Hi Lavinia, I think I made a fix and am submitting a pull request to the official pyqtgraph repository. If you want the fix sooner, you can get it from my github:
https://github.com/meganbkratz/pyqtgraph/ <https://github.com/meganbkratz/pyqtgraph/tree/imageAxisOrder_bugfix> The branch with the bugfix is called "imageAxisOrder_bugfix". Megan On Tue, May 19, 2020 at 1:47 PM megan kratz <[email protected]> wrote: > Hi, > > Thanks for the example! This is definitely a bug. In addition to the error > you're getting about the axes being the wrong shape, there also seems to be > a problem with the wrong data being pulled from the image when > imageAxisOrder='row-major'. > > For now I'd recommend not using the 'row-major' option if that's at all > possible. I'll try to look into it more and figure out a fix. > > Megan > > > On Tue, May 19, 2020 at 11:16 AM Lavinia B <[email protected]> wrote: > >> Hi, >> I managed to make an example of my issue . For some reason I cannot get >> the range to adjust for each color, but I put a border around the image, to >> make it clear where it ends. >> I fill in arrays representing rgba, and I stack that to form my data. >> >> If you set the configuration to row major, rescale the roi to an uneven >> rectangle, then you should get my issue. You can also see in the pictures, >> because of the error the plots stop updating. >> >> I expected it to work the same as in column major. ( you can move around >> the roi, and when the roi overlaps an area outside the image, the plot data >> corresponding to it is 0) >> Any thoughts? >> >> >> On Tuesday, May 19, 2020 at 5:57:41 PM UTC+2, megan wrote: >>> >>> Okay, I've not been able to replicate this. Can you post some example >>> code that produces this error? >>> >>> On Tue, May 19, 2020 at 9:43 AM Lavinia B <[email protected]> wrote: >>> >>>> Hi, >>>> The numbers correspond to the dimensions of the ROI rectangle I drag. I >>>> am pretty sure it's that, as the exception modifies with my changes... and >>>> goes away when I create a perfect square. >>>> For example: >>>> Exception: X and Y arrays must be the same shape--got (38,) >>>> and (22,). >>>> >>>> >>>> On Tuesday, May 19, 2020 at 5:26:24 PM UTC+2, megan wrote: >>>>> >>>>> Hi, >>>>> >>>>> That is an error that occurs when you attempt to plot data that has a >>>>> different number of x and y values. I need more information in order to >>>>> understand why you're getting that error though. What are the shapes in >>>>> the >>>>> error? Can you post the whole traceback? >>>>> >>>>> Megan >>>>> >>>>> On Tue, May 19, 2020 at 9:17 AM Lavinia B <[email protected]> wrote: >>>>> >>>>>> Hi, >>>>>> I have an ImageView in which I set data with mode=rgba. When I try to >>>>>> use the ROI , the plot gives me warnings if the ROI is not perfectly >>>>>> square. >>>>>> "..\src\pyqtgraph\pyqtgraph\graphicsItems\PlotCurveItem.py", line >>>>>> 385, in updateData >>>>>> raise Exception("X and Y arrays must be the same shape--got %s >>>>>> and %s." % (self.xData.shape, self.yData.shape)) >>>>>> >>>>>> I don't understand why is this enforced. Can somebody explain? >>>>>> >>>>>> Note: this does not happen for mono images, or if I keep my selection >>>>>> shape square. >>>>>> >>>>>> >>>>>> -- >>>>>> 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/03453f45-80b6-4e4c-8589-0ca26e131205%40googlegroups.com >>>>>> <https://groups.google.com/d/msgid/pyqtgraph/03453f45-80b6-4e4c-8589-0ca26e131205%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/5c8c6bbd-3989-42d6-91e6-fa7dc729d527%40googlegroups.com >>>> <https://groups.google.com/d/msgid/pyqtgraph/5c8c6bbd-3989-42d6-91e6-fa7dc729d527%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/22b1cce2-a9da-45e2-849d-bd4271a240a3%40googlegroups.com >> <https://groups.google.com/d/msgid/pyqtgraph/22b1cce2-a9da-45e2-849d-bd4271a240a3%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > -- You received this message because you are subscribed to the Google Groups "pyqtgraph" group. 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