class QwtPlotE(QwtPlot):
"""a slightly enhanced version of QwtPlot which already has some sugar on it"""
def __init__(self, *arg):
QwtPlot.__init__(self, *arg)
self.plotLayout().setAlignCanvasToScales(True)
self.setCanvasBackground(Qt.white)
self.legend = QwtLegend()
self.legend.setItemMode(QwtLegend.ClickableItem)
self.insertLegend(self.legend, QwtPlot.TopLegend)
self.grid = QwtPlotGrid()
self.grid.attach(self)
self.grid.setPen(QPen(Qt.black, 0, Qt.DotLine))
self.zoomer = QwtPlotZoomer(QwtPlot.xBottom, QwtPlot.yLeft, QwtPicker.DragSelection,
QwtPicker.AlwaysOn, self.canvas())
self.zoomer.setRubberBandPen(QPen(Qt.green))
self.zoomer.setTrackerPen(QPen(Qt.red))
self.magnifier = QwtPlotMagnifier(self.canvas())
self.panner = QwtPlotPanner(self.canvas())
self.panner.setMouseButton(Qt.LeftButton, Qt.ControlModifier)
self.connect(self, SIGNAL("legendClicked(QwtPlotItem*)"), self.togglePlotItemVisibility)
def togglePlotItemVisibility(self, plotItem):
"""Toggle the visibility of a plot item"""
plotItem.setVisible(not plotItem.isVisible())
self.replot()
def __init__(self, spurset, fef, parent):
chart.__init__(self, spurset, fef, parent)
self.plot = QwtPlot(parent)
self.plot.setAxisScale(xaxis, self.spurset.RFmin, self.spurset.RFmax)
self.plot.setAxisScale(yaxis, -self.spurset.dspan / 2,
self.spurset.dspan / 2)
self.plot.setCanvasBackground(Qt.white)
grid = QwtPlotGrid()
grid.setMajPen(QPen(Qt.black, 1, Qt.DotLine))
grid.attach(self.plot)
self.plot.insertLegend(QwtLegend(self.parent), QwtPlot.ExternalLegend)
# a picker to be used for the front-end filter parallelogram
self.picker = QwtPlotPicker(xaxis, yaxis, QwtPicker.PointSelection,
QwtPlotPicker.NoRubberBand,
QwtPicker.AlwaysOff, self.plot.canvas())
# gonna need this to implement ondrop()
self._mouseRelease = self.picker.widgetMouseReleaseEvent
self._picked_obj = None
self.picker.connect(self.picker, SIGNAL('appended(const QPoint&)'),
self.onpick)
self.picker.connect(self.picker, SIGNAL('moved(const QPoint&)'),
self.ondrag)
# all about the monkey-patching
self.picker.widgetMouseReleaseEvent = self.ondrop
def __init__(self, parent):
QwtPlot.__init__(self, parent)
self.variables = []
self.insertLegend(QwtLegend(self), QwtPlot.TopLegend)
self.setCanvasBackground(Qt.white)
self.magnifier = QwtPlotMagnifier(self.canvas())
self.magnifier.setAxisEnabled(QwtPlot.xBottom, False)
self.magnifier.setAxisEnabled(QwtPlot.yLeft, True)
self.panner = QwtPlotPanner(self.canvas())
self.panner.setAxisEnabled(QwtPlot.xBottom, False)
self.panner.setAxisEnabled(QwtPlot.yLeft, True)
def add_plot(self, name, units):
# legend
legend = QwtLegend()
legend.setFrameStyle(Qt.QFrame.Box | Qt.QFrame.Sunken)
legend.setItemMode(QwtLegend.ClickableItem)
# plot
plot = QwtPlot(self)
plot.setTitle(name.upper())
plot.setObjectName(name)
plot.setCanvasBackground(Qt.Qt.white)
plot.setAxisTitle(QwtPlot.xBottom, "time [s]")
plot.insertLegend(legend, QwtPlot.RightLegend)
plot.time = deque(maxlen=MAX_LENGTH)
plot.data = []
plot.curves = []
for i, unit in enumerate(units):
position = QwtPlot.yLeft if i == 0 else QwtPlot.yRight
curve = QwtPlotCurve(LEGENDS[unit])
curve.setPen(Qt.QPen(self.next_color(), 2))
curve.setYAxis(position)
curve.attach(plot)
plot.enableAxis(position)
plot.setAxisTitle(position, unit)
plot.curves.append(curve)
plot.data.append(deque(maxlen=MAX_LENGTH))
self.vertical_layout.addWidget(plot)
self._plots[name] = plot
def outTIF(self, plotWidget, d_folder, name, title):
if d_folder:
fileName = os.path.join(d_folder, name + '.tif')
else:
if self.settings.value('lastOutputDir'):
folder = self.settings.value('lastOutputDir')
else:
folder = self.settings.value('projFolder')
fileName = QFileDialog.getSaveFileName(
caption="Save Plot As .tif file",
directory=folder,
filter="Tagged Image File Format (*.tif;*.tiff)")
fileName = toUnicode(fileName)
if fileName:
if not title:
title = self.settings.value('figureTitle')
plotWidget.setTitle(title)
pix = QPixmap(QSize(600, 400))
sh = QBrush(pix)
sh.setColor(Qt.white)
sh.setStyle(Qt.SolidPattern)
painter = QPainter()
painter.begin(pix)
painter.setBrush(sh)
painter.drawRect(0, 0, 600, 400)
painter.end()
legend = QwtLegend()
plotWidget.insertLegend(legend)
plotWidget.setAxisTitle(QwtPlot.xBottom,
self.settings.value('xAxisTitle'))
plotWidget.setAxisTitle(QwtPlot.yLeft,
self.settings.value('yAxisTitle'))
QSettings().setValue("lastOutputDir", os.path.dirname(fileName))
filter = QwtPlotPrintFilter()
filter.setOptions(QwtPlotPrintFilter.PrintAll
& ~QwtPlotPrintFilter.PrintBackground)
plotWidget.print_(pix, filter)
pix.save(fileName)
plotWidget.insertLegend(None)
plotWidget.setAxisTitle(QwtPlot.xBottom, None)
plotWidget.setAxisTitle(QwtPlot.yLeft, None)
plotWidget.setTitle(None)
def __init__(self, *arg):
QwtPlot.__init__(self, *arg)
self.plotLayout().setAlignCanvasToScales(True)
self.setCanvasBackground(Qt.white)
self.legend = QwtLegend()
self.legend.setItemMode(QwtLegend.ClickableItem)
self.insertLegend(self.legend, QwtPlot.TopLegend)
self.grid = QwtPlotGrid()
self.grid.attach(self)
self.grid.setPen(QPen(Qt.black, 0, Qt.DotLine))
self.zoomer = QwtPlotZoomer(QwtPlot.xBottom, QwtPlot.yLeft, QwtPicker.DragSelection,
QwtPicker.AlwaysOn, self.canvas())
self.zoomer.setRubberBandPen(QPen(Qt.green))
self.zoomer.setTrackerPen(QPen(Qt.red))
self.magnifier = QwtPlotMagnifier(self.canvas())
self.panner = QwtPlotPanner(self.canvas())
self.panner.setMouseButton(Qt.LeftButton, Qt.ControlModifier)
self.connect(self, SIGNAL("legendClicked(QwtPlotItem*)"), self.togglePlotItemVisibility)
def outSVG(self, plotWidget, d_folder, name, title):
if d_folder:
fileName = os.path.join(d_folder, name + '.svg')
else:
if self.settings.value('lastOutputDir'):
folder = self.settings.value('lastOutputDir')
else:
folder = self.settings.value('projFolder')
fileName = QFileDialog.getSaveFileName(
caption="Save Plot As .svg file",
directory=folder,
filter="Scalable Vector Graphics(*.svg)")
fileName = toUnicode(fileName)
if fileName:
pix = QSvgGenerator()
pix.setFileName(fileName)
pix.setSize(QSize(600, 400))
if not title:
title = self.settings.value('figureTitle')
plotWidget.setTitle(title)
legend = QwtLegend()
plotWidget.insertLegend(legend)
plotWidget.setAxisTitle(QwtPlot.xBottom,
self.settings.value('xAxisTitle'))
plotWidget.setAxisTitle(QwtPlot.yLeft,
self.settings.value('yAxisTitle'))
QSettings().setValue("lastOutputDir", os.path.dirname(fileName))
filter = QwtPlotPrintFilter()
filter.setOptions(QwtPlotPrintFilter.PrintAll
& ~QwtPlotPrintFilter.PrintBackground)
plotWidget.print_(pix, filter)
plotWidget.insertLegend(None)
plotWidget.setAxisTitle(QwtPlot.xBottom, None)
plotWidget.setAxisTitle(QwtPlot.yLeft, None)
plotWidget.setTitle(None)
