HYTOS

        import shapely

        if type(self.parent) is QEngineeringLineItem and self._savedPos is not None:

            #item = self.scene().itemAt(event.scenePos(), QTransform())

            item = self.getItemsAtPoint(event.scenePos())

            if item is not None and item is not self.parent and type(item) is QEngineeringLineItem:

                length = item.length()*0.5

                dir = item.perpendicular()

                start = [event.scenePos().x() - dir[0]*length, event.scenePos().y() - dir[1]*length]

                end = [event.scenePos().x() + dir[0]*length, event.scenePos().y() + dir[1]*length]

                pt = item.intersection([start, end])

                if (pt is not None) and (type(pt) == shapely.geometry.point.Point):

                    self.setPos((pt.x, pt.y))

                    self.connectedItem = item

            elif item is not None and type(item) is QEngineeringConnectorItem and item is not self:

                self.setPos(item.center())

                if self.connectedItem is not None:

                    for connect in self.connectedItem.connectors:

                        if connect.connectedItem == self.parent:

                            connect.connectedItem = None

                self.connectedItem = item.parent

                item.connectedItem = self.parent

            else:

                other = [connector for connector in self.parent.connectors if connector is not self]

                if other:

                    pt = [event.scenePos().x(), event.scenePos().y()]

                    dx = abs(pt[0] - other[0].center()[0])

                    dy = abs(pt[1] - other[0].center()[1])

                    if dx < dy:

                        pt[0] = other[0].center()[0]

                    else:

                        pt[1] = other[0].center()[1]

                self.setPos(pt)

                if self.connectedItem is not None:

                    for connect in self.connectedItem.connectors:

                        if connect.connectedItem == self.parent:

                            connect.connectedItem = None

                self.connectedItem = None

        @brief      

        @author     kyouho

        @date       2018.08.10

    '''

    def getItemsAtPoint(self, scenePos):

        itemList = []

        items = [item for item in self.scene().items() if (type(item) is QEngineeringLineItem or type(item) is QEngineeringConnectorItem)]

        for item in items:

            # Line 아이템만 (자기 자신의 부모 제외)

            if type(item) is QEngineeringLineItem and item is not self.parent and item.contains(scenePos):

                itemList.append(item)

            # connector의 부모가 라인이 아닌 것만

            elif type(item) is QEngineeringConnectorItem and type(item.parent) is not QEngineeringLineItem:

                rect = item.sceneBoundingRect()

                if rect.contains(scenePos):

                    itemList.append(item)

                #if True:

                 #   pass

        if len(itemList) > 0:

            return itemList[0]

        else:

            return None

    '''