hytos / HYTOS / HYTOS / Shapes / EngineeringStreamlineItem.py @ c19a2508
이력 | 보기 | 이력해설 | 다운로드 (19.5 KB)
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# coding: utf-8
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""" This is stream line item module """
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import sys |
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import os.path |
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import copy |
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import numpy as np |
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try:
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from PyQt5.QtCore import * |
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from PyQt5.QtGui import * |
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from PyQt5.QtWidgets import * |
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except ImportError: |
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try:
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from PyQt4.QtCore import Qt, QRectF, QObject, pyqtSignal, QT_VERSION_STR |
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from PyQt4.QtGui import QGraphicsView, QGraphicsScene, QImage, QPixmap, QPainterPath, QFileDialog, QColor |
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except ImportError: |
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raise ImportError("ImageViewerQt: Requires PyQt5 or PyQt4.") |
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from EngineeringAbstractItem import QEngineeringAbstractItem |
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class QEngineeringStreamlineItem(QGraphicsPathItem, QEngineeringAbstractItem): |
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""" This is EngineeringStreamlineItem Class """
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ARROW_SIZE = 10
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ZVALUE = 100
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onRemoved = pyqtSignal(QGraphicsItem) |
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'''
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@history 2018.05.11 Jeongwoo Declare variable self.pen
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2018.05.15 Jeongwoo Change method to call parent's __init__
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2018.05.25 Jeongwoo Change self.pen's default color (red → blue)
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'''
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def __init__(self, uid=None, parent=None): |
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import uuid |
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from EngineeringStreamNoTextItem import QEngineeringStreamNoTextItem |
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try:
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QGraphicsPathItem.__init__(self, parent)
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QEngineeringAbstractItem.__init__(self)
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self.setFlags(QGraphicsItem.ItemIsSelectable|QGraphicsItem.ItemIsFocusable)
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self.setAcceptHoverEvents(True) |
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self.setAcceptTouchEvents(True) |
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self.uid = uuid.uuid4() if uid is None else uid |
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self.parent = parent
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self._vertices = []
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self.isCreated = False |
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self._pt = None |
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self.setPen(QPen(Qt.blue, 1, Qt.SolidLine)) # set default pen |
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self._stream_no = 0 |
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self._stream_no_text = None |
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self.transfer = Transfer()
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self.setZValue(QEngineeringStreamlineItem.ZVALUE)
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except Exception as ex: |
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from App import App |
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from AppDocData import MessageType |
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message = 'error occurred({}) in {}:{}'.format(ex, sys.exc_info()[-1].tb_frame.f_code.co_filename, |
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sys.exc_info()[-1].tb_lineno)
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App.mainWnd().addMessage.emit(MessageType.Error, message) |
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def __repr__(self): |
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""" return string represents stream line item """
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return 'Line_{}'.format(self._stream_no) |
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@property
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def stream_no(self): |
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""" return stream no """
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return self._stream_no |
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@stream_no.setter
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def stream_no(self, value): |
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""" set stream no with given value """
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from EngineeringStreamNoTextItem import QEngineeringStreamNoTextItem |
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self._stream_no = value
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self._stream_no_text = QEngineeringStreamNoTextItem('<{}>'.format(self._stream_no), self) |
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self.build_path()
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@property
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def data(self): |
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""" return hmb data"""
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from AppDocData import AppDocData |
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app_doc_data = AppDocData.instance() |
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return app_doc_data.activeDrawing.hmbTable.get_hmb_data(self.uid) |
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@property
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def density(self): |
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""" return density """
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from AppDocData import AppDocData |
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res = 0
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app_doc_data = AppDocData.instance() |
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hmb_data = app_doc_data.activeDrawing.hmbTable.get_hmb_data(self.uid)
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if hmb_data: res = hmb_data.density
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return res
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@property
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def press_drop(self): |
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""" return press drop """
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from AppDocData import AppDocData |
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app_doc_data = AppDocData.instance() |
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hmb_data = app_doc_data.activeDrawing.hmbTable.get_hmb_data(self.uid)
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return hmb_data.pressure_drop if hmb_data else 0 |
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def build_connectors(self, connected, pointsUids=None): |
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""" build connectors for stream line
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connected is target connector
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"""
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from SymbolSvgItem import SymbolSvgItem |
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from EngineeringConnectorItem import QEngineeringConnectorItem |
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targets = [] |
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index = 0
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for vertex in [self._vertices[0],self._vertices[-1]]: |
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if pointsUids:
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connector = QEngineeringConnectorItem(pointsUids[index], parent=self, index=index+1) |
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else:
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connector = QEngineeringConnectorItem(uid=None, parent=self, index=index+1) |
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connector.setPos(vertex) |
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connector.setParentItem(self)
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connector.connectPoint = vertex |
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connector.sceneConnectPoint = vertex |
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# add connector move ables
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connector.setFlags(QGraphicsItem.ItemIsSelectable|QGraphicsItem.ItemIsFocusable) |
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connector.setAcceptTouchEvents(True)
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connector.transfer.onPosChanged.connect(self.on_connector_pos_changed)
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connector.setZValue(self.zValue() + 1) |
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self.connectors.append(connector)
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if len(connected) > index: |
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connected_item_uid = connected[index] |
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if connected_item_uid:
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connector.connect(connected_item_uid) |
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target = QEngineeringConnectorItem.find_connector(connected_item_uid) |
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if target:
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target.connect(connector) |
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targets.append(target) |
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index = index + 1
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""" connect symbol's on_pos_changed signal """
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for symbol in [conn.parentItem() for conn in targets if type(conn.parentItem()) is SymbolSvgItem]: |
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symbol.transfer.on_pos_changed.connect(self.on_symbol_pos_changed)
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symbol.transfer.on_size_changed.connect(self.on_symbol_pos_changed)
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self.update_arrow()
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def update_arrow(self): |
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""" update flow arrow """
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import math |
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from EngineeringArrowItem import QEngineeringArrowItem |
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if len(self._vertices) < 2: return |
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start = self._vertices[-2] |
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end = self._vertices[-1] |
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dx = end[0] - start[0] |
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dy = end[1] - start[1] |
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length = math.sqrt(dx*dx + dy*dy) |
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if length == 0: return |
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_dir = [(end[0] - start[0])/length, (end[1] - start[1])/length] |
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perpendicular = (-_dir[1], _dir[0]) |
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polygon = QPolygonF() |
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polygon.append(QPointF(end[0] - _dir[0] * QEngineeringStreamlineItem.ARROW_SIZE + perpendicular[ |
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0] * QEngineeringStreamlineItem.ARROW_SIZE * 0.25, |
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end[1] - _dir[1] * QEngineeringStreamlineItem.ARROW_SIZE + perpendicular[ |
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1] * QEngineeringStreamlineItem.ARROW_SIZE * 0.25)) |
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polygon.append(QPointF(end[0] - _dir[0] * QEngineeringStreamlineItem.ARROW_SIZE - perpendicular[ |
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0] * QEngineeringStreamlineItem.ARROW_SIZE * 0.25, |
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end[1] - _dir[1] * QEngineeringStreamlineItem.ARROW_SIZE - perpendicular[ |
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1] * QEngineeringStreamlineItem.ARROW_SIZE * 0.25)) |
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polygon.append(QPointF(end[0], end[1])) |
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polygon.append(polygon[0]) # close polygon |
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if not hasattr(self, '_arrow'): |
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self._arrow = QEngineeringArrowItem(polygon, self) |
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else:
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self._arrow.setPolygon(polygon)
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self._arrow.setBrush(Qt.blue)
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self._arrow.update()
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'''
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@brief construct a polyline
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'''
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def process(self, param): |
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if ('mousePressEvent' == param[0]) and (param[1].button() == Qt.LeftButton): |
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self._vertices.append(param[2]) |
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elif ('mouseMoveEvent' == param[0]): |
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self._pt = param[2] |
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elif ('mouseReleaseEvent' == param[0]) and (param[1].button() == Qt.RightButton): |
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self.isCreated = True |
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'''
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@brief clone an object
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'''
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def clone(self): |
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clone = QEngineeringStreamlineItem() |
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clone._vertices = copy.deepcopy(self._vertices)
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clone.isCreated = self.isCreated
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return clone
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def init(self): |
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self._vertices = []
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self._pt = None |
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self.isCreated = False |
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'''
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@build build path
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@author humkyung
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@date 2018.04.23
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'''
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def build_path(self): |
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if not self._vertices or len(self._vertices) < 2: |
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return
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try:
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path = QPainterPath() |
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path.moveTo(self._vertices[0][0], self._vertices[0][1]) |
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max_length = 0
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max_length_line = [None, None] |
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for i in range(1, len(self._vertices)): |
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path.lineTo(self._vertices[i][0], self._vertices[i][1]) |
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dx = self._vertices[i][0] - self._vertices[i-1][0] |
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dy = self._vertices[i][1] - self._vertices[i-1][1] |
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if dx*dx + dy*dy > max_length:
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max_length = dx*dx + dy*dy |
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max_length_line[0] = self._vertices[i-1] |
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max_length_line[1] = self._vertices[i] |
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self.setPath(path)
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self.isCreated = True |
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if self._stream_no_text: |
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if max_length_line[0] is not None and max_length_line[1] is not None: |
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x = (max_length_line[0][0] + max_length_line[1][0] - self._stream_no_text.textWidth())*0.5 |
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y = (max_length_line[0][1] + max_length_line[1][1])*0.5 |
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self._stream_no_text.setPos(QPointF(x, y))
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dx = max_length_line[0][0] - max_length_line[1][0] |
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dy = max_length_line[0][1] - max_length_line[1][1] |
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self._stream_no_text.setRotation(90) if abs(dy) > abs(dx) else self._stream_no_text.setRotation(0) |
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except Exception as ex: |
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from App import App |
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from AppDocData import MessageType |
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message = 'error occurred({}) in {}:{}'.format(ex, sys.exc_info()[-1].tb_frame.f_code.co_filename, |
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sys.exc_info()[-1].tb_lineno)
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App.mainWnd().addMessage.emit(MessageType.Error, message) |
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'''
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@brief return bounding rectangle of polyline
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@author humkyung
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@date 2018.07.23
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'''
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def boundingRect(self): |
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rect = QRectF() |
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if self.isCreated: |
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rect = self.path().boundingRect()
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rect = QRectF(rect.left() - 5, rect.top() - 5, rect.width() + 10, rect.height() + 10) |
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else:
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minX = None
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minY = None
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maxX = None
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maxY = None
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for pt in self._vertices: |
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if minX is None or pt[0] < minX: |
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minX = pt[0]
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if minY is None or pt[1] < minY: |
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minY = pt[1]
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if maxX is None or pt[0] > maxX: |
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maxX = pt[0]
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if maxY is None or pt[1] > maxY: |
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maxY = pt[1]
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if self._pt is not None: |
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if minX is None or self._pt[0] < minX: |
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minX = self._pt[0] |
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if minY is None or self._pt[1] < minY: |
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minY = self._pt[1] |
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if maxX is None or self._pt[0] > maxX: |
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maxX = self._pt[0] |
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if maxY is None or self._pt[1] > maxY: |
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maxY = self._pt[1] |
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if minX is not None and minY is not None and maxX is not None and maxY is not None: |
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rect = QRectF(minX - 5, minY - 5, maxX - minX + 10, maxY - minY + 10) |
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return rect
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'''
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@brief
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@author humkyung
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@date 2018.07.26
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'''
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def onMouseMoved(self, event, scenePos): |
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from SymbolSvgItem import SymbolSvgItem |
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from EngineeringConnectorItem import QEngineeringConnectorItem |
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# get connection point near by mouse point
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pt = (scenePos.x(), scenePos.y()) |
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item = self.scene().itemAt(scenePos, QTransform())
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if (item is not None) and (type(item) is SymbolSvgItem): |
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connPt = item.getConnectionPointCloseTo(pt, 5)
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if connPt is not None: pt = connPt |
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elif (item is not None) and (type(item) is QEngineeringConnectorItem): |
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pt = item.center() |
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# up to here
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del self._vertices[1:] |
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dx = pt[0] - self._vertices[0][0] |
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dy = pt[1] - self._vertices[0][1] |
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self._vertices.append((self._vertices[0][0] + dx*0.5, self._vertices[0][1])) |
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self._vertices.append((self._vertices[-1][0], self._vertices[-1][1] + dy)) |
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self._vertices.append(pt)
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self.build_path()
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self.update()
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def hoverEnterEvent(self, event): |
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""" hilight item and it's children """
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self.highlight(True) |
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def hoverLeaveEvent(self, event): |
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""" unhighlight item """
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self.highlight(False) |
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def highlight(self, flag): |
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self.hover = flag
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self.setZValue(QEngineeringAbstractItem.HOVER_ZVALUE) if flag else self.setZValue( |
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QEngineeringStreamlineItem.ZVALUE) |
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self.update()
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def paint(self, painter, option, widget): |
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""" override paint method """
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if self.isSelected(): |
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hilightColor = QColor(255, 0, 0, 127) |
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focuspen = QPen(Qt.DotLine) |
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focuspen.setColor(hilightColor) |
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focuspen.setWidthF(3)
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painter.setPen(focuspen) |
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painter.drawPath(self.path())
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else:
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color = self.getColor()
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self.setColor(color)
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QGraphicsPathItem.paint(self, painter, option, widget)
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'''
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@brief Return real item position
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@authro Jeongwoo
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@date 2018.05.29
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'''
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def boundingRectOnScene(self): |
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rect = self.boundingRect()
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sp = self.startPoint()
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rect.moveTo(sp[0], sp[1]) |
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return rect
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'''
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@brief Set Color. Override QEngineeringAbstractItem's
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@author Jeongwoo
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@date 2018.05.11
|
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@history 2018.05.11 Jeongwoo Add self.setPen() Method
|
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@history humkyung 2018.05.13 call setPen method to apply changed color
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'''
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def setColor(self, color): |
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c = QColor() |
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c.setNamedColor(color) |
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_pen = self.pen()
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_pen.setColor(c) |
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self.setPen(_pen)
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self.update()
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|
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def on_symbol_pos_changed(self, symbol): |
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""" rebuild stream line because symbol position is changed """
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if self.connectors[0].connectedItem is not None: self.connectors[0].setPos( |
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self.connectors[0].connectedItem.center()) |
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if self.connectors[-1].connectedItem is not None: self.connectors[-1].setPos( |
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self.connectors[-1].connectedItem.center()) |
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self.on_connector_pos_changed(None) |
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|
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def on_connector_pos_changed(self, connector): |
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""" rebuild stream line """
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self._vertices = []
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self._vertices.append(self.connectors[0].center()) |
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dx = self.connectors[-1].center()[0] - self._vertices[0][0] |
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dy = self.connectors[-1].center()[1] - self._vertices[0][1] |
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self._vertices.append((self._vertices[0][0] + dx*0.5, self._vertices[0][1])) |
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self._vertices.append((self._vertices[-1][0], self._vertices[-1][1] + dy)) |
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self._vertices.append(self.connectors[-1].center()) |
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self.build_path()
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self.update_arrow()
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self.update()
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def mouseDoubleClickEvent(self, event): |
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from StreamDataDialog import QStreamDataDialog |
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dialog = QStreamDataDialog() |
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res = dialog.showDialog(self)
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if res == True: |
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self.load_HMB()
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def load_HMB(self): |
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from App import App |
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|
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App.mainWnd().load_HMB() |
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|
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def keyPressEvent(self, event): |
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from App import App |
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from AppDocData import AppDocData |
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if not self.isSelected(): return |
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|
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if event.key() == Qt.Key_Delete:
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self.transfer.onRemoved.emit(self) |
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elif event.key() == Qt.Key_QuoteLeft:
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self.mouseDoubleClickEvent(event)
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|
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def toSql(self): |
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""" convert valve data to sql query """
|
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import uuid |
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from AppDocData import AppDocData |
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|
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res = [] |
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appDocData = AppDocData.instance() |
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|
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symbolInfo = appDocData.getSymbolByQuery('name', 'Stream Line') |
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dbUid = symbolInfo.uid |
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uid = self.uid
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|
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cols = ['UID', 'Symbols_UID', 'Name'] |
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values = ['?','?', '?'] |
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param = [str(uid), str(dbUid), str(self.stream_no)] |
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sql = 'insert or replace into Components({}) values({})'.format(','.join(cols), ','.join(values)) |
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res.append((sql, tuple(param)))
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|
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# save vertices to database
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index = 1
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for vertex in self._vertices: |
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if index == 1 and self.connectors[0].connectedItem is not None: |
| 466 |
cols = ['UID', 'Components_UID', '[Index]', 'X', 'Y', 'ConnectedItem_UID'] |
| 467 |
values = ['?', '?', '?', '?', '?', '?'] |
| 468 |
param = [str(uuid.uuid4()), str(uid), index, vertex[0], vertex[1], |
| 469 |
str(self.connectors[0].connectedItem.uid)] |
| 470 |
elif index == 4 and self.connectors[1].connectedItem is not None: |
| 471 |
cols = ['UID', 'Components_UID', '[Index]', 'X', 'Y', 'ConnectedItem_UID'] |
| 472 |
values = ['?', '?', '?', '?', '?', '?'] |
| 473 |
param = [str(uuid.uuid4()), str(uid), index, vertex[0], vertex[1], |
| 474 |
str(self.connectors[1].connectedItem.uid)] |
| 475 |
else:
|
| 476 |
cols = ['UID', 'Components_UID', '[Index]', 'X', 'Y'] |
| 477 |
values = ['?', '?', '?', '?', '?'] |
| 478 |
param = [str(uuid.uuid4()), str(uid), index, vertex[0], vertex[1]] |
| 479 |
|
| 480 |
sql = 'insert or replace into Points({}) values({})'.format(','.join(cols), ','.join(values)) |
| 481 |
|
| 482 |
res.append((sql, tuple(param)))
|
| 483 |
index += 1
|
| 484 |
# up to here
|
| 485 |
|
| 486 |
return res
|
| 487 |
|
| 488 |
@staticmethod
|
| 489 |
def fromDatabase(componentInfos): |
| 490 |
from EngineeringConnectorItem import QEngineeringConnectorItem |
| 491 |
from AppDocData import AppDocData |
| 492 |
|
| 493 |
item = None
|
| 494 |
try:
|
| 495 |
app_doc_data = AppDocData.instance() |
| 496 |
|
| 497 |
uid = componentInfos[0][0] #uid@Components |
| 498 |
|
| 499 |
item = QEngineeringStreamlineItem(uid) |
| 500 |
hmb_data = app_doc_data.activeDrawing.hmbTable.get_hmb_data(uid) |
| 501 |
item.stream_no = int(hmb_data.stream_no) if hmb_data else 1 # stream no |
| 502 |
|
| 503 |
pointsUids = [] |
| 504 |
for componentInfo in componentInfos: |
| 505 |
pointsUid = componentInfo[11] # uid@Points |
| 506 |
x = componentInfo[13] # X@Points |
| 507 |
y = componentInfo[14] # Y@Points |
| 508 |
|
| 509 |
pointsUids.append(pointsUid) |
| 510 |
item._vertices.append((x, y)) |
| 511 |
|
| 512 |
connectorItems = [componentInfos[0][15], componentInfos[-1][15]] |
| 513 |
|
| 514 |
item.setVisible(False)
|
| 515 |
item.build_path() |
| 516 |
item.build_connectors(connectorItems, pointsUids) |
| 517 |
|
| 518 |
item.update() |
| 519 |
|
| 520 |
except Exception as ex: |
| 521 |
from App import App |
| 522 |
from AppDocData import MessageType |
| 523 |
|
| 524 |
message = 'error occured({}) in {}:{}'.format(ex, sys.exc_info()[-1].tb_frame.f_code.co_filename, |
| 525 |
sys.exc_info()[-1].tb_lineno)
|
| 526 |
App.mainWnd().addMessage.emit(MessageType.Error, message) |
| 527 |
|
| 528 |
return item
|
| 529 |
|
| 530 |
|
| 531 |
'''
|
| 532 |
@brief The class transfer pyqtSignal Event. Cause Subclass of QGraphicsRectItem can't use pyqtSignal
|
| 533 |
@author Jeongwoo
|
| 534 |
@date 2018.06.18
|
| 535 |
'''
|
| 536 |
|
| 537 |
|
| 538 |
class Transfer(QObject): |
| 539 |
onRemoved = pyqtSignal(QGraphicsItem) |
| 540 |
|
| 541 |
def __init__(self, parent = None): |
| 542 |
QObject.__init__(self, parent)
|
