So I tried this: x = [x for x in range(1000)] y = [x for x in range(1000)] plotWidget = pg.PlotWidget(title="Ph") plotWidget.setBackgroundBrush(QtGui.QBrush(QtCore.Qt.transparent, QtCore.Qt.NoBrush)) self._tab_layout.addWidget(plotWidget, 0, 0) t = plotWidget.plot(x, y)
But the background is still white. I removed all the viewBox stuff and the set colors. I mean, this is very weird. If the plot accepts colors for pen and background in the format of RGBa, why wouldn't the transperency do the trick? I have also tried using just plotItem, without the widget, but I wasn't able to add it to the layout so I couldn't really finish the test. Thanks for your time man, I appreciate! Cheers, Il giorno sabato 11 aprile 2020 19:42:31 UTC+2, Israel Brewster ha scritto: > > No, I mis-spoke with that. I took another look at my code, and realized > that I’m not doing *anything* with the view box. So try just doing the > setBackgroudBrush on the plotWidget, but *don’t* set the background color > on the view box at all. If that doesn’t work, then I’m probably missing > something somewhere else in my code that does it… > > --- > Israel Brewster > Software Engineer > Alaska Volcano Observatory > Geophysical Institute - UAF > 2156 Koyukuk Drive > Fairbanks AK 99775-7320 > Work: 907-474-5172 > cell: 907-328-9145 > > On Apr 11, 2020, at 8:37 AM, Daniele Dolci <[email protected] > <javascript:>> wrote: > > Thanks for the fast reply! > > I tried to add that line but didn't work. I then tried to apply it to the > plot item and to the view box, but on both I get the error: > > plotWidget.getViewBox().setBackgroundBrush(QtGui.QBrush(QtCore.Qt.transparent, > > QtCore.Qt.NoBrush)) > AttributeError: 'ViewBox' object has no attribute 'setBackgroundBrush' > > Maybe I misunderstood what you meant by doing the same for the ViewBox? > > Thanks again! > > > Il giorno sabato 11 aprile 2020 18:20:06 UTC+2, Israel Brewster ha scritto: >> >> Try: >> >> plotWidget.setBackgroundBrush(QBrush(Qt.transparent, Qt.NoBrush)) >> >> There may be some other code needed as well, but that’s at least part of >> it. you *may* need to do the same for the view box. So you had the right >> idea, but perhaps not quite right? >> --- >> Israel Brewster >> Software Engineer >> Alaska Volcano Observatory >> Geophysical Institute - UAF >> 2156 Koyukuk Drive >> Fairbanks AK 99775-7320 >> Work: 907-474-5172 >> cell: 907-328-9145 >> >> On Apr 11, 2020, at 8:11 AM, Daniele Dolci <[email protected]> wrote: >> >> Hi! >> >> I have a main widget with a layout and a gradient as background. I want >> to add a series of plots with transperent background (basically I would >> like to only draw the foreground). I am having hardtimes making the >> background of the plot transperent. I tried lot of things, with this code I >> was expecting that I would be making all transparent, but it is actually >> white: >> >> x = [x for x in range(1000)] >> y = [x for x in range(1000)] >> plotWidget = pg.PlotWidget(title="Ph") >> plotWidget.setBackground((0, 0, 0, 0)) >> plotWidget.getViewBox().setBackgroundColor((0, 0, 0, 0)) >> self._tab_layout.addWidget(plotWidget, 0, 0) >> pen = pg.mkPen(color=(255, 0, 0)) >> t = plotWidget.plot(x, y, pen=pen) >> t.getViewBox().setBackgroundColor((0, 0, 0, 0)) >> >> >> So it looks like this, and I would: >> >> <plot1.jpg> >> >> And I would like to have it drawn on this background instead: >> >> <plot2.jpg> >> >> >> Any idea how to fix this? >> >> Thanks! >> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "pyqtgraph" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/pyqtgraph/2e9b649e-dc5e-4a92-ad3f-b6b9cfb6226d%40googlegroups.com >> >> <https://groups.google.com/d/msgid/pyqtgraph/2e9b649e-dc5e-4a92-ad3f-b6b9cfb6226d%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> <plot1.jpg><plot2.jpg> >> >> >> > -- > You received this message because you are subscribed to the Google Groups > "pyqtgraph" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected] <javascript:>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/pyqtgraph/3c60ca81-99f3-4c4c-9a4e-7cd22d7f9335%40googlegroups.com > > <https://groups.google.com/d/msgid/pyqtgraph/3c60ca81-99f3-4c4c-9a4e-7cd22d7f9335%40googlegroups.com?utm_medium=email&utm_source=footer> > . > > > -- You received this message because you are subscribed to the Google Groups "pyqtgraph" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/pyqtgraph/4c71a8d2-5d8c-41a7-a3d2-e5a9dc106117%40googlegroups.com.
