Interesting. As you can see from my code snipet, I didn’t have to do any of that. But as long as it works, right? :-) Good job figuring it out! --- 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 12, 2020, at 11:35 AM, Daniele Dolci <[email protected]> wrote: > > Hi! It was actually easier than I expected. A couple of css line did the > trick. Just set the objectName of the plot widget and then I could assign a > background-color: rgba(x, x, x, 0); > > > > <plots.jpg> > > > > > > Thanks anyway for the help! > > Il giorno domenica 12 aprile 2020 19:16:12 UTC+2, Israel Brewster ha scritto: > So here’s a short snippet of code that works for me to get a plot with a > transparent background: > > from PySide2.QtWidgets import QApplication, QDialog, QVBoxLayout > from PySide2.QtGui import QBrush > from PySide2.QtCore import Qt > import pyqtgraph as pg > > if __name__ == "__main__": > app=QApplication() > dialog=QDialog() > dialog.setStyleSheet('background-color:#050’) > > layout=QVBoxLayout(dialog) > dialog.setLayout(layout) > > vals=list(range(100)) > > plotWidget=pg.PlotWidget(dialog) > plotWidget.setBackgroundBrush(QBrush(Qt.transparent,Qt.NoBrush)) > plotWidget.plot(vals) > > layout.addWidget(plotWidget) > > dialog.show() > > app.exec_() > > > --- > 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 12, 2020, at 7:59 AM, Daniele Dolci <daniele...@ <>gmail.com >> <http://gmail.com/>> wrote: >> >> I understand, I appreciated the help you gave so far. Is it possible it has >> to do with some css? >> >> Thanks! >> >> Il giorno dom 12 apr 2020 alle ore 17:51 Israel Brewster <ijbre...@ >> <>alaska.edu <http://alaska.edu/>> ha scritto: >> I’ll have to find some time to go back over my code and see what I’m missing >> then, because it’s working for me. Dunno off the top of my head. Sorry! >> --- >> 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 12, 2020, at 7:22 AM, Daniele Dolci <daniele...@ <>gmail.com >>> <http://gmail.com/>> wrote: >>> >>> Hi! >>> >>> I gave it a try but still same result. I uninstalled everything with >>> >>> sudo pip3 uninstall pyqtgraph >>> >>> >>> and made sure that under dist-packages there was nothing left. Then I tried >>> to download it from source forge but with no much success, finally, as is >>> read here https://github.com/pyqtgraph/pyqtgraph >>> <https://github.com/pyqtgraph/pyqtgraph> , I used the command: >>> >>> pip install <>git <git+https://github.com/pyqtgraph/pyqtgraph@develop> <>+ >>> <git+https://github.com/pyqtgraph/pyqtgraph@develop> <>https >>> <git+https://github.com/pyqtgraph/pyqtgraph@develop> <>: >>> <git+https://github.com/pyqtgraph/pyqtgraph@develop> <>//github. >>> <git+https://github.com/pyqtgraph/pyqtgraph@develop>com/pyqtgraph/pyqtgraph@ >>> <git+https://github.com/pyqtgraph/pyqtgraph@develop>develop >>> <git+https://github.com/pyqtgraph/pyqtgraph@develop> >>> >>> or, actually, >>> >>> sudo pip3 install <>git >>> <git+https://github.com/pyqtgraph/pyqtgraph@develop> <>+ >>> <git+https://github.com/pyqtgraph/pyqtgraph@develop> <>https >>> <git+https://github.com/pyqtgraph/pyqtgraph@develop> <>: >>> <git+https://github.com/pyqtgraph/pyqtgraph@develop> <>//github. >>> <git+https://github.com/pyqtgraph/pyqtgraph@develop>com/pyqtgraph/pyqtgraph@ >>> <git+https://github.com/pyqtgraph/pyqtgraph@develop>develop >>> <git+https://github.com/pyqtgraph/pyqtgraph@develop> >>> Any other idea of what I could try? >>> >>> Cheers, >>> >>> >>> Il giorno sabato 11 aprile 2020 21:42:11 UTC+2, Daniele Dolci ha scritto: >>> Alright, tomorrow I will try download the development version then and give >>> it a try. >>> >>> I will let you know how it goes, thanks! >>> >>> Cheers, >>> >>> Il giorno sabato 11 aprile 2020 20:09:40 UTC+2, Israel Brewster ha scritto: >>> Nope, that would be the latest *release* version, which would be 0.10. I’m >>> using the latest *development* version that you can get from source forge. >>> So yeah, that *could* be why my code isn’t working for you (though I don’t >>> guarantee it). >>> >>> There have been a lot of changes between the last release and the current >>> development (like compatibility with PySide2, which is why I use the >>> development). I keep wondering when they will make a new release, but it >>> hasn’t happened yet. >>> --- >>> 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 10:06 AM, Daniele Dolci <daniele...@ <>gmail.com >>>> <http://gmail.com/>> wrote: >>>> >>>> I would assume I am on the latest version, I installed it today. One >>>> difference perhaps might be the operative system? I am using raspbian OS. >>>> >>>> To install it I used >>>> >>>> sudo apt install python3-pyqtgraph >>>> >>>> So I assume it gets the latest one, or not? >>>> >>>> Il giorno sabato 11 aprile 2020 19:58:36 UTC+2, Israel Brewster ha scritto: >>>> One thought that just occurred to me: I’m using the latest development >>>> version of pyqtgraph. Are you by any chance on the release version? That >>>> could be the difference, theoretically, if so. >>>> >>>> --- >>>> 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 9:51 AM, Daniele Dolci <daniele...@ <>gmail.com >>>>> <http://gmail.com/>> wrote: >>>>> >>>>> 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 <daniele...@ <>gmail.com >>>>>> <http://gmail.com/>> 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 <daniele...@ <>gmail.com >>>>>>> <http://gmail.com/>> 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 pyqt...@ <>googlegroups.com <http://googlegroups.com/>. >>>>>>> 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 pyqt...@ <>googlegroups.com <http://googlegroups.com/>. >>>>>> 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 pyqt...@ <>googlegroups.com <http://googlegroups.com/>. >>>>> To view this discussion on the web visit >>>>> https://groups.google.com/d/msgid/pyqtgraph/4c71a8d2-5d8c-41a7-a3d2-e5a9dc106117%40googlegroups.com >>>>> >>>>> <https://groups.google.com/d/msgid/pyqtgraph/4c71a8d2-5d8c-41a7-a3d2-e5a9dc106117%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 pyqt...@ <>googlegroups.com <http://googlegroups.com/>. >>>> To view this discussion on the web visit >>>> https://groups.google.com/d/msgid/pyqtgraph/4d6a1fdc-0df4-435e-a362-1e5b8e0328fb%40googlegroups.com >>>> >>>> <https://groups.google.com/d/msgid/pyqtgraph/4d6a1fdc-0df4-435e-a362-1e5b8e0328fb%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 pyqt...@ <>googlegroups.com <http://googlegroups.com/>. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/pyqtgraph/770c9bdc-6fd4-46bc-a1fd-64e212790413%40googlegroups.com >>> >>> <https://groups.google.com/d/msgid/pyqtgraph/770c9bdc-6fd4-46bc-a1fd-64e212790413%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 pyqt...@ <>googlegroups.com <http://googlegroups.com/>. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/pyqtgraph/2FCF8E91-6628-4A0B-83B3-0B24F22CB62D%40alaska.edu >> >> <https://groups.google.com/d/msgid/pyqtgraph/2FCF8E91-6628-4A0B-83B3-0B24F22CB62D%40alaska.edu?utm_medium=email&utm_source=footer>. >> >> >> -- >> Daniele Dolci >> Technical Director & Python Developer >> Vetralla, Italy >> M: +39 331 200 5242 >> E: daniele...@ <>gmail.com <http://gmail.com/> >> W: https://www.linkedin.com/in/danieledolci95 >> <https://www.linkedin.com/in/danieledolci95> >> Skype: dolci.daniele >> Portfolio (YouTube): https://youtu.be/IMZdW4ikjok >> <https://youtu.be/IMZdW4ikjok> >> ======================================= >> Insanity: doing the same thing over and over again and expecting different >> results. >> - Albert Einstein - >> >> >> -- >> 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 pyqt...@ <>googlegroups.com <http://googlegroups.com/>. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/pyqtgraph/CAF_JKbCxJK1NUrcrJnJ0m8eLfAHGt11POh5knCPmLwL3--d%3D3A%40mail.gmail.com >> >> <https://groups.google.com/d/msgid/pyqtgraph/CAF_JKbCxJK1NUrcrJnJ0m8eLfAHGt11POh5knCPmLwL3--d%3D3A%40mail.gmail.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] > <mailto:[email protected]>. > To view this discussion on the web visit > https://groups.google.com/d/msgid/pyqtgraph/a97a376c-c8e9-403d-9cb5-b733fb773594%40googlegroups.com > > <https://groups.google.com/d/msgid/pyqtgraph/a97a376c-c8e9-403d-9cb5-b733fb773594%40googlegroups.com?utm_medium=email&utm_source=footer>. > <plots.jpg> -- You received this message because you are subscribed to the Google Groups "pyqtgraph" group. 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