本文整理汇总了Python中qgis.gui.QgsMapCanvas.setWheelFactor方法的典型用法代码示例。如果您正苦于以下问题：Python QgsMapCanvas.setWheelFactor方法的具体用法？Python QgsMapCanvas.setWheelFactor怎么用？Python QgsMapCanvas.setWheelFactor使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类qgis.gui.QgsMapCanvas的用法示例。
在下文中一共展示了QgsMapCanvas.setWheelFactor方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: DiviPluginHistoryDialog
# 需要导入模块: from qgis.gui import QgsMapCanvas [as 别名]
# 或者: from qgis.gui.QgsMapCanvas import setWheelFactor [as 别名]
class DiviPluginHistoryDialog(QDialog, FORM_CLASS):
def __init__(self, plugin, parent=None):
"""Constructor."""
super(DiviPluginHistoryDialog, 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.plugin = plugin
#self.iface = plugin.iface
self.setupUi(self)
self.initGui()
def initGui(self):
#Models
self.tblChanges.setModel( ChangeModel() )
proxyChanges = HistoryProxyModel()
proxyChanges.setSourceModel( HistoryModel() )
self.tblHistory.setModel( proxyChanges )
#Signals
self.plugin.tvIdentificationResult.model().sourceModel().on_history.connect( self.historyChanged )
self.tblHistory.selectionModel().currentChanged.connect( self.currentHistoryChanged )
#Widgets
settings = QSettings()
self.mapCanvas = QgsMapCanvas(self.vSplitter)
self.mapCanvas.setDestinationCrs( QgsCoordinateReferenceSystem('EPSG:4326') )
zoomFactor = settings.value( "/qgis/zoom_factor", 2.0, type=float )
action = settings.value( "/qgis/wheel_action", 0, type=int)
self.mapCanvas.setWheelFactor( zoomFactor )
self.mapCanvas.enableAntiAliasing( settings.value( "/qgis/enable_anti_aliasing", False, type=bool ))
#self.mapCanvas.useImageToRender( settings.value( "/qgis/use_qimage_to_render", False, type=bool ))
self.toolPan = QgsMapToolPan( self.mapCanvas )
self.mapCanvas.setMapTool( self.toolPan )
#Canvas items
self.new_geometry = QgsRubberBand(self.mapCanvas)
self.new_geometry.setWidth(2)
self.new_geometry.setIcon( QgsRubberBand.ICON_CIRCLE )
g = QColor(0, 128, 0, 100)
self.new_geometry.setColor( g )
self.old_geometry = QgsRubberBand(self.mapCanvas)
self.old_geometry.setWidth(2)
self.old_geometry.setIcon( QgsRubberBand.ICON_CIRCLE )
r = QColor(255, 0, 0, 100)
self.old_geometry.setColor( r )
def show(self, data=[]):
model = self.tblHistory.model().sourceModel()
model.addItems(data)
if data:
self.tblHistory.selectionModel().setCurrentIndex( model.index(0,0), QItemSelectionModel.ClearAndSelect | QItemSelectionModel.Rows )
super(DiviPluginHistoryDialog, self).show()
def historyChanged(self):
""" Reaload data if window is visible """
if self.isVisible():
self.plugin.showHistoryDialog()
def currentHistoryChanged(self, current, previous):
self.new_geometry.reset()
self.old_geometry.reset()
self.tblChanges.model().removeRows()
if not current.isValid():
return
item = current.data(Qt.UserRole)
if item is None:
data = {}
else:
data = current.data(Qt.UserRole).getDetails()
with SetLocale_CtxDec():
extent = None
if data.get('new_geometry'):
wkt = CreateGeometryFromJson( json.dumps(data['new_geometry']) ).ExportToWkt()
geom = QgsGeometry.fromWkt( wkt )
l = QgsVectorLayer('Point?crs=epsg:4326', 'asd', 'memory')
self.new_geometry.setToGeometry( geom, l )
extent = QgsRectangle(geom.boundingBox())
if data.get('old_geometry'):
wkt = CreateGeometryFromJson( json.dumps(data['old_geometry']) ).ExportToWkt()
geom = QgsGeometry.fromWkt( wkt )
l = QgsVectorLayer('Point?crs=epsg:4326', 'asd', 'memory')
self.old_geometry.setToGeometry( geom, l )
if extent is None:
extent = QgsRectangle(geom.boundingBox())
else:
extent.combineExtentWith( geom.boundingBox() )
if extent is not None:
extent.grow(0.01)
self.mapCanvas.setExtent( extent )
self.mapCanvas.refresh()
if data.get('what_attributes', []):
self.tblChanges.model().insertRows( 0, data.get('what_attributes', []) )