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]> 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] > <mailto:[email protected]>. > 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/230609B5-97FE-4832-A065-DEAAE153F792%40alaska.edu.
