...], accur = [accuracy, ...]}}
UPD_t_ds = np.round(data["upd"]["dating"]).astype(
int
) # mean datings of archaeological components (calendar years BP)
UPD_uncert_ds = np.round(data["upd"]["uncert"]).astype(
int) # uncertainties of the datings (calendar years)
UPD_As = np.round(data["upd"]["coords"]).astype(
int) # spatial coordinates of archaeological components (metres)
UPD_accurs = np.round(data["upd"]["accur"]).astype(
int
) # accuracies of spatial coordinates of archaeological components (+-metres)
NPD_t_ds = np.round(data["npd"]["dating"]).astype(
int
) # measured radiocarbon ages of archaeological components (radiocarbon years)
NPD_uncert_ds = np.round(data["npd"]["uncert"]).astype(
int
) # 1-sigma uncertainties of the measured radiocarbon ages (radiocarbon years)
NPD_As = np.round(data["npd"]["coords"]).astype(
int) # spatial coordinates of archaeological components (metres)
NPD_accurs = np.round(data["npd"]["accur"]).astype(
int
) # accuracies of spatial coordinates of archaeological components (+-metres)
if (not UPD_t_ds.size) and (not NPD_t_ds.size):
return
s_halflife = self.s_duration / 2 # expected half-life of a settlement in years
s_radius = self.s_diameter / 2 # expected radius of a settlement in metres
# temporal extent
t_min = np.inf
t_max = -np.inf
if UPD_t_ds.size:
t_min = min(t_min,
(UPD_t_ds - UPD_uncert_ds).min() - self.s_duration)
t_max = max(t_max,
(UPD_t_ds + UPD_uncert_ds).max() + self.s_duration)
if NPD_t_ds.size:
t_min = min(t_min,
(NPD_t_ds - 2 * NPD_uncert_ds).min() - self.s_duration)
t_max = max(t_max,
(NPD_t_ds + 2 * NPD_uncert_ds).max() + self.s_duration)
t_min, t_max = [
int(round(value / 10) * 10) for value in [t_min, t_max]
]
if self.time_from is not None:
t_max = min(t_max, self.time_from)
if self.time_to is not None:
t_min = max(t_min, self.time_to)
ts_slices = np.arange(t_max, t_min - 2 * self.time_step,
-self.time_step).tolist() # times of time slices
# prepare lookup for probability distributions of 14C datings
self.setLabelText("Calibrating radiocarbon dates")
cal_curve = load_curve(
os.path.join(os.path.dirname(__file__), "intcal13.14c")
) # [[CalBP, ConvBP, CalSigma], ...], sorted by CalBP
# filter calibration curve to include only time-step dates
cal_curve = cal_curve[(cal_curve[:, 0] >= t_min)
& (cal_curve[:, 0] <= t_max)][::-1]
ts = cal_curve[:, 0]
curve_conv_age = cal_curve[:, 1]
curve_uncert = cal_curve[:, 2]
if ts[-1] < ts_slices[-1]:
ts_slices.append(ts[-1])
# calculate probability distributions for all combinations of 14c age and uncertainty
unique_dates = set() # ((age, uncert), ...)
for idx in range(NPD_t_ds.shape[0]):
unique_dates.add((NPD_t_ds[idx], NPD_uncert_ds[idx]))
lookup_14c = defaultdict(
dict
) # {age: {uncert: D, ...}, ...}; D[ti] = p; where ti = index in ts, p = probability
cmax = len(unique_dates)
cnt = 0
for age, uncert in unique_dates:
QtWidgets.QApplication.processEvents()
if not self.running:
return
self.setValue((cnt / cmax) * 100)
cnt += 1
lookup_14c[age][uncert] = calibrate(age, uncert, curve_conv_age,
curve_uncert)
# prepare lookup of spatial probability distribution around evidence points
self.setLabelText("Calculating spatial probability distribution")
self.setValue(0)
accurs = set()
accurs.update(UPD_accurs.tolist())
accurs.update(NPD_accurs.tolist())
lookup_f_s = {
} # {accur: M, ...}; M[n, n] = f_s(d, accur, s_radius); where center is point A and n is 2 * [maximum distance from A in raster units] + 1; where f_s > 0
cnt = 0
cmax = len(accurs)
for accur in accurs:
QtWidgets.QApplication.processEvents()
if not self.running:
return
self.setValue((cnt / cmax) * 100)
cnt += 1
r = int(round((accur + 2 * s_radius) / self.cell_size))
n = 2 * r + 1
lookup_f_s[accur] = np.zeros((n, n), dtype=float)
rcs = np.argwhere(np.ones((n, n), dtype=bool))
mask = (rcs > r).all(axis=1)
for row, col in rcs[mask]:
d = (((row - r)**2 + (col - r)**2)**0.5) * self.cell_size
if self.approximate:
p = f_s_approx(d, accur, s_radius)
else:
p = f_S_lens(d, accur, s_radius) / f_S(accur, s_radius)
if (p == np.inf) or np.isnan(p):
p = 0
lookup_f_s[accur][row, col] = p
lookup_f_s[accur][n - row, col] = p
lookup_f_s[accur][row, n - col] = p
lookup_f_s[accur][n - row, n - col] = p
lookup_f_s[accur][0, 0] = lookup_f_s[accur][0, 1]
# spatial extent
row_min, col_min = np.inf, np.inf
row_max, col_max = -np.inf, -np.inf
for As, accurs in [[UPD_As, UPD_accurs], [NPD_As, NPD_accurs]]:
for idx in range(As.shape[0]):
A = As[idx]
accur = accurs[idx]
r = int(lookup_f_s[accur].shape[0] / 2)
col, row = np.round(A / self.cell_size).astype(int)
row_min = min(row_min, row - r - 1)
col_min = min(col_min, col - r - 1)
row_max = max(row_max, row + r)
col_max = max(col_max, col + r)
width, height = (col_max - col_min), (row_max - row_min)
x0, y0 = col_min * self.cell_size, row_min * self.cell_size
# calculate time-slices
self.setLabelText("Generating time-slices")
paths = []
summed = []
val_max = -np.inf
grid_summed = np.zeros((height, width), dtype=float)
t_slice_prev = ts_slices.pop(0)
t_slice = ts_slices.pop(0)
n_slice = 1
for ti in range(ts.shape[0]):
QtWidgets.QApplication.processEvents()
if not self.running:
return
self.setValue((ti / ts.shape[0]) * 100)
grid = np.ones((height, width), dtype=float)
for idx in range(UPD_t_ds.shape[0]):
t_d = UPD_t_ds[idx]
uncert_d = UPD_uncert_ds[idx]
A = UPD_As[idx]
accur = UPD_accurs[idx]
M = 1 - lookup_f_s[accur] * f_t_UPD(ts[ti], t_d, uncert_d,
s_halflife)
r = int((M.shape[0] - 1) / 2)
col0, row0 = np.round((A - [x0, y0]) / self.cell_size - r -
1).astype(int)
grid[row0:row0 + M.shape[0], col0:col0 + M.shape[0]] *= M
for idx in range(NPD_t_ds.shape[0]):
t_d = NPD_t_ds[idx]
uncert_d = NPD_uncert_ds[idx]
A = NPD_As[idx]
accur = NPD_accurs[idx]
M = 1 - lookup_f_s[accur] * f_t_NPD(
ts[ti], s_halflife, lookup_14c[t_d][uncert_d], ts)
r = int((M.shape[0] - 1) / 2)
col0, row0 = np.round((A - [x0, y0]) / self.cell_size - r -
1).astype(int)
grid[row0:row0 + M.shape[0], col0:col0 + M.shape[0]] *= M
grid = 1 - grid
grid[np.isnan(grid)] = 0
grid[grid == np.inf] = 0
summed.append(grid.sum())
if ts[ti] <= t_slice:
val_max = max(val_max, grid_summed.max())
t_ce, cebce = bp_to_ce(t_slice_prev)
t_ce2, cebce2 = bp_to_ce(t_slice)
datestr = "%03d_%d_%s_-_%d_%s" % (n_slice, t_ce, cebce, t_ce2,
cebce2)
paths.append([
datestr,
os.path.join(self.path_layers, "ede_%s.tif" % (datestr))
])
self.save_raster(grid_summed, x0, y0, paths[-1][1])
t_slice_prev = t_slice
t_slice = ts_slices.pop(0)
n_slice += 1
grid_summed[:] = grid
else:
grid_summed += grid
if self.path_summed:
self.save_summed(ts, summed)
project = QgsProject.instance()
val_max = val_max * 0.9
self.setLabelText("Rendering time-slices")
cnt = 0
cmax = len(paths)
for datestr, path in paths:
QtWidgets.QApplication.processEvents()
if not self.running:
return
self.setValue((cnt / cmax) * 100)
cnt += 1
layer = QgsRasterLayer(path, "EDE_%s" % (datestr))
layer.setCrs(self.crs)
s = QgsRasterShader()
c = QgsColorRampShader()
c.setColorRampType(QgsColorRampShader.Interpolated)
i = []
i.append(QgsColorRampShader.ColorRampItem(0, self.colors[0]))
i.append(
QgsColorRampShader.ColorRampItem(val_max / 2, self.colors[1]))
i.append(QgsColorRampShader.ColorRampItem(val_max, self.colors[2]))
c.setColorRampItemList(i)
s.setRasterShaderFunction(c)
ps = QgsSingleBandPseudoColorRenderer(layer.dataProvider(), 1, s)
ps.setClassificationMin(0)
ps.setClassificationMax(val_max)
layer.setRenderer(ps)
self.save_rendered(
layer, os.path.join(self.path_rendered, "%s.tif" % (datestr)))
project.addMapLayer(layer)
canvas.show()
vlayer = QgsVectorLayer(
os.getenv("TEST_DATA", "testdata/Australia_Airports.geojson"),
"Airports layer",
"ogr",
)
if not vlayer.isValid():
print("Vector layer failed to load!")
ecw_file = os.getenv("TEST_ECW", "testdata/64002.ecw")
ecw_layer = QgsRasterLayer(ecw_file, "Canberra 100K Map", "gdal")
if ecw_layer.isValid():
ecw_layer.setCrs(
QgsCoordinateReferenceSystem("EPSG:28355")
)
QgsProject.instance().addMapLayer(ecw_layer)
else:
print("ECW layer failed to load!")
urlWithParams = "type=xyz&url=https://a.tile.openstreetmap.org/%7Bz%7D/%7Bx%7D/%7By%7D.png&zmax=19&zmin=0&crs=EPSG3857"
rlayer = QgsRasterLayer(urlWithParams, "OpenStreetMap", "wms")
if rlayer.isValid():
QgsProject.instance().addMapLayer(rlayer)
else:
print("XYZ layer failed to load!")
# set extent to the extent of our layer
canvas.setExtent(vlayer.extent())
try:
dataOut = tempfile.mktemp('.tif')
except Exception, e:
raise Exception(
'Problem creating temporary file to store raster data: ' + str(e))
# TODO: Work out if the response is an XML error
update.emit({'progress': 10, 'message': 'Downloading file...'})
urllib.urlretrieve(bigURL, dataOut)
# Load data as QgsRasterLayer and then re-save it, ensuring it has the correct projection info
a = QgsRasterLayer(dataOut, "temporary raster layer")
# Double-confirm projection info (sometimes WCS has it in the meta but not the file)
crs = a.crs()
crs.createFromId(int(srs.split(':')[1]))
a.setCrs(crs)
update.emit({'progress': 90, 'message': 'Saving file...'})
writer = QgsRasterFileWriter(output_file)
pipe = QgsRasterPipe()
width, height = a.width(), a.height()
extent = a.extent()
provider = a.dataProvider()
pipe.set(provider.clone())
writer.writeRaster(pipe, width, height, extent, a.crs())
a = None
pipe = None
provider = None
# Delete temp file
os.remove(dataOut)
return output_file
def select_HDF5_file(self):
"""Run method that performs all the real work"""
# show the dialog
#self.dlg.show()
# Run the dialog event loop
result = self.dlg.exec_()
# close the dialog
self.dlg.close()
# See if OK was pressed
if result:
#### to open windows browser and search for HDF5 files only:
myfileNames = QFileDialog.getOpenFileNames(self.dlg,
self.tr("HDF5 File Selector"),
"",
self.tr("HDF5 (*.hdf5 *.h5)"))
#### to loop through all selected HDF5 files, just handling one for now
for i in myfileNames:
#### bind the HDF5 file
myfile = QgsRasterLayer(i)
#### to deal with multiple datasets within file
if (len(myfile.subLayers()) > 1):
#### to open dataset with desired data and name it Reflectance
#mydset = QgsRasterLayer(myfile.subLayers()[0], 'Reflectance')
fileName = myfile.subLayers()[0]
fileInfo = QFileInfo(fileName)
baseName = fileInfo.baseName()
mydset = QgsRasterLayer(fileName, baseName)
##################################### Trials of setting proper extent begin here
print 'Extent before: '
print mydset.extent().toString()
########################## test almost worked
### loaded layer in right place but without data
#rect = QgsRectangle(326380.0,4103390.0-2853,326380.0+1332,4103390.0)
#mydset.setExtent(rect)
####################################
######################## test almost worked
### loaded layer in right place but without data
#size = QSizeF(1,1)
#point = QPointF(326380.0, 4103390.0)
#rect = QRectF(point, size)
#rect = QgsRectangle(rect)
#mydset.setExtent(rect)
###################################
########################## did not change extent
#rect = QgsRectangle(326380.0,4103390.0-2853,326380.0+1332,4103390.0)
#context = QgsRenderContext()
#context.setExtent(rect)
#mydset.draw(context)
####################################
#################################### did not change extent
#size = QSizeF(1,1)
#point = QPointF(326380.0, 4103390.0)
#rect = QRectF(point, size)
#rect = QgsRectangle(rect)
#context = QgsRenderContext()
#context.setExtent(rect)
#mydset.draw(context)
#####################################
###################################### did not change extent
#rect = QgsRectangle(326380.0,4103390.0-2853,326380.0+1332,4103390.0)
#context = QgsRenderContext()
#context.setExtent(rect)
#print 'Context extent: '
#print context.extent().toString() #this printed correct extent
#mydset.createMapRenderer(context)
#######################################
######################## test almost worked
### loaded layer in right place but without data
#rect = QgsRectangle(326380.0,4103390.0-2853,326380.0+1332,4103390.0)
#provider = mydset.dataProvider().clone()
#mydset.setExtent(rect)
#provider.reloadData()
######################################
########################################
# did not change extent, loaded data
#rect = QgsRectangle(326380.0,4103390.0-2853,326380.0+1332,4103390.0)
#context = QgsRenderContext()
#context.setExtent(rect)
#renderer = mydset.createMapRenderer(context)
#renderer.render()
#########################################
###########################################
# did not change extent, loaded data
#rect = QgsRectangle(326380.0,4103390.0-2853,326380.0+1332,4103390.0)
#mydset.dataProvider().block(52, rect, 1332, 2853)
##########################################
#############################################
# did not change extent, loaded data
#rect = QgsRectangle(326380.0,4103390.0-2853,326380.0+1332,4103390.0)
#mydset.dataProvider().block(426, rect, 1332, 2853)
###############################################
#################################################
# changed extent but overwrote to no data
#rect = QgsRectangle(326380.0,4103390.0-2853,326380.0+1332,4103390.0)
#mydset.setExtent(rect)
#mydset.dataProvider().reload()
####################################################
####################################################
# changed extent but overwrote to no data
#rect = QgsRectangle(326380.0,4103390.0-2853,326380.0+1332,4103390.0)
#mydset.setExtent(rect)
#mydset.dataProvider().block(52, rect, 1332, 2853)
#mydset.dataProvider().reload()
#####################################################
#############################################
# not setting new cloned data provider correctly
# method wants QString object but gets meaningless string
#rect = QgsRectangle(326380.0,4103390.0-2853,326380.0+1332,4103390.0)
#provider = mydset.dataProvider()
#print 'Provider: '
#print provider
#clone = provider.clone()
#print 'Provider clone: '
#print clone
#clone.block(1, rect, 1332, 2853)
#mydset.setDataProvider(str(clone))
#print 'New provider: '
#print mydset.dataProvider()
##############################################
######## printing result of extent changes
print 'Extent after: '
print mydset.extent().toString()
###################################
####################################### Trials of setting proper extent end here
#### to set proper Coordinate Reference System (crs) info
crs = mydset.crs()
crs.createFromId(32611)
mydset.setCrs(crs)
### this was josh's recommendation
#mycrs = QgsCoordinateReferenceSystem(32611)
#self.iface.mapCanvas().mapRenderer().setDestinationCrs(mycrs)
#### to set raster bands to load as RGB
mydset.renderer().setGreenBand(34)
mydset.renderer().setRedBand(52)
mydset.renderer().setBlueBand(18)
####### Tristan changes
#myrenderer = mydset.renderer()
#print 'Renderer Type: '
#print mydset.renderer().type()
# print 'Renderer block before: '
#print myrenderer.block(426, rect, 1, 1)
#myrenderer.block(426, rect, 1, 1)
#print 'Renderer block after: '
#print myrenderer.block() not enough arguments
#if hasattr(mydset, "setCacheImage"):
#mydset.setCacheImage(None)
#mydset.triggerRepaint()
#mydset.dataProvider().reloadData()
#mydset.triggerRepaint()
#self.iface.legendInterface().refreshLayerSymbology(mydset)
#mydset.reload()
#mydset.reloadData()
#mydset.triggerRepaint()
#mydset.draw()
#print 'Extent: '
#print mydset.extent().toString()
# ident = rlayer.dataProvider().identify(QgsPoint(15.30, 40.98), \
# QgsRaster.IdentifyFormatValue)
# if ident.isValid():
# print ident.results()
####### End Tristan changes
#### to add selected dataset/raster to map canvas
QgsMapLayerRegistry.instance().addMapLayer(mydset)
#canvas=QgsMapCanvas()
#canvas.show()
#canvas.setExtent(mydset.extent())
#canvas.setLayerSet([QgsMapCanvasLayer(mydset)])
####################################### Script for getting all raster values
# takes 11 minutes to run on (426,1332,2583)
#list = []
#for x in range(mydset.width()):
#x_coord = x
#print 'Doing ' +str(x) + 'x right now...'
#for y in range(mydset.height()):
#y_coord = y
#ident = mydset.dataProvider().identify(QgsPoint(x_coord, y_coord), \
#QgsRaster.IdentifyFormatValue)
#list.append(ident.results().values())
#print 'Length of list is: '
#print len(list)
#print 'Length of list[0] is: '
#print len(list[0])
############################################
#if ident.isValid():
#print ident.results()
def layerSubsetSave(rasterLayer: QgsRasterLayer, domainLayer: QgsVectorLayer,
subsetName: str) -> None:
"""Description: Processes a raster image into a vector polygon ocean/land mask.
Make sure to save the shapefile, as it will be deleted otherwise!
Input: QgsRasterLayer rasterLayer - layer that contains the raster image to process
QgsVectorLayer domainLayer - layer that contains a polygon specifying the bounds of the raster image to process
string name - output file name.
Output: QgsRasterLayer, QgsVectorLayer - objects referencing the new mask layers
"""
# Get basic file name information on geotiff, raster image, masked raster subset image, and masked vector subset shp file
fileSource = rasterLayer.source()
fileInfo = QFileInfo(fileSource)
fileName = fileInfo.baseName()
savePaths = getSavePaths(fileSource, domainLayer, 'tif')
subsetPath = savePaths + '/' + subsetName + '.tif'
# Load geotiff and get domain layer/bounding box of area to mask
geotiff = gdal.Open(fileSource)
feature = domainLayer.getFeature(0)
domain = feature.geometry().boundingBox()
prj = geotiff.GetProjection()
srs = osr.SpatialReference(wkt=prj)
if srs.GetAttrValue("PROJCS|AUTHORITY", 1) is not None:
epsgCode = srs.GetAttrValue("PROJCS|AUTHORITY", 1)
elif srs.GetAttrValue("AUTHORITY", 1) is not None:
epsgCode = srs.GetAttrValue("AUTHORITY", 1)
else:
epsgCode = str(32621)
rasterCRS = "EPSG:" + epsgCode
crs = rasterLayer.crs()
crs.createFromId(int(epsgCode))
rasterLayer.setCrs(crs)
rasterLayer.triggerRepaint()
#rasterCRS = rasterLayer.crs().authid()
domainCRS = domainLayer.crs().authid()
bounds = geotiffWorldToPixelCoords(geotiff, domain, rasterCRS, domainCRS)
band = geotiff.GetRasterBand(1)
img_full = band.ReadAsArray(0, 0, geotiff.RasterXSize, geotiff.RasterYSize)
img = img_full[int(round(bounds.yMinimum())):int(round(bounds.yMaximum())),
int(round(bounds.xMinimum())):int(round(bounds.xMaximum()))]
print('bounds', bounds.yMinimum(), bounds.yMaximum(), bounds.xMinimum(),
bounds.xMaximum())
print('img.shape', img.shape, 'img_full.shape', img_full.shape)
print("img min/max/mean:", img.min(), img.max(), np.mean(img, axis=(0, 1)))
img = (img.astype(np.float32) / img.max() * 65535).astype(np.uint16)
print("after img min/max/mean:", img.min(), img.max(),
np.mean(img, axis=(0, 1)))
# print('Save subset:', subsetPath, resolve('landsat_raw/' + domainLayer.name() + '/' + subsetName + '.png'))
if not DRY_RUN:
arrayToRaster(img, geotiff, bounds, subsetPath)
imsave(
resolve('landsat_raw/' + domainLayer.name() + '/' + subsetName +
'.png'), img)
# imsave(resolve('small/' + domainLayer.name() + '/' + subsetName + '.png'), img)
# imsave(os.path.join(r'D:\Daniel\Documents\Github\CALFIN Repo\reprocessing\images_1024', domainLayer.name(), subsetName + '.png'), img)
try:
#Gather BQA info
fileSourceBQA = fileSource[:-7] + '_BQA.TIF'
#Save BQA subset
geotiffBQA = gdal.Open(fileSourceBQA)
imgBQA = geotiffBQA.GetRasterBand(1)
imgBQA = imgBQA.ReadAsArray(0, 0, geotiffBQA.RasterXSize,
geotiffBQA.RasterYSize).astype(np.uint16)
imgBQA = imgBQA[
int(round(bounds.yMinimum())):int(round(bounds.yMaximum())),
int(round(bounds.xMinimum())):int(round(bounds.xMaximum()))]
# print('Save BQA subset:', subsetPathBQA, resolve('landsat_raw/' + domainLayer.name() + '/' + subsetName + '_bqa.png'))
if not DRY_RUN:
# arrayToRaster(imgBQA, geotiffBQA, bounds, subsetPathBQA)
# print(fileSourceBQA, geotiffBQA.RasterXSize, geotiffBQA.RasterYSize)
# print(int(round(bounds.yMinimum())), int(round(bounds.yMaximum())), int(round(bounds.xMinimum())), int(round(bounds.xMaximum())))
# imsave(resolve('landsat_raw/' + domainLayer.name() + '/' + subsetName + '_bqa.png'), imgBQA)
pass
#Gather MTL info
fileSourceMTL = fileSource[:-7] + '_MTL.txt'
#Save MTL subset
if not DRY_RUN:
image_feats = [''] * 6
with open(fileSourceMTL, 'r') as image_feats_source_file:
lines = image_feats_source_file.readlines()
for line in lines:
if 'SUN_AZIMUTH =' in line:
image_feats[0] = line.strip()
elif 'SUN_ELEVATION =' in line:
image_feats[1] = line.strip()
elif 'CLOUD_COVER ' in line:
image_feats[2] = line.strip()
elif 'CLOUD_COVER_LAND ' in line:
image_feats[3] = line.strip()
elif 'DATE_ACQUIRED =' in line:
image_feats[4] = line.strip()
elif 'GRID_CELL_SIZE_REFLECTIVE =' in line:
image_feats[5] = line.strip()
savePath = resolve('landsat_raw/' + domainLayer.name() + '/' +
subsetName + '_mtl.txt')
with open(savePath, 'w') as image_feats_dest_file:
for line in image_feats:
image_feats_dest_file.write(str(line) + '\n')
except:
print('No BQA/MTL found for:', subsetName)
return img.shape
def addToDefaultProject(maps, visibleMaps, authcfg=None):
"""Add basemaps to the existing default project"""
layers = []
for m in maps:
connstring = u'type=xyz&url={url}'
if authcfg is not None:
connstring = u'authcfg={authcfg}&' + connstring
layer = QgsRasterLayer(connstring.format(url=urllib2.quote("{}?version={}".format(m['endpoint'], pluginSetting("apiVersion"))),
authcfg=authcfg), m['name'], 'wms')
# I've no idea why the following is required even if the crs is specified
# in the layer definition
layer.setCrs(QgsCoordinateReferenceSystem('EPSG:3857'))
layers.append(layer)
if os.path.isfile(defaultProjectPath()):
backup = defaultProjectPath().replace(
'.qgs', '-%s.qgs' % datetime.now().strftime('%Y-%m-%d-%H_%M_%S'))
shutil.copy2(defaultProjectPath(), backup)
# open default project
with open(defaultProjectPath()) as f:
content = f.read()
doc = QDomDocument()
setOk, errorString, errorLine, errorColumn = doc.setContent(content)
if not setOk:
return False
root = doc.documentElement()
for layer in layers:
is_visible = layer.name() in visibleMaps
xml = QgsMapLayer.asLayerDefinition([layer])
r = xml.documentElement()
mapLayerElement = r.firstChildElement("maplayers").firstChildElement("maplayer")
layerTreeLayerElement = doc.createElement("layer-tree-layer")
layerTreeLayerElement.setAttribute("expanded", "1")
layerTreeLayerElement.setAttribute("checked", "Qt::Checked" if is_visible else "Qt::Unchecked")
layerTreeLayerElement.setAttribute("id", layer.id())
layerTreeLayerElement.setAttribute("name", layer.name())
customPropertiesElement = doc.createElement("customproperties")
layerTreeLayerElement.appendChild(customPropertiesElement)
legendLayerElement = doc.createElement("legendlayer")
legendLayerElement.setAttribute("drawingOrder", "-1")
legendLayerElement.setAttribute("open", "true")
legendLayerElement.setAttribute("checked", "Qt::Checked" if is_visible else "Qt::Unchecked")
legendLayerElement.setAttribute("name", layer.name())
legendLayerElement.setAttribute("showFeatureCount", "0")
filegroupElement = doc.createElement("filegroup")
filegroupElement.setAttribute("open", "true")
filegroupElement.setAttribute("hidden", "false")
legendlayerfileElement = doc.createElement("legendlayerfile")
legendlayerfileElement.setAttribute("isInOverview", "0")
legendlayerfileElement.setAttribute("layerid", layer.id())
legendlayerfileElement.setAttribute("visible", "1" if is_visible else "0")
filegroupElement.appendChild(legendlayerfileElement)
legendLayerElement.appendChild(filegroupElement)
crsElement = doc.createElement("layer_coordinate_transform")
crsElement.setAttribute("destAuthId", "EPSG:3857")
crsElement.setAttribute("srcAuthId", "EPSG:3857")
crsElement.setAttribute("srcDatumTransform", "-1")
crsElement.setAttribute("destDatumTransform", "-1")
crsElement.setAttribute("layerid", layer.id())
itemElement = doc.createElement("item")
text = doc.createTextNode(layer.id())
itemElement.appendChild(text)
e = root.firstChildElement("layer-tree-group")
e.appendChild(layerTreeLayerElement)
e = root.firstChildElement("mapcanvas").firstChildElement("layer_coordinate_transform_info")
e.appendChild(crsElement)
e = root.firstChildElement("layer-tree-canvas").firstChildElement("custom-order")
e.appendChild(itemElement)
e = root.firstChildElement("legend")
e.appendChild(legendLayerElement)
e = root.firstChildElement("projectlayers")
e.appendChild(mapLayerElement)
with open(defaultProjectPath(), "wb+") as f:
f.write(doc.toString(2))
settings = QSettings()
settings.setValue('/qgis/newProjectDefault', True)
return True