def setRoot(self, root):
model = QgsLayerTreeModel(root, self)
model.setFlag(QgsLayerTreeModel.AllowNodeChangeVisibility)
model.setFlag(QgsLayerTreeModel.ShowLegendAsTree)
font = QFont()
font.setPointSize(20)
model.setLayerTreeNodeFont(QgsLayerTreeNode.NodeLayer, font)
model.setLayerTreeNodeFont(QgsLayerTreeNode.NodeGroup, font)
self.layerTree.setModel(model)
class Window(QMainWindow, Ui_MainWindow):
def __init__(self):
super(Window, self).__init__()
self.setupUi(self)
self.layers = []
# ---------初始化图层和画布----------
self.vl = QVBoxLayout(self.dockWidgetContents)
self.layer_tree_view = QgsLayerTreeView(self)
self.vl.addWidget(self.layer_tree_view)
self.hl = QHBoxLayout(self.frame)
self.mapCanvas = QgsMapCanvas(self.frame)
self.hl.addWidget(self.mapCanvas)
# ---------初始化图层和画布----------
self.action_open.triggered.connect(self.action_open_triggered)
# 建立桥梁
self.model = QgsLayerTreeModel(QgsProject.instance().layerTreeRoot(), self)
self.model.setFlag(QgsLayerTreeModel.AllowNodeRename)
self.model.setFlag(QgsLayerTreeModel.AllowNodeReorder)
self.model.setFlag(QgsLayerTreeModel.AllowNodeChangeVisibility)
self.model.setFlag(QgsLayerTreeModel.ShowLegendAsTree)
self.model.setAutoCollapseLegendNodes(10)
self.layer_tree_view.setModel(self.model)
self.layer_tree_bridge = QgsLayerTreeMapCanvasBridge(QgsProject.instance().layerTreeRoot(), self.mapCanvas)
# 设置识别工具
self.identifyTool = QgsMapToolIdentifyFeature(self.mapCanvas)
# 发送识别的要素
self.identifyTool.featureIdentified.connect(self.print_features)
self.mapCanvas.setMapTool(self.identifyTool)
def action_open_triggered(self):
data_file, ext = QFileDialog.getOpenFileName(self, '打开', '', '所有文件(*)')
if data_file:
if data_file.endswith('.shp'):
basename = os.path.splitext(os.path.basename(data_file))[0]
layer = QgsVectorLayer(data_file, basename, "ogr")
QgsProject.instance().addMapLayer(layer)
self.layers.append(layer)
self.mapCanvas.setExtent(layer.extent())
self.mapCanvas.setLayers(self.layers)
self.mapCanvas.refresh()
self.layer_tree_view.setCurrentLayer(layer)
# 设置需要识别的图层
self.identifyTool.setLayer(layer)
elif data_file.endswith('.qgz') or data_file.endswith('.qgs'):
QgsProject.instance().read(data_file)
else:
print('error')
def print_features(self, feature):
print(feature.attributes())
print(feature.fields())
print(feature.geometry())
def setRoot(self, root):
model = QgsLayerTreeModel(root, self)
model.setFlag(QgsLayerTreeModel.AllowNodeChangeVisibility)
model.setFlag(QgsLayerTreeModel.ShowLegendAsTree)
font = QFont()
font.setPointSize(20)
model.setLayerTreeNodeFont(QgsLayerTreeNode.NodeLayer, font)
model.setLayerTreeNodeFont(QgsLayerTreeNode.NodeGroup, font)
self.layerTree.setModel(model)
for layer_node in model.rootGroup().findLayers():
layer = layer_node.layer()
if layer.type() == QgsMapLayer.VectorLayer:
if layer.geometryType() == QgsWkbTypes.NullGeometry:
parent = layer_node.parent()
parent.removeLayer(layer)
def init_layerTree(self):
self.layer_tree_view = QgsLayerTreeView(self)
layout = QVBoxLayout(self.layerTreeWidget)
layout.setContentsMargins(0, 0, 0, 0)
layout.addWidget(self.layer_tree_view)
model = QgsLayerTreeModel(QgsProject.instance().layerTreeRoot(), self)
model.setFlag(QgsLayerTreeModel.AllowNodeRename)
model.setFlag(QgsLayerTreeModel.AllowNodeReorder)
model.setFlag(QgsLayerTreeModel.AllowNodeChangeVisibility)
model.setFlag(QgsLayerTreeModel.ShowLegendAsTree)
model.setAutoCollapseLegendNodes(10)
self.layer_tree_view.setModel(model)
provider = MenuProvider(self.layer_tree_view, self.mapCanvas,
self.project.instance())
self.layer_tree_view.setMenuProvider(provider)
# 注意self.layer_tree_bridge必须有
self.layer_tree_bridge = QgsLayerTreeMapCanvasBridge(
self.project.instance().layerTreeRoot(), self.mapCanvas)
class AuxiliaryLegend(QDockWidget):
currentLayerChanged = pyqtSignal("QgsMapLayer")
currentLayerQgis = pyqtSignal("QgsMapLayer")
syncGroupLayer = pyqtSignal()
addSelectedLayersQgis = pyqtSignal()
removeLayer = pyqtSignal("QgsMapLayer")
needSelectLayer = pyqtSignal()
closed = pyqtSignal()
def __init__(self, parent, numWin):
def setTreeView():
def setModel():
self.model = QgsLayerTreeModel(ltg)
self.model.setFlag(QgsLayerTreeModel.AllowNodeReorder)
self.model.setFlag(QgsLayerTreeModel.AllowNodeChangeVisibility,
True)
self.tview.setModel(self.model)
self.tview = QgsLayerTreeView(self)
self.tview.setSelectionMode(QAbstractItemView.ExtendedSelection)
setModel()
self.tview.currentLayerChanged.connect(
self.currentLayerChanged.emit)
def setupUi():
self.setAllowedAreas(Qt.LeftDockWidgetArea)
winLegend.setWindowFlags(Qt.Widget)
toolBar.setFloatable(False)
toolBar.setMovable(False)
winLegend.addToolBar(toolBar)
self.setWidget(winLegend)
def addActions():
actn = QAction(winLegend)
actn.setIcon(qgis.utils.iface.actionShowSelectedLayers().icon())
actn.setIconText('Show selected layers')
actn.setObjectName('showLayer')
actn.triggered.connect(self.onAction)
toolBar.addAction(actn)
actn = QAction(winLegend)
actn.setIcon(qgis.utils.iface.actionHideSelectedLayers().icon())
actn.setIconText('Hide selected layers')
actn.setObjectName('hideLayer')
actn.triggered.connect(self.onAction)
toolBar.addAction(actn)
actn = QAction(winLegend)
actn.setIcon(qgis.utils.iface.actionRemoveLayer().icon())
actn.setIconText('Remove selected layers')
actn.setObjectName('removeLayer')
actn.triggered.connect(self.onAction)
toolBar.addAction(actn)
toolBar.addSeparator()
actn = QAction(winLegend)
actn.setIcon(qgis.utils.iface.actionDuplicateLayer().icon())
actn.setIconText('Add selected layers from main map')
actn.setObjectName('addLayer')
actn.triggered.connect(self.onAction)
toolBar.addAction(actn)
actn = QAction(winLegend)
actn.setIcon(
QIcon(
os.path.join(os.path.dirname(__file__),
'mActionCurrentLayer.png')))
actn.setIconText('Current layer for main map')
actn.setObjectName('currentLayer')
actn.triggered.connect(self.onAction)
toolBar.addAction(actn)
actn = QAction(winLegend)
actn.setIcon(
QIcon(
os.path.join(os.path.dirname(__file__),
'mActionAddGroup.png')))
actn.setObjectName('syncGroup')
actn.triggered.connect(self.onAction)
toolBar.addAction(actn)
super(AuxiliaryLegend, self).__init__("#%d - Layers" % numWin, parent)
ltg = parent.ltg
self.tview = self.model = self.bridge = None
self.textSync = "Sync with group(main map) for new layers"
self.actSync = None
setTreeView()
winLegend = QMainWindow(self)
toolBar = QToolBar(winLegend)
setupUi()
addActions()
self.addNameSyncGroup("None")
winLegend.setCentralWidget(self.tview)
def addNameSyncGroup(self, name):
act = self.findChild(QAction, 'syncGroup')
text = "%s -> %s" % (self.textSync, name)
act.setIconText(text)
def setBridge(self, canvas):
ltg = self.model.rootGroup()
self.bridge = QgsLayerTreeMapCanvasBridge(
ltg, canvas) # Need wait populate ltg
def clearBridge(self):
if not self.bridge is None:
self.bridge.clear()
def closeEvent(self, event):
event.accept()
self.closed.emit()
@pyqtSlot()
def onAction(self):
nameSender = self.sender().objectName()
if nameSender in ('showLayer', 'hideLayer', 'removeLayer'):
nodes = self.tview.selectedLayerNodes()
if len(nodes) == 0:
self.needSelectLayer.emit()
return
if nameSender in ('showLayer', 'hideLayer'):
checked = Qt.Checked if nameSender == 'showLayer' else Qt.Unchecked
map(lambda item: item.setVisible(checked), nodes)
else:
ltg = self.model.rootGroup()
for node in nodes:
self.removeLayer.emit(node.layer())
ltg.removeChildNode(node)
# addLayer, currentLayer
else:
if nameSender == 'addLayer':
self.addSelectedLayersQgis.emit()
elif nameSender == 'currentLayer':
self.currentLayerQgis.emit(self.tview.currentLayer())
else:
self.syncGroupLayer.emit()
class MainWindow(QMainWindow, Ui_MainWindow):
def __init__(self):
super(MainWindow, self).__init__()
self.setupUi(self)
self.first_flag = True
self.setWindowTitle('PyQGIS')
# 调整窗口大小
self.resize(800, 600)
# 初始化图层树
vl = QVBoxLayout(self.dockWidgetContents)
self.layerTreeView = QgsLayerTreeView(self)
vl.addWidget(self.layerTreeView)
# 初始化地图画布
self.mapCanvas = QgsMapCanvas(self)
hl = QHBoxLayout(self.frame)
hl.setContentsMargins(0, 0, 0, 0)
hl.addWidget(self.mapCanvas)
# 建立桥梁
self.model = QgsLayerTreeModel(PROJECT.layerTreeRoot(), self)
self.model.setFlag(QgsLayerTreeModel.AllowNodeRename)
self.model.setFlag(QgsLayerTreeModel.AllowNodeReorder)
self.model.setFlag(QgsLayerTreeModel.AllowNodeChangeVisibility)
self.model.setFlag(QgsLayerTreeModel.ShowLegendAsTree)
self.model.setAutoCollapseLegendNodes(10)
self.layerTreeView.setModel(self.model)
self.layerTreeBridge = QgsLayerTreeMapCanvasBridge(
PROJECT.layerTreeRoot(), self.mapCanvas, self)
# 显示经纬度
self.mapCanvas.xyCoordinates.connect(self.showLngLat)
# 打开工程
self.actionOpen.triggered.connect(self.actionOpenTriggered)
# 退出程序
self.actionQuit.triggered.connect(self.close)
# 地图工具
# TODO:放大、缩小没有图标
self.actionPanTriggered()
self.actionPan.triggered.connect(self.actionPanTriggered)
self.actionZoomin.triggered.connect(self.actionZoomInTriggered)
self.actionZoomout.triggered.connect(self.actionZoomOutTriggered)
self.actionIdentity.triggered.connect(self.actionIdentifyTriggered)
# 图层
self.actionShapefile.triggered.connect(self.actionShapefileTriggered)
self.actionCsv.triggered.connect(self.actionCsvTriggered)
self.actionPostGIS.triggered.connect(self.actionPostGISTriggered)
self.actionWFS.triggered.connect(self.actionWFSTriggered)
self.actionGeotiff.triggered.connect(self.actionGeotiffTriggered)
self.actionXYZ.triggered.connect(self.actionXYZTriggered)
# 绘图工具
self.actionPoint.triggered.connect(self.actionPointTriggered)
self.actionLine.triggered.connect(self.actionLineTriggered)
self.actionRectangle.triggered.connect(self.actionRectangleTriggered)
self.actionPolygon.triggered.connect(self.actionPolygonTriggered)
# 关于Qt
self.actionAboutQt.triggered.connect(
lambda: QMessageBox.aboutQt(self, '关于Qt'))
self.actionAbout.triggered.connect(
lambda: QMessageBox.about(self, '关于', 'PyQGIS二次开发'))
# self.actionPan.triggered.connect(self.actionPanTriggered)
# self.actionIdentify.triggered.connect(self.actionIdentifyTriggered)
# 图层右键菜单
self.customMenuProvider = CustomMenuProvider(self.layerTreeView,
self.mapCanvas)
self.layerTreeView.setMenuProvider(self.customMenuProvider)
# self.layerTreeRegistryBridge = QgsLayerTreeRegistryBridge(PROJECT.layerTreeRoot(), PROJECT, self)
def actionOpenTriggered(self):
"""打开工程"""
data_file, ext = QFileDialog.getOpenFileName(self, '打开', '',
'工程文件(*.qgs , *.qgz)')
if data_file:
PROJECT.read(data_file)
def actionPanTriggered(self):
self.mapTool = QgsMapToolPan(self.mapCanvas)
self.mapCanvas.setMapTool(self.mapTool)
def actionZoomInTriggered(self):
self.mapTool = QgsMapToolZoom(self.mapCanvas, False)
self.mapCanvas.setMapTool(self.mapTool)
def actionZoomOutTriggered(self):
self.mapTool = QgsMapToolZoom(self.mapCanvas, True)
self.mapCanvas.setMapTool(self.mapTool)
def actionIdentifyTriggered(self):
# 设置识别工具
self.identifyTool = QgsMapToolIdentifyFeature(self.mapCanvas)
self.identifyTool.featureIdentified.connect(self.showFeatures)
self.mapCanvas.setMapTool(self.identifyTool)
# 设置需要识别的图层
layers = self.mapCanvas.layers()
if layers:
# 识别画布中第一个图层
self.identifyTool.setLayer(layers[0])
def showFeatures(self, feature):
print(type(feature))
QMessageBox.information(self, '信息', ''.join(feature.attributes()))
def actionAddGroupTriggered(self):
PROJECT.layerTreeRoot().addGroup('group1')
def actionShapefileTriggered(self):
"""打开shp"""
data_file, ext = QFileDialog.getOpenFileName(self, '打开', '', '*.shp')
if data_file:
layer = QgsVectorLayer(
data_file,
os.path.splitext(os.path.basename(data_file))[0], "ogr")
self.addLayer(layer)
def actionCsvTriggered(self):
"""加载csv数据"""
data_file, ext = QFileDialog.getOpenFileName(self, '打开', '', '*.csv')
if data_file:
# 去掉盘符，否则图层无效
data_file = os.path.splitdrive(data_file)[1]
uri = f"file://{data_file}?delimiter=,&xField=x&yField=y"
print(uri)
layer = QgsVectorLayer(uri, "point", "delimitedtext")
self.addLayer(layer)
def actionPostGISTriggered(self):
"""加载postgis图层"""
dialog = PostGISDialog(self)
if dialog.exec_():
uri = QgsDataSourceUri()
uri.setConnection(dialog.lineEditHost.text(),
dialog.lineEditPort.text(),
dialog.lineEditDatabase.text(),
dialog.lineEditUsername.text(),
dialog.lineEditPassword.text())
# lineEditGeometryColumn：根据实际情况，可能为：wkb_geometry、geometry、the_geom...
uri.setDataSource("public", dialog.lineEditLayer.text(),
dialog.lineEditGeometryColumn.text())
layer = QgsVectorLayer(uri.uri(False), dialog.lineEditLayer.text(),
"postgres")
self.addLayer(layer)
def actionWFSTriggered(self):
"""加载天地图WFS图层"""
uri = 'http://gisserver.tianditu.gov.cn/TDTService/wfs?' \
'srsname=EPSG:4326&typename=TDTService:RESA&version=auto&request=GetFeature&service=WFS'
layer = QgsVectorLayer(uri, "RESA", "WFS")
self.addLayer(layer)
def actionGeotiffTriggered(self):
"""加载geotiff"""
data_file, ext = QFileDialog.getOpenFileName(self, '打开', '', '*.tif')
if data_file:
layer = QgsRasterLayer(data_file, os.path.basename(data_file))
self.addLayer(layer)
def actionXYZTriggered(self):
uri = 'type=xyz&' \
'url=https://www.google.cn/maps/vt?lyrs=s@804%26gl=cn%26x={x}%26y={y}%26z={z}&' \
'zmax=19&' \
'zmin=0&' \
'crs=EPSG3857'
layer = QgsRasterLayer(uri, 'google', 'wms')
self.addLayer(layer)
def addLayer(self, layer):
if layer.isValid():
if self.first_flag:
self.mapCanvas.setDestinationCrs(layer.crs())
self.mapCanvas.setExtent(layer.extent())
self.first_flag = False
PROJECT.addMapLayer(layer)
layers = [layer
] + [PROJECT.mapLayer(i) for i in PROJECT.mapLayers()]
self.mapCanvas.setLayers(layers)
self.mapCanvas.refresh()
else:
print('图层无效.')
def actionPointTriggered(self):
self.pointTool = PointMapTool(self.mapCanvas)
self.mapCanvas.setMapTool(self.pointTool)
def actionLineTriggered(self):
self.lineTool = LineMapTool(self.mapCanvas)
self.mapCanvas.setMapTool(self.lineTool)
def actionRectangleTriggered(self):
self.rectangleTool = RectangleMapTool(self.mapCanvas)
self.mapCanvas.setMapTool(self.rectangleTool)
def actionPolygonTriggered(self):
self.polygonTool = PolygonMapTool(self.mapCanvas)
self.mapCanvas.setMapTool(self.polygonTool)
def showLngLat(self, point):
x = point.x()
y = point.y()
self.statusbar.showMessage(f'经度:{x}, 纬度:{y}')
def __init__(self):
super(MainWindow, self).__init__()
self.setupUi(self)
self.first_flag = True
self.setWindowTitle('PyQGIS')
# 调整窗口大小
self.resize(800, 600)
# 初始化图层树
vl = QVBoxLayout(self.dockWidgetContents)
self.layerTreeView = QgsLayerTreeView(self)
vl.addWidget(self.layerTreeView)
# 初始化地图画布
self.mapCanvas = QgsMapCanvas(self)
hl = QHBoxLayout(self.frame)
hl.setContentsMargins(0, 0, 0, 0)
hl.addWidget(self.mapCanvas)
# 建立桥梁
model = QgsLayerTreeModel(PROJECT.layerTreeRoot(), self)
model.setFlag(QgsLayerTreeModel.AllowNodeRename)
model.setFlag(QgsLayerTreeModel.AllowNodeReorder)
model.setFlag(QgsLayerTreeModel.AllowNodeChangeVisibility)
model.setFlag(QgsLayerTreeModel.ShowLegendAsTree)
model.setAutoCollapseLegendNodes(10)
self.layerTreeView.setModel(model)
self.layerTreeBridge = QgsLayerTreeMapCanvasBridge(
PROJECT.layerTreeRoot(), self.mapCanvas)
# 显示经纬度
self.mapCanvas.xyCoordinates.connect(self.showLngLat)
# 打开工程
self.actionOpen.triggered.connect(self.actionOpenTriggered)
# 退出程序
self.actionQuit.triggered.connect(self.close)
# 地图工具
# TODO:放大、缩小没有图标
self.actionPanTriggered()
self.actionPan.triggered.connect(self.actionPanTriggered)
self.actionZoomin.triggered.connect(self.actionZoomInTriggered)
self.actionZoomout.triggered.connect(self.actionZoomOutTriggered)
self.actionIdentity.triggered.connect(self.actionIdentifyTriggered)
# 图层
self.actionShapefile.triggered.connect(self.actionShapefileTriggered)
self.actionCsv.triggered.connect(self.actionCsvTriggered)
self.actionPostGIS.triggered.connect(self.actionPostGISTriggered)
self.actionWFS.triggered.connect(self.actionWFSTriggered)
self.actionGeotiff.triggered.connect(self.actionGeotiffTriggered)
self.actionXYZ.triggered.connect(self.actionXYZTriggered)
# 绘图工具
self.actionPoint.triggered.connect(self.actionPointTriggered)
self.actionLine.triggered.connect(self.actionLineTriggered)
self.actionRectangle.triggered.connect(self.actionRectangleTriggered)
self.actionPolygon.triggered.connect(self.actionPolygonTriggered)
# 关于Qt
self.actionAboutQt.triggered.connect(
lambda: QMessageBox.aboutQt(self, '关于Qt'))
self.actionAbout.triggered.connect(
lambda: QMessageBox.about(self, '关于', 'PyQGIS二次开发'))
# self.actionPan.triggered.connect(self.actionPanTriggered)
# self.actionIdentify.triggered.connect(self.actionIdentifyTriggered)
# 图层右键菜单
self.customMenuProvider = CustomMenuProvider(self.layerTreeView,
self.mapCanvas)
self.layerTreeView.setMenuProvider(self.customMenuProvider)
class AuxiliaryLegend( QDockWidget ):
currentLayerChanged = pyqtSignal( "QgsMapLayer" )
currentLayerQgis = pyqtSignal( "QgsMapLayer" )
syncGroupLayer = pyqtSignal()
addSelectedLayersQgis = pyqtSignal()
removeLayer = pyqtSignal( "QgsMapLayer" )
needSelectLayer = pyqtSignal()
closed = pyqtSignal()
def __init__( self, parent, numWin ):
def setTreeView():
def setModel():
self.model = QgsLayerTreeModel( ltg )
self.model.setFlag( QgsLayerTreeModel.AllowNodeReorder )
self.model.setFlag( QgsLayerTreeModel.AllowNodeChangeVisibility, True )
self.tview.setModel( self.model )
self.tview = QgsLayerTreeView( self )
self.tview.setSelectionMode( QAbstractItemView.ExtendedSelection )
setModel()
self.tview.currentLayerChanged.connect( self.currentLayerChanged.emit )
def setupUi():
self.setAllowedAreas( Qt.LeftDockWidgetArea )
winLegend.setWindowFlags( Qt.Widget )
toolBar.setFloatable( False )
toolBar.setMovable( False )
winLegend.addToolBar( toolBar )
self.setWidget( winLegend )
def addActions():
actn = QAction( winLegend )
actn.setIcon( qgis.utils.iface.actionShowSelectedLayers().icon() )
actn.setIconText( 'Show selected layers')
actn.setObjectName( 'showLayer')
actn.triggered.connect( self.onAction )
toolBar.addAction( actn )
actn = QAction( winLegend )
actn.setIcon( qgis.utils.iface.actionHideSelectedLayers().icon() )
actn.setIconText( 'Hide selected layers')
actn.setObjectName( 'hideLayer')
actn.triggered.connect( self.onAction )
toolBar.addAction( actn )
actn = QAction( winLegend )
actn.setIcon( qgis.utils.iface.actionRemoveLayer().icon() )
actn.setIconText( 'Remove selected layers')
actn.setObjectName( 'removeLayer')
actn.triggered.connect( self.onAction )
toolBar.addAction( actn )
toolBar.addSeparator()
actn = QAction( winLegend )
actn.setIcon( qgis.utils.iface.actionDuplicateLayer().icon() )
actn.setIconText( 'Add selected layers from main map')
actn.setObjectName( 'addLayer')
actn.triggered.connect( self.onAction )
toolBar.addAction( actn )
actn = QAction( winLegend )
actn.setIcon( QIcon( os.path.join( os.path.dirname(__file__), 'mActionCurrentLayer.png' ) ) )
actn.setIconText( 'Current layer for main map')
actn.setObjectName( 'currentLayer')
actn.triggered.connect( self.onAction )
toolBar.addAction( actn )
actn = QAction( winLegend )
actn.setIcon( QIcon( os.path.join( os.path.dirname(__file__), 'mActionAddGroup.png' ) ) )
actn.setObjectName( 'syncGroup' )
actn.triggered.connect( self.onAction )
toolBar.addAction( actn )
super( AuxiliaryLegend, self ).__init__( "#%d - Layers" % numWin, parent )
ltg = parent.ltg
self.tview = self.model = self.bridge = None
self.textSync = "Sync with group(main map) for new layers"
self.actSync = None
setTreeView()
winLegend = QMainWindow( self )
toolBar = QToolBar( winLegend )
setupUi()
addActions()
self.addNameSyncGroup( "None" )
winLegend.setCentralWidget( self.tview )
def addNameSyncGroup(self, name):
act = self.findChild( QAction, 'syncGroup' )
text = "%s -> %s" % ( self.textSync, name )
act.setIconText( text )
def setBridge(self, canvas):
ltg = self.model.rootGroup()
self.bridge = QgsLayerTreeMapCanvasBridge( ltg, canvas ) # Need wait populate ltg
def clearBridge(self):
if not self.bridge is None:
self.bridge.clear()
def closeEvent(self, event):
event.accept()
self.closed.emit()
@pyqtSlot()
def onAction(self):
nameSender = self.sender().objectName()
if nameSender in ( 'showLayer', 'hideLayer', 'removeLayer'):
nodes = self.tview.selectedLayerNodes()
if len( nodes ) == 0:
self.needSelectLayer.emit()
return
if nameSender in ( 'showLayer', 'hideLayer'):
checked = Qt.Checked if nameSender == 'showLayer' else Qt.Unchecked
map( lambda item: item.setVisible( checked ), nodes )
else:
ltg = self.model.rootGroup()
for node in nodes:
self.removeLayer.emit( node.layer() )
ltg.removeChildNode( node )
# addLayer, currentLayer
else:
if nameSender == 'addLayer':
self.addSelectedLayersQgis.emit()
elif nameSender == 'currentLayer':
self.currentLayerQgis.emit( self.tview.currentLayer() )
else:
self.syncGroupLayer.emit()
class see_map(QDialog):
#app2 = QgsApplication([], True)
#app2.initQgis()
def __init__(self, file_name):
super().__init__()
# Creación del Lienzo / Canvas
self.canvas = QgsMapCanvas(self)
self.setWindowTitle("Map of Track / Mapa del Recorrido")
self.canvas.setCanvasColor(Qt.white)
self.initGui()
if not file_name == None:
vlayer = QgsVectorLayer(file_name, "Track Converted", "ogr")
#vlayer.updateExtents()
self.project.instance().addMapLayer(vlayer)
vlayer.renderer().symbol().setWidth(2)
vlayer.renderer().symbol().setColor(QColor.fromRgb(250, 0, 0))
self.view.refreshLayerSymbology(vlayer.id())
uri = 'crs=EPSG:4326&dpiMode=7&format=image/jpeg&layers=IGNBaseTodo&styles=default&tileMatrixSet=EPSG:4326&url=http://www.ign.es/wmts/ign-base'
map_spain = QgsRasterLayer(uri, "Spain", "wms")
self.root.insertLayer(1, map_spain)
self.project.instance().addMapLayer(map_spain)
if not map_spain.isValid():
print("Track failed to load! /n" + file_name)
else:
print("Track Load Correct! " + file_name)
else:
uri = 'crs=EPSG:4326&dpiMode=7&format=image/jpeg&layers=IGNBaseTodo&styles=default&tileMatrixSet=EPSG:4326&url=http://www.ign.es/wmts/ign-base'
map_spain = QgsRasterLayer(uri, "Spain", "wms")
self.project.instance().addMapLayer(map_spain)
if not map_spain.isValid():
print("Track failed to load! /n" + file_name)
else:
print("Track Load Correct! " + file_name)
def zoomIn(self):
self.canvas.setMapTool(self.toolZoomIn)
def zoomOut(self):
self.canvas.setMapTool(self.toolZoomOut)
def pan(self):
self.canvas.setMapTool(self.toolPan)
def file(self):
filename, _ = QFileDialog.getOpenFileName(self,
'Selecciona Fichero GPX',
'c:/', 'QGis (*.qgz)')
if filename:
self.project.read(filename)
def initGui(self):
icon = QIcon()
icon.addPixmap(
QPixmap(
"C:/Roberto/Visual_Studio_Code/GisBike/programa/IMG/Qgis.png"),
QIcon.Normal, QIcon.Off)
self.setWindowIcon(icon)
self.setWindowModality(Qt.WindowModal)
self.setWindowFlags(Qt.Window
| Qt.WindowSystemMenuHint
| Qt.WindowMinimizeButtonHint
| Qt.WindowMaximizeButtonHint
| Qt.WindowCloseButtonHint)
self.resize(1200, 600)
self.verticalLayout_2 = QVBoxLayout(self)
self.splitter = QSplitter(self)
self.splitter.setOrientation(Qt.Horizontal)
self.actionZoomIn = QPushButton("Zoom in", self.splitter)
self.actionZoomOut = QPushButton("Zoom out", self.splitter)
self.actionPan = QPushButton("Pan", self.splitter)
self.actionFile = QPushButton("File", self.splitter)
self.project = QgsProject.instance()
self.project.read('C:/Users/Fcc/Desktop/QGis/pruebas2.qgz')
self.root = QgsProject.instance().layerTreeRoot()
self.bridge = QgsLayerTreeMapCanvasBridge(self.root, self.canvas)
self.bridge.setCanvasLayers()
self.bridge.setAutoSetupOnFirstLayer(True)
#https://gis.stackexchange.com/questions/141516/adding-legend-to-canvas-in-standalone-pyqgis-application
self.model = QgsLayerTreeModel(self.root)
self.model.setFlag(QgsLayerTreeModel.AllowNodeReorder)
self.model.setFlag(QgsLayerTreeModel.AllowNodeRename)
self.model.setFlag(QgsLayerTreeModel.AllowNodeChangeVisibility)
self.model.setFlag(QgsLayerTreeModel.ShowLegend)
self.view = QgsLayerTreeView(self.splitter)
self.view.setModel(self.model)
self.view.setFixedWidth(150)
#self.view.resize(150,600)
self.widget = QWidget(self.splitter)
self.verticalLayout = QVBoxLayout(self.widget)
self.verticalLayout.setContentsMargins(0, 0, 0, 0)
self.horizontalLayout = QHBoxLayout()
self.horizontalLayout.addWidget(self.actionZoomIn)
self.horizontalLayout.addWidget(self.actionZoomOut)
self.horizontalLayout.addWidget(self.actionPan)
self.horizontalLayout.addWidget(self.actionFile)
self.verticalLayout.addLayout(self.horizontalLayout)
self.verticalLayout.addWidget(self.canvas)
self.verticalLayout_2.addWidget(self.splitter)
self.actionZoomIn.clicked.connect(self.zoomIn)
self.actionZoomOut.clicked.connect(self.zoomOut)
self.actionPan.clicked.connect(self.pan)
self.actionFile.clicked.connect(self.file)
# create the map tools
self.toolPan = QgsMapToolPan(self.canvas)
self.toolZoomIn = QgsMapToolZoom(self.canvas, False) # false = in
self.toolZoomOut = QgsMapToolZoom(self.canvas, True) # true = out
