我们从Python开源项目中，提取了以下8个代码示例，用于说明如何使用pyqtgraph.LinearRegionItem()。
def __init__(self, parent=None,**kwargs): super(AppWindow, self).__init__(parent) self.setupUi(self) self.I=kwargs.get('I',None) from PSL.analyticsClass import analyticsClass self.CC = analyticsClass() self.setWindowTitle(self.I.H.version_string+' : '+params.get('name','').replace('\n',' ') ) self.plot1=self.add2DPlot(self.plot_area) labelStyle = {'color': 'rgb(255,255,255)', 'font-size': '11pt'} self.plot1.setLabel('left','Voltage -->', units='V',**labelStyle) self.plot1.setLabel('bottom','Time -->', units='S',**labelStyle) self.plot1.setYRange(-8.5,8.5) self.I.set_gain('CH1',1) self.I.configure_trigger(0,'CH1',0) self.tg=1 self.tgLabel.setText(str(5000*self.tg*1e-3)+'mS') self.x=[] self.looptimer=QtCore.QTimer() self.curveCH1 = self.addCurve(self.plot1,'CH1') self.CH1Fit = self.addCurve(self.plot1,'CH1 Fit') self.region = pg.LinearRegionItem([self.tg*50,self.tg*800]) self.region.setZValue(-10) self.plot1.addItem(self.region) self.lognum=0 self.state=0 self.I.set_state(SQR1=0) self.msg.setText("Fitting fn :\noff+amp*exp(-damp*x)*sin(x*freq+ph)") self.Params=[]
def __init__(self, parent=None,**kwargs): super(AppWindow, self).__init__(parent) self.setupUi(self) self.I=kwargs.get('I',None) self.IMU = MPU6050.connect(self.I.I2C) from PSL.analyticsClass import analyticsClass self.CC = analyticsClass() self.setWindowTitle(self.I.H.version_string+' : '+params.get('name','').replace('\n',' ') ) self.plot1=self.add2DPlot(self.plot_area) labelStyle = {'color': 'rgb(255,255,255)', 'font-size': '11pt'} self.plot1.setLabel('left','Acceleration -->', units='V',**labelStyle) self.plot1.setLabel('bottom','Time -->', units='S',**labelStyle) self.tg=2000 self.tgLabel.setText(str(2000*self.tg*1e-3)+'mS') self.curveGx = self.addCurve(self.plot1,'Gx') self.curveGy = self.addCurve(self.plot1,'Gy') self.curveGz = self.addCurve(self.plot1,'Gz') self.plot2 = self.addAxis(self.plot1) self.curveAx = self.addCurve(self.plot2,'Ax') self.curveAy = self.addCurve(self.plot2,'Ay') self.curveAz = self.addCurve(self.plot2,'Az') self.curves = [self.curveAx,self.curveAy,self.curveAz,self.curveGx,self.curveGy,self.curveGz] self.curveNames=['Ax','Ay','Az','Gx','Gy','Gz'] self.legend=self.plot1.addLegend(offset=(-10,30)) for a in range(6): self.legend.addItem(self.curves[a],self.curveNames[a]) self.datasets = [[],[],[],[],[],[]] self.looptimer=QtCore.QTimer() self.region = pg.LinearRegionItem([self.tg*50*1e-6,self.tg*800*1e-6]) self.region.setZValue(-10) self.plot1.addItem(self.region) self.lognum=0 self.msg.setText("Fitting fn :\noff+amp*exp(-damp*x)*sin(x*freq+ph)") self.Params=[]
def __init__(self, parent=None,**kwargs): super(AppWindow, self).__init__(parent) self.setupUi(self) self.I=kwargs.get('I',None) self.CC = analyticsClass() self.setWindowTitle(self.I.H.version_string+' : '+params.get('name','').replace('\n',' ') ) self.plot=self.add2DPlot(self.plot_area) labelStyle = {'color': 'rgb(255,255,255)', 'font-size': '11pt'} self.plot.setLabel('left','Voltage -->', units='V',**labelStyle) self.plot.setLabel('bottom','Time -->', units='S',**labelStyle) self.plot.setYRange(-8.5,8.5) self.tg=100 self.tgLabel.setText(str(5000*self.tg*1e-3)+'S') self.x=[] self.CParams=[0,0,0,0,0] self.FitTable.setHorizontalHeaderLabels(['Amp','Freq','Phase','Offset','Damping']) for a in range(5): item = QtGui.QTableWidgetItem() self.FitTable.setItem(0,a,item) item.setText('Nil') self.curveCH1 = self.addCurve(self.plot,'CH3') self.CH1Fit = self.addCurve(self.plot,'CH3 Fit') self.region = pg.LinearRegionItem([self.tg*50*1e-6,self.tg*800*1e-6]) self.region.setZValue(-10) self.plot.addItem(self.region) self.msg.setText("Function:offset+A*exp(-damp*x)*sin(x*freq+ph)") self.running=True self.Params=[] self.looptimer=QtCore.QTimer() self.looptimer.timeout.connect(self.updateProgress) self.I.set_w1(1)
def __init__(self, removable=True, *args, **kwargs): super(LinearRegionItem, self).__init__(*args, **kwargs) self.menu = None self.removable = removable self.deletable = removable
def __init__(self, *args, **kwargs): pg.LinearRegionItem.__init__(self, *args, **kwargs) for l in self.lines: l.setCursor(Qt.SizeHorCursor) self.setZValue(10) color = QColor(Qt.red) color.setAlphaF(0.05) self.setBrush(pg.mkBrush(color))
def __init__(self, parent=None,**kwargs): super(AppWindow, self).__init__(parent) self.setupUi(self) self.I=kwargs.get('I',None) self.I.__ignoreCalibration__() self.table = myTable() self.tableLayout.addWidget(self.table) #Reset existing calibration in software! self.reset() self.hexid = hex(self.I.device_id()) self.setWindowTitle(self.I.generic_name + ' : '+self.I.H.version_string.decode("utf-8")+' : '+self.hexid) #Check DIO and freq counter for a in ['SQR1','SQR2','SQR3','SQR4']: x = {'SQR1':0,'SQR2':0,'SQR3':0,'SQR4':0} x[a]=1 self.I.set_state(**x) time.sleep(0.1) self.I.sqrPWM(10000,0.5,0,0.5,0,0.5,0,0.5) for a in ['ID1','ID2','ID3','ID4','CNTR']: if abs(self.I.get_freq(a,0.2)-10000)>2: self.setWindowTitle('D/IO error!!!!!!!!!!!!!!!!!!!!!!!' + ' : '+self.hexid) self.I.set_state(SQR1=0,SQR2=0,SQR3=0,SQR4=0) self.plot=self.add2DPlot(self.plot_area) self.plot=self.add2DPlot(self.plot_area) labelStyle = {'color': 'rgb(255,255,255)', 'font-size': '11pt'} self.plot.setLabel('left','Error -->', units='V',**labelStyle) self.plot.setLabel('bottom','Actual Voltage -->', units='V',**labelStyle) self.plot.setYRange(-.06,.06) self.region = pg.LinearRegionItem([-1.,1.]) self.region.setZValue(-10) self.plot.addItem(self.region) self.opendir = QtGui.QPushButton('open') self.opendir.clicked.connect(self.loadDir) self.WidgetLayout.addWidget(self.opendir) self.uploadButton = QtGui.QPushButton('Upload') self.uploadButton.clicked.connect(self.uploadCalibration) self.WidgetLayout.addWidget(self.uploadButton) self.results={} self.DAC_POLYS=[] self.INL_SLOPE=0 self.INL_INTERCEPT=0 self.adc_shifts=[] self.DAC_FILES=[] self.DAC_TABLES=[] self.dirname = '' self.ADDITIONAL_FILE = 'CAP_PCS.csv'
def setup(self): self.settings.New('spec_index', dtype=int, initial=0) self.settings.spec_index.add_listener(self.on_spec_index_change) self.ui = QtWidgets.QGroupBox() self.ui.setLayout(QtWidgets.QVBoxLayout()) self.ui.spec_index_doubleSpinBox = QtWidgets.QDoubleSpinBox() self.settings.spec_index.connect_bidir_to_widget(self.ui.spec_index_doubleSpinBox) self.ui.layout().addWidget(self.ui.spec_index_doubleSpinBox) self.graph_layout = pg.GraphicsLayoutWidget() self.ui.layout().addWidget(self.graph_layout) self.power_plot = self.graph_layout.addPlot() self.power_plot.setLogMode(x=True, y=True) self.power_plotcurve = self.power_plot.plot([1],[1], name='Data') self.power_fit_plotcurve = self.power_plot.plot([1],[1],pen='r', name='Fit') self.power_plot_arrow = pg.ArrowItem() self.power_plot_arrow.setPos(0,0) self.power_plot.addItem(self.power_plot_arrow) self.power_plot_lr = pg.LinearRegionItem([1,2]) self.power_plot_lr.setZValue(-10) self.power_plot.addItem(self.power_plot_lr) self.power_plot_lr.sigRegionChanged.connect(self.redo_fit) #self.power_plot_legend = pg.LegendItem() #self.power_plot.addItem(self.power_plot_legend) #self.power_plot_legend.addItem(self.power_plotcurve) #self.power_plot_legend.addItem(self.power_fit_plotcurve) self.fit_text = pg.TextItem("fit") self.fit_text.setParentItem(self.power_plot_lr, ) self.graph_layout.nextRow() self.spec_plot = self.graph_layout.addPlot() self.spec_plotcurve = self.spec_plot.plot([0])
def plot_trace(self): event_time = self.filtered_catalog.utc_timestamp.values[self.event_idx] self.statusBar.showMessage('Event {} of {}: {}'.format( self.event_idx+1, self.num_events, utc.UTCDateTime(event_time))) window_sz = 20 # in sec utc_time = utc.UTCDateTime(event_time) start = utc_time end = utc_time+window_sz local_stream = self.stream.slice(start, end) local_stream.filter('highpass', freq=2.0) sample_rate = local_stream[0].stats.sampling_rate npts = local_stream[0].stats.npts event_sample = (utc_time-start)*sample_rate n_traces = len(local_stream) n_samples = len(local_stream[0].data) data = np.zeros((n_traces, n_samples), dtype=np.float32) for i in range(n_traces): data[i, :] = local_stream[i].data[...] mean = np.mean(data[i, :]) data[i, :] -= mean self.trace_x.clear() self.trace_y.clear() self.trace_z.clear() self.trace_x.plot(data[0, :], pen=(255,120,120,200)) self.trace_y.plot(data[1, :], pen=(120,255,120,200)) self.trace_z.plot(data[2, :], pen=(120,120,255,200)) self.lrx = pg.LinearRegionItem([event_sample,event_sample+sample_rate*1]) self.lrx.setZValue(-10) self.trace_x.addItem(self.lrx) # lry = pg.LinearRegionItem([400,700]) # lry.setZValue(-10) # self.trace_y.addItem(lry) # # lrz = pg.LinearRegionItem([400,700]) # lrz.setZValue(-10) # self.trace_z.addItem(lrz) # # regions = [lrx, lry, lrz] # # def updateRange(lr, regions): # for l in regions: # if l != lr: # l.setRegion(lr.getRegion()) # # # for l in regions: # lrx.sigRegionChanged.connect(lambda : updateRange(lrx, regions)) # lry.sigRegionChanged.connect(lambda : updateRange(lry, regions)) # lrz.sigRegionChanged.connect(lambda : updateRange(lrz, regions))
