Python PlotWidget.setRange方法代码示例

# 需要导入模块: from pyqtgraph import PlotWidget [as 别名]
# 或者: from pyqtgraph.PlotWidget import setRange [as 别名]
class RealtimePlotWidget(QWidget):
    COLORS = [Qt.red, Qt.blue, Qt.green, Qt.magenta, Qt.cyan,
              Qt.darkRed, Qt.darkBlue, Qt.darkGreen, Qt.darkYellow, Qt.gray]

    def __init__(self, parent=None):
        super(RealtimePlotWidget, self).__init__(parent)
        self._plot_widget = PlotWidget()
        self._plot_widget.setBackground((0, 0, 0))
        self._plot_widget.addLegend()
        self._plot_widget.showButtons()
        self._plot_widget.enableAutoRange()
        self._plot_widget.showGrid(x=True, y=True, alpha=0.2)
        vbox = QVBoxLayout()
        vbox.addWidget(self._plot_widget)
        self.setLayout(vbox)

        self._color_index = 0
        self._curves = {}

    def add_curve(self, curve_id, curve_name, data_x=[], data_y=[]):
        color = QColor(self.COLORS[self._color_index % len(self.COLORS)])
        self._color_index += 1
        pen = mkPen(color, width=1)
        plot = self._plot_widget.plot(name=curve_name, pen=pen)
        data_x = numpy.array(data_x)
        data_y = numpy.array(data_y)
        self._curves[curve_id] = {'x': data_x, 'y': data_y, 'plot': plot}

    def remove_curve(self, curve_id):
        curve_id = str(curve_id)
        if curve_id in self._curves:
            self._plot_widget.removeItem(self._curves[curve_id]['plot'])
            del self._curves[curve_id]

    def set_x_range(self, left, right):
        self._plot_widget.setRange(xRange=(left, right))

    def update_values(self, curve_id, x, y):
        curve = self._curves[curve_id]
        curve['x'] = numpy.append(curve['x'], x)
        curve['y'] = numpy.append(curve['y'], y)

    def redraw(self):
        for curve in self._curves.values():
            if len(curve['x']):
                curve['plot'].setData(curve['x'], curve['y'])

    def lazy_redraw(self, period):
        timestamp = time.time()
        if not hasattr(self, '_prev_lazy_redraw'):
            self._prev_lazy_redraw = 0.0
        if timestamp - self._prev_lazy_redraw > period:
            self._prev_lazy_redraw = timestamp
            self.redraw()

# 需要导入模块: from pyqtgraph import PlotWidget [as 别名]
# 或者: from pyqtgraph.PlotWidget import setRange [as 别名]
class BusMonitorWidget(QGroupBox):
    DEFAULT_PLOT_X_RANGE = 120
    BUS_LOAD_PLOT_MAX_SAMPLES = 5000

    def __init__(self, parent, node, iface_name):
        super(BusMonitorWidget, self).__init__(parent)
        self.setTitle('CAN bus activity (%s)' % iface_name.split(os.path.sep)[-1])

        self._node = node
        self._hook_handle = self._node.can_driver.add_io_hook(self._frame_hook)

        self._columns = [
            BasicTable.Column('Dir',
                              lambda e: (e[0].upper()),
                              searchable=False),
            BasicTable.Column('Local Time', TimestampRenderer(), searchable=False),
            BasicTable.Column('CAN ID',
                              lambda e: (('%0*X' % (8 if e[1].extended else 3, e[1].id)).rjust(8),
                                         colorize_can_id(e[1]))),
            BasicTable.Column('Data Hex',
                              lambda e: (' '.join(['%02X' % x for x in e[1].data]).ljust(3 * e[1].MAX_DATA_LENGTH),
                                         colorize_transfer_id(e))),
            BasicTable.Column('Data ASCII',
                              lambda e: (''.join([(chr(x) if 32 <= x <= 126 else '.') for x in e[1].data]),
                                         colorize_transfer_id(e))),
            BasicTable.Column('Src',
                              lambda e: render_node_id_with_color(e[1], 'src')),
            BasicTable.Column('Dst',
                              lambda e: render_node_id_with_color(e[1], 'dst')),
            BasicTable.Column('Data Type',
                              lambda e: render_data_type_with_color(e[1]),
                              resize_mode=QHeaderView.Stretch),
        ]

        self._log_widget = RealtimeLogWidget(self, columns=self._columns, font=get_monospace_font(),
                                             post_redraw_hook=self._redraw_hook)
        self._log_widget.on_selection_changed = self._update_measurement_display

        def flip_row_mark(row, col):
            if col == 0:
                item = self._log_widget.table.item(row, col)
                if item.icon().isNull():
                    item.setIcon(get_icon('circle'))
                    flash(self, 'Row %d was marked, click again to unmark', row, duration=3)
                else:
                    item.setIcon(QIcon())

        self._log_widget.table.cellPressed.connect(flip_row_mark)

        self._stat_update_timer = QTimer(self)
        self._stat_update_timer.setSingleShot(False)
        self._stat_update_timer.timeout.connect(self._update_stat)
        self._stat_update_timer.start(500)

        self._traffic_stat = TrafficStatCounter()

        self._stat_frames_tx = QLabel('N/A', self)
        self._stat_frames_rx = QLabel('N/A', self)
        self._stat_traffic = QLabel('N/A', self)

        self._load_plot = PlotWidget(background=(0, 0, 0))
        self._load_plot.setRange(xRange=(0, self.DEFAULT_PLOT_X_RANGE), padding=0)
        self._load_plot.setMaximumHeight(150)
        self._load_plot.setMinimumHeight(100)
        self._load_plot.setMinimumWidth(100)
        self._load_plot.setSizePolicy(QSizePolicy.Minimum, QSizePolicy.Minimum)
        self._load_plot.showGrid(x=True, y=True, alpha=0.4)
        self._load_plot.setToolTip('Frames per second')
        self._load_plot.getPlotItem().getViewBox().setMouseEnabled(x=True, y=False)
        self._load_plot.enableAutoRange()
        self._bus_load_plot = self._load_plot.plot(name='Frames per second', pen=mkPen(QColor(Qt.lightGray), width=1))
        self._bus_load_samples = [], []
        self._started_at_mono = time.monotonic()

        layout = QVBoxLayout(self)

        layout.addWidget(self._log_widget, 1)

        stat_vars_layout = QGridLayout(self)
        stat_layout_next_row = 0

        def add_stat_row(label, value):
            nonlocal stat_layout_next_row
            stat_vars_layout.addWidget(QLabel(label, self), stat_layout_next_row, 0)
            stat_vars_layout.addWidget(value, stat_layout_next_row, 1)
            value.setMinimumWidth(75)
            stat_layout_next_row += 1

        add_stat_row('Frames transmitted:', self._stat_frames_tx)
        add_stat_row('Frames received:', self._stat_frames_rx)
        add_stat_row('Frames per second:', self._stat_traffic)
        stat_vars_layout.setRowStretch(stat_layout_next_row, 1)

        stat_layout = QHBoxLayout(self)
        stat_layout.addLayout(stat_vars_layout)
        stat_layout.addWidget(self._load_plot, 1)

        layout.addLayout(stat_layout, 0)
        self.setLayout(layout)

#.........这里部分代码省略.........

# 需要导入模块: from pyqtgraph import PlotWidget [as 别名]
# 或者: from pyqtgraph.PlotWidget import setRange [as 别名]
class Plotter(QWidget):
    MAX_DATA_POINTS_PER_CURVE = 200000

    COLORS = [Qt.red, Qt.green, Qt.blue,                        # RGB - http://ux.stackexchange.com/questions/79561
              Qt.yellow, Qt.cyan, Qt.magenta,                   # Close to RGB
              Qt.darkRed, Qt.darkGreen, Qt.darkBlue,            # Darker RGB
              Qt.darkYellow, Qt.darkCyan, Qt.darkMagenta,       # Close to RGB
              Qt.gray, Qt.darkGray]                             # Leftovers

    INITIAL_X_RANGE = 60

    def __init__(self, parent=None):
        # Parent
        super(Plotter, self).__init__(parent)
        self.setWindowTitle('UAVCAN Plotter')
        self.setWindowIcon(APP_ICON)

        # Redraw timer
        self._update_timer = QTimer()
        self._update_timer.timeout.connect(self._update)
        self._update_timer.setSingleShot(False)
        self._update_timer.start(30)

        # PyQtGraph
        self._plot_widget = PlotWidget()
        self._plot_widget.setBackground((0, 0, 0))
        self._legend = self._plot_widget.addLegend()
        self._plot_widget.setRange(xRange=(0, self.INITIAL_X_RANGE), padding=0)
        self._plot_widget.showButtons()
        self._plot_widget.enableAutoRange()
        self._plot_widget.showGrid(x=True, y=True, alpha=0.4)

        # Controls
        # https://specifications.freedesktop.org/icon-naming-spec/icon-naming-spec-latest.html
        button_add_matcher = QtGui.QPushButton('New matcher', self)
        button_add_matcher.setIcon(QtGui.QIcon.fromTheme('list-add'))
        button_add_matcher.setToolTip('Add new curve matcher')
        button_add_matcher.clicked.connect(
            lambda: NewCurveMatcherWindow(self, lambda: sorted(self._active_messages), self._add_curve_matcher).show())

        button_clear_plots = QtGui.QPushButton('Clear plots', self)
        button_clear_plots.setIcon(QtGui.QIcon.fromTheme('edit-clear'))
        button_clear_plots.setToolTip('Clear the plotting area')
        button_clear_plots.clicked.connect(lambda: self._remove_all_curves())

        def delete_all_matchers():
            self._curve_matchers = []
            for i in reversed(range(self._curve_matcher_container.count())):
                self._curve_matcher_container.itemAt(i).widget().deleteLater()
            self._remove_all_curves()

        button_delete_all_matchers = QtGui.QPushButton('Delete matchers', self)
        button_delete_all_matchers.setIcon(QtGui.QIcon.fromTheme('edit-delete'))
        button_delete_all_matchers.setToolTip('Delete all matchers')
        button_delete_all_matchers.clicked.connect(delete_all_matchers)

        self._autoscroll = QtGui.QCheckBox('Autoscroll', self)
        self._autoscroll.setChecked(True)
        self._max_x = self.INITIAL_X_RANGE

        # Layout
        control_panel = QHBoxLayout()
        control_panel.addWidget(button_add_matcher)
        control_panel.addWidget(button_clear_plots)
        control_panel.addWidget(self._autoscroll)
        control_panel.addStretch()
        control_panel.addWidget(button_delete_all_matchers)

        self._curve_matcher_container = QVBoxLayout()

        layout = QVBoxLayout()
        layout.addWidget(self._plot_widget, 1)
        layout.addLayout(control_panel)
        layout.addLayout(self._curve_matcher_container)
        self.setLayout(layout)

        # Logic
        self._color_index = 0
        self._curves = {}
        self._message_queue = multiprocessing.Queue()
        self._active_messages = set() # set(data type name)
        self._curve_matchers = []

        # Defaults
        self._add_curve_matcher(CurveMatcher('uavcan.protocol.debug.KeyValue', 'value', [('key', None)]))

    def _add_curve_matcher(self, matcher):
        self._curve_matchers.append(matcher)
        view = CurveMatcherView(matcher, self)

        def remove():
            self._curve_matchers.remove(matcher)
            self._curve_matcher_container.removeWidget(view)
            view.setParent(None)
            view.deleteLater()

        view.on_remove = remove
        self._curve_matcher_container.addWidget(view)

    def _update(self):
#.........这里部分代码省略.........