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()