def canvasMoveEvent(self, e):
self.rubberBandPt.reset(QGis.Point)
snapPoint = QgisHelper.snapPoint(e.pos(), self.mSnapper,
define._canvas, True)
if snapPoint != None:
self.rubberBandPt.addPoint(snapPoint)
self.rubberBandPt.show()
if self.isDrawing:
if snapPoint == None:
self.endPoint = self.toMapCoordinates(e.pos())
else:
self.endPoint = snapPoint
self.drawLine()
def canvasReleaseEvent(self, e):
if ( e.button() == Qt.RightButton ):
self.emit(SIGNAL("resultLineCreate"), self.rubberBand.asGeometry())
self.reset()
self.isDrawing = False
else:
self.rubberBandPt.reset(QGis.Point)
snapPoint = QgisHelper.snapPoint(e.pos(), self.mSnapper, define._canvas, True)
if self.startPoint == None:
self.rubberBand.reset(QGis.Line)
if snapPoint == None:
self.startPoint = self.toMapCoordinates(e.pos())
else:
self.startPoint = snapPoint
self.rubberBand.addPoint(self.startPoint)
self.isDrawing = True
else:
if snapPoint == None:
self.endPoint = self.toMapCoordinates(e.pos())
else:
self.endPoint = snapPoint
self.rubberBand.addPoint(self.endPoint)
self.startPoint = self.endPoint
def canvasPressEvent(self, e):
#self.isEmittingPoint = True
self.rubberBandPt.reset(QGis.Point)
snapPoint = QgisHelper.snapPoint(e.pos(), self.mSnapper,
define._canvas, True)
if self.isDrawing == False:
if snapPoint == None:
self.startPoint = self.toMapCoordinates(e.pos())
else:
self.startPoint = snapPoint
self.isDrawing = True
else:
self.isDrawing = False
if snapPoint == None:
self.endPoint = self.toMapCoordinates(e.pos())
else:
self.endPoint = snapPoint
self.drawLine()
self.reset()
startPointPlan = None
endPointPlan = None
startPointGeodetic = None
endPointGeodetic = None
unitDefault = None
try:
if self.txtBearingGeodetic == None:
startPointPlan = self.startPoint
endPointPlan = self.endPoint
else:
if define._units == QGis.Meters:
startPointPlan = self.startPoint
endPointPlan = self.endPoint
startPointGeodetic = QgisHelper.CrsTransformPoint(
startPointPlan.x(), startPointPlan.y(),
define._xyCrs, define._latLonCrs)
endPointGeodetic = QgisHelper.CrsTransformPoint(
endPointPlan.x(), endPointPlan.y(), define._xyCrs,
define._latLonCrs)
else:
startPointGeodetic = self.startPoint
endPointGeodetic = self.endPoint
startPointPlan = QgisHelper.CrsTransformPoint(
startPointGeodetic.x(), startPointGeodetic.y(),
define._latLonCrs, define._xyCrs)
endPointPlan = QgisHelper.CrsTransformPoint(
endPointGeodetic.x(), endPointGeodetic.y(),
define._latLonCrs, define._xyCrs)
unitDefault = QGis.Meters
pass
except:
return
if isinstance(self.txtBearing, NumberBoxPanel):
al = MathHelper.getBearing(startPointPlan, endPointPlan,
unitDefault)
al = Unit.ConvertRadToDeg(al)
self.txtBearing.Value = round(al, 4)
else:
al = MathHelper.getBearing(startPointPlan, endPointPlan,
unitDefault)
al = Unit.ConvertRadToDeg(al)
self.txtBearing.setText(str(round(al, 4)))
if self.txtBearingGeodetic != None:
al = MathHelper.getBearing(startPointGeodetic,
endPointGeodetic,
QGis.DecimalDegrees)
al = Unit.ConvertRadToDeg(al)
self.txtBearingGeodetic.Value = round(al, 4)
