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}")
