def make():
# create a plot with a white canvas
demo = QwtPlot(QwtText("Errorbar Demonstation"))
demo.setCanvasBackground(Qt.white)
demo.plotLayout().setAlignCanvasToScales(True)
grid = QwtPlotGrid()
grid.attach(demo)
grid.setPen(QPen(Qt.black, 0, Qt.DotLine))
# calculate data and errors for a curve with error bars
x = np.arange(0, 10.1, 0.5, np.float)
y = np.sin(x)
dy = 0.2 * abs(y)
# dy = (0.15 * abs(y), 0.25 * abs(y)) # uncomment for asymmetric error bars
dx = 0.2 # all error bars the same size
errorOnTop = False # uncomment to draw the curve on top of the error bars
# errorOnTop = True # uncomment to draw the error bars on top of the curve
curve = ErrorBarPlotCurve(
x=x,
y=y,
dx=dx,
dy=dy,
curvePen=QPen(Qt.black, 2),
curveSymbol=QwtSymbol(QwtSymbol.Ellipse, QBrush(Qt.red),
QPen(Qt.black, 2), QSize(9, 9)),
errorPen=QPen(Qt.blue, 2),
errorCap=10,
errorOnTop=errorOnTop,
)
curve.attach(demo)
demo.resize(640, 480)
demo.show()
return demo
def make():
# create a plot with a white canvas
demo = QwtPlot(QwtText("Errorbar Demonstation"))
demo.setCanvasBackground(Qt.white)
demo.plotLayout().setAlignCanvasToScales(True)
grid = QwtPlotGrid()
grid.attach(demo)
grid.setPen(QPen(Qt.black, 0, Qt.DotLine))
# calculate data and errors for a curve with error bars
x = np.arange(0, 10.1, 0.5, np.float)
y = np.sin(x)
dy = 0.2 * abs(y)
# dy = (0.15 * abs(y), 0.25 * abs(y)) # uncomment for asymmetric error bars
dx = 0.2 # all error bars the same size
errorOnTop = False # uncomment to draw the curve on top of the error bars
# errorOnTop = True # uncomment to draw the error bars on top of the curve
curve = ErrorBarPlotCurve(
x = x,
y = y,
dx = dx,
dy = dy,
curvePen = QPen(Qt.black, 2),
curveSymbol = QwtSymbol(QwtSymbol.Ellipse,
QBrush(Qt.red),
QPen(Qt.black, 2),
QSize(9, 9)),
errorPen = QPen(Qt.blue, 2),
errorCap = 10,
errorOnTop = errorOnTop,
)
curve.attach(demo)
demo.resize(640, 480)
demo.show()
return demo
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()
