def populate(self):
colors = [colours["DarkOrchid"], colours["SteelBlue"], colours["Gold"]]
numSamples = 5
numBars = len(colors)
titles = []
for i in range(numBars):
titles.append(Qwt.QwtText("Bar %d" % i))
self.d_barChartItem.setBarTitles(titles)
self.d_barChartItem.setLegendIconSize(QSize(10, 14))
for i in range(numBars):
symbol = Qwt.QwtColumnSymbol(Qwt.QwtColumnSymbol.Box)
symbol.setLineWidth(2)
symbol.setFrameStyle(Qwt.QwtColumnSymbol.Raised)
symbol.setPalette(QPalette(colors[i]))
self.d_barChartItem.setSymbol(i, symbol)
self.series = []
for i in range(numSamples):
values = []
for j in range(numBars):
values.append(2.0 + random.randint(0, 8) % 8)
self.series.append(values)
print(self.series)
self.d_barChartItem.setSamples(self.series)
def setMode(self, mode):
#QwtPlotItemList
#print("Set mode %d"%mode)
items = self.itemList(Qwt.QwtPlotItem.Rtti_PlotHistogram)
for i in range(len(items)):
histogram = items[i]
if (mode < 3):
histogram.setStyle(mode)
histogram.setSymbol(None)
pen = QPen(Qt.black, 0)
if (mode == Qwt.QwtPlotHistogram.Lines):
pen.setBrush(histogram.brush())
histogram.setPen(pen)
else:
histogram.setStyle(Qwt.QwtPlotHistogram.Columns)
symbol = Qwt.QwtColumnSymbol(Qwt.QwtColumnSymbol.Box)
symbol.setFrameStyle(Qwt.QwtColumnSymbol.Raised)
symbol.setLineWidth(2)
symbol.setPalette(QPalette(histogram.brush().color()))
histogram.setSymbol(symbol)