def __init__(self, iface, mainWindow=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
"""
# store references to important stuff from QGIS
self.iface = iface
self.canvas = iface.mapCanvas()
self._project = QgsProject.instance()
self._observingLayer = None
self._uiHook = mainWindow if isinstance(mainWindow,
QMainWindow) else iface
# region: LOCALE - UNUSED
# initialize plugin directory
self.plugin_dir = os.path.dirname(__file__)
#
#initialize locale
localeString = QSettings().value('locale/userLocale')
if (localeString):
locale = localeString[0:2]
else:
locale = QLocale().language()
locale_path = os.path.join(self.plugin_dir, 'i18n',
'coordinator_{}.qm'.format(locale))
if os.path.exists(locale_path):
self.translator = QTranslator()
self.translator.load(locale_path)
QCoreApplication.installTranslator(self.translator)
# endregion
# plugin housekeeping:
self.openPanelAction = None
self.pluginIsActive = False
self.dockwidget = None
# Init CRS Transformation:
self._inputCrs = None
self._outputCrs = None
# self._transform : input -> output transformation
# self._canvasTransform: input -> canvas transformation
self.__initTransformers()
# initialize canvas marker icon:
self.marker = QgsVertexMarker(self.canvas)
self.marker.hide()
self.marker.setColor(QColor(255, 0, 0))
self.marker.setIconSize(14)
self.marker.setIconType(
QgsVertexMarker.ICON_CIRCLE
) # See the enum IconType from http://www.qgis.org/api/classQgsVertexMarker.html
self.marker.setPenWidth(3)
# init point picker:
self.mapTool = QgsMapToolEmitPoint(self.canvas)
