def __init__(self, iface, params={}, parent=None):
'''
Constructor
:param iface: An interface instance that will be passed to this class
which provides the hook by which you can manipulate the QGIS
application at run time.
:type iface: QgsInterface
:param params: A dictionary defining all the properties of the item
:type params: dictionary
:param parent: Parent object for the new item. Defaults None.
:type parent: QObject
'''
super(MobileItem, self).__init__(parent)
self.iface = iface
self.canvas = iface.mapCanvas()
MobileItem.mobileItemCount += 1
self.name = params.setdefault(
'Name', 'MobileItem_' + str(MobileItem.mobileItemCount))
self.marker = PositionMarker(self.canvas, params)
self.marker.setToolTip(self.name)
self.dataProvider = params.get('provider', dict())
self.messageFilter = dict()
self.extData = dict()
self.coordinates = None
self.position = None
self.heading = 0.0
self.depth = 0.0
self.lastFix = 0.0
self.crsXform = QgsCoordinateTransform()
self.crsXform.setSourceCrs(QgsCoordinateReferenceSystem(4326))
self.onCrsChange()
self.canvas.destinationCrsChanged.connect(self.onCrsChange)
if hasattr(self.canvas, 'magnificationChanged'):
self.canvas.magnificationChanged.connect(
self.onMagnificationChanged)
self.timer = QTimer(self)
self.timer.timeout.connect(self.timeout)
self.notifyCount = int(params.get('nofixNotify', 0))
if self.notifyCount:
self.timer.timeout.connect(self.notifyTimeout)
self.timeoutCount = 0
self.timeoutTime = int(params.get('timeout', 3000))
self.notifyDuration = int(params.get('NotifyDuration', 0))
self.enabled = True
