def make(): demo = QwtPlot() demo.setCanvasBackground(Qt.white) demo.setTitle("Histogram") grid = QwtPlotGrid() grid.enableXMin(True) grid.enableYMin(True) grid.setMajorPen(QPen(Qt.black, 0, Qt.DotLine)) grid.setMinorPen(QPen(Qt.gray, 0, Qt.DotLine)) grid.attach(demo) histogram = HistogramItem() histogram.setColor(Qt.darkCyan) numValues = 20 samples = [] pos = 0.0 for i in range(numValues): width = 5 + random.randint(0, 4) value = random.randint(0, 99) samples.append(QwtIntervalSample(value, QwtInterval(pos, pos + width))) pos += width histogram.setData(QwtIntervalSeriesData(samples)) histogram.attach(demo) demo.setAxisScale(QwtPlot.yLeft, 0.0, 100.0) demo.setAxisScale(QwtPlot.xBottom, 0.0, pos) demo.replot() demo.resize(600, 400) demo.show() return demo
class NewGraph(): def __init__(self): self.curves = [] self.titleFont = QFont("Helvetica", 12, QFont.Bold) self.axisFont = QFont("Helvetica", 11, QFont.Bold) def createGraph(self): self.plot = QwtPlot() self.plot.resize(1000, 1000) self.plot.setAxisScaleDraw(QwtPlot.xBottom, DateTimeTimeScaleDraw(names=False)) self.plot.replot() self.plot.show() def createCurve(self, x, y, colour): curve = QwtPlotCurve() colour = QColor(colour) curve.setPen(colour) curve.setData(x, y) curve.attach(self.plot) #self.plot.replot() self.curves.append(curve) def removeCurve(self, curveIndex): self.curves[curveIndex].attach(0) del self.curves[curveIndex] def setAxisTitles(self, yAxis, xAxis): # Create text for graph and axis titles xTitle = QwtText() xTitle.setText(xAxis) xTitle.setFont(self.axisFont) yTitle = QwtText() yTitle.setText(yAxis) yTitle.setFont(self.axisFont) self.plot.setAxisTitle(self.plot.yLeft, yTitle) self.plot.setAxisTitle(self.plot.xBottom, xTitle) def setTitle(self, title): titleText = QwtText() titleText.setText(title) titleText.setFont(self.titleFont) self.plot.setTitle(titleText)
def __init__(self, *args): QWidget.__init__(self, *args) layout = QGridLayout(self) # try to create a plot for SciPy arrays # make a curve and copy the data numpy_curve = QwtPlotCurve('y = lorentzian(x)') x = np.arange(0.0, 10.0, 0.01) y = lorentzian(x) numpy_curve.setData(x, y) # here, we know we can plot NumPy arrays numpy_plot = QwtPlot(self) numpy_plot.setTitle('numpy array') numpy_plot.setCanvasBackground(Qt.white) numpy_plot.plotLayout().setCanvasMargin(0) numpy_plot.plotLayout().setAlignCanvasToScales(True) # insert a curve and make it red numpy_curve.attach(numpy_plot) numpy_curve.setPen(QPen(Qt.red)) layout.addWidget(numpy_plot, 0, 0) numpy_plot.replot() # create a plot widget for lists of Python floats list_plot = QwtPlot(self) list_plot.setTitle('Python list') list_plot.setCanvasBackground(Qt.white) list_plot.plotLayout().setCanvasMargin(0) list_plot.plotLayout().setAlignCanvasToScales(True) x = drange(0.0, 10.0, 0.01) y = [lorentzian(item) for item in x] # insert a curve, make it red and copy the lists list_curve = QwtPlotCurve('y = lorentzian(x)') list_curve.attach(list_plot) list_curve.setPen(QPen(Qt.red)) list_curve.setData(x, y) layout.addWidget(list_plot, 0, 1) layout.addWidget(DataPlot(self),1,1) layout.addWidget(3dstl(self), 1, 0) list_plot.replot()
def __init__(self, *args): QWidget.__init__(self, *args) layout = QGridLayout(self) # try to create a plot for SciPy arrays # make a curve and copy the data numpy_curve = QwtPlotCurve('y = lorentzian(x)') x = np.arange(0.0, 10.0, 0.01) y = lorentzian(x) numpy_curve.setData(x, y) # here, we know we can plot NumPy arrays numpy_plot = QwtPlot(self) numpy_plot.setTitle('numpy array') numpy_plot.setCanvasBackground(Qt.white) numpy_plot.plotLayout().setCanvasMargin(0) numpy_plot.plotLayout().setAlignCanvasToScales(True) # insert a curve and make it red numpy_curve.attach(numpy_plot) numpy_curve.setPen(QPen(Qt.red)) layout.addWidget(numpy_plot, 0, 0) numpy_plot.replot() # create a plot widget for lists of Python floats list_plot = QwtPlot(self) list_plot.setTitle('Python list') list_plot.setCanvasBackground(Qt.white) list_plot.plotLayout().setCanvasMargin(0) list_plot.plotLayout().setAlignCanvasToScales(True) x = drange(0.0, 10.0, 0.01) y = [lorentzian(item) for item in x] # insert a curve, make it red and copy the lists list_curve = QwtPlotCurve('y = lorentzian(x)') list_curve.attach(list_plot) list_curve.setPen(QPen(Qt.red)) list_curve.setData(x, y) layout.addWidget(list_plot, 0, 1) list_plot.replot()
class MapDemo(QMainWindow): def __init__(self, *args): QMainWindow.__init__(self, *args) self.plot = QwtPlot(self) self.plot.setTitle("A Simple Map Demonstration") self.plot.setCanvasBackground(Qt.white) self.plot.setAxisTitle(QwtPlot.xBottom, "x") self.plot.setAxisTitle(QwtPlot.yLeft, "y") self.plot.setAxisScale(QwtPlot.xBottom, 0.0, 1.0) self.plot.setAxisScale(QwtPlot.yLeft, 0.0, 1.0) self.setCentralWidget(self.plot) # Initialize map data self.count = self.i = 1000 self.xs = np.zeros(self.count, np.float) self.ys = np.zeros(self.count, np.float) self.kappa = 0.2 self.curve = QwtPlotCurve("Map") self.curve.attach(self.plot) self.curve.setSymbol( QwtSymbol(QwtSymbol.Ellipse, QBrush(Qt.red), QPen(Qt.blue), QSize(5, 5))) self.curve.setPen(QPen(Qt.cyan)) toolBar = QToolBar(self) self.addToolBar(toolBar) # 1 tick = 1 ms, 10 ticks = 10 ms (Linux clock is 100 Hz) self.ticks = 10 self.tid = self.startTimer(self.ticks) self.timer_tic = None self.user_tic = None self.system_tic = None self.plot.replot() def setTicks(self, ticks): self.i = self.count self.ticks = int(ticks) self.killTimer(self.tid) self.tid = self.startTimer(ticks) def resizeEvent(self, event): self.plot.resize(event.size()) self.plot.move(0, 0) def moreData(self): if self.i == self.count: self.i = 0 self.x = random.random() self.y = random.random() self.xs[self.i] = self.x self.ys[self.i] = self.y self.i += 1 chunks = [] self.timer_toc = time.time() if self.timer_tic: chunks.append("wall: %s s." % (self.timer_toc - self.timer_tic)) print(' '.join(chunks)) self.timer_tic = self.timer_toc else: self.x, self.y = standard_map(self.x, self.y, self.kappa) self.xs[self.i] = self.x self.ys[self.i] = self.y self.i += 1 def timerEvent(self, e): self.moreData() self.curve.setData(self.xs[:self.i], self.ys[:self.i]) self.plot.replot()
class MapDemo(QMainWindow): def __init__(self, *args): QMainWindow.__init__(self, *args) self.plot = QwtPlot(self) self.plot.setTitle("A Simple Map Demonstration") self.plot.setCanvasBackground(Qt.white) self.plot.setAxisTitle(QwtPlot.xBottom, "x") self.plot.setAxisTitle(QwtPlot.yLeft, "y") self.plot.setAxisScale(QwtPlot.xBottom, 0.0, 1.0) self.plot.setAxisScale(QwtPlot.yLeft, 0.0, 1.0) self.setCentralWidget(self.plot) # Initialize map data self.count = self.i = 1000 self.xs = np.zeros(self.count, np.float) self.ys = np.zeros(self.count, np.float) self.kappa = 0.2 self.curve = QwtPlotCurve("Map") self.curve.attach(self.plot) self.curve.setSymbol(QwtSymbol(QwtSymbol.Ellipse, QBrush(Qt.red), QPen(Qt.blue), QSize(5, 5))) self.curve.setPen(QPen(Qt.cyan)) toolBar = QToolBar(self) self.addToolBar(toolBar) # 1 tick = 1 ms, 10 ticks = 10 ms (Linux clock is 100 Hz) self.ticks = 10 self.tid = self.startTimer(self.ticks) self.timer_tic = None self.user_tic = None self.system_tic = None self.plot.replot() def setTicks(self, ticks): self.i = self.count self.ticks = int(ticks) self.killTimer(self.tid) self.tid = self.startTimer(ticks) def resizeEvent(self, event): self.plot.resize(event.size()) self.plot.move(0, 0) def moreData(self): if self.i == self.count: self.i = 0 self.x = random.random() self.y = random.random() self.xs[self.i] = self.x self.ys[self.i] = self.y self.i += 1 chunks = [] self.timer_toc = time.time() if self.timer_tic: chunks.append("wall: %s s." % (self.timer_toc-self.timer_tic)) print(' '.join(chunks)) self.timer_tic = self.timer_toc else: self.x, self.y = standard_map(self.x, self.y, self.kappa) self.xs[self.i] = self.x self.ys[self.i] = self.y self.i += 1 def timerEvent(self, e): self.moreData() self.curve.setData(self.xs[:self.i], self.ys[:self.i]) self.plot.replot()
class FermentGraph(QWidget): _logname = 'FermentGraphGeneric' _log = logging.getLogger(f'{_logname}') def __init__(self, database, parent=None): super().__init__(parent) self.db = database self.updateTimer = QTimer(self) self.updateTimer.start(5000) self.plot = QwtPlot() self.curve = QwtPlotCurve() self.curve.attach(self.plot) self.plot.resize(1000, 1000) self.plot.show() self.plot.setAxisScaleDraw(QwtPlot.xBottom, DateTimeTimeScaleDraw()) axisFont = QFont("Helvetica", 11, QFont.Bold) titleFont = QFont("Helvetica", 12, QFont.Bold) xTitle = QwtText() xTitle.setText("Time") xTitle.setFont(axisFont) self.plot.setAxisTitle(self.plot.xBottom, xTitle) self.yTitle = QwtText() self.yTitle.setFont(axisFont) self.plot.setAxisTitle(self.plot.yLeft, self.yTitle) self.titleText = QwtText() self.titleText.setFont(titleFont) self.plot.setTitle(self.titleText) mainLayout = QHBoxLayout() mainLayout.addWidget(self.plot) self.setLayout(mainLayout) self.plot.show() self.results = [] self.batchID = None def updatePlot(self, variable): if self.batchID is not None: self.db.flushTables() sql = f"SELECT TimeStamp, {variable} FROM Ferment WHERE BatchID = '{self.batchID}'" timestamps = [] self.results = [] for data in self.db.custom(sql)[1:]: timestamps.append(data[0]) self.results.append(data[1]) startTime = timestamps[0] for i in range(len(timestamps)): timestamps[i] = (timestamps[i] - startTime).seconds # self.plot.setAxisScaleDraw(QwtPlot.xBottom, TimeScaleDraw()) self.curve.setData(timestamps, self.results) self.plot.replot() self.plot.show() def changeTank(self, tankID): self.titleText.setText(f"Fermentation Tank: {tankID}")