Ok, back from revision...
The is no mix-up for the show command. The only explicit show() command is
commented out in line 41. It can be deleted. But I haven't done that, yet.
There are several bits of code which are remains of the design process since
this is work in progress. Code cleaning will be done when the main
functionality is in place.
Back to addmpl where I embedded gui elements into the canvas. Taking out the
matplotlib taskbar doesn't change a thing as I wrote earlier, but to make sure
it doesn't bother the mainloop, it should be commented out. I may not put it
back in, because I don't see the point in needing it. It was just to see if
it's possible.
>>But option 2 relinquishes that control to the developer's GUI app. You
>>*cannot* use pyplot for option 2, which is what you are doing.
Is that so? In line 116 I create the canvas, which is derived from matplotlib's
backend's FigureCanvasQTAgg and given to the QWidget at line 119. That's the
only part where both interact with each other. the rest is handle by
matplotlib.
The error message says that Axes3D.figure.canvas is 'None' and that's why mouse
rotation is disabled.It's None because there is no content at that point, when
it's passed to the QWidget. It's filled with content in line 38. So if
matplotlib disables the mouse rotation by default, when the canvas is empty how
do I prevent this disabling by default?
If I can't, at what point do I have to pass the filled canvas to the QWidget?
How does that impact the GUI itself?
If I can't enable the mouse rotation by hand and I just can pass filled canvas
around, do I have to build a work around with initialize it with an empty 2D
canvas and replace it later with the filled 3D canvas? How's the mouse rotation
activated then?
In general, I wouldn't have to enable the rotation if it wouldn't be switch off
for an empty canvas.
I'm going to consult your book, now, for different ways of coping with such
things...
cheers,Christian --
"A little learning never caused anyone's head to explode!"
"Ein wenig Lernen hat noch niemandens Kopf zum Explodieren gebracht!"
On Tuesday, April 28, 2015 8:28 PM, Benjamin Root <ben.r...@ou.edu> wrote:
One thing I see off the bat is your addmpl() method:
```
def addmpl(self, fig):
#FigureCanvas.__init__(self, fig)
self.canvas = FigureCanvas(fig)
Axes3D.mouse_init(self, rotate_btn=1, zoom_btn=2)
self.mplvl.addWidget(self.canvas)
self.canvas.draw()
self.toolbar = NavigationToolbar(self.canvas, self.mplwindow,
coordinates=True)
self.mplvl.addWidget(self.toolbar)
```
You are calling Axes3D.mouse_init() on the Main object (that is `self`). That
is completely wrong. It can only be called for the 3d axes objects.
Also, what I see happening here is some mixing up of how to do embedding. There
are two approaches to embedding. 1) you can embedded GUI elements into your
canvas widget, or 2) you can embed your canvas widget into your GUI app. The
important distinction between the two is who controls the mainloop. In option 1
(and in matplotlib in general), pyplot will create the GUI app for you
automatically (it is completely transparent to you) and kicks it off upon call
to show(). But option 2 relinquishes that control to the developer's GUI app.
You *cannot* use pyplot for option 2, which is what you are doing. Rip out all
of the pyplot stuff, and instantiate the Qt5 Figure object directly, and then
obtain the axes objects from the figure object via calls to add_subplot(). You
shouldn't even need to do the whole mouse_init() stuff.
I now think this has nothing to do with Qt Designer. While I don't specifically
cover qt5 in my book, I do make all of these distinctions very clear in chapter
5 of my book "Interactive Applications using Matplotlib".
Cheers!
Ben Root
On Tue, Apr 28, 2015 at 4:03 PM, Christian Ambros <ambr...@ymail.com> wrote:
Hi Benjamin,
I would do that if my task were my private stuff, but in this case it's
work-related and my boss wants me to use the designer and he already set a
deadline, which, I already knew, is set to tight. I told him before, that it
would be just a try but he sold it to his boss after some pressure. You know
how the bosses' bosses are, they don't get the idea that innovation can't be
dictated. They don't understand the concept that software is written and
doesn't come into existence out of nothing.
Without PyQt5 it's working fine. I got the plots and they are gorgeous, but
that doesn't help when presenting to the bosses. If I just would know how to
activate the 3d-draw's mouse action again, by hand, than it has to last just
some moments for the presentation, afterwards I have the time to examine and
find a more robust solution.
Thanks for the effort.cheers,Christian
--
"A little learning never caused anyone's head to explode!"
"Ein wenig Lernen hat noch niemandens Kopf zum Explodieren gebracht!"
On Tuesday, April 28, 2015 7:30 PM, Benjamin Root <ben.r...@ou.edu> wrote:
I think there is something wrong with the embedding code rather than there
being an actual bug. I have embedded mplot3d stuff before (admittedly, not in
qt5) with no problems. I haven't had the time yet to examine your code to see
what the potential issue is, though. I have also never used Qt designer, so I
have no clue if there is something that it is doing that might be making things
difficult.
I already know that the code you originally posted has errors in it. I would
suggest first making a prototype without Qt Designer as a proof-of-concept,
perhaps starting with one of our examples in the gallery?
Ben Root
On Tue, Apr 28, 2015 at 2:12 PM, Christian Ambros <ambr...@ymail.com> wrote:
Since there seems to be no progress with this issue, may I assume there isn't
any interest in it?I took a further look around in the internet but couldn't
any solution.It leads to an other question: How many users of matplotlib are
using 3d-plots anyway? It we are just a few and there won't be anyone who wants
to embed it in PyQt5, than I can understand that this issue doesn't concern
no-one and I have to look somewhere else to find a 3d-plotting lib which is
embedable.
cheers,Christain
--
"A little learning never caused anyone's head to explode!"
"Ein wenig Lernen hat noch niemandens Kopf zum Explodieren gebracht!"
On Tuesday, April 21, 2015 1:44 PM, Benjamin Root <ben.r...@ou.edu> wrote:
The addmpl() method isn't right. You created a canvas object, assigned it to
self.canvas, but then tried to call FigureCanvas.__init__(), passing it
whatever object "self" is. What class is addmpl() a part of? What does it
subclass?
On Tue, Apr 21, 2015 at 7:24 AM, Christian Ambros <ambr...@ymail.com> wrote:
Hi,
I embedded Ryan's examble for PyQt5-matplotlib use into my App but I get the
following error:
/usr/local/lib/python3.4/dist-packages/mpl_toolkits/mplot3d/axes3d.py:1009:
UserWarning: Axes3D.figure.canvas is 'None', mouse rotation disabled. Set
canvas then call Axes3D.mouse_init().
warnings.warn('Axes3D.figure.canvas is \'None\', mouse rotation disabled.
Set canvas then call Axes3D.mouse_init().')
>From Stackoverflow, which host to question about this, I know that mouse
>actions are disabled when the canvas is re-initialized by whatever.
The only position I do such an operation is in here: def addmpl(self, fig):
self.canvas = FigureCanvas(fig)
#FigureCanvas.__init__(self, fig)
#Axes3D.mouse_init(self)
self.mplvl.addWidget(self.canvas)
self.canvas.draw()
self.toolbar = NavigationToolbar(self.canvas, self.mplwindow,
coordinates=True)
self.mplvl.addWidget(self.toolbar)
On of the Stackoverflow suggestion says, that re initializing FigureCanvas
should do the trick but I'll get:
Traceback (most recent call last):
File "./ex_0.1.py", line 145, in <module>
main(sys.argv)
File "./ex_0.1.py", line 53, in main
mainwindow.addmpl(fig1)
File "./ex_0.1.py", line 116, in addmpl
FigureCanvas.__init__(self, fig)
File
"/usr/local/lib/python3.4/dist-packages/matplotlib/backends/backend_qt5agg.py",
line 181, in __init__
FigureCanvasQT.__init__(self, figure)
File
"/usr/local/lib/python3.4/dist-packages/matplotlib/backends/backend_qt5.py",
line 237, in __init__
super(FigureCanvasQT, self).__init__(figure=figure)
TypeError: super(type, obj): obj must be an instance or subtype of type
as follow-up error message.
just using Axes3D.mouse_init() , as suggested by matplotlib itself, leads to:
Traceback (most recent call last):
File "./ex_0.1.py", line 146, in <module>
main(sys.argv)
File "./ex_0.1.py", line 53, in main
mainwindow.addmpl(fig1)
File "./ex_0.1.py", line 118, in addmpl
Axes3D.mouse_init()
TypeError: mouse_init() missing 1 required positional argument: 'self'
adding self leads to:
Traceback (most recent call last):
File "./ex_0.1.py", line 146, in <module>
main(sys.argv)
File "./ex_0.1.py", line 53, in main
mainwindow.addmpl(fig1)
File "./ex_0.1.py", line 118, in addmpl
Axes3D.mouse_init(self)
File "/usr/local/lib/python3.4/dist-packages/mpl_toolkits/mplot3d/axes3d.py",
line 1002, in mouse_init
canv = self.figure.canvas
AttributeError: 'Main' object has no attribute 'figure'
./ex_0.1.py &
Maybe I'm adding those lines at the wrong place, but I could fined anything
useful in the matplotlib documantation, that would help me out, either.
Any thougts that might help?
Cheers,Christian
--
"A little learning never caused anyone's head to explode!"
"Ein wenig Lernen hat noch niemandens Kopf zum Explodieren gebracht!"
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