def initMap(self):
features = json.load(open("Data/world.json",
encoding="utf8")).get("features")
for feature in features:
geometry = feature.get("geometry")
if not geometry:
continue
_type = geometry.get("type")
coordinates = geometry.get("coordinates")
for coordinate in coordinates:
if _type == "Polygon":
polygon = QPolygonF([
QPointF(latitude, -longitude)
for latitude, longitude in coordinate
])
item = QGraphicsPolygonItem(polygon)
item.setPen(QPen(self.borderColor, 0))
item.setBrush(QBrush(self.backgroundColor))
item.setPos(0, 0)
self._scene.addItem(item)
elif _type == "MultiPolygon":
for _coordinate in coordinate:
polygon = QPolygonF([
QPointF(latitude, -longitude)
for latitude, longitude in _coordinate
])
item = QGraphicsPolygonItem(polygon)
item.setPen(QPen(self.borderColor, 0))
item.setBrush(QBrush(self.backgroundColor))
item.setPos(0, 0)
self._scene.addItem(item)
def on_actItem_Polygon_triggered(self): # 添加一个梯形
item = QGraphicsPolygonItem()
points = QPolygonF()
points.append(QPointF(-40, -40))
points.append(QPointF(40, -40))
points.append(QPointF(100, 40))
points.append(QPointF(-100, 40))
item.setPolygon(points)
item.setPos(-50 + (QtCore.qrand() % 100), -50 + (QtCore.qrand() % 100))
item.setFlags(QGraphicsItem.ItemIsMovable | QGraphicsItem.ItemIsSelectable | QGraphicsItem.ItemIsFocusable)
item.setBrush(QBrush(Qt.green))
self.view.frontZ = self.view.frontZ + 1
item.setZValue(self.view.frontZ)
self.view.seqNum = self.view.seqNum + 1
item.setData(self.view.ItemId, self.view.seqNum) # //自定义数据，ItemId键
item.setData(self.view.ItemDesciption, "梯形")
self.scene.addItem(item)
self.scene.clearSelection()
item.setSelected(True)
class Triangle(QGraphicsView):
def __init__(self, x1, y1, x2, y2, x3, y3):
self.x1 = x1
self.y1 = y1
self.x2 = x2
self.y2 = y2
self.x3 = x3
self.y3 = y3
triangle = QtGui.QPolygonF(3)
triangle[0] = QtCore.QPoint(self.x1, self.y1)
triangle[1] = QtCore.QPoint(self.x2, self.y2)
triangle[2] = QtCore.QPoint(self.x3, self.y3)
self.triangle = QGraphicsPolygonItem(triangle)
def draw_triangle(self, scene):
scene.addItem(self.triangle)
def move_triangle(self, m, n):
self.triangle.setPos(m, n)
def rotate_triangle(self, r):
self.triangle.setRotation(r)
def scale_triangle(self, s):
self.triangle.setScale((s + 50) / 100)
def recolor_triangle(self, r, g, b):
self.triangle.setBrush(QColor(r, g, b))
def on_qAction16_triggered(self):
item = QGraphicsPolygonItem()
points = [
QPointF(-40, -40),
QPointF(40, -40),
QPointF(100, 40),
QPointF(-100, 40)
]
item.setPolygon(QPolygonF(points))
item.setBrush(QBrush(Qt.green))
self.__setItemProperties(item, "梯形")
def create_arrow(tile):
item = QGraphicsPolygonItem(qt_drawings.arrow_polygon)
item.setPen(qt_drawings.no_pen)
if tile:
item.setBrush(qt_drawings.cyan_brush if tile.is_frozen else qt_drawings.black_brush)
item.setTransformOriginPoint(qt_drawings.tile_size / 2, qt_drawings.tile_size / 2)
angle = base_scene_reactor.tile_rotation_angles[tile.is_horizontal][tile.is_positive]
item.setRotation(angle)
else:
item.setBrush(qt_drawings.black_brush)
return item
class RPolygon(QObject):
def __init__(self, points, color, line_width):
self._points = [QPointF(p[0], p[1]) for p in points]
self._pos = self._points[0]
super().__init__()
# The underlying QGraphicsPolygonItem
self.polygon = QGraphicsPolygonItem()
self.polygon.setPolygon(QPolygonF(self._points))
self.polygon.setBrush(QtGui.QBrush(color))
pen = QPen()
pen.setWidthF(line_width)
self.polygon.setPen(pen)
self._visible = 1
def x(self):
return self._pos.x()
def y(self):
return self._pos.y()
def points(self):
return self._points
# The following functions are for animation support
@pyqtProperty(QPointF)
def pos(self):
return self._pos
@pos.setter
def pos(self, value):
delta_x = value.x() - self._pos.x()
delta_y = value.y() - self._pos.y()
self._points = [
QPointF(p.x() + delta_x,
p.y() + delta_y) for p in self._points
]
self.polygon.setPolygon(QPolygonF(self._points))
self._pos = value
@pyqtProperty(int)
def visible(self):
return self._visible
@visible.setter
def visible(self, value):
if (value > 0): self.polygon.show()
else: self.polygon.hide()
self._visible = value
def draw_polygons(self):
sf = shapefile.Reader(self.shapefile)
polygons = sf.shapes()
for polygon in polygons:
# convert shapefile geometries into shapely geometries
# to extract the polygons of a multipolygon
polygon = shapely.geometry.shape(polygon)
# if it is a polygon, we use a list to make it iterable
if polygon.geom_type == 'Polygon':
polygon = [polygon]
for land in polygon:
qt_polygon = QPolygonF()
for lon, lat in land.exterior.coords:
px, py = self.to_canvas_coordinates(lon, lat)
if px > 1e+10:
continue
qt_polygon.append(QPointF(px, py))
polygon_item = QGraphicsPolygonItem(qt_polygon)
polygon_item.setBrush(self.land_brush)
polygon_item.setPen(self.land_pen)
polygon_item.setZValue(1)
yield polygon_item
def draw_polygons(self):
sf = shapefile.Reader(self.shapefile)
polygons = sf.shapes()
for polygon in polygons:
# convert shapefile geometries into shapely geometries
# to extract the polygons of a multipolygon
polygon = shapely.geometry.shape(polygon)
# if it is a polygon, we use a list to make it iterable
if polygon.geom_type == 'Polygon':
polygon = [polygon]
for land in polygon:
qt_polygon = QPolygonF()
land = str(land)[10:-2].replace(', ', ',').replace(' ', ',')
coords = land.replace('(', '').replace(')', '').split(',')
for lon, lat in zip(coords[0::2], coords[1::2]):
px, py = self.to_canvas_coordinates(lon, lat)
if px > 1e+10:
continue
qt_polygon.append(QPointF(px, py))
polygon_item = QGraphicsPolygonItem(qt_polygon)
polygon_item.setBrush(self.land_brush)
polygon_item.setPen(self.land_pen)
polygon_item.setZValue(1)
yield polygon_item
def create_element_model(self, gscene):
clut = rgbt.RGBTable(filename='gui/red_blue64.csv',
data_range=[10.0, 100.])
ele_model = ele.ElementModel()
ele_model.elements_from_sequence(self.seq_model)
pen = QPen()
pen.setCosmetic(True)
for e in ele_model.elements:
poly = e.shape()
polygon = QPolygonF()
for p in poly:
polygon.append(QPointF(p[0], p[1]))
gpoly = QGraphicsPolygonItem()
gpoly.setPolygon(polygon)
# set element color based on V-number
gc = float(e.medium.glass_code())
vnbr = round(100.0 * (gc - int(gc)), 3)
ergb = clut.get_color(vnbr)
gpoly.setBrush(QColor(*ergb))
gpoly.setPen(pen)
t = e.tfrm[1]
gpoly.setPos(QPointF(t[2], -t[1]))
gscene.addItem(gpoly)
def create_ray_model(self, gscene, start_surf=1):
tfrms = self.seq_model.compute_global_coords(start_surf)
rayset = self.seq_model.trace_boundary_rays()
start_offset = 0.1 * gscene.sceneRect().width()
if abs(tfrms[0][1][2]) > start_offset:
tfrms[0] = self.seq_model.shift_start_of_rayset(
rayset, start_offset)
pen = QPen()
pen.setCosmetic(True)
for rays in rayset:
poly1 = []
for i, r in enumerate(rays[3][0][0:]):
rot, trns = tfrms[i]
p = rot.dot(r[0]) + trns
# print(i, r[0], rot, trns, p)
poly1.append(QPointF(p[2], -p[1]))
poly2 = []
for i, r in enumerate(rays[4][0][0:]):
rot, trns = tfrms[i]
p = rot.dot(r[0]) + trns
# print(i, r[0], rot, trns, p)
poly2.append(QPointF(p[2], -p[1]))
poly2.reverse()
poly1.extend(poly2)
polygon = QPolygonF()
for p in poly1:
polygon.append(p)
gpoly = QGraphicsPolygonItem()
gpoly.setPolygon(polygon)
gpoly.setBrush(QColor(254, 197, 254, 64)) # magenta, 25%
gpoly.setPen(pen)
gscene.addItem(gpoly)
class NozzlePreviewWidget(QWidget):
def __init__(self):
super().__init__()
self.ui = Ui_NozzlePreview()
self.ui.setupUi(self)
self.brush = QBrush()
self.brush.setStyle(1)
self.scene = QGraphicsScene(self)
self.upper = QGraphicsPolygonItem()
self.lower = QGraphicsPolygonItem()
self.upper.setBrush(self.brush)
self.lower.setBrush(self.brush)
self.scene.addItem(self.upper)
self.scene.addItem(self.lower)
self.ui.tabCrossSection.setScene(self.scene)
self.ui.tabWidget.currentChanged.connect(self.rescale)
def loadNozzle(self, nozzle):
geomAlerts = nozzle.getGeometryErrors()
self.ui.tabAlerts.clear()
for err in geomAlerts:
self.ui.tabAlerts.addItem(err.description)
self.upper.setPolygon(QPolygonF([]))
self.lower.setPolygon(QPolygonF([]))
for alert in geomAlerts:
if alert.level == motorlib.simResult.SimAlertLevel.ERROR:
return
convAngle = radians(nozzle.props['convAngle'].getValue())
throatLen = nozzle.props['throatLength'].getValue()
throatRad = nozzle.props['throat'].getValue() / 2
divAngle = radians(nozzle.props['divAngle'].getValue())
exitRad = nozzle.props['exit'].getValue() / 2
outerRad = 1.25 * exitRad
if QApplication.instance() and QApplication.instance(
).fileManager: # Check if the app exists and has a fm
motor = QApplication.instance().fileManager.getCurrentMotor()
if len(motor.grains) > 0:
outerRad = motor.grains[0].getProperty('diameter') / 2
scale = 100 / nozzle.props['exit'].getValue()
radDiff = exitRad - throatRad
if divAngle != 0:
divLen = radDiff / tan(divAngle)
else:
divLen = 0
if convAngle != 0:
convLen = (outerRad - throatRad) / tan(convAngle)
else:
convLen = 0
upperPoints = [
[throatLen, throatRad],
[0, throatRad],
[-divLen, exitRad],
[-divLen, outerRad],
[throatLen + convLen, outerRad],
]
lower = QPolygonF(
[QPointF(p[0] * scale, p[1] * scale) for p in upperPoints])
upper = QPolygonF(
[QPointF(p[0] * scale, -p[1] * scale) for p in upperPoints])
self.upper.setPolygon(upper)
self.lower.setPolygon(lower)
self.rescale()
def rescale(self):
self.scene.setSceneRect(self.scene.itemsBoundingRect())
self.ui.tabCrossSection.fitInView(self.scene.sceneRect(),
Qt.KeepAspectRatio)
class RelationItem():
''' This represents one relationship on the diagram.
This class creates the arc graphics item and the text graphics item and draws them on the scene.
The RelationInstance class manages reading and writing the relationship to Neo4j
'''
def __init__(self, scene, relationInstance=None):
self.scene = scene
self.model = self.scene.parent.model
self.diagramType = "Instance Relationship"
self.logMsg = None
# self.relationInstance should have been called self.itemInstance to be consistent
# with NodeItem. so we'll set it to none and someday fix this.
self.itemInstance = None
self.relationInstance = relationInstance
self.startNZID = self.relationInstance.startNZID
self.endNZID = self.relationInstance.endNZID
# get the NodeItem objects for the start and end nodes
self.startNode = self.scene.parent.itemDict[self.startNZID]
self.endNode = self.scene.parent.itemDict[self.endNZID]
self.numRels = self.scene.parent.numRels(self.relationInstance.startNZID, self.relationInstance.endNZID)
# print("numRels:{}".format(self.numRels))
self.lineType = None
# print("num rels{}".format(str(self.numRels)))
# initialize the two qgraphicsitems needed to draw a relationship to None
self.IRel = None
self.IRtext = None
self.bunnyEar = None
self.endDot = None
self.arrowHead = None
self.TAline1 = None
self.TAline2 = None
self.debugTriangle = None
self.drawRelationship()
def name(self, ):
return self.relationInstance.NZID
def NZID(self, ):
return self.relationInstance.NZID
def getFormat(self, ):
'''
determine if the rel instance has a template format or should use the project default format
'''
# get the default
self.relFormat = IRelFormat(formatDict=self.model.modelData["IRformat"])
# get a custom template format if there is one
if not self.relationInstance.relTemplate is None:
index, relTemplateDict = self.model.getDictByName(topLevel="Relationship Template",objectName=self.relationInstance.relTemplate)
if not relTemplateDict is None:
self.instanceRelFormatDict = relTemplateDict.get("IRformat", None)
if not self.instanceRelFormatDict is None:
self.relFormat = IRelFormat(formatDict=self.instanceRelFormatDict)
def getNodeId(self):
'''return the rel id for the relationship from the IREL or bunnyear graphic item - which ever it is
'''
if not self.IRel is None:
nodeID = self.IRel.data(NODEID)
elif not self.bunnyEar is None:
nodeID = self.bunnyEar.data(NODEID)
else:
nodeID = None
return nodeID
def clearItem(self, ):
if (not self.IRel is None and not self.IRel.scene() is None):
self.IRel.scene().removeItem(self.IRel)
if (not self.IRtext is None and not self.IRtext.scene() is None):
self.IRtext.scene().removeItem(self.IRtext)
if (not self.bunnyEar is None and not self.bunnyEar.scene() is None):
self.bunnyEar.scene().removeItem(self.bunnyEar)
if (not self.endDot is None and not self.endDot.scene() is None):
self.endDot.scene().removeItem(self.endDot)
if (not self.arrowHead is None and not self.arrowHead.scene() is None):
self.arrowHead.scene().removeItem(self.arrowHead)
if (not self.TAline2 is None and not self.TAline2.scene() is None):
self.TAline2.scene().removeItem(self.TAline2)
if (not self.TAline1 is None and not self.TAline1.scene() is None):
self.TAline1.scene().removeItem(self.TAline1)
# if (not self.debugTriangle is None and not self.debugTriangle.scene() is None):
# self.debugTriangle.scene().removeItem(self.debugTriangle)
def drawIt(self, ):
'''
for consistency, drawIt should be used instead of drawRelationship
'''
self.drawRelationship()
def drawRelationship(self, ):
# relationship is between two different nodes
if self.startNZID != self.endNZID:
# set the line type if it hasn't been determined yet. This happens on first draw
if self.lineType is None:
if self.scene.parent.anyRels(self.relationInstance.startNZID, self.relationInstance.endNZID):
self.lineType = CURVE
else:
self.lineType = STRAIGHT
# now draw the line or arc
if self.lineType == CURVE:
self.drawRel()
else:
self.drawStraightRel()
# relationship is between the same node
if self.startNZID == self.endNZID:
self.drawBunnyEars()
def drawBunnyEars(self, ):
# force the rel instance to update its values in case it has been updated from another diagram or the tree view
self.relationInstance.reloadDictValues()
# get the format in case it changed
self.getFormat()
# if the arc and text graphics items already exist on the scene then delete them
self.clearItem()
# draw the relationship arc
pen = self.relFormat.pen()
brush = self.relFormat.brush()
brush.setColor(QColor(Qt.white))
# create an ellipse like the startNode
x = self.startNode.INode.sceneBoundingRect().center().x()
y = self.startNode.INode.sceneBoundingRect().center().y()
w = self.startNode.INode.sceneBoundingRect().width()/2.0
h = self.startNode.INode.sceneBoundingRect().height()/2.0
myEllipse = Ellipse(x, y, w, h)
# move the bunny ears around the ellipse until we run out of room
startDegree = 360 - (self.numRels * 40)
if startDegree < 40:
startDegree = 40
startPoint = myEllipse.pointFromAngle(radians(startDegree))
endPoint = myEllipse.pointFromAngle(radians(startDegree-35))
lineMidPoint = centerLine (startPoint[0], startPoint[1], endPoint[0], endPoint[1])
lineDist = distanceLine (startPoint[0], startPoint[1], endPoint[0], endPoint[1])
circleRad = lineDist/2.0
self.bunnyEar = QGraphicsEllipseItem(QRectF(lineMidPoint[0]-circleRad,lineMidPoint[1]-circleRad,circleRad*2,circleRad*2), parent=None)
self.bunnyEar.setZValue(RELATIONLAYER)
self.bunnyEar.setBrush(brush)
self.bunnyEar.setPen(pen)
self.bunnyEar.setFlag(QGraphicsItem.ItemIsMovable, True)
self.bunnyEar.setFlag(QGraphicsItem.ItemSendsGeometryChanges, True)
self.bunnyEar.setFlag(QGraphicsItem.ItemIsSelectable, False)
self.bunnyEar.setSelected(False)
# create arrowhead
self.circlex = lineMidPoint[0]
self.circley = lineMidPoint[1]
# self.circleDot = QGraphicsEllipseItem(QRectF(self.circlex-1.5,self.circley-1.5,3, 3), parent=None)
# self.circleDot.setZValue(NODELAYER)
# self.scene.addItem(self.circleDot)
# self.pointDot = QGraphicsEllipseItem(QRectF(endPoint[0]-1.5,endPoint[1]-1.5,3, 3), parent=None)
# self.pointDot.setZValue(NODELAYER)
# self.scene.addItem(self.pointDot)
# compute the arrow base center point
arrowLen = 5 # this is half the distance of the arrowhead base which determines how wide the arrow head is
# compute a point on the arc that is a short distance away from the edge of the ellipse. this is the base of the arrow head
# get the slope of the line from the start point to the end point on the node ellipse
if endPoint[0] == startPoint[0]:
startPoint[0] = startPoint[0] + .001
# slope1 = (startPoint[1] - endPoint[1])/(startPoint[0] - endPoint[0])
slope1 = (endPoint[1] - startPoint[1] )/(endPoint[0] - startPoint[0])
if slope1 == 1.0:
slope1 = 1.001
slope1Squared = slope1 * slope1
perpSlope1 = -1.0 / slope1
perpSlope1Squared = perpSlope1 * perpSlope1
# print("numrels:{} startDegree:{} radius:{} slope:{} perpslope:{}".format(self.numRels, startDegree, circleRad, slope1, perpSlope1))
# now find a point on the line tangent to the point on the bunny ear circle. This is the base of the arrow
# ax = (arrowLen / sqrt(1 + (perpSlope1Squared)))
# ay = ax * perpSlope1
if lineMidPoint[0] < x:
baseX = endPoint[0] - (arrowLen / sqrt(1 + (perpSlope1Squared)))
baseY = endPoint[1] - ((arrowLen / sqrt(1 + (perpSlope1Squared))) * perpSlope1 )
else:
baseX = endPoint[0] + (arrowLen / sqrt(1 + (perpSlope1Squared)))
baseY = endPoint[1] + ((arrowLen / sqrt(1 + (perpSlope1Squared))) * perpSlope1 )
# print("ax:{} ay:{} slope1:{} perslope1:{}".format(ax, ay, slope1, perpSlope1))
# self.anchorDot = QGraphicsEllipseItem(QRectF(baseX-1.5,baseY-1.5,3, 3), parent=None)
# self.anchorDot.setZValue(NODELAYER)
# self.scene.addItem(self.anchorDot)
# get first arrowhead base corner
ab1dx = (arrowLen / sqrt(1 + (slope1Squared)))
ab1dy = ab1dx * slope1
self.b1x = baseX + ab1dx
self.b1y = baseY + ab1dy
# get 2nd arrowhead base corner
ab2dx = (arrowLen / sqrt(1 + (slope1Squared)))
ab2dy = ab2dx * slope1
self.b2x = baseX - ab2dx
self.b2y = baseY - ab2dy
# # calculate the arrowhead points
# cx = self.endNode.INode.sceneBoundingRect().center().x()
# cy = self.endNode.INode.sceneBoundingRect().center().y()
# self.calcArrowHead(QPointF(cx, cy), QPointF( endPoint[0], endPoint[1]), bunnyEars=True)
#create an empty polygon
arrowPolygon = QPolygonF()
# # add arrowhead points
# arrowPolygon.append(QPointF(self.ah1x, self.ah1y))
# arrowPolygon.append(QPointF(endPoint[0], endPoint[1]))
# arrowPolygon.append(QPointF(self.ah2x, self.ah2y))
# add arrowhead points
arrowPolygon.append(QPointF(self.b1x, self.b1y))
arrowPolygon.append(QPointF(endPoint[0], endPoint[1]))
arrowPolygon.append(QPointF(self.b2x, self.b2y))
self.arrowHead = QGraphicsPolygonItem(arrowPolygon, parent=None, )
self.arrowHead.setZValue(RELATIONLAYER)
self.arrowHead.setBrush(brush)
self.arrowHead.setPen(pen)
self.arrowHead.setFlag(QGraphicsItem.ItemIsMovable, True)
self.arrowHead.setFlag(QGraphicsItem.ItemSendsGeometryChanges, True)
self.arrowHead.setFlag(QGraphicsItem.ItemIsSelectable, False)
self.arrowHead.setSelected(False)
# set data in the bunnyEar object
self.bunnyEar.setData(NODEID, self.relationInstance.NZID)
self.bunnyEar.setData(ITEMTYPE, RELINSTANCEARC)
self.scene.addItem(self.bunnyEar)
self.scene.addItem(self.arrowHead)
# calculate position of text
bunnyEllipse = Ellipse(lineMidPoint[0],lineMidPoint[1],circleRad,circleRad)
# use the same midpoint angle as the bunny ear start and end point
bunnyMidPoint = bunnyEllipse.pointFromAngle(radians(startDegree-17.5))
# draw the text
self.drawText(bunnyMidPoint[0], bunnyMidPoint[1], startPoint[0], startPoint[1], endPoint[0], endPoint[1])
# self.anchorDot = QGraphicsEllipseItem(QRectF(bunnyMidPoint[0]-1.5,bunnyMidPoint[1]-1.5,3, 3), parent=None)
# self.anchorDot.setZValue(NODELAYER)
# self.scene.addItem(self.anchorDot)
def drawStraightRel(self):
# print("draw straight rel")
# force the rel instance to update its values in case it has been updated from another diagram or the tree view
self.relationInstance.reloadDictValues()
# get the format in case it changed
self.getFormat()
# if the arc and text graphics items already exist on the scene then delete them
self.clearItem()
# draw the relationship arc
pen = self.relFormat.pen()
brush = self.relFormat.brush()
# get the centerpoint of the end node
cx = self.endNode.INode.sceneBoundingRect().center().x()
cy = self.endNode.INode.sceneBoundingRect().center().y()
# get the start and end points of the line
esx, esy, eex, eey = self.calcLine3()
# create the arc qgraphicsitem
self.IRel = QGraphicsLineItem(esx, esy, eex, eey, parent=None)
arrowLine = self.IRel
# text location
tx = self.IRel.line().pointAt(.5).x()
ty = self.IRel.line().pointAt(.5).y()
# draw the relationship line
pen = self.relFormat.pen()
# configure the lines and add them to the scene
self.IRel.setPen(pen)
self.IRel.setZValue(RELATIONLAYER)
self.IRel.setData(NODEID, self.relationInstance.NZID)
self.IRel.setData(ITEMTYPE, RELINSTANCEARC)
self.IRel.setFlag(QGraphicsItem.ItemIsSelectable, True)
self.scene.addItem(self.IRel)
# line arrowhead
# compute the arrow base center point
arrowLen = 5 # this is half the distance of the arrowhead base which determines how wide the arrow head is
# compute a point on the arc that is a short distance away from the edge of the ellipse. this is the base of the arrow head
ax = self.IRel.line().pointAt(1-(10.0/self.IRel.line().length())).x()
ay = self.IRel.line().pointAt(1-(10.0/self.IRel.line().length())).y()
# compute the arrow base corners
if eex == ax:
ax = ax + .001
# get the slope of the line from the ellipse to the arrowhead base
slope = (eey - ay)/(eex - ax)
if slope == 1.0:
slope = 1.001
# get the perpindicular slope
perpSlope = -1.0 / slope
perpSlopeSquared = perpSlope * perpSlope
# get first arrowhead base corner
ab1dx = (arrowLen / sqrt(1 + (perpSlopeSquared)))
ab1dy = ab1dx * perpSlope
self.b1x = ax + ab1dx
self.b1y = ay + ab1dy
# get 2nd arrowhead base corner
ab2dx = (arrowLen / sqrt(1 + (perpSlopeSquared)))
ab2dy = ab2dx * perpSlope
self.b2x = ax - ab2dx
self.b2y = ay - ab2dy
#create an empty polygon
arrowPolygon = QPolygonF()
# add arrowhead points
arrowPolygon.append(QPointF(self.b1x, self.b1y))
arrowPolygon.append(QPointF(eex, eey))
arrowPolygon.append(QPointF(self.b2x, self.b2y))
self.arrowHead = QGraphicsPolygonItem(arrowPolygon, parent=None, )
self.arrowHead.setZValue(RELATIONLAYER)
self.arrowHead.setBrush(brush)
self.arrowHead.setPen(pen)
self.arrowHead.setFlag(QGraphicsItem.ItemIsMovable, True)
self.arrowHead.setFlag(QGraphicsItem.ItemSendsGeometryChanges, True)
self.arrowHead.setFlag(QGraphicsItem.ItemIsSelectable, False)
self.arrowHead.setSelected(False)
self.scene.addItem(self.arrowHead)
# draw the text
self.drawText(tx, ty, esx, esy, eex, eey)
def drawRel(self, ):
# draw the curved relationship line
# print("draw curve rel")
# force the rel instance to update its values in case it has been updated from another diagram or the tree view
self.relationInstance.reloadDictValues()
# get the format in case it changed
self.getFormat()
# if the arc and text graphics items already exist on the scene then delete them
self.clearItem()
# draw the relationship arc
pen = self.relFormat.pen()
brush = self.relFormat.brush()
# METHOD 1 use ellipse center points
# # get the center points of the qgraphicellipses
# sx = self.startNode.INode.sceneBoundingRect().center().x()
# sy = self.startNode.INode.sceneBoundingRect().center().y()
# ex = self.endNode.INode.sceneBoundingRect().center().x()
# ey = self.endNode.INode.sceneBoundingRect().center().y()
# # if the x's or y's are equal offset one slightly to avoid divide by zero errors
# if sx == ex:
# ex = ex + .001
# if sy == ey:
# ey = ey + .001
# self.IRel = RelArc(parent=None, sx=sx, sy=sy, ex=ex, ey=ey, pen=pen, brush=brush, numRels=self.numRels)
# METHOD 2 use points on the ellipse
# esx, esy, eex, eey = self.calcLine()
# self.IRel = RelArc(parent=None, sx=esx, sy=esy, ex=eex, ey=eey, pen=pen, brush=brush, numRels=self.numRels)
# METHOD 3 use regularly spaced endpoints on the ellipse
# get the centerpoint of the end node
cx = self.endNode.INode.sceneBoundingRect().center().x()
cy = self.endNode.INode.sceneBoundingRect().center().y()
# get the start and end points of the arc
esx, esy, eex, eey = self.calcLine2()
# create the arc qgraphicsitem
self.IRel = RelArc(parent=None, sx=esx, sy=esy, ex=eex, ey=eey, cx=cx, cy=cy, pen=pen, brush=brush, numRels=self.numRels)
#create an empty polygon
arrowPolygon = QPolygonF()
# add arrowhead points
arrowPolygon.append(QPointF(self.IRel.b1x, self.IRel.b1y))
arrowPolygon.append(QPointF(eex, eey))
arrowPolygon.append(QPointF(self.IRel.b2x, self.IRel.b2y))
self.arrowHead = QGraphicsPolygonItem(arrowPolygon, parent=None, )
self.arrowHead.setZValue(RELATIONLAYER)
self.arrowHead.setBrush(brush)
self.arrowHead.setPen(pen)
self.arrowHead.setFlag(QGraphicsItem.ItemIsMovable, True)
self.arrowHead.setFlag(QGraphicsItem.ItemSendsGeometryChanges, True)
self.arrowHead.setFlag(QGraphicsItem.ItemIsSelectable, False)
self.arrowHead.setSelected(False)
# set data in the RelLine object
self.IRel.setData(NODEID, self.relationInstance.NZID)
self.IRel.setData(ITEMTYPE, RELINSTANCEARC)
# add the RelLine object to the scene
self.scene.addItem(self.IRel)
# add arrowhead to the scene
self.scene.addItem(self.arrowHead)
# draw the text
self.drawText(self.IRel.mx, self.IRel.my, esx, esy, eex, eey)
def drawText(self, mx, my, esx, esy, eex, eey):
# mx,my is the center point of the arc
# esx,esy is the start point of the arc
# eex,eey is the end point of the arc
# get the center points of the node qgraphicellipses
sx = self.startNode.INode.sceneBoundingRect().center().x()
sy = self.startNode.INode.sceneBoundingRect().center().y()
sh = self.startNode.INode.sceneBoundingRect().height()
ex = self.endNode.INode.sceneBoundingRect().center().x()
ey = self.endNode.INode.sceneBoundingRect().center().y()
eh = self.endNode.INode.sceneBoundingRect().height()
# if the x's or y's are equal offset one slightly to avoid divide by zero errors
if sx == ex:
ex = ex + .001
if sy == ey:
ey = ey + .001
# draw the text
# self.IRtext = QGraphicsTextItem(self.relationInstance.relName, parent=None)
self.IRtext = RelText(parent=None)
# self.IRtext.setZValue(RELATIONLAYER)
# self.IRtext.setFlag(QGraphicsItem.ItemIsMovable, True)
# self.IRtext.setFlag(QGraphicsItem.ItemIsSelectable, True)
# self.IRtext.setSelected(True)
# self.IRtext.setAcceptHoverEvents(True)
self.IRtext.setData(NODEID, self.relationInstance.NZID)
self.IRtext.setData(ITEMTYPE, RELINSTANCETEXT)
self.IRtext.setHtml(self.genRelHTML())
#calculate rotation angle
adj = abs(esx-eex)
opp = abs(esy-eey)
OOA = opp/adj
rotateAnglerad = (atan(OOA))
rotateAngledeg = degrees(atan(OOA))
# get the height and width of the text graphics item
th = self.IRtext.boundingRect().height()
tw = self.IRtext.boundingRect().width()
# position the relation name text centered on the arc centerpoint
if self.startNZID != self.endNZID:
# esx, esy, eex, eey
if esy >= eey and esx <= eex:
# end node is above and to the right
self.IRtext.setRotation((360 - rotateAngledeg))
xoffset = (tw/2) * cos(rotateAnglerad)
yoffset = (tw/2) * sin(rotateAnglerad)
self.IRtext.setPos(QPointF(mx - xoffset, my + yoffset ))
elif esy <= eey and esx <= eex:
# end node is below and to the right
self.IRtext.setRotation(rotateAngledeg)
xoffset = (tw/2) * (cos(rotateAnglerad))
yoffset = (tw/2) * (sin(rotateAnglerad))
self.IRtext.setPos(QPointF(mx - xoffset, my - yoffset ))
elif esy >= eey and esx >= eex:
# end node is above and to the left
self.IRtext.setRotation(rotateAngledeg)
xoffset = (tw/2) * (cos(rotateAnglerad))
yoffset = (tw/2) * (sin(rotateAnglerad))
self.IRtext.setPos(QPointF(mx - xoffset, my - yoffset ))
elif esy <= eey and esx >= eex:
# end node is below and to the left
self.IRtext.setRotation((360 - rotateAngledeg))
xoffset = (tw/2) * cos(rotateAnglerad)
yoffset = (tw/2) * sin(rotateAnglerad)
self.IRtext.setPos(QPointF(mx - xoffset, my + yoffset ))
# this shouldn't happen
else:
xoffset = (tw/2)
yoffset = (tw/2)
self.IRtext.setPos(QPointF(mx, my ))
# print("tw {} xoffset {} yoffset {} angle {}".format(tw, xoffset, yoffset, rotateAngledeg))
elif self.startNZID == self.endNZID:
if mx > sx:
self.IRtext.setPos(QPointF(mx, my - (th) ))
if mx < sx:
self.IRtext.setPos(QPointF(mx - tw, my - (th) ))
else:
# this shouldn't happen
self.IRtext.setPos(QPointF(mx, my ))
self.scene.addItem(self.IRtext)
def updateText(self, ):
# force the node instance to update its values in case it has been updated from another diagram or the tree view
self.relationInstance.reloadDictValues()
# self.IRtext.setPlainText(self.relationInstance.relName)
self.IRtext.setHtml(self.genRelHTML())
def genRelHTML(self):
'''generate html to display the relationship type
'''
prefix = '<html><body>'
suffix = "</body></html>"
myHTML = ('{}<p><font size="1"> [{}]</font></p>{}'.format(prefix, self.relationInstance.relName, suffix))
return myHTML
# def calcLine(self, ):
# '''calculate the points on the two ellipses to draw a straight line through their centers'''
# self.startNodeX = self.startNode.INode.sceneBoundingRect().center().x()
# self.startNodeY = self.startNode.INode.sceneBoundingRect().center().y()
# self.endNodeX = self.endNode.INode.sceneBoundingRect().center().x()
# self.endNodeY = self.endNode.INode.sceneBoundingRect().center().y()
#
# self.distanceX = abs(self.startNodeX - self.endNodeX) + .001
# self.distanceY = abs(self.startNodeY - self.endNodeY) + .001
# temp = (pow(self.distanceX,2) + pow(self.distanceY,2)) - (2 * self.distanceX * self.distanceY * cos(radians(90)))
# self.distanceXY = sqrt(temp)
# a = self.distanceX
# b = self.distanceY
# c = self.distanceXY
## angA = angle(a,b,c)
## angB = angle(b,c,a)
# angC = angleDegrees(c,a,b)
#
# if self.endNodeX == self.startNodeX:
# self.endNodeX = self.endNodeX + .001
# if self.endNodeY == self.startNodeY:
# self.endNodeY = self.endNodeY + .001
#
# if self.endNodeX > self.startNodeX and self.endNodeY > self.startNodeY:
# startangle = angC
# endangle = 180 + angC
# elif self.endNodeX < self.startNodeX and self.endNodeY > self.startNodeY:
# startangle = 180 - angC
# endangle = 360 - angC
# elif self.endNodeX < self.startNodeX and self.endNodeY < self.startNodeY:
# startangle = 180 + angC
# endangle = angC
# elif self.endNodeX > self.startNodeX and self.endNodeY < self.startNodeY:
# startangle = 360 - angC
# endangle = 180 - angC
#
# #print("angA: {} angleB: {} angleC: {} startangle: {}".format(angA, angB, angC, startangle))
# aa = self.startNode.INode.boundingRect().width()/2.0
# bb = self.startNode.INode.boundingRect().height()/2.0
# sn = Ellipse(self.startNodeX, self.startNodeY, aa, bb)
# sx, sy = sn.pointFromAngle(radians(startangle))
# cc = self.endNode.INode.boundingRect().width()/2.0
# dd = self.endNode.INode.boundingRect().height()/2.0
# en = Ellipse(self.endNodeX, self.endNodeY, cc, dd) #need to calc width/height of end node.
# ex, ey = en.pointFromAngle(radians(endangle))
# #print("sx {} - sy {} - ex {} - ey {}".format(sx,sy,ex,sy))
# return sx, sy, ex, ey
def calcLine2(self, ):
'''calculate the point on the start and end node ellipse for an arc
'''
# get centerpoints of the two nodes
self.startNodeX = self.startNode.INode.sceneBoundingRect().center().x()
self.startNodeY = self.startNode.INode.sceneBoundingRect().center().y()
self.endNodeX = self.endNode.INode.sceneBoundingRect().center().x()
self.endNodeY = self.endNode.INode.sceneBoundingRect().center().y()
self.distanceX = abs(self.startNodeX - self.endNodeX) + .001
self.distanceY = abs(self.startNodeY - self.endNodeY) + .001
temp = (pow(self.distanceX,2) + pow(self.distanceY,2)) - (2 * self.distanceX * self.distanceY * cos(radians(90)))
self.distanceXY = sqrt(temp)
a = self.distanceX
b = self.distanceY
c = self.distanceXY
# angA = angle(a,b,c)
# angB = angle(b,c,a)
angC = angleDegrees(c,a,b)
# print("angC {}".format(angC))
if self.endNodeX == self.startNodeX:
self.endNodeX = self.endNodeX + .001
if self.endNodeY == self.startNodeY:
self.endNodeY = self.endNodeY + .001
# adjust starting and ending points based on the number of rels between the node, if more than 7 in the same direction just start stacking them one on top of the other.
if self.numRels > 6:
adjustDegree = (7) * 10
else:
adjustDegree = (self.numRels+1) * 10
if self.endNodeX > self.startNodeX and self.endNodeY > self.startNodeY:
startangle = angC - adjustDegree
endangle = 180 + angC + adjustDegree
elif self.endNodeX < self.startNodeX and self.endNodeY > self.startNodeY:
startangle = 180 - angC - adjustDegree
endangle = 360 - angC + adjustDegree
elif self.endNodeX < self.startNodeX and self.endNodeY < self.startNodeY:
startangle = 180 + angC - adjustDegree
endangle = angC + adjustDegree
elif self.endNodeX > self.startNodeX and self.endNodeY < self.startNodeY:
startangle = 360 - angC - adjustDegree
endangle = 180 - angC + adjustDegree
# print("adjust: {}startangle: {} endangle: {}".format(adjustDegree, startangle, endangle))
aa = self.startNode.INode.boundingRect().width()/2.0
bb = self.startNode.INode.boundingRect().height()/2.0
sn = Ellipse(self.startNodeX, self.startNodeY, aa, bb)
sx, sy = sn.pointFromAngle(radians(startangle))
cc = self.endNode.INode.boundingRect().width()/2.0
dd = self.endNode.INode.boundingRect().height()/2.0
en = Ellipse(self.endNodeX, self.endNodeY, cc, dd) #need to calc width/height of end node.
ex, ey = en.pointFromAngle(radians(endangle))
#print("sx {} - sy {} - ex {} - ey {}".format(sx,sy,ex,sy))
return sx, sy, ex, ey
def calcLine3(self, ):
'''calculate the point on the start and end node ellipse for a straight line
'''
# get centerpoints of the two nodes
self.startNodeX = self.startNode.INode.sceneBoundingRect().center().x()
self.startNodeY = self.startNode.INode.sceneBoundingRect().center().y()
self.endNodeX = self.endNode.INode.sceneBoundingRect().center().x()
self.endNodeY = self.endNode.INode.sceneBoundingRect().center().y()
self.distanceX = abs(self.startNodeX - self.endNodeX) + .001
self.distanceY = abs(self.startNodeY - self.endNodeY) + .001
temp = (pow(self.distanceX,2) + pow(self.distanceY,2)) - (2 * self.distanceX * self.distanceY * cos(radians(90)))
self.distanceXY = sqrt(temp)
a = self.distanceX
b = self.distanceY
c = self.distanceXY
# angA = angle(a,b,c)
# angB = angle(b,c,a)
angC = angleDegrees(c,a,b)
# print("angC {}".format(angC))
if self.endNodeX == self.startNodeX:
self.endNodeX = self.endNodeX + .001
if self.endNodeY == self.startNodeY:
self.endNodeY = self.endNodeY + .001
# # adjust starting and ending points based on the number of rels between the node, if more than 7 in the same direction just start stacking them one on top of the other.
# if self.numRels > 6:
# adjustDegree = (7) * 10
# else:
# adjustDegree = (self.numRels+1) * 10
adjustDegree = 0
if self.endNodeX > self.startNodeX and self.endNodeY > self.startNodeY:
startangle = angC - adjustDegree
endangle = 180 + angC + adjustDegree
elif self.endNodeX < self.startNodeX and self.endNodeY > self.startNodeY:
startangle = 180 - angC - adjustDegree
endangle = 360 - angC + adjustDegree
elif self.endNodeX < self.startNodeX and self.endNodeY < self.startNodeY:
startangle = 180 + angC - adjustDegree
endangle = angC + adjustDegree
elif self.endNodeX > self.startNodeX and self.endNodeY < self.startNodeY:
startangle = 360 - angC - adjustDegree
endangle = 180 - angC + adjustDegree
# print("adjust: {}startangle: {} endangle: {}".format(adjustDegree, startangle, endangle))
aa = self.startNode.INode.boundingRect().width()/2.0
bb = self.startNode.INode.boundingRect().height()/2.0
sn = Ellipse(self.startNodeX, self.startNodeY, aa, bb)
sx, sy = sn.pointFromAngle(radians(startangle))
cc = self.endNode.INode.boundingRect().width()/2.0
dd = self.endNode.INode.boundingRect().height()/2.0
en = Ellipse(self.endNodeX, self.endNodeY, cc, dd) #need to calc width/height of end node.
ex, ey = en.pointFromAngle(radians(endangle))
#print("sx {} - sy {} - ex {} - ey {}".format(sx,sy,ex,sy))
return sx, sy, ex, ey
# def moveRelationshipLine(self, ):
# self.drawRelationship()
def getObjectDict(self, ):
objectDict = {}
objectDict["NZID"] = self.relationInstance.NZID
objectDict["diagramType"] = self.diagramType
return objectDict
class EdgeItem(GraphItem):
_qt_pen_styles = {
'dashed': Qt.DashLine,
'dotted': Qt.DotLine,
'solid': Qt.SolidLine,
}
def __init__(self,
highlight_level,
spline,
label_center,
label,
from_node,
to_node,
parent=None,
penwidth=1,
edge_color=None,
style='solid'):
super(EdgeItem, self).__init__(highlight_level, parent)
self.from_node = from_node
self.from_node.add_outgoing_edge(self)
self.to_node = to_node
self.to_node.add_incoming_edge(self)
self._default_edge_color = self._COLOR_BLACK
if edge_color is not None:
self._default_edge_color = edge_color
self._default_text_color = self._COLOR_BLACK
self._default_color = self._COLOR_BLACK
self._text_brush = QBrush(self._default_color)
self._shape_brush = QBrush(self._default_color)
if style in ['dashed', 'dotted']:
self._shape_brush = QBrush(Qt.transparent)
self._label_pen = QPen()
self._label_pen.setColor(self._default_text_color)
self._label_pen.setJoinStyle(Qt.RoundJoin)
self._edge_pen = QPen(self._label_pen)
self._edge_pen.setWidth(penwidth)
self._edge_pen.setColor(self._default_edge_color)
self._edge_pen.setStyle(self._qt_pen_styles.get(style, Qt.SolidLine))
self._sibling_edges = set()
self._label = None
if label is not None:
self._label = QGraphicsSimpleTextItem(label)
self._label.setFont(GraphItem._LABEL_FONT)
label_rect = self._label.boundingRect()
label_rect.moveCenter(label_center)
self._label.setPos(label_rect.x(), label_rect.y())
self._label.hoverEnterEvent = self._handle_hoverEnterEvent
self._label.hoverLeaveEvent = self._handle_hoverLeaveEvent
self._label.setAcceptHoverEvents(True)
# spline specification according to
# http://www.graphviz.org/doc/info/attrs.html#k:splineType
coordinates = spline.split(' ')
# extract optional end_point
end_point = None
if (coordinates[0].startswith('e,')):
parts = coordinates.pop(0)[2:].split(',')
end_point = QPointF(float(parts[0]), -float(parts[1]))
# extract optional start_point
if (coordinates[0].startswith('s,')):
parts = coordinates.pop(0).split(',')
# first point
parts = coordinates.pop(0).split(',')
point = QPointF(float(parts[0]), -float(parts[1]))
path = QPainterPath(point)
while len(coordinates) > 2:
# extract triple of points for a cubic spline
parts = coordinates.pop(0).split(',')
point1 = QPointF(float(parts[0]), -float(parts[1]))
parts = coordinates.pop(0).split(',')
point2 = QPointF(float(parts[0]), -float(parts[1]))
parts = coordinates.pop(0).split(',')
point3 = QPointF(float(parts[0]), -float(parts[1]))
path.cubicTo(point1, point2, point3)
self._arrow = None
if end_point is not None:
# draw arrow
self._arrow = QGraphicsPolygonItem()
polygon = QPolygonF()
polygon.append(point3)
offset = QPointF(end_point - point3)
corner1 = QPointF(-offset.y(), offset.x()) * 0.35
corner2 = QPointF(offset.y(), -offset.x()) * 0.35
polygon.append(point3 + corner1)
polygon.append(end_point)
polygon.append(point3 + corner2)
self._arrow.setPolygon(polygon)
self._arrow.hoverEnterEvent = self._handle_hoverEnterEvent
self._arrow.hoverLeaveEvent = self._handle_hoverLeaveEvent
self._arrow.setAcceptHoverEvents(True)
self._path = QGraphicsPathItem(parent)
self._path.setPath(path)
self.addToGroup(self._path)
self.set_node_color()
self.set_label_color()
def add_to_scene(self, scene):
scene.addItem(self)
if self._label is not None:
scene.addItem(self._label)
if self._arrow is not None:
scene.addItem(self._arrow)
def setToolTip(self, tool_tip):
super(EdgeItem, self).setToolTip(tool_tip)
if self._label is not None:
self._label.setToolTip(tool_tip)
if self._arrow is not None:
self._arrow.setToolTip(tool_tip)
def add_sibling_edge(self, edge):
self._sibling_edges.add(edge)
def set_node_color(self, color=None):
if color is None:
self._label_pen.setColor(self._default_text_color)
self._text_brush.setColor(self._default_color)
if self._shape_brush.isOpaque():
self._shape_brush.setColor(self._default_edge_color)
self._edge_pen.setColor(self._default_edge_color)
else:
self._label_pen.setColor(color)
self._text_brush.setColor(color)
if self._shape_brush.isOpaque():
self._shape_brush.setColor(color)
self._edge_pen.setColor(color)
self._path.setPen(self._edge_pen)
if self._arrow is not None:
self._arrow.setBrush(self._shape_brush)
self._arrow.setPen(self._edge_pen)
def set_label_color(self, color=None):
if color is None:
self._label_pen.setColor(self._default_text_color)
else:
self._label_pen.setColor(color)
if self._label is not None:
self._label.setBrush(self._text_brush)
self._label.setPen(self._label_pen)
def _handle_hoverEnterEvent(self, event):
# hovered edge item in red
self.set_node_color(self._COLOR_RED)
self.set_label_color(self._COLOR_RED)
if self._highlight_level > 1:
if self.from_node != self.to_node:
# from-node in blue
self.from_node.set_node_color(self._COLOR_BLUE)
# to-node in green
self.to_node.set_node_color(self._COLOR_GREEN)
else:
# from-node/in-node in teal
self.from_node.set_node_color(self._COLOR_TEAL)
self.to_node.set_node_color(self._COLOR_TEAL)
if self._highlight_level > 2:
# sibling edges in orange
for sibling_edge in self._sibling_edges:
sibling_edge.set_node_color(self._COLOR_ORANGE)
def _handle_hoverLeaveEvent(self, event):
self.set_node_color()
self.set_label_color()
if self._highlight_level > 1:
self.from_node.set_node_color()
self.to_node.set_node_color()
if self._highlight_level > 2:
for sibling_edge in self._sibling_edges:
sibling_edge.set_node_color()
class CallOut():
''' This represents a callouton the diagram
This class creates a text item and then surrounds it with a polygon that is a rectangle
with a pointer to another object on the diagram.
This can be used by hover over functions or be displayed as a part of a node or relationship
'''
def __init__(self, scene, text, anchorPoint, diagramType, format):
self.scene = scene
self.model = self.scene.parent.model
self.text = text
self.anchorPoint = anchorPoint
self.diagramType = diagramType
self.format = format
# initialize the two qgraphicsitems needed to draw a relationship to None
self.itemText = None
self.itemPolygon = None
self.drawIt
def name(self, ):
return "no name"
def NZID(self, ):
return None
def clearItem(self, ):
if (not self.itemText is None and not self.itemText.scene() is None):
self.itemText.scene().removeItem(self.itemText)
if (not self.itemPolygon is None
and not self.itemPolygon.scene() is None):
self.itemPolygon.scene().removeItem(self.itemPolygon)
def drawIt(self, ):
'''
draw the callout
'''
# if the polygon and text graphics items already exist on the scene then delete them
self.clearItem()
# draw the relationship arc
pen = self.format.pen()
brush = self.format.brush()
# create text box
# draw the text
self.itemText = QGraphicsTextItem(self.relationInstance.relName,
parent=None)
self.itemText.setZValue(CALLOUTLAYER)
self.itemText.setFlag(QGraphicsItem.ItemIsMovable, True)
self.itemText.setFlag(QGraphicsItem.ItemIsSelectable, True)
self.itemText.setSelected(False)
self.itemText.setData(NODEID, self.relationInstance.NZID)
self.itemText.setData(ITEMTYPE, CALLOUT)
self.itemText.setHtml(self.genTextHTML())
# set the position of the text
self.itemText.setPos(self.anchorPoint)
# get the height and width of the text graphics item
th = self.IRtext.boundingRect().height()
tw = self.IRtext.boundingRect().width()
#create an empty polygon
arrowPolygon = QPolygonF()
# add callout points
arrowPolygon.append(self.anchorPoint)
arrowPolygon.append(
QPointF(self.anchorPoint.x() + tw, self.anchorPoint.y()))
arrowPolygon.append(
QPointF(self.anchorPoint.x() + tw, self.anchorPoint.y()))
arrowPolygon.append(
QPointF(self.anchorPoint.x() + tw,
self.anchorPoint.y() + th))
arrowPolygon.append(
QPointF(self.anchorPoint.x(),
self.anchorPoint.y() + th))
self.itemPolygon = QGraphicsPolygonItem(
arrowPolygon,
parent=None,
)
self.itemPolygon.setZValue(CALLOUTLAYER)
self.itemPolygon.setBrush(brush)
self.itemPolygon.setPen(pen)
self.itemPolygon.setFlag(QGraphicsItem.ItemIsMovable, True)
self.itemPolygon.setFlag(QGraphicsItem.ItemSendsGeometryChanges, True)
self.itemPolygon.setFlag(QGraphicsItem.ItemIsSelectable, False)
self.itemPolygon.setSelected(False)
# set data in the RelLine object
self.IRel.setData(NODEID, self.relationInstance.NZID)
self.IRel.setData(ITEMTYPE, RELINSTANCEARC)
# add the polygon object to the scene
self.scene.addItem(self.itemPolygon)
# add text to the scene
self.scene.addItem(self.itemText)
def updateText(self, ):
# # force the node instance to update its values in case it has been updated from another diagram or the tree view
# self.relationInstance.reloadDictValues()
# self.IRtext.setPlainText(self.relationInstance.relName)
self.itemText.setHtml(self.genTextHTML())
def genTextHTML(self):
'''generate html to display the text
'''
prefix = '<html><body>'
suffix = "</body></html>"
myHTML = ('{}<p><font size="1"> [{}]</font></p>{}'.format(
prefix, self.text, suffix))
return myHTML
def moveIt(self, ):
self.drawIt()
class VesselPositionSystem(QDialog, Ui_VesselPosSystem):
def __init__(self, config, parent=None):
super(VesselPositionSystem, self).__init__(parent)
self.setupUi(self)
self.setWindowTitle("Vessel Position System")
self.config = config
# Set maximum and minimum values
self.vrp_x_offset_doubleSpinBox.setMaximum(500.0)
self.vrp_y_offset_doubleSpinBox.setMaximum(500.0)
self.gps_x_offset_doubleSpinBox.setMaximum(500.0)
self.gps_y_offset_doubleSpinBox.setMaximum(500.0)
self.vrp_x_offset_doubleSpinBox.setMinimum(-500.0)
self.vrp_y_offset_doubleSpinBox.setMinimum(-500.0)
self.gps_y_offset_doubleSpinBox.setMinimum(-500.0)
self.gps_x_offset_doubleSpinBox.setMinimum(-500.0)
self.vessel_length_doubleSpinBox.setMinimum(1.0)
self.vessel_width_doubleSpinBox.setMinimum(1.0)
# set config values
self.set_spinbox_value(self.vessel_length_doubleSpinBox,
"vessel_length")
self.set_spinbox_value(self.vessel_width_doubleSpinBox, "vessel_width")
self.set_spinbox_value(self.vrp_x_offset_doubleSpinBox, 'vrp_offset_x')
self.set_spinbox_value(self.vrp_y_offset_doubleSpinBox, 'vrp_offset_y')
self.set_spinbox_value(self.gps_x_offset_doubleSpinBox, 'gps_offset_x')
self.set_spinbox_value(self.gps_y_offset_doubleSpinBox, 'gps_offset_y')
self.set_spinbox_value(self.gps_heading_doubleSpinBox,
'gps_offset_heading')
# connect spinbox
self.vessel_length_doubleSpinBox.valueChanged.connect(
self.print_vessel)
self.vessel_width_doubleSpinBox.valueChanged.connect(self.print_vessel)
self.vrp_x_offset_doubleSpinBox.valueChanged.connect(self.print_vessel)
self.vrp_y_offset_doubleSpinBox.valueChanged.connect(self.print_vessel)
self.gps_x_offset_doubleSpinBox.valueChanged.connect(self.print_vessel)
self.gps_y_offset_doubleSpinBox.valueChanged.connect(self.print_vessel)
self.gps_heading_doubleSpinBox.valueChanged.connect(self.print_vessel)
if util.find_spec('usblcontroller') is not None:
self.usbl_x_offset_doubleSpinBox.setMaximum(500.0)
self.usbl_x_offset_doubleSpinBox.setMinimum(-500.0)
self.set_spinbox_value(self.usbl_x_offset_doubleSpinBox,
'usbl_offset_x')
self.usbl_y_offset_doubleSpinBox.setMaximum(500.0)
self.usbl_y_offset_doubleSpinBox.setMinimum(-500.0)
self.set_spinbox_value(self.usbl_y_offset_doubleSpinBox,
'usbl_offset_y')
self.set_spinbox_value(self.usbl_z_offset_doubleSpinBox,
'usbl_offset_z')
self.set_spinbox_value(self.usbl_heading_doubleSpinBox,
'usbl_offset_heading')
self.usbl_x_offset_doubleSpinBox.valueChanged.connect(
self.print_vessel)
self.usbl_y_offset_doubleSpinBox.valueChanged.connect(
self.print_vessel)
self.usbl_z_offset_doubleSpinBox.valueChanged.connect(
self.print_vessel)
self.usbl_heading_doubleSpinBox.valueChanged.connect(
self.print_vessel)
else:
self.hide_widgets_on_layout(self.usbl_gridLayout)
# connect accept button
self.buttonBox.accepted.connect(self.on_accept)
# set top scene
self.top_scene = QGraphicsScene(self.top_graphicsView)
self.top_graphicsView.setScene(self.top_scene)
self.side_scene = QGraphicsScene(self.side_graphicsView)
self.side_graphicsView.setScene(self.side_scene)
def hide_widgets_on_layout(self, layout):
"""
Hide all widgets from layout
:param layout: a layout
"""
for i in reversed(range(layout.count())):
item = layout.takeAt(i)
widget = item.widget()
if widget is not None:
widget.hide()
else:
self.hide_elements(item.layout())
def set_spinbox_value(self, spinbox, value):
try:
spinbox.setValue(self.config.csettings[value])
except:
spinbox.setValue(0.0)
def print_vessel(self):
"""
printvessel draw vessel, gps, usbl and vessel reference point on a qgraphicsscene
"""
self.print_top_view()
self.print_side_view()
def print_top_view(self):
"""
draw draw vessel, gps, usbl and vessel reference point on a top_graphicsView
"""
# clear previous scene
self.top_scene.clear()
self.top_graphicsView.viewport().update()
# get vessel spinbox values
v_width = self.vessel_width_doubleSpinBox.value()
v_length = self.vessel_length_doubleSpinBox.value()
vrp_x_on_vessel = self.vrp_x_offset_doubleSpinBox.value()
vrp_y_on_vessel = self.vrp_y_offset_doubleSpinBox.value()
gps_x_on_vessel = self.gps_x_offset_doubleSpinBox.value()
gps_y_on_vessel = self.gps_y_offset_doubleSpinBox.value()
if util.find_spec('usblcontroller') is not None:
usbl_x_on_vessel = self.usbl_x_offset_doubleSpinBox.value()
usbl_y_on_vessel = self.usbl_y_offset_doubleSpinBox.value()
else:
usbl_x_on_vessel = 0
usbl_y_on_vessel = 0
# get width and height from view
w_max = self.top_graphicsView.width()
h_max = self.top_graphicsView.height()
# set max
if v_width > v_length:
max_pix = v_width
else:
max_pix = v_length
# set pixel ratio
if w_max < h_max:
pix_ratio = (w_max - 20) / max_pix
else:
pix_ratio = (h_max - 20) / max_pix
# set the size of the vessel
vessel = QPolygonF([
QPointF(pix_ratio * v_width / 2, 0),
QPointF(pix_ratio * v_width, pix_ratio * v_length / 4),
QPointF(pix_ratio * v_width, pix_ratio * v_length),
QPointF(0, pix_ratio * v_length),
QPointF(0, pix_ratio * v_length / 4)
])
self.item = QGraphicsPolygonItem(vessel)
# set brown color
self.item.setBrush(QColor(210, 180, 140))
x_origin_scene = (pix_ratio * v_width / 2)
y_origin_scene = (pix_ratio * v_length / 2)
# coordinate system
line_x_coord = QGraphicsLineItem(x_origin_scene, 0, x_origin_scene,
y_origin_scene)
line_y_coord = QGraphicsLineItem(x_origin_scene, y_origin_scene,
pix_ratio * v_width, y_origin_scene)
x_label = QGraphicsSimpleTextItem("X", line_x_coord)
x_label.setPos(x_origin_scene - 10, 0 + 10)
y_label = QGraphicsSimpleTextItem("Y", line_y_coord)
y_label.setPos(pix_ratio * v_width - 20, y_origin_scene)
x_origin_scene += vrp_y_on_vessel * pix_ratio
y_origin_scene += -vrp_x_on_vessel * pix_ratio
# draw origin point
origin = QGraphicsEllipseItem(x_origin_scene - 10, y_origin_scene - 10,
20, 20)
origin.setBrush(Qt.white)
line_one_origin = QGraphicsLineItem(x_origin_scene - 10,
y_origin_scene,
x_origin_scene + 10,
y_origin_scene)
line_two_origin = QGraphicsLineItem(x_origin_scene,
y_origin_scene - 10,
x_origin_scene,
y_origin_scene + 10)
# gps position
gps_circle = QGraphicsEllipseItem(
x_origin_scene - 10 + gps_y_on_vessel * pix_ratio,
y_origin_scene - 10 - gps_x_on_vessel * pix_ratio, 20, 20)
gps_circle.setBrush(QColor(143, 188, 143))
line_one_gps = QGraphicsLineItem(
x_origin_scene - 10 + gps_y_on_vessel * pix_ratio,
y_origin_scene - gps_x_on_vessel * pix_ratio,
x_origin_scene + 10 + gps_y_on_vessel * pix_ratio,
y_origin_scene - gps_x_on_vessel * pix_ratio)
line_two_gps = QGraphicsLineItem(
x_origin_scene + gps_y_on_vessel * pix_ratio,
y_origin_scene - 10 - gps_x_on_vessel * pix_ratio,
x_origin_scene + gps_y_on_vessel * pix_ratio,
y_origin_scene + 10 - gps_x_on_vessel * pix_ratio)
# gps label
gps_label = QGraphicsSimpleTextItem("GPS", gps_circle)
gps_label.setPos(x_origin_scene - 10 + gps_y_on_vessel * pix_ratio,
y_origin_scene + 10 - gps_x_on_vessel * pix_ratio)
if util.find_spec('usblcontroller') is not None:
# usbl position
usbl_circle = QGraphicsEllipseItem(
x_origin_scene - 10 + usbl_y_on_vessel * pix_ratio,
y_origin_scene - 10 - usbl_x_on_vessel * pix_ratio, 20, 20)
usbl_circle.setBrush(QColor(255, 99, 71))
line_one_usbl = QGraphicsLineItem(
x_origin_scene - 10 + usbl_y_on_vessel * pix_ratio,
y_origin_scene - usbl_x_on_vessel * pix_ratio,
x_origin_scene + 10 + usbl_y_on_vessel * pix_ratio,
y_origin_scene - usbl_x_on_vessel * pix_ratio)
line_two_usbl = QGraphicsLineItem(
x_origin_scene + usbl_y_on_vessel * pix_ratio,
y_origin_scene - 10 - usbl_x_on_vessel * pix_ratio,
x_origin_scene + usbl_y_on_vessel * pix_ratio,
y_origin_scene + 10 - usbl_x_on_vessel * pix_ratio)
# usbl label
usbl_label = QGraphicsSimpleTextItem("USBL", usbl_circle)
if usbl_x_on_vessel == gps_x_on_vessel and usbl_y_on_vessel == gps_y_on_vessel:
usbl_label.setPos(
x_origin_scene - 10 + usbl_y_on_vessel * pix_ratio,
y_origin_scene - 30 - usbl_x_on_vessel * pix_ratio)
else:
usbl_label.setPos(
x_origin_scene - 10 + usbl_y_on_vessel * pix_ratio,
y_origin_scene + 10 - usbl_x_on_vessel * pix_ratio)
origin_label = QGraphicsSimpleTextItem("VRP", origin)
if (usbl_x_on_vessel == 0
and usbl_y_on_vessel == 0) or (gps_x_on_vessel == 0
and gps_y_on_vessel == 0):
origin_label.setPos(x_origin_scene + 10, y_origin_scene - 10)
else:
origin_label.setPos(x_origin_scene - 10, y_origin_scene + 10)
# fit view/scene
self.top_graphicsView.setSceneRect(0, 0, pix_ratio * v_width,
pix_ratio * v_length)
# add vessel to the scene
self.top_graphicsView.scene().addItem(self.item)
# add origin to the scene
self.top_graphicsView.scene().addItem(origin)
self.top_graphicsView.scene().addItem(line_one_origin)
self.top_graphicsView.scene().addItem(line_two_origin)
# add gps
self.top_graphicsView.scene().addItem(gps_circle)
self.top_graphicsView.scene().addItem(line_one_gps)
self.top_graphicsView.scene().addItem(line_two_gps)
if util.find_spec('usblcontroller') is not None:
# add usbl
self.top_graphicsView.scene().addItem(usbl_circle)
self.top_graphicsView.scene().addItem(line_one_usbl)
self.top_graphicsView.scene().addItem(line_two_usbl)
# add coord system
self.top_graphicsView.scene().addItem(line_x_coord)
self.top_graphicsView.scene().addItem(line_y_coord)
# set background
self.top_scene.setBackgroundBrush(QColor(204, 229, 255))
# set antialiasing renderhint
self.top_graphicsView.setRenderHint(QPainter.Antialiasing)
def print_side_view(self):
"""
draw vessel, usbl and vessel reference point on a side_graphicsView
"""
# clear previous scene
self.side_scene.clear()
self.side_graphicsView.viewport().update()
# get vessel spinbox values
v_length = self.vessel_length_doubleSpinBox.value()
v_height = v_length / 3
vrp_x_on_vessel = self.vrp_x_offset_doubleSpinBox.value()
if util.find_spec('usblcontroller') is not None:
usbl_x_on_vessel = self.usbl_x_offset_doubleSpinBox.value()
usbl_z_on_vessel = self.usbl_z_offset_doubleSpinBox.value()
else:
usbl_x_on_vessel = 0
usbl_z_on_vessel = 0
# get width and height from view
w_max = self.side_graphicsView.width()
h_max = self.side_graphicsView.height()
# set max
if v_height > v_length:
max_pix = v_height
else:
max_pix = v_length
# set pixel ratio
if w_max < h_max:
pix_ratio = (w_max - 20) / max_pix
else:
pix_ratio = (h_max - 20) / max_pix
# set the size of the vessel
vessel = QPolygonF([
QPointF(0, 0),
QPointF(pix_ratio * v_length, 0),
QPointF(pix_ratio * v_length * 3 / 4, pix_ratio * v_height),
QPointF(0, pix_ratio * v_height)
])
self.item = QGraphicsPolygonItem(vessel)
# set brown color
self.item.setBrush(QColor(210, 180, 140))
x_origin_scene = (pix_ratio * v_length / 2)
y_origin_scene = (pix_ratio * v_height / 2)
# coordinate system
line_x_coord = QGraphicsLineItem(
x_origin_scene, y_origin_scene, pix_ratio * v_length -
(pix_ratio * v_length - pix_ratio * v_length * 3 / 4) / 2,
y_origin_scene)
line_z_coord = QGraphicsLineItem(x_origin_scene, y_origin_scene,
x_origin_scene, pix_ratio * v_height)
x_label = QGraphicsSimpleTextItem("X", line_x_coord)
x_label.setPos(
pix_ratio * v_length -
(pix_ratio * v_length - pix_ratio * v_length * 3 / 4) / 2 - 30,
y_origin_scene)
z_label = QGraphicsSimpleTextItem("Z", line_z_coord)
z_label.setPos(x_origin_scene - 20, pix_ratio * v_height - 20)
# set sea background
sea_polygon = QPolygonF([
QPointF(-w_max, y_origin_scene),
QPointF(w_max, y_origin_scene),
QPointF(x_origin_scene + w_max,
h_max + usbl_z_on_vessel * pix_ratio),
QPointF(-w_max, h_max + usbl_z_on_vessel * pix_ratio)
])
sea = QGraphicsPolygonItem(sea_polygon)
sea.setBrush(QColor(204, 229, 255))
x_origin_scene += vrp_x_on_vessel * pix_ratio
# draw origin point
origin = QGraphicsEllipseItem(x_origin_scene - 10, y_origin_scene - 10,
20, 20)
origin.setBrush(Qt.white)
line_one_origin = QGraphicsLineItem(x_origin_scene - 10,
y_origin_scene,
x_origin_scene + 10,
y_origin_scene)
line_two_origin = QGraphicsLineItem(x_origin_scene,
y_origin_scene - 10,
x_origin_scene,
y_origin_scene + 10)
if util.find_spec('usblcontroller') is not None:
# usbl position
usbl_circle = QGraphicsEllipseItem(
x_origin_scene - 10 + usbl_x_on_vessel * pix_ratio,
y_origin_scene - 10 + usbl_z_on_vessel * pix_ratio, 20, 20)
usbl_circle.setBrush(QColor(255, 99, 71))
line_one_usbl = QGraphicsLineItem(
x_origin_scene - 10 + usbl_x_on_vessel * pix_ratio,
y_origin_scene + usbl_z_on_vessel * pix_ratio,
x_origin_scene + 10 + usbl_x_on_vessel * pix_ratio,
y_origin_scene + usbl_z_on_vessel * pix_ratio)
line_two_usbl = QGraphicsLineItem(
x_origin_scene + usbl_x_on_vessel * pix_ratio,
y_origin_scene - 10 + usbl_z_on_vessel * pix_ratio,
x_origin_scene + usbl_x_on_vessel * pix_ratio,
y_origin_scene + 10 + usbl_z_on_vessel * pix_ratio)
# define labels
usbl_label = QGraphicsSimpleTextItem("USBL", usbl_circle)
usbl_label.setPos(
x_origin_scene - 10 + usbl_x_on_vessel * pix_ratio,
y_origin_scene + 10 + usbl_z_on_vessel * pix_ratio)
origin_label = QGraphicsSimpleTextItem("VRP", origin)
if usbl_x_on_vessel == 0 and usbl_z_on_vessel == 0:
origin_label.setPos(x_origin_scene + 10, y_origin_scene - 10)
else:
origin_label.setPos(x_origin_scene - 10, y_origin_scene + 10)
# fit view/scene
self.side_scene.setSceneRect(
0, 0, pix_ratio * v_length,
pix_ratio * v_height + usbl_z_on_vessel * pix_ratio)
self.side_graphicsView.scene().addItem(sea)
# add vessel to the scene
self.side_graphicsView.scene().addItem(self.item)
# add origin to the scene
self.side_graphicsView.scene().addItem(origin)
self.side_graphicsView.scene().addItem(line_one_origin)
self.side_graphicsView.scene().addItem(line_two_origin)
if util.find_spec('usblcontroller') is not None:
# add usbl
self.side_graphicsView.scene().addItem(usbl_circle)
self.side_graphicsView.scene().addItem(line_one_usbl)
self.side_graphicsView.scene().addItem(line_two_usbl)
# add coord system
self.side_graphicsView.scene().addItem(line_x_coord)
self.side_graphicsView.scene().addItem(line_z_coord)
# set background
self.side_scene.setBackgroundBrush(Qt.white)
# set antialiasing renderhint
self.side_graphicsView.setRenderHint(QPainter.Antialiasing)
def on_accept(self):
"""On accept set values on config csettings"""
self.config.csettings[
"vessel_width"] = self.vessel_width_doubleSpinBox.value()
self.config.csettings[
"vessel_length"] = self.vessel_length_doubleSpinBox.value()
self.config.csettings[
"vrp_offset_x"] = self.vrp_x_offset_doubleSpinBox.value()
self.config.csettings[
"vrp_offset_y"] = self.vrp_y_offset_doubleSpinBox.value()
self.config.csettings[
'gps_offset_x'] = self.gps_x_offset_doubleSpinBox.value()
self.config.csettings[
'gps_offset_y'] = self.gps_y_offset_doubleSpinBox.value()
self.config.csettings[
'gps_offset_heading'] = self.gps_heading_doubleSpinBox.value()
if util.find_spec('usblcontroller') is not None:
self.config.csettings[
'usbl_offset_x'] = self.usbl_x_offset_doubleSpinBox.value()
self.config.csettings[
'usbl_offset_y'] = self.usbl_y_offset_doubleSpinBox.value()
self.config.csettings[
'usbl_offset_z'] = self.usbl_z_offset_doubleSpinBox.value()
self.config.csettings[
'usbl_offset_heading'] = self.usbl_heading_doubleSpinBox.value(
)
self.config.save()
def resizeEvent(self, qresizeevent):
super(VesselPositionSystem, self).resizeEvent(qresizeevent)
self.print_vessel()
def print_side_view(self):
"""
draw vessel, usbl and vessel reference point on a side_graphicsView
"""
# clear previous scene
self.side_scene.clear()
self.side_graphicsView.viewport().update()
# get vessel spinbox values
v_length = self.vessel_length_doubleSpinBox.value()
v_height = v_length / 3
vrp_x_on_vessel = self.vrp_x_offset_doubleSpinBox.value()
if util.find_spec('usblcontroller') is not None:
usbl_x_on_vessel = self.usbl_x_offset_doubleSpinBox.value()
usbl_z_on_vessel = self.usbl_z_offset_doubleSpinBox.value()
else:
usbl_x_on_vessel = 0
usbl_z_on_vessel = 0
# get width and height from view
w_max = self.side_graphicsView.width()
h_max = self.side_graphicsView.height()
# set max
if v_height > v_length:
max_pix = v_height
else:
max_pix = v_length
# set pixel ratio
if w_max < h_max:
pix_ratio = (w_max - 20) / max_pix
else:
pix_ratio = (h_max - 20) / max_pix
# set the size of the vessel
vessel = QPolygonF([
QPointF(0, 0),
QPointF(pix_ratio * v_length, 0),
QPointF(pix_ratio * v_length * 3 / 4, pix_ratio * v_height),
QPointF(0, pix_ratio * v_height)
])
self.item = QGraphicsPolygonItem(vessel)
# set brown color
self.item.setBrush(QColor(210, 180, 140))
x_origin_scene = (pix_ratio * v_length / 2)
y_origin_scene = (pix_ratio * v_height / 2)
# coordinate system
line_x_coord = QGraphicsLineItem(
x_origin_scene, y_origin_scene, pix_ratio * v_length -
(pix_ratio * v_length - pix_ratio * v_length * 3 / 4) / 2,
y_origin_scene)
line_z_coord = QGraphicsLineItem(x_origin_scene, y_origin_scene,
x_origin_scene, pix_ratio * v_height)
x_label = QGraphicsSimpleTextItem("X", line_x_coord)
x_label.setPos(
pix_ratio * v_length -
(pix_ratio * v_length - pix_ratio * v_length * 3 / 4) / 2 - 30,
y_origin_scene)
z_label = QGraphicsSimpleTextItem("Z", line_z_coord)
z_label.setPos(x_origin_scene - 20, pix_ratio * v_height - 20)
# set sea background
sea_polygon = QPolygonF([
QPointF(-w_max, y_origin_scene),
QPointF(w_max, y_origin_scene),
QPointF(x_origin_scene + w_max,
h_max + usbl_z_on_vessel * pix_ratio),
QPointF(-w_max, h_max + usbl_z_on_vessel * pix_ratio)
])
sea = QGraphicsPolygonItem(sea_polygon)
sea.setBrush(QColor(204, 229, 255))
x_origin_scene += vrp_x_on_vessel * pix_ratio
# draw origin point
origin = QGraphicsEllipseItem(x_origin_scene - 10, y_origin_scene - 10,
20, 20)
origin.setBrush(Qt.white)
line_one_origin = QGraphicsLineItem(x_origin_scene - 10,
y_origin_scene,
x_origin_scene + 10,
y_origin_scene)
line_two_origin = QGraphicsLineItem(x_origin_scene,
y_origin_scene - 10,
x_origin_scene,
y_origin_scene + 10)
if util.find_spec('usblcontroller') is not None:
# usbl position
usbl_circle = QGraphicsEllipseItem(
x_origin_scene - 10 + usbl_x_on_vessel * pix_ratio,
y_origin_scene - 10 + usbl_z_on_vessel * pix_ratio, 20, 20)
usbl_circle.setBrush(QColor(255, 99, 71))
line_one_usbl = QGraphicsLineItem(
x_origin_scene - 10 + usbl_x_on_vessel * pix_ratio,
y_origin_scene + usbl_z_on_vessel * pix_ratio,
x_origin_scene + 10 + usbl_x_on_vessel * pix_ratio,
y_origin_scene + usbl_z_on_vessel * pix_ratio)
line_two_usbl = QGraphicsLineItem(
x_origin_scene + usbl_x_on_vessel * pix_ratio,
y_origin_scene - 10 + usbl_z_on_vessel * pix_ratio,
x_origin_scene + usbl_x_on_vessel * pix_ratio,
y_origin_scene + 10 + usbl_z_on_vessel * pix_ratio)
# define labels
usbl_label = QGraphicsSimpleTextItem("USBL", usbl_circle)
usbl_label.setPos(
x_origin_scene - 10 + usbl_x_on_vessel * pix_ratio,
y_origin_scene + 10 + usbl_z_on_vessel * pix_ratio)
origin_label = QGraphicsSimpleTextItem("VRP", origin)
if usbl_x_on_vessel == 0 and usbl_z_on_vessel == 0:
origin_label.setPos(x_origin_scene + 10, y_origin_scene - 10)
else:
origin_label.setPos(x_origin_scene - 10, y_origin_scene + 10)
# fit view/scene
self.side_scene.setSceneRect(
0, 0, pix_ratio * v_length,
pix_ratio * v_height + usbl_z_on_vessel * pix_ratio)
self.side_graphicsView.scene().addItem(sea)
# add vessel to the scene
self.side_graphicsView.scene().addItem(self.item)
# add origin to the scene
self.side_graphicsView.scene().addItem(origin)
self.side_graphicsView.scene().addItem(line_one_origin)
self.side_graphicsView.scene().addItem(line_two_origin)
if util.find_spec('usblcontroller') is not None:
# add usbl
self.side_graphicsView.scene().addItem(usbl_circle)
self.side_graphicsView.scene().addItem(line_one_usbl)
self.side_graphicsView.scene().addItem(line_two_usbl)
# add coord system
self.side_graphicsView.scene().addItem(line_x_coord)
self.side_graphicsView.scene().addItem(line_z_coord)
# set background
self.side_scene.setBackgroundBrush(Qt.white)
# set antialiasing renderhint
self.side_graphicsView.setRenderHint(QPainter.Antialiasing)
class TransitionGraphicsItem(QGraphicsObject):
# constant values
SQUARE_SIDE = 10
ARROW_SIZE = 12
PEN_NORMAL_WIDTH = 1
PEN_FOCUS_WIDTH = 3
posChanged = pyqtSignal('QGraphicsItem')
def __init__(self, data):
super(QGraphicsObject, self).__init__()
self.transitionData = data
self.originLine = None
self.destinationLine = None
self.arrow = None
self.textGraphics = None
self.middleHandle = None
self.graphicsOrigin = self.transitionData.origin.getGraphicsItem()
self.graphicsDestination = self.transitionData.destination.getGraphicsItem()
# connect position changed event
self.graphicsOrigin.posChanged.connect(self.statePosChanged)
self.graphicsDestination.posChanged.connect(self.statePosChanged)
self.midPointX = (self.graphicsDestination.scenePos().x() + self.graphicsOrigin.scenePos().x()) / 2.0
self.midPointY = (self.graphicsDestination.scenePos().y() + self.graphicsOrigin.scenePos().y()) / 2.0
self.createOriginLine()
self.createDestinationLine()
self.createArrow()
self.createMiddleHandle()
self.createIdTextBox()
def statePosChanged(self, state):
if self.graphicsOrigin == state:
self.createOriginLine()
elif self.graphicsDestination == state:
self.createDestinationLine()
self.createArrow()
def createOriginLine(self):
if self.originLine == None:
self.originLine = QGraphicsLineItem(self.midPointX, self.midPointY, self.graphicsOrigin.scenePos().x(),
self.graphicsOrigin.scenePos().y(), self)
else:
self.originLine.setLine(QLineF(self.midPointX, self.midPointY, self.graphicsOrigin.scenePos().x(),
self.graphicsOrigin.scenePos().y()))
myLine = self.originLine.line()
myLine.setLength(myLine.length() - StateGraphicsItem.NODE_WIDTH / 2)
self.originLine.setLine(myLine)
def createDestinationLine(self):
if self.destinationLine == None:
self.destinationLine = QGraphicsLineItem(self.midPointX, self.midPointY, self.graphicsDestination.scenePos().x(),
self.graphicsDestination.scenePos().y(), self)
else:
self.destinationLine.setLine(QLineF(self.midPointX, self.midPointY, self.graphicsDestination.scenePos().x(),
self.graphicsDestination.scenePos().y()))
myLine = self.destinationLine.line()
myLine.setLength(myLine.length() - StateGraphicsItem.NODE_WIDTH / 2)
self.destinationLine.setLine(myLine)
def createArrow(self):
# add an arrow to destination line
myLine = self.destinationLine.line()
myLine.setLength(myLine.length() - TransitionGraphicsItem.ARROW_SIZE)
rotatePoint = myLine.p2() - self.destinationLine.line().p2()
rightPointX = rotatePoint.x() * math.cos(math.pi / 6) - rotatePoint.y() * math.sin(math.pi / 6)
rightPointY = rotatePoint.x() * math.sin(math.pi / 6) + rotatePoint.y() * math.cos(math.pi / 6)
rightPoint = QPointF(rightPointX + self.destinationLine.line().x2(),
rightPointY + self.destinationLine.line().y2())
leftPointX = rotatePoint.x() * math.cos(-math.pi / 6) - rotatePoint.y() * math.sin(-math.pi / 6)
leftPointY = rotatePoint.x() * math.sin(-math.pi / 6) + rotatePoint.y() * math.cos(-math.pi / 6)
leftPoint = QPointF(leftPointX + self.destinationLine.line().x2(),
leftPointY + self.destinationLine.line().y2())
polygon = QPolygonF()
polygon << rightPoint << leftPoint << self.destinationLine.line().p2() << rightPoint
if self.arrow == None:
self.arrow = QGraphicsPolygonItem(polygon, self)
else:
self.arrow.setPolygon(polygon)
brush = QBrush(Qt.SolidPattern)
brush.setColor(Qt.black)
self.arrow.setBrush(brush)
def createMiddleHandle(self):
# create middle handle
if self.middleHandle == None:
self.middleHandle = RectHandleGraphicsItem(TransitionGraphicsItem.SQUARE_SIDE, self)
self.middleHandle.setFlag(QGraphicsItem.ItemIsMovable)
self.middleHandle.setPos(self.midPointX, self.midPointY)
def createIdTextBox(self):
if self.textGraphics == None:
self.textGraphics = IdTextBoxGraphicsItem(self.transitionData.name, self)
self.textGraphics.textChanged.connect(self.nameChanged)
else:
self.textGraphics.setPlainText(self.transitionData.name)
textWidth = self.textGraphics.boundingRect().width()
self.textGraphics.setPos(self.midPointX - textWidth / 2, self.midPointY + TransitionGraphicsItem.SQUARE_SIDE -
(TransitionGraphicsItem.SQUARE_SIDE / 2) + 5)
def updateMiddlePoints(self, newPosition):
self.midPointX = newPosition.x()
self.midPointY = newPosition.y()
self.createOriginLine()
self.createDestinationLine()
self.createArrow()
self.createIdTextBox()
self.posChanged.emit(self)
def nameChanged(self, name):
self.transitionData.name = name
self.createIdTextBox()
def boundingRect(self):
if self.middleHandle != None:
return self.middleHandle.boundingRect()
else:
return None
def disableInteraction(self):
if self.middleHandle is not None:
self.middleHandle.setFlag(QGraphicsItem.ItemIsMovable, False)
self.middleHandle.disableInteraction()
class TransitionGraphicsItem(QGraphicsObject):
# constant values
SQUARE_SIDE = 10
ARROW_SIZE = 12
PEN_NORMAL_WIDTH = 1
PEN_FOCUS_WIDTH = 3
posChanged = pyqtSignal('QGraphicsItem')
def __init__(self, data):
super(QGraphicsObject, self).__init__()
self.transitionData = data
self.originLine = None
self.destinationLine = None
self.arrow = None
self.textGraphics = None
self.middleHandle = None
self.graphicsOrigin = self.transitionData.origin.getGraphicsItem()
self.graphicsDestination = self.transitionData.destination.getGraphicsItem(
)
# connect position changed event
self.graphicsOrigin.posChanged.connect(self.statePosChanged)
self.graphicsDestination.posChanged.connect(self.statePosChanged)
self.midPointX = (self.graphicsDestination.scenePos().x() +
self.graphicsOrigin.scenePos().x()) / 2.0
self.midPointY = (self.graphicsDestination.scenePos().y() +
self.graphicsOrigin.scenePos().y()) / 2.0
self.createOriginLine()
self.createDestinationLine()
self.createArrow()
self.createMiddleHandle()
self.createIdTextBox()
def statePosChanged(self, state):
if self.graphicsOrigin == state:
self.createOriginLine()
elif self.graphicsDestination == state:
self.createDestinationLine()
self.createArrow()
def createOriginLine(self):
if self.originLine == None:
self.originLine = QGraphicsLineItem(
self.midPointX, self.midPointY,
self.graphicsOrigin.scenePos().x(),
self.graphicsOrigin.scenePos().y(), self)
else:
self.originLine.setLine(
QLineF(self.midPointX, self.midPointY,
self.graphicsOrigin.scenePos().x(),
self.graphicsOrigin.scenePos().y()))
myLine = self.originLine.line()
myLine.setLength(myLine.length() - StateGraphicsItem.NODE_WIDTH / 2)
self.originLine.setLine(myLine)
def createDestinationLine(self):
if self.destinationLine == None:
self.destinationLine = QGraphicsLineItem(
self.midPointX, self.midPointY,
self.graphicsDestination.scenePos().x(),
self.graphicsDestination.scenePos().y(), self)
else:
self.destinationLine.setLine(
QLineF(self.midPointX, self.midPointY,
self.graphicsDestination.scenePos().x(),
self.graphicsDestination.scenePos().y()))
myLine = self.destinationLine.line()
myLine.setLength(myLine.length() - StateGraphicsItem.NODE_WIDTH / 2)
self.destinationLine.setLine(myLine)
def createArrow(self):
# add an arrow to destination line
myLine = self.destinationLine.line()
myLine.setLength(myLine.length() - TransitionGraphicsItem.ARROW_SIZE)
rotatePoint = myLine.p2() - self.destinationLine.line().p2()
rightPointX = rotatePoint.x() * math.cos(
math.pi / 6) - rotatePoint.y() * math.sin(math.pi / 6)
rightPointY = rotatePoint.x() * math.sin(
math.pi / 6) + rotatePoint.y() * math.cos(math.pi / 6)
rightPoint = QPointF(rightPointX + self.destinationLine.line().x2(),
rightPointY + self.destinationLine.line().y2())
leftPointX = rotatePoint.x() * math.cos(
-math.pi / 6) - rotatePoint.y() * math.sin(-math.pi / 6)
leftPointY = rotatePoint.x() * math.sin(
-math.pi / 6) + rotatePoint.y() * math.cos(-math.pi / 6)
leftPoint = QPointF(leftPointX + self.destinationLine.line().x2(),
leftPointY + self.destinationLine.line().y2())
polygon = QPolygonF()
polygon << rightPoint << leftPoint << self.destinationLine.line().p2(
) << rightPoint
if self.arrow == None:
self.arrow = QGraphicsPolygonItem(polygon, self)
else:
self.arrow.setPolygon(polygon)
brush = QBrush(Qt.SolidPattern)
brush.setColor(Qt.black)
self.arrow.setBrush(brush)
def createMiddleHandle(self):
# create middle handle
if self.middleHandle == None:
self.middleHandle = RectHandleGraphicsItem(
TransitionGraphicsItem.SQUARE_SIDE, self)
self.middleHandle.setFlag(QGraphicsItem.ItemIsMovable)
self.middleHandle.setPos(self.midPointX, self.midPointY)
def createIdTextBox(self):
if self.textGraphics == None:
self.textGraphics = IdTextBoxGraphicsItem(self.transitionData.name,
self)
self.textGraphics.textChanged.connect(self.nameChanged)
else:
self.textGraphics.setPlainText(self.transitionData.name)
textWidth = self.textGraphics.boundingRect().width()
self.textGraphics.setPos(
self.midPointX - textWidth / 2,
self.midPointY + TransitionGraphicsItem.SQUARE_SIDE -
(TransitionGraphicsItem.SQUARE_SIDE / 2) + 5)
def updateMiddlePoints(self, newPosition):
self.midPointX = newPosition.x()
self.midPointY = newPosition.y()
self.createOriginLine()
self.createDestinationLine()
self.createArrow()
self.createIdTextBox()
self.posChanged.emit(self)
def nameChanged(self, name):
self.transitionData.name = name
self.createIdTextBox()
def boundingRect(self):
if self.middleHandle != None:
return self.middleHandle.boundingRect()
else:
return None
def disableInteraction(self):
if self.middleHandle is not None:
self.middleHandle.setFlag(QGraphicsItem.ItemIsMovable, False)
self.middleHandle.disableInteraction()
class MagnetButtonItem(GraphicsWidget):
fill_brush = QBrush(QColor(255, 255, 255))
def __init__(self, magnet, size, direction=1.0, parent=None):
super(MagnetButtonItem, self).__init__(parent)
self.magnet = magnet
self.direction = direction
tri_poly = QPolygonF([
QPointF(-size, direction * size / 2.0),
QPointF(0.0, -direction * size / 2.0),
QPointF(size, direction * size / 2.0)
])
self.triangle = QGraphicsPolygonItem(tri_poly, parent=self)
self.triangle.setBrush(self.fill_brush)
self.setFixedHeight(size)
self.setFixedWidth(size)
self._bounds = QRectF(0, 0, 1, 1)
self._boundingRect = None
self.anchor = Point(0.5, 0.5)
self._lastScene = None
self._lastTransform = None
self.setToolTip(self.magnet.name)
self.default_opacity = 0.7
self.disabled_opacity = 0.4
self.hovering_opacity = 1.0
self.setOpacity(self.default_opacity)
self.enabled = True
def mouseClickEvent(self, ev):
if not self.enabled:
return
if self.direction == 1.0:
self.magnet.increase_kick()
elif self.direction == -1.0:
self.magnet.decrease_kick()
ev.accept()
def hoverEvent(self, ev):
#Note this is the custom pyqtgraph.GraphicsWidget hover event, not the Qt version.
if not self.enabled:
return
if ev.enter:
self.setOpacity(self.hovering_opacity)
elif ev.exit:
self.setOpacity(self.default_opacity)
def disable(self):
self.enabled = False
self.setOpacity(self.disabled_opacity)
def enable(self):
self.enabled = True
self.setOpacity(self.default_opacity)
def boundingRect(self):
return self.triangle.mapToParent(
self.triangle.boundingRect()).boundingRect()
def viewTransformChanged(self):
# called whenever view transform has changed.
# Do this here to avoid double-updates when view changes.
self.updateTransform()
def dataBounds(self, axis, frac=1.0, orthoRange=None):
# """Called by ViewBox for determining the auto-range bounds.
return None
def updateTransform(self):
# update transform such that this item has the correct orientation
# and scaling relative to the scene, but inherits its position from its
# parent.
# This is similar to setting ItemIgnoresTransformations = True, but
# does not break mouse interaction and collision detection.
p = self.parentItem()
if p is None:
pt = QTransform()
else:
pt = p.sceneTransform()
if pt == self._lastTransform:
return
t = pt.inverted()[0]
# reset translation
t.setMatrix(t.m11(), t.m12(), t.m13(), t.m21(), t.m22(), t.m23(), 0, 0,
t.m33())
self.setTransform(t)
self._lastTransform = pt
def setNewBounds(self):
"""Update the item's bounding rect to match the viewport"""
self._boundingRect = None ## invalidate bounding rect, regenerate later if needed.
self.prepareGeometryChange()
def itemChange(self, change, value):
if change == QGraphicsItem.ItemSceneChange:
s = value
ls = self.scene()
if ls is not None:
ls.sigPrepareForPaint.disconnect(self.updateTransform)
if s is not None:
try:
s.sigPrepareForPaint.connect(self.updateTransform)
except AttributeError:
#When the whole GUI closes, all the magnet buttons get re-parented to a plain old QGraphicsScene, which doesnt have the signal.
pass
self.updateTransform()
return super(MagnetButtonItem, self).itemChange(change, value)
class GraphicLine(QGraphicsLineItem):
"""
This class is a graphic line with an arrow which connects
two blocks in the scene.
Attributes
----------
origin : QGraphicsRectItem
Origin rect of the line.
destination : QGraphicsRectItem
Destination rect of the line.
scene : QGraphicsScene
Current drawing scene.
brush : QBrush
Brush to draw the arrow.
pen : QPen
Pen to draw the arrow.
arrow_head : QGraphicsPolygonItem
Final arrow of the line.
arrow_size : int
Size of the head of the arrow.
dim_label : QGraphicsTextItem
Text showing the dimensions of the edge.
is_valid : bool
Flag monitoring whether the connection is consistent.
Methods
----------
gen_endpoints(QRectF, QRectF)
Returns the shortest connection between the two rects.
draw_arrow()
Draws the polygon for the arrow.
set_valid(bool)
Assign validity for this line.
update_dims(tuple)
Update the line dimensions.
update_pos(QRectF)
Update the line position given the new rect position.
remove_self()
Delete this line.
"""
def __init__(self, origin: QGraphicsRectItem,
destination: QGraphicsRectItem, scene):
super(GraphicLine, self).__init__()
self.origin = origin
self.destination = destination
self.scene = scene
# This flag confirms a legal connection
self.is_valid = True
# Get the four sides of the rects
destination_lines = u.get_sides_of(
self.destination.sceneBoundingRect())
origin_lines = u.get_sides_of(self.origin.sceneBoundingRect())
# Get the shortest edge between the two blocks
self.setLine(self.gen_endpoints(origin_lines, destination_lines))
self.brush = QBrush(QColor(style.GREY_0))
self.pen = QPen(QColor(style.GREY_0))
self.pen.setWidth(4)
self.pen.setCapStyle(Qt.RoundCap)
self.pen.setJoinStyle(Qt.RoundJoin)
self.setPen(self.pen)
# Dimensions labels
self.dim_label = QGraphicsTextItem()
self.dim_label.setZValue(6)
self.scene.addItem(self.dim_label)
# Arrow head
self.arrow_head = QGraphicsPolygonItem()
self.arrow_head.setPen(self.pen)
self.arrow_head.setBrush(self.brush)
self.arrow_size = 15.0
self.draw_arrow()
@staticmethod
def gen_endpoints(origin_sides: dict, destination_sides: dict) -> QLineF:
"""
This method finds the shortest path between two rectangles.
Parameters
----------
origin_sides : dict
The dictionary {side_label: side_size} of the starting rect.
destination_sides : dict
The dictionary {side_label: side_size} of the ending rect.
Returns
----------
QLineF
The shortest line.
"""
# Init the line with the maximum possible value
shortest_line = QLineF(-sys.maxsize / 2, -sys.maxsize / 2,
sys.maxsize / 2, sys.maxsize / 2)
for o_side, origin_side in origin_sides.items():
o_mid_x, o_mid_y = u.get_midpoint(o_side, origin_side)
for d_side, destination_side in destination_sides.items():
d_mid_x, d_mid_y = u.get_midpoint(d_side, destination_side)
# Update line
line = QLineF(o_mid_x, o_mid_y, d_mid_x, d_mid_y)
if line.length() < shortest_line.length():
shortest_line = line
return shortest_line
def draw_arrow(self) -> None:
"""
This method draws an arrow at the end of the line.
"""
polygon_arrow_head = QPolygonF()
# Compute the arrow angle
angle = math.acos(self.line().dx() / self.line().length())
angle = ((math.pi * 2) - angle)
# Compute the direction where the arrow points (1 up, -1 down)
arrow_direction = 1
if math.asin(self.line().dy() / self.line().length()) < 0:
arrow_direction = -1
# First point of the arrow tail
arrow_p1 = self.line().p2() - arrow_direction * QPointF(
arrow_direction * math.sin(angle + math.pi / 2.5) *
self.arrow_size,
math.cos(angle + math.pi / 2.5) * self.arrow_size)
# Second point of the arrow tail
arrow_p2 = self.line().p2() - arrow_direction * QPointF(
arrow_direction * math.sin(angle + math.pi - math.pi / 2.5) *
self.arrow_size,
math.cos(angle + math.pi - math.pi / 2.5) * self.arrow_size)
# Third point is the line end
polygon_arrow_head.append(self.line().p2())
polygon_arrow_head.append(arrow_p2)
polygon_arrow_head.append(arrow_p1)
# Add the arrow to the scene
self.arrow_head.setZValue(1)
self.arrow_head.setParentItem(self)
self.arrow_head.setPolygon(polygon_arrow_head)
def set_valid(self, valid: bool) -> None:
"""
This method changes the arrow style: if the connection
is not valid the arrow becomes red, otherwise it
remains grey with dimensions displayed.
Parameters
----------
valid : bool
New value for the legality flag.
"""
if valid:
self.is_valid = True
self.pen.setColor(QColor(style.GREY_0))
self.brush.setColor(QColor(style.GREY_0))
self.dim_label.setVisible(False)
else:
self.is_valid = False
self.pen.setColor(QColor(style.RED_2))
self.brush.setColor(QColor(style.RED_2))
if self.scene.is_dim_visible:
self.dim_label.setVisible(True)
def update_dims(self, dims: tuple) -> None:
"""
This method updates the input & output dimensions.
Parameters
----------
dims : tuple
The new dimensions to update.
"""
self.dim_label.setHtml("<div style = 'background-color: " +
style.RED_2 +
"; color: white; font-family: consolas;'>" +
str(dims) + "</div>")
self.dim_label.setPos(self.line().center())
def update_pos(self, new_target: QRectF):
"""
This method updates the line as it origin or its destination has
changed location.
Parameters
----------
new_target : QRectF
"""
if new_target == self.destination:
self.destination = new_target
elif new_target == self.origin:
self.origin = new_target
# Get the four sides of the rects
destination_lines = u.get_sides_of(
self.destination.sceneBoundingRect())
origin_lines = u.get_sides_of(self.origin.sceneBoundingRect())
# Get the shortest edge between the two blocks
self.setLine(self.gen_endpoints(origin_lines, destination_lines))
self.draw_arrow()
self.dim_label.setPos(self.line().center())
def remove_self(self) -> None:
"""
The line is removed from the scene along with origin and destination
pointers.
"""
self.scene.removeItem(self)
self.scene.edges.remove(self)
self.scene.removeItem(self.dim_label)
self.origin = None
self.destination = None
def on_qAction15_triggered(self):
item = QGraphicsPolygonItem()
points = [QPointF(0, -40), QPointF(60, 40), QPointF(-60, 40)]
item.setPolygon(QPolygonF(points))
item.setBrush(QBrush(Qt.magenta))
self.__setItemProperties(item, "三角形")
def on_actItem_Triangle_triggered(self):
item=QGraphicsPolygonItem()
points=[QPointF(0,-40), QPointF(60,40), QPointF(-60,40)]
item.setPolygon(QPolygonF(points))
item.setBrush(QBrush(Qt.magenta)) #设置填充颜色
self.__setItemProperties(item,"三角形")
def create_cross():
item = QGraphicsPolygonItem(qt_drawings.cross_polygon)
item.setBrush(qt_drawings.red_brush)
item.setPen(qt_drawings.red_pen)
return item
