Editing Points

Editing a Point feature is also quite straightforward: since the geometry consists of only one point, the user can simply click-and-drag to move the point around within the map layer. The following is a map tool that implements this behavior:

class MovePointTool(QgsMapToolIdentify):
    def __init__(self, mapCanvas, layer):
        QgsMapToolIdentify.__init__(self, mapCanvas)
        self.setCursor(Qt.CrossCursor)
        self.layer    = layer
        self.dragging = False
        self.feature  = None

    def canvasPressEvent(self, event):
        found_features = self.identify(event.x(), event.y(),
                                       [self.layer],
                                       self.TopDownAll)
        if len(found_features) > 0:
            self.dragging = True
            self.feature  = found_features[0].mFeature
        else:
            self.dragging = False
            self.feature  = None

    def canvasMoveEvent(self, event):
        if self.dragging...