simulation_gui.py 文件源码

def create_plot(self, item):
        """
        Creates a plot widget based on the given item.

        If a plot for this item is already open no new plot is created but the
        existing one is raised up again.

        Args:
            item(Qt.ListItem): Item to plot.
        """
        title = str(item.text())
        if title in self.non_plotting_docks:
            self._logger.error("Title '{}' not allowed for a plot window since"
                               "it would shadow on of the reserved "
                               "names".format(title))

        # check if plot has already been opened
        if title in self.area.findAll()[1]:
            self.area.docks[title].raiseDock()
            return

        # collect data
        data = self._get_data_by_name(title)
        t = self.currentDataset["results"]["time"]
        unit = self._get_units(title)
        if "." in title:
            name = title.split(".")[1]
        else:
            name = title

        # create plot widget
        widget = pg.PlotWidget(title=title)
        widget.showGrid(True, True)
        widget.plot(x=t, y=data)
        widget.getPlotItem().getAxis("bottom").setLabel(text="Time", units="s")
        widget.getPlotItem().getAxis("left").setLabel(text=name, units=unit)

        # add a time line
        time_line = pg.InfiniteLine(self.playbackTime,
                                    angle=90,
                                    movable=False,
                                    pen=pg.mkPen("#FF0000", width=2.0))
        widget.getPlotItem().addItem(time_line)

        # create dock container and add it to dock area
        dock = pg.dockarea.Dock(title, closable=True)
        dock.addWidget(widget)
        self.area.addDock(dock, "above", self.plotDockPlaceholder)