def startFlashFeature(self, featureGeometry, layerCrs):
geomType = QgsWkbTypes.geometryType(featureGeometry.wkbType())
rb = QgsRubberBand(iface.mapCanvas(), geomType)
rb.addGeometry( featureGeometry, layerCrs )
flashes=3
duration=500
if geomType == QgsWkbTypes.LineGeometry or geomType == QgsWkbTypes.PointGeometry:
rb.setWidth( 2 )
rb.setSecondaryStrokeColor( QColor( 255, 255, 255 ) )
if geomType == QgsWkbTypes.PointGeometry :
rb.setIcon( QgsRubberBand.ICON_CIRCLE )
startColor = QColor(255, 0, 0, 255)
startColor.setAlpha( 255 )
endColor = QColor(255, 0, 0, 0)
endColor.setAlpha( 0 )
self.animation = QVariantAnimation( iface.mapCanvas() )
self.animation.finished.connect(lambda a=self.animation, b=rb: self.finishedAnimation(a, b))
self.animation.valueChanged.connect(lambda value, a=self.animation, b=rb, c=geomType: self.valueChangedAnimation(value, a, b, c))
self.animation.setDuration( duration * flashes )
self.animation.setStartValue( endColor )
midStep = 0.2 / flashes
for i in range(flashes):
start = float(i / flashes)
self.animation.setKeyValueAt( start + midStep, startColor )
end = float(( i + 1 ) / flashes)
if not(end == 1.0):
self.animation.setKeyValueAt( end, endColor )
self.animation.setEndValue( endColor )
self.animation.start()
def getSnapRubberBand(self):
rubberBand = QgsRubberBand(self.canvas,
geometryType=QgsWkbTypes.PointGeometry)
rubberBand.setFillColor(QColor(255, 0, 0, 40))
rubberBand.setSecondaryStrokeColor(QColor(255, 0, 0, 200))
rubberBand.setWidth(2)
rubberBand.setIcon(QgsRubberBand.ICON_X)
return rubberBand
def getRubberBand(self):
geomType = self.iface.activeLayer().geometryType()
if geomType == QgsWkbTypes.PolygonGeometry:
rubberBand = QgsRubberBand(self.canvas, True)
rubberBand.setFillColor(QColor(255, 0, 0, 40))
elif geomType == QgsWkbTypes.LineGeometry:
rubberBand = QgsRubberBand(self.canvas, False)
rubberBand.setSecondaryStrokeColor(QColor(255, 0, 0, 200))
rubberBand.setWidth(2)
return rubberBand
