def getPoint(self, mapPoint):
self.set_rad.setEnabled(True)
# change tool so you don't get more than one POI
self.canvas.unsetMapTool(self.emitPoint)
self.canvas.setMapTool(self.userTool)
# Get the click
if mapPoint:
self.atk_pt = QgsPoint(mapPoint)
self.distance()
# Specify the geometry type
layer = QgsVectorLayer('Point?crs=epsg:28992', 'Attack Point',
'memory')
style = "style_attack.qml"
qml_path = self.plugin_dir + "/data/" + style
layer.loadNamedStyle(qml_path)
layer.triggerRepaint()
# Set the provider to accept the data source
prov = layer.dataProvider()
# Add a new feature and assign the geometry
feat = QgsFeature()
feat.setGeometry(QgsGeometry.fromPoint(mapPoint))
prov.addFeatures([feat])
# Update extent of the layer
layer.updateExtents()
# Add the layer to the Layers panel
QgsMapLayerRegistry.instance().addMapLayers([layer])
def createASiteFeature(point, attrs):
feature = QgsFeature()
feature.initAttributes(len(attrs) + 1)
for (index, attr) in enumerate(attrs):
feature.setAttribute(index + 1, attr)
# 如果是小区要素，id为(RNC-BSC_SiteId_CellId)
feature.setAttribute(0, str(uuid4()).replace('-', ''))
geom = QgsGeometry.fromPoint(point)
feature.setGeometry(geom)
return feature
def createACellFeature(point, attrs):
feature = QgsFeature()
feature.initAttributes(len(attrs) + 1)
for (index, attr) in enumerate(attrs):
feature.setAttribute(index + 1, attr)
# 如果是小区要素，id为(RNC-BSC_SiteId_CellId)
feature.setAttribute(
0,
str(attrs[6]) + '_' + str(attrs[0]) + '_' + str(attrs[2]))
geom = QgsGeometry.fromPolygon([point])
feature.setGeometry(geom)
return feature
def createASCellFeature(attrs):
feature = QgsFeature()
feature.initAttributes(len(attrs) + 1)
feature.setAttribute(0, str(uuid4()).replace('-', ''))
for (index, attr) in enumerate(attrs):
feature.setAttribute(index + 1, attr)
return feature
def new_feature(self, set_defaults=True, geometry=None, data=None):
"""
Returns a new feature that is created for the layer this form is bound too
:return: A new QgsFeature
"""
layer = self.QGISLayer
fields = layer.fields()
feature = QgsFeature(fields)
if data:
for key, value in data.items():
feature[key] = value
else:
data = {}
if geometry:
feature.setGeometry(geometry)
if set_defaults:
for index in range(fields.count()):
pkindexes = layer.dataProvider().pkAttributeIndexes()
if index in pkindexes and layer.dataProvider().name(
) == 'spatialite':
continue
# Don't override fields we have already set.
if fields.field(index).name() in data:
continue
value = layer.dataProvider().defaultValue(index)
feature[index] = value
# Update the feature with the defaults from the widget config
defaults = self.default_values(feature)
roam.utils.log(defaults)
for key, value in defaults.items():
# Don't override fields we have already set.
if key is None:
continue
datakeys = [key.lower() for key in data.keys()]
if key.lower() in datakeys:
roam.utils.log("Skippping {0}".format(key))
continue
try:
feature[key] = value
except KeyError:
roam.utils.info(
"Couldn't find key {} on feature".format(key))
return feature
def createABasicPointFeature(point, attrs):
feature = QgsFeature()
feature.initAttributes(len(attrs))
for (index, attr) in enumerate(attrs):
feature.setAttribute(index, attr)
geom = QgsGeometry.fromPoint(point)
feature.setGeometry(geom)
return feature
def create_point(self, p1, name):
layer = QgsVectorLayer('Point?crs=%s' % int(self.crs), name, "memory")
mycrs = QgsCoordinateReferenceSystem(int(self.crs), 0)
self.reprojectgeographic = QgsCoordinateTransform(
self.iface.mapCanvas().mapRenderer().destinationCrs(), mycrs)
pr = layer.dataProvider()
point = QgsFeature()
point.setGeometry(
QgsGeometry.fromPoint(self.reprojectgeographic.transform(p1)))
pr.addFeatures([point])
#layer.setCrs(QgsCoordinateReferenceSystem(int(self.crs), 0))
layer.updateExtents()
QgsMapLayerRegistry.instance().addMapLayer(layer)
return p1
def poly(self):
geom = self.rubberband.asGeometry()
# Set the provider to accept the data source
pr = self.layer.dataProvider()
# Add a new feature and assign the geometry
feat = QgsFeature()
feat.setGeometry(geom)
pr.addFeatures([feat])
# Update extent of the layer
self.layer.updateExtents()
self.refreshCanvas(self.layer)
# Add the layer to the Layers panel
QgsMapLayerRegistry.instance().addMapLayers([self.layer])
class Create_vlayer(object):
'''creation of a virtual layer'''
def __init__(self, nom, type):
self.type = type
self.name = nom
self.layer = QgsVectorLayer(self.type, self.name, "memory")
self.pr = self.layer.dataProvider()
def create_point(self, geometry):
# add point to the layer
self.seg = QgsFeature()
self.seg.setGeometry(QgsGeometry.fromPoint(geometry))
self.pr.addFeatures([self.seg])
self.layer.updateExtents()
@property
def display_layer(self):
#end of layer and display layer
QgsProject.instance().addMapLayers([self.layer])
def exit_dialog(self, points, crs):
self.dialog.close()
layer = QgsVectorLayer('LineString', self.name_tracado, "memory")
pr = layer.dataProvider()
print points
anterior = QgsPoint(points[0])
fets = []
for p in points[1:]:
fet = QgsFeature(layer.pendingFields())
fet.setGeometry(QgsGeometry.fromPolyline([anterior, QgsPoint(p)]))
fets.append(fet)
anterior = QgsPoint(p)
pr.addFeatures(fets)
self.crs = crs
layer.setCrs(QgsCoordinateReferenceSystem(int(crs), 0))
layer.updateExtents()
QgsMapLayerRegistry.instance().addMapLayer(layer)
def createMemLayer(line, breaksList):
'''
create memory layer storing all reaches
:return:
'''
# create layer
vl = QgsVectorLayer("LineString", "sinuosity_river", "memory")
pr = vl.dataProvider()
# add fields
pr.addAttributes([
QgsField("reach", QVariant.Int),
QgsField("sinuosity", QVariant.Double),
QgsField("Length", QVariant.Double)
])
vl.updateFields()
# create breaks with initial and final
bk = sorted(breaksList)
bk.insert(0, 0)
bk.append(line.length())
for breack in range(1, len(bk)):
ptInt = line.interpolate(bk[breack - 1])
ptFin = line.interpolate(bk[breack])
reach = splitLine(line, ptInt, ptFin)
# sinuosity calc
dist = qgisdist(ptInt, ptFin)
lenReach = bk[breack] - bk[breack - 1]
# add a feature
fet = QgsFeature()
fet.setGeometry(QgsGeometry.fromPolylineXY(reach))
fet.setAttributes([breack, lenReach / dist, str(lenReach)])
pr.addFeatures([fet])
#vl.updateExtents()
vl.commitChanges()
return vl
def add_point(self, attributes, location_point, layer):
"""
добавление точки по координатам
:param layer:
:param point:
:param attributes:
:return:
"""
caps = layer.dataProvider().capabilities()
if caps & QgsVectorDataProvider.AddFeatures:
feature = QgsFeature(layer.pendingFields())
feature.setAttributes(
attributes
) # feat.setAttribute('name', name) or feat.setAttribute(4, name)
feature.setGeometry(QgsGeometry.fromPoint(location_point))
res = layer.dataProvider().addFeatures([feature])
print("add point")
return res
pass
def run(self):
QgsMessageLog.logMessage(f'Started task {self.description()}',
'TracingCAJ', Qgis.Info)
epsg = self.__hidrometers.crs().postgisSrid()
uri = "LineString?crs=epsg:" + str(
epsg
) + "&field=id:integer" "&field=distance:double(20,2)&index=yes"
dist = QgsVectorLayer(uri, 'dist', 'memory')
QgsProject.instance().addMapLayer(dist)
prov = dist.dataProvider()
points_features = [
point_feature
for point_feature in self.__hidrometers.getFeatures()
]
feats = []
if len(points_features) > 0:
for p in points_features:
nearest_pipe = self.find_nearest_pipelines(p.geometry())
try:
minDistPoint = nearest_pipe.closestSegmentWithContext(
p.geometry().asPoint())[1]
feat = QgsFeature()
feat.setGeometry(
QgsGeometry.fromPolylineXY(
[p.geometry().asPoint(), minDistPoint]))
feat.setAttributes(
[points_features.index(p),
feat.geometry().length()])
feats.append(feat)
except Exception as e:
print(p.id())
prov.addFeatures(feats)
def plotar(self):
vl = QgsVectorLayer("Point", "temporary_points", "memory")
pr = vl.dataProvider()
# Enter editing mode
vl.startEditing()
# add fields
pr.addAttributes([
QgsField("estaca", QVariant.String),
QgsField("descrição", QVariant.String),
QgsField("north", QVariant.String),
QgsField("este", QVariant.String),
QgsField("cota", QVariant.String),
QgsField("azimite", QVariant.String)
])
fets = []
for r in range(self.tableWidget.rowCount()):
ident = self.tableWidget.item(r, 0).text()
if ident in ["", None]: break
fet = QgsFeature(vl.pendingFields())
n = 0.0
e = 0.0
try:
es = self.tableWidget.item(r, 0).text()
d = self.tableWidget.item(r, 1).text()
n = float(self.tableWidget.item(r, 3).text())
e = float(self.tableWidget.item(r, 4).text())
c = float(self.tableWidget.item(r, 5).text())
a = self.tableWidget.item(r, 6).text()
except:
break
fet.setGeometry(QgsGeometry.fromPoint(QgsPoint(e, n)))
fet.setAttributes([es, d, n, e, c, a])
fets.append(fet)
pr.addFeatures(fets)
vl.commitChanges()
QgsMapLayerRegistry.instance().addMapLayer(vl)
def ltefpsOKBtn(self):
currentInputCRS = self.dlg.inputCRS.text().replace(" ", "")
try:
sourceLayer = QgsMapLayerRegistry.instance().mapLayersByName(u'4G基础信息图层')[0]
except:
self.showErrorDialog(u'未找到图层', u'请检查是否已加载“4G基础信息图层”')
return
try:
inputFreq = int(self.ltefpsdlg.inputFreq.text())
inputPCI = int(self.ltefpsdlg.inputPCI.text())
except:
self.showErrorDialog(u'错误的输入', u'请输入数字')
return
# 隐藏之前的同名图层
try:
sameLayers = QgsMapLayerRegistry.instance().mapLayersByName(u'4G图层频点PCI查找')
for oneLayer in sameLayers:
qgis.utils.iface.legendInterface().setLayerVisible(oneLayer, False)
except:
pass
ltefpsLayer = QgsVectorLayer("Polygon?crs=EPSG:"+currentInputCRS, u"4G图层频点PCI查找", "memory")
ltefpsPr = ltefpsLayer.dataProvider()
ltefpsPr.addAttributes(self.createAttributesTable('4GFreqPCISearch'))
ltefpsLayer.updateFields()
qgis.utils.iface.legendInterface().setLayerVisible(sourceLayer, False)
ltefpsFet = QgsFeature()
PCI_Types = {
1: ('#FFFF00', u'频点='+str(inputFreq)+',PCI='+str(inputPCI)),
0: ('#EEEEEE', u'无关频点PCI')
}
categories = []
for pci_type, (color, label) in PCI_Types.items():
symbol = QgsSymbolV2.defaultSymbol(ltefpsLayer.geometryType())
symbol.setColor(QColor(color))
category = QgsRendererCategoryV2(pci_type, symbol, label)
categories.append(category)
# 创建属性表
fetAttrs = []
relatedAttrs = []
Longitude, Latitude, Azimuth = 11, 12, 14
for feature in sourceLayer.getFeatures():
attrs = feature.attributes()
if (inputFreq == attrs[9]) & (inputPCI == int(attrs[13])):
temp = []
for j in range(21):
temp.append(attrs[j])
temp.append(1)
relatedAttrs.append(temp)
else:
temp = []
for j in range(21):
temp.append(attrs[j])
temp.append(0)
fetAttrs.append(temp)
for one in relatedAttrs:
fetAttrs.append(one)
for fetAttr in fetAttrs:
ltefpsFet.setAttributes(fetAttr)
# 开始画图
points = [QgsPoint(fetAttr[Longitude], fetAttr[Latitude])] # start point
startAngle = -20
endAngle = 20
while startAngle <= endAngle:
points.append(
QgsPoint(fetAttr[Longitude] + 0.001 * math.sin(math.radians(fetAttr[Azimuth] + startAngle)),
fetAttr[Latitude] + 0.001 * math.cos(math.radians(fetAttr[Azimuth] + startAngle))))
startAngle += 2
points.append(QgsPoint(fetAttr[Longitude], fetAttr[Latitude])) # end point
ltefpsFet.setGeometry(QgsGeometry.fromPolygon([points]))
ltefpsPr.addFeatures([ltefpsFet])
# 根据字段值渲染颜色
expression = 'FreqPCI' # field name
renderer = QgsCategorizedSymbolRendererV2(expression, categories)
ltefpsLayer.setRendererV2(renderer)
ltefpsLayer.updateExtents()
ltefpsLayer.commitChanges()
ltefpsLayer.updateFields()
# 更新图层
QgsMapLayerRegistry.instance().addMapLayer(ltefpsLayer)
self.ltefpsdlg.close()
self.saveEPSGChange()
self.dlg.close()
def __init__(self, parent=None):
"""Constructor."""
super(Evacu8DockWidget, self).__init__(parent)
# Set up the user interface from Designer.
# After setupUI you can access any designer object by doing
# self.<objectname>, and you can use autoconnect slots - see
# http://qt-project.org/doc/qt-4.8/designer-using-a-ui-file.html
# #widgets-and-dialogs-with-auto-connect
self.setupUi(self)
#define globals
self.iface = iface
self.canvas = self.iface.mapCanvas()
self.plugin_dir = os.path.dirname(__file__)
self.emitPoint = QgsMapToolEmitPoint(self.canvas)
self.toolPoly = PolyMapTool(self.canvas)
self.emitEvac = QgsMapToolEmitPoint(self.canvas)
self.emitShel = QgsMapToolEmitPoint(self.canvas)
self.emitDel = QgsMapToolEmitPoint(self.canvas)
self.input_template = self.scen_info.toHtml()
# set up GUI operation signals
# data
self.load_scen.clicked.connect(self.openScenario)
self.tabs.setTabEnabled(1, False)
self.set_pt.clicked.connect(self.enterPoi)
self.emitPoint.canvasClicked.connect(self.getPoint)
self.set_rad.clicked.connect(self.calculateBuffer)
self.set_rad.setEnabled(False)
self.send_notes.clicked.connect(self.sendNotes)
self.set_danger.clicked.connect(self.setDangerZone)
self.get_danger.clicked.connect(self.getDangerZone)
self.del_danger.clicked.connect(self.delDangerZone)
self.emitDel.canvasClicked.connect(self.get_del)
# set images and icons
self.logo.setPixmap(QtGui.QPixmap(':images/Logosmall.jpeg'))
self.load_scen.setIcon(QtGui.QIcon(':images/Open.png'))
self.load_scen.setIconSize(QSize(25, 25))
self.set_danger.setIcon(QtGui.QIcon(':images/Draw1.svg'))
self.set_danger.setIconSize(QSize(25, 25))
self.get_danger.setIcon(QtGui.QIcon(':images/Check.png'))
self.get_danger.setIconSize(QSize(25, 25))
self.del_danger.setIcon(QtGui.QIcon(':images/Delete.png'))
self.del_danger.setIconSize(QSize(30, 30))
self.shortestRouteButton.setIcon(QtGui.QIcon(':images/Route.png'))
self.shortestRouteButton.setIconSize(QSize(25, 25))
self.to_wiki1.setIcon(QtGui.QIcon(':images/Info.png'))
self.to_wiki1.setIconSize(QSize(20, 20))
# analysis
self.evac = QgsPoint()
self.evacId = int()
self.shel = QgsPoint()
self.shelId = int()
self.evac_layer = QgsVectorLayer()
self.evac_feat = QgsFeature()
self.shel_layer = QgsVectorLayer()
self.shel_feat = QgsFeature()
self.select_POI.clicked.connect(self.enterEvac)
self.emitEvac.canvasClicked.connect(self.getEvac)
self.desel_POI.clicked.connect(self.deleteEvac)
self.select_shelter.setEnabled(False)
self.select_shelter.clicked.connect(self.enterShel)
self.emitShel.canvasClicked.connect(self.getShel)
self.shortestRouteButton.setEnabled(False)
self.shortestRouteButton.clicked.connect(self.buildNetwork)
self.shortestRouteButton.clicked.connect(self.calculateRoute)
self.network_layer = QgsVectorLayer()
self.tied_points = []
self.to_evac_info.setVerticalHeaderLabels(
["Type", "Name", "Address", "Population", "Dist from Attack(m)"])
self.shelter_info.setVerticalHeaderLabels(
["Type", "Name", "Address", "Capacity", "Route distance (m)"])
# Open wiki
self.to_wiki1.clicked.connect(self.open_wiki)
self.big_button.clicked.connect(self.evacuateThis)
self.savelog.clicked.connect(self.saveLog)
self.big_button.setEnabled(False)
self.warning_msg.setVisible(False)
self.show_selected.clicked.connect(self.showSelected)
self.hide_selected.clicked.connect(self.hideSelected)
self.save_map.pressed.connect(self.showSelected)
self.save_map.released.connect(self.saveMap)
self.savelog.clicked.connect(self.timerMessage)
self.save_map.released.connect(self.timerMessage)
self.saved_msg.setVisible(False)
self.sent_msg.setVisible(False)
class Evacu8DockWidget(QtGui.QDockWidget, FORM_CLASS):
closingPlugin = pyqtSignal()
def __init__(self, parent=None):
"""Constructor."""
super(Evacu8DockWidget, self).__init__(parent)
# Set up the user interface from Designer.
# After setupUI you can access any designer object by doing
# self.<objectname>, and you can use autoconnect slots - see
# http://qt-project.org/doc/qt-4.8/designer-using-a-ui-file.html
# #widgets-and-dialogs-with-auto-connect
self.setupUi(self)
#define globals
self.iface = iface
self.canvas = self.iface.mapCanvas()
self.plugin_dir = os.path.dirname(__file__)
self.emitPoint = QgsMapToolEmitPoint(self.canvas)
self.toolPoly = PolyMapTool(self.canvas)
self.emitEvac = QgsMapToolEmitPoint(self.canvas)
self.emitShel = QgsMapToolEmitPoint(self.canvas)
self.emitDel = QgsMapToolEmitPoint(self.canvas)
self.input_template = self.scen_info.toHtml()
# set up GUI operation signals
# data
self.load_scen.clicked.connect(self.openScenario)
self.tabs.setTabEnabled(1, False)
self.set_pt.clicked.connect(self.enterPoi)
self.emitPoint.canvasClicked.connect(self.getPoint)
self.set_rad.clicked.connect(self.calculateBuffer)
self.set_rad.setEnabled(False)
self.send_notes.clicked.connect(self.sendNotes)
self.set_danger.clicked.connect(self.setDangerZone)
self.get_danger.clicked.connect(self.getDangerZone)
self.del_danger.clicked.connect(self.delDangerZone)
self.emitDel.canvasClicked.connect(self.get_del)
# set images and icons
self.logo.setPixmap(QtGui.QPixmap(':images/Logosmall.jpeg'))
self.load_scen.setIcon(QtGui.QIcon(':images/Open.png'))
self.load_scen.setIconSize(QSize(25, 25))
self.set_danger.setIcon(QtGui.QIcon(':images/Draw1.svg'))
self.set_danger.setIconSize(QSize(25, 25))
self.get_danger.setIcon(QtGui.QIcon(':images/Check.png'))
self.get_danger.setIconSize(QSize(25, 25))
self.del_danger.setIcon(QtGui.QIcon(':images/Delete.png'))
self.del_danger.setIconSize(QSize(30, 30))
self.shortestRouteButton.setIcon(QtGui.QIcon(':images/Route.png'))
self.shortestRouteButton.setIconSize(QSize(25, 25))
self.to_wiki1.setIcon(QtGui.QIcon(':images/Info.png'))
self.to_wiki1.setIconSize(QSize(20, 20))
# analysis
self.evac = QgsPoint()
self.evacId = int()
self.shel = QgsPoint()
self.shelId = int()
self.evac_layer = QgsVectorLayer()
self.evac_feat = QgsFeature()
self.shel_layer = QgsVectorLayer()
self.shel_feat = QgsFeature()
self.select_POI.clicked.connect(self.enterEvac)
self.emitEvac.canvasClicked.connect(self.getEvac)
self.desel_POI.clicked.connect(self.deleteEvac)
self.select_shelter.setEnabled(False)
self.select_shelter.clicked.connect(self.enterShel)
self.emitShel.canvasClicked.connect(self.getShel)
self.shortestRouteButton.setEnabled(False)
self.shortestRouteButton.clicked.connect(self.buildNetwork)
self.shortestRouteButton.clicked.connect(self.calculateRoute)
self.network_layer = QgsVectorLayer()
self.tied_points = []
self.to_evac_info.setVerticalHeaderLabels(
["Type", "Name", "Address", "Population", "Dist from Attack(m)"])
self.shelter_info.setVerticalHeaderLabels(
["Type", "Name", "Address", "Capacity", "Route distance (m)"])
# Open wiki
self.to_wiki1.clicked.connect(self.open_wiki)
self.big_button.clicked.connect(self.evacuateThis)
self.savelog.clicked.connect(self.saveLog)
self.big_button.setEnabled(False)
self.warning_msg.setVisible(False)
self.show_selected.clicked.connect(self.showSelected)
self.hide_selected.clicked.connect(self.hideSelected)
self.save_map.pressed.connect(self.showSelected)
self.save_map.released.connect(self.saveMap)
self.savelog.clicked.connect(self.timerMessage)
self.save_map.released.connect(self.timerMessage)
self.saved_msg.setVisible(False)
self.sent_msg.setVisible(False)
def closeEvent(self, event):
# disconnect interface signal
self.closingPlugin.emit()
event.accept()
##Functions##
#Open Scenario
def openScenario(self, filename=""):
self.iface.addProject(
unicode(self.plugin_dir + "/data/Evacu8_dataset_new.qgs"))
self.set_rad.setEnabled(False)
self.tabs.setTabEnabled(1, False)
self.scen_info.clear()
self.scen_info.insertHtml(self.input_template)
self.buildings.clear()
self.log.clear()
# Attack Point
def enterPoi(self):
if not (QgsMapLayerRegistry.instance().mapLayersByName('Attack Point')
):
# remember currently selected tool
self.userTool = self.canvas.mapTool()
# activate coordinate capture tool
self.canvas.setMapTool(self.emitPoint)
def getPoint(self, mapPoint):
self.set_rad.setEnabled(True)
# change tool so you don't get more than one POI
self.canvas.unsetMapTool(self.emitPoint)
self.canvas.setMapTool(self.userTool)
# Get the click
if mapPoint:
self.atk_pt = QgsPoint(mapPoint)
self.distance()
# Specify the geometry type
layer = QgsVectorLayer('Point?crs=epsg:28992', 'Attack Point',
'memory')
style = "style_attack.qml"
qml_path = self.plugin_dir + "/data/" + style
layer.loadNamedStyle(qml_path)
layer.triggerRepaint()
# Set the provider to accept the data source
prov = layer.dataProvider()
# Add a new feature and assign the geometry
feat = QgsFeature()
feat.setGeometry(QgsGeometry.fromPoint(mapPoint))
prov.addFeatures([feat])
# Update extent of the layer
layer.updateExtents()
# Add the layer to the Layers panel
QgsMapLayerRegistry.instance().addMapLayers([layer])
# Add distance from point to Attack Point as attribute
def distance(self):
layers = ["POI_Evacu8"]
for layer in layers:
vl = uf.getLegendLayerByName(self.iface, layer)
uf.addFields(vl, ['distance'], [QVariant.Double])
index = vl.fieldNameIndex('distance')
feats = vl.getFeatures()
dist = QgsDistanceArea()
vl.startEditing()
for feat in feats:
geom = feat.geometry()
pt = geom.asPoint()
m = dist.measureLine(self.atk_pt, pt) // 1
vl.changeAttributeValue(feat.id(), index, m)
vl.commitChanges()
# Duplicate POI layer
def dup_layer(self, crs, names):
for name in names:
layer = uf.getLegendLayerByName(self.iface, "POI_Evacu8")
layer_type = {'0': 'Point', '1': 'LineString', '2': 'Polygon'}
mem_layer = QgsVectorLayer(
layer_type[str(layer.geometryType())] + "?crs=epsg:" +
str(crs), name, "memory")
feats = [feat for feat in layer.getFeatures()]
mem_layer_data = mem_layer.dataProvider()
attr = layer.dataProvider().fields().toList()
mem_layer_data.addAttributes(attr)
mem_layer.updateFields()
mem_layer_data.addFeatures(feats)
QgsMapLayerRegistry.instance().addMapLayer(mem_layer)
# Load style
def load_style(self, names, styles):
for name, style in zip(names, styles):
layer = uf.getLegendLayerByName(self.iface, name)
qml_path = self.plugin_dir + "/data/" + style
layer.loadNamedStyle(qml_path)
layer.triggerRepaint()
# Select and delete
def intersectANDdelete(self):
lay1 = uf.getLegendLayerByName(self.iface, "Perimeter")
lay2 = uf.getLegendLayerByName(self.iface, "Shelters")
lay3 = uf.getLegendLayerByName(self.iface, "Buildings to evacuate")
if lay1 and lay2:
to_delete = uf.getFeaturesByIntersection(lay2, lay1, True)
lay2.startEditing()
for feat in to_delete:
lay2.deleteFeature(feat.id())
lay2.commitChanges()
if lay1 and lay3:
to_delete2 = uf.getFeaturesByIntersection(lay3, lay1, False)
lay3.startEditing()
for feat in to_delete2:
lay3.deleteFeature(feat.id())
lay3.commitChanges()
# Get inserted buffer
def getBufferCutoff(self):
buffer = self.buff_area.text()
if uf.isNumeric(buffer):
return uf.convertNumeric(buffer)
else:
return 0
# Make buffer layer
def calculateBuffer(self):
layer = uf.getLegendLayerByName(self.iface, "Attack Point")
origins = layer.getFeatures()
if origins > 0:
cutoff_distance = self.getBufferCutoff()
if cutoff_distance:
if (QgsMapLayerRegistry.instance().mapLayersByName("Perimeter")
):
buffer_layer = uf.getLegendLayerByName(
self.iface, "Perimeter")
QgsMapLayerRegistry.instance().removeMapLayer(
buffer_layer.id())
buffers = {}
for point in origins:
geom = point.geometry()
buffers[point.id()] = geom.buffer(cutoff_distance,
12).asPolygon()
# store the buffer results in temporary layer called "Perimeter"
buffer_layer = uf.getLegendLayerByName(self.iface, "Perimeter")
# Create one if it doesn't exist
if not buffer_layer:
attribs = ['id', 'distance']
types = [QtCore.QVariant.String, QtCore.QVariant.Double]
buffer_layer = uf.createTempLayer(
'Perimeter', 'POLYGON',
layer.crs().postgisSrid(), attribs, types, 70)
uf.loadTempLayer(buffer_layer)
buffer_layer.setLayerName('Perimeter')
symbols = buffer_layer.rendererV2().symbols()
symbol = symbols[0]
symbol.setColor(QColor.fromRgb(220, 220, 0))
# Insert buffer polygons
geoms = []
values = []
for buffer in buffers.iteritems():
# Each buffer has an id and a geometry
geoms.append(buffer[1])
# In the case of values, it expects a list of multiple values in each item - list of lists
values.append([buffer[0], cutoff_distance])
uf.insertTempFeatures(buffer_layer, geoms, values)
self.refreshCanvas(buffer_layer)
extent = buffer_layer.extent()
self.canvas.setExtent(extent)
layers = ["road_net"]
for layer in layers:
vl = uf.getLegendLayerByName(self.iface, layer)
iface.legendInterface().setLayerVisible(vl, True)
# Make half transparent Open Street Map
rlayer = uf.getLegendLayerByName(self.iface, "OpenStreetMap")
rlayer.renderer().setOpacity(0.5) # 0.5 = 50%; 0.1 = 90%...
rlayer.triggerRepaint()
# Jump to tab 2
self.tabs.setTabEnabled(1, True)
self.tabs.setCurrentIndex(1)
self.scrollArea.verticalScrollBar().setValue(0)
# If POIs in and out already exist, remove them
check_layer = uf.getLegendLayerByName(self.iface,
"Buildings to evacuate")
check_layer2 = uf.getLegendLayerByName(self.iface, "Shelters")
if check_layer:
QgsMapLayerRegistry.instance().removeMapLayer(
check_layer.id())
QgsMapLayerRegistry.instance().removeMapLayer(
check_layer2.id())
self.buildings.clear()
if buffer_layer:
names = ["Buildings to evacuate", "Shelters"]
styles = ["style.qml", "style2.qml"]
self.dup_layer(28992, names)
self.load_style(names, styles)
self.intersectANDdelete()
build = uf.getLegendLayerByName(iface,
"Buildings to evacuate")
feats = build.getFeatures()
n = 0
for feat in feats:
if feat.attributes(
)[2] != 'police' and feat.attributes(
)[2] != 'fire_station':
n += 1
self.buildings.append('%s' % n)
# Making notes and sending to livechat
def getNotes(self):
notes = self.scen_info.toHtml()
return notes
def sendNotes(self):
input_data = self.getNotes()
if len(input_data) == 1042:
return
time = strftime("%d-%m-%Y %H:%M:%S", localtime())
new_notes = time + ": " + input_data + "\n"
old_notes = self.live_chat.toHtml()
self.live_chat.clear()
self.live_chat.insertHtml(new_notes)
self.live_chat.append("\n")
self.live_chat.insertHtml(old_notes)
self.live_chat.moveCursor(QtGui.QTextCursor.Start)
# Set danger polygon
def setDangerZone(self):
self.canvas.setMapTool(self.toolPoly)
def getDangerZone(self):
self.canvas.unsetMapTool(self.toolPoly)
def delDangerZone(self):
self.canvas.unsetMapTool(self.toolPoly)
self.canvas.setMapTool(self.emitDel)
def get_del(self, delete):
self.canvas.unsetMapTool(self.emitDel)
if delete:
layer = "Danger Zones"
min_dist = QgsDistanceArea()
vl = uf.getLegendLayerByName(self.iface, layer)
point = QgsPoint(delete)
feats = vl.getFeatures()
for feat in feats:
geom = feat.geometry()
pt = geom.centroid().asPoint()
dist = QgsDistanceArea().measureLine(point, pt)
if dist < min_dist:
min_dist = dist
fid = feat.id()
vl.startEditing()
vl.deleteFeature(fid)
vl.commitChanges()
# Picking to_evac buildings and shelters
def enterEvac(self):
self.canvas.setMapTool(self.emitEvac)
def getEvac(self, evac):
self.canvas.unsetMapTool(self.emitEvac)
self.select_POI.setEnabled(False)
self.select_shelter.setEnabled(True)
if evac:
self.evac = QgsPoint(evac)
self.evac_layer, self.evac_feat = self.select(self.evac)
self.to_evac_table()
def select(self, point):
layers = ["Buildings to evacuate", "Shelters"]
min_dist = QgsDistanceArea()
min_layer = QgsVectorLayer()
for layer in layers:
vl = uf.getLegendLayerByName(self.iface, layer)
feats = vl.getFeatures()
for feat in feats:
geom = feat.geometry()
pt = geom.asPoint()
dist = QgsDistanceArea().measureLine(point, pt)
if dist < min_dist:
min_dist = dist
min_feat = feat
min_id = feat.id()
min_layer = vl
min_layer.select(min_id)
self.canvas.setSelectionColor(QColor("red"))
self.canvas.refresh()
return min_layer, min_feat
def enterShel(self):
self.shortestRouteButton.setEnabled(False)
routes_layer = uf.getLegendLayerByName(self.iface, "Routes")
if routes_layer:
QgsMapLayerRegistry.instance().removeMapLayer(routes_layer.id())
if self.shel_layer:
self.shel_layer.deselect(self.shel_feat.id())
lineLayer = uf.getLegendLayerByName(iface, "road_net")
lineLayer.deselect(self.shelId)
self.canvas.setMapTool(self.emitShel)
def getShel(self, shel):
self.canvas.unsetMapTool(self.emitShel)
if shel:
self.shel = QgsPoint(shel)
self.shel_layer, self.shel_feat = self.select(self.shel)
self.shelter_table()
if self.evac and self.shel:
self.shortestRouteButton.setEnabled(True)
# Clear selection of to_evac and shelters
def deleteEvac(self):
routes_layer = uf.getLegendLayerByName(self.iface, "Routes")
if routes_layer:
QgsMapLayerRegistry.instance().removeMapLayer(routes_layer.id())
lineLayer = uf.getLegendLayerByName(iface, "road_net")
lineLayer.removeSelection()
layers = ["Buildings to evacuate", "Shelters"]
for layer in layers:
uf.getLegendLayerByName(self.iface, layer).removeSelection()
self.refreshCanvas(lineLayer)
item = ''
for i in range(5):
# i is the table row, items must be added as QTableWidgetItems
self.to_evac_info.setItem(i, 0,
QtGui.QTableWidgetItem(unicode(item)))
self.shelter_info.setItem(i, 0,
QtGui.QTableWidgetItem(unicode(item)))
self.select_POI.setEnabled(True)
self.select_shelter.setEnabled(False)
self.shortestRouteButton.setEnabled(False)
self.warning_msg.setVisible(False)
self.big_button.setEnabled(False)
# Route functions
def getNetwork(self):
roads_layer = uf.getLegendLayerByName(self.iface, "road_net")
if roads_layer:
# see if there is an obstacles layer to subtract roads from the network
obstacles_layer = uf.getLegendLayerByName(self.iface,
"Danger Zones")
if obstacles_layer:
# retrieve roads outside obstacles (inside = False)
features = uf.getFeaturesByIntersection(
roads_layer, obstacles_layer, False)
# add these roads to a new temporary layer
road_network = uf.createTempLayer(
'Temp_Network', 'LINESTRING',
roads_layer.crs().postgisSrid(), [], [])
road_network.dataProvider().addFeatures(features)
else:
road_network = roads_layer
return road_network
else:
return
def buildNetwork(self):
self.network_layer = self.getNetwork()
if self.network_layer:
# get the points to be used as origin and destination
# in this case gets the centroid of the selected features
selected_sources = uf.getLegendLayerByName(
self.iface, "road_net").selectedFeatures()
source_points = [self.evac, self.shel]
# build the graph including these points
if len(source_points) > 1:
self.graph, self.tied_points = uf.makeUndirectedGraph(
self.network_layer, source_points)
# the tied points are the new source_points on the graph
if self.graph and self.tied_points:
text = "network is built for %s points" % len(
self.tied_points)
return
def calculateRoute(self):
# origin and destination must be in the set of tied_points
options = len(self.tied_points)
if options > 1:
# origin and destination are given as an index in the tied_points list
origin = 0
destination = random.randint(1, options - 1)
# calculate the shortest path for the given origin and destination
path = uf.calculateRouteDijkstra(self.graph, self.tied_points,
origin, destination)
# store the route results in temporary layer called "Routes"
routes_layer = uf.getLegendLayerByName(self.iface, "Routes")
# create one if it doesn't exist
if not routes_layer:
attribs = ['id']
types = [QtCore.QVariant.String]
routes_layer = uf.createTempLayer(
'Routes', 'LINESTRING',
self.network_layer.crs().postgisSrid(), attribs, types)
style = "style_red_routes.qml"
qml_path = self.plugin_dir + "/data/" + style
routes_layer.loadNamedStyle(qml_path)
routes_layer.triggerRepaint()
uf.loadTempLayer(routes_layer)
# calculate route length
d = 0
for i in range(len(path) - 1):
pt1 = path[i]
pt2 = path[i + 1]
dx = pt2[0] - pt1[0]
dy = pt2[1] - pt1[1]
d += ((dx**2 + dy**2)**0.5) // 1
uf.insertTempFeatures(routes_layer, [path], [['testing']])
self.refreshCanvas(routes_layer)
self.shelter_info.setItem(4, 0, QtGui.QTableWidgetItem(unicode(d)))
lineLayer = uf.getLegendLayerByName(iface, "road_net")
lineLayer.deselect(self.shelId)
self.refreshCanvas(lineLayer)
self.big_button.setEnabled(True)
# Set ROUTE text color Red
self.shelter_info.item(4, 0).setTextColor(QColor(255, 0, 0))
# After adding features to layers, needs a refresh (sometimes)
def refreshCanvas(self, layer):
if self.canvas.isCachingEnabled():
layer.setCacheImage(None)
else:
self.canvas.refresh()
# Displaying POI information
def to_evac_table(self):
tent_values = self.evac_feat.attributes()
indices = [2, 3, 7, 8, 9]
values = [tent_values[i] for i in indices]
# takes a list of label / value pairs, can be tuples or lists. not dictionaries to control order
for i, item in enumerate(values):
# i is the table row, items must be added as QTableWidgetItems
self.to_evac_info.setItem(i, 0,
QtGui.QTableWidgetItem(unicode(item)))
def shelter_table(self):
tent_values = self.shel_feat.attributes()
indices = [2, 3, 7, 8]
values = [tent_values[i] for i in indices]
# takes a list of label / value pairs, can be tuples or lists. not dictionaries to control order
for i, item in enumerate(values):
# i is the table row, items must tbe added as QTableWidgetItems
self.shelter_info.setItem(i, 0,
QtGui.QTableWidgetItem(unicode(item)))
cap = values[3]
pop = int(self.to_evac_info.item(3, 0).text())
if cap - pop < 0:
self.warning_msg.setVisible(True)
else:
self.warning_msg.setVisible(False)
# Open the wiki
def open_wiki(self):
webbrowser.open(
'https://github.com/fhb1990/GEO1005_2017-18_group3/wiki/06.-Plugin-manual'
)
# Combine toEvacuate building and shelter
def evacuateThis(self):
# Write to log
time = strftime("%d-%m-%Y %H:%M:%S", localtime())
evac_type = self.to_evac_info.item(0, 0).text()
to_evac = self.to_evac_info.item(1, 0).text()
adr = self.to_evac_info.item(2, 0).text()
pop = int(self.to_evac_info.item(3, 0).text())
log_str = time + ":" + "\nBuilding selected for evacuation." \
"\nType:\t%s\nName:\t%s\nAddress:\t%s\nPredicted pop:\t%d\n" %(evac_type, to_evac, adr, pop)
self.log.append(log_str)
evac_type = self.shelter_info.item(0, 0).text()
to_evac = self.shelter_info.item(1, 0).text()
adr = self.shelter_info.item(2, 0).text()
log_str = "Evacuate to:\nType:\t%s\nName:\t%s\nAddress:\t%s\n" % (
evac_type, to_evac, adr)
self.log.append(log_str)
# Mark things as DONE
if not (uf.getLegendLayerByName(self.iface, "Done")):
done = QgsVectorLayer('Point?crs=epsg:28992', 'Done', 'memory')
QgsMapLayerRegistry.instance().addMapLayers([done])
style = "style for green marks.qml"
qml_path = self.plugin_dir + "/data/" + style
done.loadNamedStyle(qml_path)
done.triggerRepaint()
prov = uf.getLegendLayerByName(self.iface, "Done").dataProvider()
prov.addFeatures([self.evac_feat])
self.refreshCanvas(uf.getLegendLayerByName(self.iface, "Done"))
# Store Selected Routes
lay1 = uf.getLegendLayerByName(self.iface, "Selected Routes")
if not (lay1):
selected = QgsVectorLayer('LINESTRING?crs=epsg:28992',
'Selected Routes', 'memory')
QgsMapLayerRegistry.instance().addMapLayers([selected])
style = "style_blue_routes.qml"
qml_path = self.plugin_dir + "/data/" + style
selected.loadNamedStyle(qml_path)
selected.triggerRepaint()
iface.legendInterface().setLayerVisible(selected, False)
prov = uf.getLegendLayerByName(self.iface,
"Selected Routes").dataProvider()
if uf.getLegendLayerByName(self.iface, "Routes"):
route_layer = uf.getLegendLayerByName(self.iface, "Routes")
feats = route_layer.getFeatures()
for feat in feats:
prov.addFeatures([feat])
self.refreshCanvas(
uf.getLegendLayerByName(self.iface, "Selected Routes"))
uf.addFields(lay1, ['number'], [QVariant.Int])
uf.updateField(lay1, 'number', 'rand(1,100)')
# Lower capacity of shelter
layer = uf.getLegendLayerByName(self.iface, "Shelters")
layer.startEditing()
cap = int(self.shelter_info.item(3, 0).text())
m = cap - pop
if m > 0:
layer.changeAttributeValue(self.shel_feat.id(), 8, cap - pop)
else:
layer.changeAttributeValue(self.shel_feat.id(), 8, 0)
layer.commitChanges()
# Change Number of Buildings to Evacuate
build = uf.getLegendLayerByName(iface, "Buildings to evacuate")
buildings = build.getFeatures()
n = 0
for building in buildings:
if building.attributes()[2] != 'police' and building.attributes(
)[2] != 'fire_station':
n += 1
ev = uf.getLegendLayerByName(iface, "Selected Routes")
evacs = ev.getFeatures()
m = 0
for evac in evacs:
m += 1
self.buildings.clear()
if n - m > 0:
self.buildings.append('%s' % (n - m))
else:
self.buildings.append('0')
# Display confirmation message
self.sent_msg.setVisible(True)
QTimer.singleShot(3000, lambda: (self.sent_msg.setVisible(False)))
# Clear selections to start picking new targets
self.deleteEvac()
# Save the log to desktop
def saveLog(self):
log_text = self.log.toPlainText()
# path = 'C:/Users/'+os.getenv('USERNAME')+'/Desktop/Evacu8_log.txt'
path1 = os.path.join(os.path.expanduser('~'),
'Desktop') + '/Evacu8_log.txt'
print path1
with open(path1, "w") as fh:
fh.write("%s" % (log_text))
# Show all the chosen routes on the map
def showSelected(self):
selected = uf.getLegendLayerByName(self.iface, "Selected Routes")
if selected:
iface.legendInterface().setLayerVisible(selected, True)
# Hide all the chosen routes on the map
def hideSelected(self):
selected = uf.getLegendLayerByName(self.iface, "Selected Routes")
if selected:
iface.legendInterface().setLayerVisible(selected, False)
# Save the shown canvas to desktop
def saveMap(self):
#filename = 'C:/Users/' + os.getenv('USERNAME') + '/Desktop/Evacu8_log.png'
filename1 = os.path.join(os.path.expanduser('~'),
'Desktop') + '/Evacu8_log.png'
self.showSelected()
if filename1 != '':
self.canvas.saveAsImage(filename1, None, "PNG")
# Show "saved to desktop" message for 2 seconds
def timerMessage(self):
self.saved_msg.setVisible(True)
QTimer.singleShot(2000, lambda: (self.saved_msg.setVisible(False)))
def addCellFeature2(self):
if self.__dataprovider.capabilities(
) & QgsVectorDataProvider.AddFeatures:
cellfeatures = []
ncells = {}
ncell_dict = self.getNCellList()
allCells = self.cellLayer.getFeatures()
update_dict = {} # 要更新的features dict
updateGemo_dict = {} # 要更新的features gemotry dict
'''获得该小区的相邻小区数'''
count = {}
count = self.countCell(self.SCell, count)
'''获得服务小区的SiteId'''
scell = self.getCell()
scell_SiteId = (scell[u"基站ID"])
scell_point = QgsPoint(scell[u'经度'], scell[u'纬度'])
'''添加小区到相邻小区表中'''
for ncell in self.selections:
ncell_id = ncell[u'RNC-BSC'] + '_' + (ncell[u"基站ID"]) + '_' + (
ncell[u"小区ID"])
ncells[ncell_id] = str(ncell[u"基站ID"])
'''计算ncell的相邻小区个数'''
count = self.countCell(ncell_id, count)
'''若服务小区与选中的小区重叠，返回 1 '''
if ncell_id == self.SCell:
return 1
if not ncell_dict.has_key((self.SCell, ncell_id)):
'''若相邻小区表中不存在要添加的相邻小区信息，则添加'''
ncell_point = QgsPoint(ncell[u'经度'], ncell[u'纬度'])
if (scell_point is not None) and (ncell_point is not None):
d = QgsDistanceArea()
distance = d.convertMeasurement(
d.measureLine(scell_point, ncell_point), 2, 0,
False)[0]
cellfaeture = QgsFeature()
cellfaeture.initAttributes(8)
cellfaeture.setAttribute(0,
str(uuid4()).replace(
'-', '')) # 生成唯一标识id
cellfaeture.setAttribute(1, self.SCell)
cellfaeture.setAttribute(2, ncell_id)
# 把 NType 置为 2 (双向)
cellfaeture.setAttribute(3, '2')
if distance >= 0 and (distance is not None):
cellfaeture.setAttribute(7, distance)
cellfaeture.setGeometry(
QgsGeometry.fromPolyline(
[scell_point, ncell_point]))
cellfeatures.append(cellfaeture)
if count.has_key(self.SCell):
count[self.SCell] = count[self.SCell] + 1
else:
count[self.SCell] = 1
else:
# 若已存在则更新信息
update_data_id = ncell_dict[(self.SCell, ncell_id)]
update_data_value = {} # 需要更新的 features 的值得dict
# 计算距离
ncell_point = QgsPoint(ncell[u'经度'], ncell[u'纬度'])
if (scell_point is not None) and (ncell_point is not None):
d = QgsDistanceArea()
distance = d.convertMeasurement(
d.measureLine(scell_point, ncell_point), 2, 0,
False)[0]
update_data_value[self.scellLayer.fieldNameIndex(
'Distance')] = distance
# NType 设为 2（双向）
update_data_value[self.scellLayer.fieldNameIndex(
'NType')] = 2
update_dict[update_data_id] = update_data_value
updateGemo_dict[update_data_id] = QgsGeometry.fromPolyline(
[scell_point, ncell_point])
'''判断原先是否存在对称相邻小区'''
if not ncell_dict.has_key((ncell_id, self.SCell)):
# 如果不存在则添加对称相邻小区信息
ncell_point = QgsPoint(ncell[u'经度'], ncell[u'纬度'])
if (scell_point is not None) and (ncell_point is not None):
d = QgsDistanceArea()
distance = d.convertMeasurement(
d.measureLine(ncell_point, scell_point), 2, 0,
False)[0]
cellfaeture = QgsFeature()
cellfaeture.initAttributes(8)
cellfaeture.setAttribute(0,
str(uuid4()).replace(
'-', '')) # 生成唯一标识id
cellfaeture.setAttribute(1, ncell_id)
cellfaeture.setAttribute(2, self.SCell)
# NType 置为 2 （双向）
cellfaeture.setAttribute(3, '2')
if distance >= 0 and (distance is not None):
cellfaeture.setAttribute(7, distance)
cellfaeture.setGeometry(
QgsGeometry.fromPolyline(
[ncell_point, scell_point]))
cellfeatures.append(cellfaeture)
'''再次计算服务小区的相邻小区数'''
if count.has_key(ncell_id):
count[ncell_id] = count[ncell_id] + 1
else:
count[ncell_id] = 1
else:
# 若已存在则对称小区的更新信息
# 把要更新的对称小区的 NType 信息加入到 update_dict 中
update_data_id = ncell_dict[(ncell_id, self.SCell)]
update_data_value = {} # 需要更新的 features 的值得dict
# 计算距离
ncell_point = QgsPoint(ncell[u'经度'], ncell[u'纬度'])
if (scell_point is not None) and (ncell_point is not None):
d = QgsDistanceArea()
distance = d.convertMeasurement(
d.measureLine(scell_point, ncell_point), 2, 0,
False)[0]
update_data_value[self.scellLayer.fieldNameIndex(
'Distance')] = distance
# NType 设为 2 （双向）
update_data_value[self.scellLayer.fieldNameIndex(
'NType')] = 2
update_dict[update_data_id] = update_data_value
'''若服务小区的相邻小区数大于31则不添加，并返回 2 '''
if count[self.SCell] > 31:
return 2
if count[ncell_id] > 31:
return 3
'''添加'''
self.__dataprovider.addFeatures(cellfeatures)
# 更新相邻小区表内数据
if len(update_dict) > 0:
modifyFeatures(self.scellLayer, update_dict)
if len(updateGemo_dict) > 0:
modifyFeaturesGeom(self.scellLayer, updateGemo_dict)
return 0
def saveCurva(self):
self.layer: QgsVectorLayer
self.comboCurva: QtWidgets.QComboBox
self.draw()
if self.curvaFailed:
return
curvaFeats = featuresList(self.c.layer)
features = []
if hasattr(self, "justStarted") and self.justStarted:
i = 0
for f, tipo in zip(curvaFeats, self.c.dados):
feat = QgsFeature(self.layer.fields())
feat.setGeometry(f.geometry())
feat.setAttributes([i, str(tipo[0]), "Traçado"])
features.append(feat)
i += 1
self.justStarted = False
elif len(curvaFeats) > 0:
fid = 1
nomes = []
#Delete all features of self.layer and add layer geometry in between
for i, feat in enumerate(self.layer.getFeatures()):
if i > self.current_index and i < self.next_index:
continue
f = QgsFeature(self.layer.fields())
attr = feat.attributes()
attr[0] = len(features) + 1
f.setAttributes(attr)
if i == self.current_index:
PI = p2QgsPoint(featureToPolyline(curvaFeats[0])[0])
f.setGeometry(
QgsGeometry.fromPolyline(
[p2QgsPoint(featureToPolyline(feat)[0]), PI]))
features.append(f)
for i, cf in enumerate(curvaFeats):
f = QgsFeature(self.layer.fields())
attr = cf.attributes()
attr = [len(features) + 1] + attr
f.setAttributes(attr)
f.setGeometry(cf.geometry())
features.append(f)
if i == 0: nomes.append(str(attr[1]))
nomes.append(str(attr[1]))
elif i == self.next_index:
PF = p2QgsPoint(featureToPolyline(curvaFeats[-1])[-1])
f.setGeometry(
QgsGeometry.fromPolyline(
[PF, p2QgsPoint(featureToPolyline(feat)[-1])]))
features.append(f)
else:
f.setGeometry(feat.geometry())
features.append(f)
self.layer.dataProvider().deleteFeatures(
[f.id() for f in self.layer.getFeatures()])
self.layer.dataProvider().addFeatures(features)
self.layer.updateExtents()
try:
QgsProject.instance().removeMapLayer(self.c.layer.id())
except:
pass
refreshCanvas(self.iface, self.layer)
def apagar(self):
if self.curva_id:
self.model.delete_curva(self.curva_id, self.dados)
self.update()
features = []
PI = 0
for i, feat in enumerate(self.layer.getFeatures()):
if i > self.current_index and i < self.next_index:
continue
f = QgsFeature(self.layer.fields())
attr = feat.attributes()
attr[0] = len(features) + 1
f.setAttributes(attr)
if i == self.current_index:
l1 = featureToPolyline(feat)
l2 = featureToPolyline(
self.layer.getFeature(self.next_index + 1))
PI = seg_intersect(l1[0], l1[-1], l2[0], l2[-1])
f.setGeometry(
QgsGeometry.fromPolyline(
[p2QgsPoint(featureToPolyline(feat)[0]), PI]))
features.append(f)
elif i == self.next_index:
PF = PI
f.setGeometry(
QgsGeometry.fromPolyline(
[PF, p2QgsPoint(featureToPolyline(feat)[-1])]))
features.append(f)
else:
f.setGeometry(feat.geometry())
features.append(f)
self.layer.dataProvider().deleteFeatures(
[f.id() for f in self.layer.getFeatures()])
self.layer.dataProvider().addFeatures(features)
self.layer.updateExtents()
self.curva_id = False
try:
QgsProject.instance().removeMapLayer(self.c.layer.id())
except:
pass
refreshCanvas(self.iface, self.layer)
def init_state(self):
dirname = os.path.dirname(__file__)
layer = QgsProject.instance().mapLayersByName('copy_energy_plant')[0]
if layer.featureCount() < NUMB_ENERGY_PLANT:
filename = os.path.join(dirname,
'dataset/global_power_plant_database.csv')
layer.startEditing()
with open(filename, 'r') as file:
reader = csv.reader(file)
for i, row in enumerate(reader):
if i > 0 and row[7] == "Nuclear":
pr = layer.dataProvider()
# insert in attribute table
poly = QgsFeature(layer.fields())
poly.setAttribute("Country", row[0])
poly.setAttribute("count_long", row[1])
poly.setAttribute("name", row[2])
poly.setAttribute("qppd_idnr", row[3])
poly.setAttribute("cap_mw", row[4])
poly.setAttribute("latitude", row[5])
poly.setAttribute("longitude", row[6])
poly.setAttribute("Radiation", random.randint(1, 200))
poly.setGeometry(
QgsGeometry.fromPointXY(
QgsPointXY(float(row[6]), float(row[5]))))
pr.addFeatures([poly])
layer.updateExtents()
layer.commitChanges()
layer.reload()
def create_point(self, geometry):
# add point to the layer
self.seg = QgsFeature()
self.seg.setGeometry(QgsGeometry.fromPoint(geometry))
self.pr.addFeatures([self.seg])
self.layer.updateExtents()
def addPoint(self, ref, attrs):
refLen = len(ref)
if refLen > 3:
code = ref[0:2].upper()
#print code
e = self.east[code]
n = self.north[code]
#print "East: ", e, " North: ", n
# Should now have the northings and eastings values... now need to add some more precision
metres = ref[2:]
l = len(metres)
# print l
if l & 0x1: # bad news, shouldn't have an odd number of digits... bomb out!
self.badGridError()
return 1
else:
# Good news so far... even number of digits... split 'em in half and pad with zeroes
l /= 2
eMetres = metres[0:l]
while len(eMetres) < 5:
eMetres = eMetres + "0"
nMetres = metres[l:]
while len(nMetres) < 5:
nMetres = nMetres + "0"
# Add the metres onto the eastings and northings
e += eMetres
n += nMetres
# print e
# print n
# Great... now have out coordinates in QGIS acceptable format... add a new point
# Get active layer
layer = qgis.utils.iface.activeLayer()
caps = layer.dataProvider().capabilities()
if caps:
# Declare a feature
feat = QgsFeature()
# Add attributes
if len(attrs) > 0: # Just use comma delimited attList
attList = attrs.split(",")
# print attList
feat.setAttributes(attList)
# Add the points
feat.setGeometry(QgsGeometry.fromPoint(QgsPoint(int(e), int(n))))
res, outFeats = layer.dataProvider().addFeatures([feat])
if not res:
qgis.utils.iface.messageBar().pushMessage("Error", "An error occurred adding points", level=QgsMessageBar.CRITICAL)
self.stayOpen = False
return 1
# Must update the UI for user to enjoy the new points
layer.triggerRepaint()
else:
self.badGridError()
else:
self.badGridError()
return 1
# Must be OK
return 0
def painting(self, data, fileType):
currentInputCRS = self.dlg.inputCRS.text().replace(" ", "")
table = data.sheets()[0]
nrows = table.nrows
if fileType == '4G':
vl = QgsVectorLayer("Polygon?crs=EPSG:"+currentInputCRS, u"4G基础信息图层", "memory")
vlLabel = QgsVectorLayer("Polygon?crs=EPSG:"+currentInputCRS, u"4G基础信息标签层", "memory")
elif fileType == '3G':
vl = QgsVectorLayer("Polygon?crs=EPSG:"+currentInputCRS, u"3G基础信息图层", "memory")
vlLabel = QgsVectorLayer("Polygon?crs=EPSG:"+currentInputCRS, u"3G基础信息标签层", "memory")
elif fileType == '2G':
vl = QgsVectorLayer("Polygon?crs=EPSG:"+currentInputCRS, u"2G基础信息图层", "memory")
vlLabel = QgsVectorLayer("Polygon?crs=EPSG:"+currentInputCRS, u"2G基础信息标签层", "memory")
pr = vl.dataProvider()
vlLabelPr = vlLabel.dataProvider()
attrs = self.createAttributesTable(fileType)
pr.addAttributes(attrs)
vlLabelPr.addAttributes(attrs)
vl.updateFields()
vlLabel.updateFields()
fet = QgsFeature()
self.dlg.progressBar.setVisible(True)
'''开始读取到内存'''
list = [[] for row in range(nrows-1)]
for i in range(nrows):
if i > 0:
try:
if fileType == '4G':
for j in range(21):
list[i - 1].append(table.cell(i, j).value)
if j == 20:
list[i - 1].append(table.cell(i, 13).value % 3)
if fileType == '3G':
for j in range(73):
list[i - 1].append(table.cell(i, j).value)
if j == 72:
list[i - 1].append(int(table.cell(i, 5).value) % 3)
if fileType =='2G':
for j in range(67):
list[i - 1].append(table.cell(i, j).value)
if j == 66:
list[i - 1].append(int(table.cell(i, 2).value) % 3)
except:
self.showErrorDialog(u'文档读取出错', u'文档可能存在错误或格式不符合规范')
self.dlg.progressBar.setVisible(False)
return
'''完成读取到内存'''
PCI_Types = {
'0': ('#F49ECC', 'Mod3=0'),
'1': ('#65F0FF', 'Mod3=1'),
'2': ('#00FF00', 'Mod3=2'),
'3': ('#000', u'未知值'),
}
categories = []
for pci_type, (color, label) in PCI_Types.items():
symbol = QgsSymbolV2.defaultSymbol(vl.geometryType())
# symbol = QgsFillSymbolV2.createSimple({'color': color, 'color_border': color, 'width_border': '2'})
symbol.setColor(QColor(color))
# symbol.symbolLayer(0).setOutlineColor(QColor('#75263b'))
category = QgsRendererCategoryV2(pci_type, symbol, label)
categories.append(category)
for i in range(len(list)):
fetAttrs =[]
if fileType == '4G':
for j in range(22):
fetAttrs.append(list[i][j])
elif fileType == '3G':
for j in range(74):
fetAttrs.append(list[i][j])
elif fileType == '2G':
for j in range(68):
fetAttrs.append(list[i][j])
fet.setAttributes(fetAttrs)
if fileType == '4G':
Longitude = 11
Latitude = 12
Azimuth = list[i][14]
elif fileType == '3G':
Longitude = 12
Latitude = 13
Azimuth = list[i][15]
elif fileType == '2G':
Longitude = 15
Latitude = 16
Azimuth = list[i][5]
points = [QgsPoint(list[i][Longitude], list[i][Latitude])] # start point
startAngle = -20
endAngle = 20
while startAngle <= endAngle:
# midway points
points.append(QgsPoint(list[i][Longitude] + 0.001 * math.sin(math.radians(Azimuth + startAngle)),
list[i][Latitude] + 0.001 * math.cos(math.radians(Azimuth + startAngle))))
startAngle += 2
points.append(QgsPoint(list[i][Longitude], list[i][Latitude])) # end point
# create the renderer and assign it to a layer
expression = 'Mod3' # field name
renderer = QgsCategorizedSymbolRendererV2(expression, categories)
vl.setRendererV2(renderer)
fet.setGeometry(QgsGeometry.fromPolygon([points]))
pr.addFeatures([fet])
# fet.setGeometry(QgsGeometry.fromPoint(QgsPoint(Longitude, Latitude)))
vlLabelPr.addFeatures([fet])
vlLabel.setLayerTransparency(100)
vl.updateExtents()
vlLabel.updateExtents()
vl.commitChanges()
vlLabel.commitChanges()
vl.updateFields()
vlLabel.updateFields()
if i % 200 == 0:
print 'progress:', float(pr.featureCount()) / nrows * 100
self.dlg.progressBar.setValue(float(pr.featureCount()) / nrows * 100.0)
palyr = QgsPalLayerSettings()
# palyr.readFromLayer(vl)
palyr.enabled = True
palyr.fieldName = 'CellName'
if fileType =='2G':
palyr.fieldName = 'CELL_NAME'
palyr.placement = QgsPalLayerSettings.OverPoint
# palyr.setDataDefinedProperty(QgsPalLayerSettings.Size,False,False,'','')
palyr.writeToLayer(vlLabel)
QgsMapLayerRegistry.instance().addMapLayer(vl)
QgsMapLayerRegistry.instance().addMapLayer(vlLabel)
print 'progress:', 100
self.dlg.progressBar.setValue(0)
self.dlg.progressBar.setVisible(False)
self.iface.messageBar().clearWidgets()
qgis.utils.iface.setActiveLayer(vl)
self.saveEPSGChange()
self.dlg.close()
def addCellFeature1(self):
if self.__dataprovider.capabilities(
) & QgsVectorDataProvider.AddFeatures:
cellfeatures = []
ncells = {}
ncell_dict = self.getNCellList()
allCells = self.cellLayer.getFeatures()
update_dict = {} # 要更新的features dict
updateGemo_dict = {} # 要更新的features gemotry dict
'''获得该小区的相邻小区数'''
count = {}
count = self.countCell(self.SCell, count)
'''获得服务小区的基站ID'''
scell = self.getCell()
scell_SiteId = (scell[u'基站ID'])
scell_point = QgsPoint(scell[u"经度"], scell[u"纬度"])
'''添加小区到相邻小区表中'''
for ncell in self.selections:
ncell_id = ncell[u'RNC-BSC'] + '_' + (ncell[u'基站ID']) + '_' + (
ncell[u'小区ID'])
ncells[ncell_id] = str(ncell[u'基站ID'])
'''若服务小区与选中的小区重叠，返回 1 '''
if ncell_id == self.SCell:
return 1
'''检查相邻小区表中是否已存在要添加的相邻小区信息，若否则添加'''
if not ncell_dict.has_key((self.SCell, ncell_id)):
ncell_point = QgsPoint(ncell[u"经度"], ncell[u"纬度"])
if (scell_point is not None) and (ncell_point is not None):
d = QgsDistanceArea()
distance = d.convertMeasurement(
d.measureLine(scell_point, ncell_point), 2, 0,
False)[0]
cellfaeture = QgsFeature()
cellfaeture.initAttributes(8)
cellfaeture.setAttribute(0,
str(uuid4()).replace(
'-', '')) # 生成唯一标识id
cellfaeture.setAttribute(1, self.SCell)
cellfaeture.setAttribute(2, ncell_id)
# 判断是否存在对称相邻小区
if ncell_dict.has_key((ncell_id, self.SCell)):
# 如果存在对称小区，则新添加的小区为双向邻区
cellfaeture.setAttribute(3, '2')
# 把要更新的对称小区的 NType 信息加入到 update_dict 中
update_data_id = ncell_dict[(ncell_id, self.SCell)]
update_data_value = {
self.scellLayer.fieldNameIndex('NType'): 2
}
update_dict[update_data_id] = update_data_value
else:
# 如是单向相邻小区 NType 置为 1
cellfaeture.setAttribute(3, '1')
if distance >= 0 and (distance is not None):
cellfaeture.setAttribute(7, distance)
cellfaeture.setGeometry(
QgsGeometry.fromPolyline(
[scell_point, ncell_point]))
cellfeatures.append(cellfaeture)
'''再次计算服务小区的相邻小区数'''
if count.has_key(self.SCell):
count[self.SCell] = count[self.SCell] + 1
else:
count[self.SCell] = 1
else:
# 若已存在则更新信息
update_data_id = ncell_dict[(self.SCell, ncell_id)]
update_data_value = {} # 需要更新的 features 的值得dict
# 计算距离
ncell_point = QgsPoint(ncell[u"经度"], ncell[u"纬度"])
if (scell_point is not None) and (ncell_point is not None):
d = QgsDistanceArea()
distance = d.convertMeasurement(
d.measureLine(scell_point, ncell_point), 2, 0,
False)[0]
update_data_value[self.scellLayer.fieldNameIndex(
'Distance')] = distance
# 判断是否存在对称相邻小区
if ncell_dict.has_key((ncell_id, self.SCell)):
# 若存在对称小区则 NType 设为 2
update_data_value[self.scellLayer.fieldNameIndex(
'NType')] = 2
else:
# 反之，NType 设为 1
update_data_value[self.scellLayer.fieldNameIndex(
'NType')] = 1
update_dict[update_data_id] = update_data_value
updateGemo_dict[update_data_id] = QgsGeometry.fromPolyline(
[scell_point, ncell_point])
'''若服务小区的相邻小区数大于31则不添加，并返回 2 '''
if count[self.SCell] > 31:
return 2
'''添加'''
self.__dataprovider.addFeatures(cellfeatures)
# 更新相邻小区表内数据
if len(update_dict) > 0:
modifyFeatures(self.scellLayer, update_dict)
if len(updateGemo_dict) > 0:
modifyFeaturesGeom(self.scellLayer, updateGemo_dict)
return 0
else:
# 图层不能够添加新的Feature，提示错误消息给用户
self.iface.messageBar().pushMessage(u'错误', u'添加相邻小区失败',
QgsMessageBar.CRITICAL, 3)
def gsmfsOKBtn(self):
currentInputCRS = self.dlg.inputCRS.text().replace(" ", "")
inputFreq = self.gsmfsdlg.inputFreq.text()
try:
sourceLayer = QgsMapLayerRegistry.instance().mapLayersByName(u'2G基础信息图层')[0]
except:
self.showErrorDialog(u'未找到图层', u'请检查是否已加载“2G基础信息图层”')
return
# 隐藏之前的同名图层
try:
sameLayer = QgsMapLayerRegistry.instance().mapLayersByName(u'2G图层频点查找')
for oneLayer in sameLayer:
qgis.utils.iface.legendInterface().setLayerVisible(oneLayer, False)
except:
pass
gsmfsLayer = QgsVectorLayer("Polygon?crs=EPSG:"+currentInputCRS, u"2G图层频点查找", "memory")
gsmfsPr = gsmfsLayer.dataProvider()
gsmfsPr.addAttributes(self.createAttributesTable('2GFreqSearch'))
gsmfsLayer.updateFields()
# QgsMapLayerRegistry.instance().addMapLayer(gsmfsLayer)
qgis.utils.iface.legendInterface().setLayerVisible(sourceLayer, False)
gsmfsFet = QgsFeature()
try:
inputFreq.replace(" ", "")
B = int(inputFreq)
except:
self.showErrorDialog(u'错误的输入', u'请输入数字')
return
A = B - 1
C = B + 1
PCI_Types = {
A: ('#FF63F2', u'频点='+ str(A)),
B: ('#FFFF00', u'指定频点='+ str(B)),
C: ('#01FF8D', u'频点='+ str(C)),
'-1': ('#eeeeee', u'无关频点')
}
categories = []
for pci_type, (color, label) in PCI_Types.items():
symbol = QgsSymbolV2.defaultSymbol(gsmfsLayer.geometryType())
symbol.setColor(QColor(color))
category = QgsRendererCategoryV2(pci_type, symbol, label)
categories.append(category)
# 创建属性表
fetAttrs = []
relatedAttrs = []
Longitude, Latitude, Azimuth = 15, 16, 5
for feature in sourceLayer.getFeatures():
attrs = feature.attributes()
if (int(inputFreq) == attrs[3]):
temp = []
for j in range(67):
temp.append(attrs[j])
temp.append(B)
relatedAttrs.append(temp)
elif int(inputFreq) == int(attrs[3]) - 1:
temp = []
for j in range(67):
temp.append(attrs[j])
temp.append(A)
relatedAttrs.append(temp)
elif int(inputFreq) == int(attrs[3]) + 1:
temp = []
for j in range(67):
temp.append(attrs[j])
temp.append(C)
relatedAttrs.append(temp)
else:
temp = []
for j in range(67):
temp.append(attrs[j])
if j == 66:
if (int(inputFreq) != attrs[3]) & (int(inputFreq) != int(attrs[3])-1) & (int(inputFreq) != int(attrs[3])+1):
temp.append('-1')
fetAttrs.append(temp)
for one in relatedAttrs:
fetAttrs.append(one)
for fetAttr in fetAttrs:
gsmfsFet.setAttributes(fetAttr)
#开始画图
points = [QgsPoint(fetAttr[Longitude], fetAttr[Latitude])] # start point
startAngle = -20
endAngle = 20
while startAngle <= endAngle:
points.append(QgsPoint(fetAttr[Longitude] + 0.001 * math.sin(math.radians(fetAttr[Azimuth] + startAngle)),
fetAttr[Latitude] + 0.001 * math.cos(math.radians(fetAttr[Azimuth] + startAngle))))
startAngle += 2
points.append(QgsPoint(fetAttr[Longitude], fetAttr[Latitude])) # end point
gsmfsFet.setGeometry(QgsGeometry.fromPolygon([points]))
gsmfsPr.addFeatures([gsmfsFet])
#根据字段值渲染颜色
expression = 'Condition' # field name
renderer = QgsCategorizedSymbolRendererV2(expression, categories)
gsmfsLayer.setRendererV2(renderer)
gsmfsLayer.updateExtents()
gsmfsLayer.commitChanges()
gsmfsLayer.updateFields()
QgsMapLayerRegistry.instance().addMapLayer(gsmfsLayer)
self.gsmfsdlg.close()
self.saveEPSGChange()
self.dlg.close()
def addPlaceMark(self, pos, name, description, category, timestamp):
''' adds a point to the layer
:param pos: lat/lon position of the placemark
:type pos: QgsPoint
:param name: name of the placemark
:type name: string
:param description: extended text for the placemark
:type description: string
:param category: category to define the
:type category: string
:param timestamp: creation time of the placemark
:type timestamp: string
'''
if self.hasLayer:
feat = QgsFeature(self.layer.pendingFields())
feat.setAttribute('name', name)
feat.setAttribute('description', description)
feat.setAttribute('class', category)
feat.setAttribute('timestamp', timestamp)
feat.setGeometry(QgsGeometry.fromPoint(pos))
(res, _) = self.layer.dataProvider().addFeatures([feat])
if res:
self.layer.updateExtents()
return res
return False
