Hey guys,
I’m trying to make an app when pushed on the button submit, as seen below, a calculation of max 1-2 minutes is performed and a graph is shown.
However, the page reloads a few seconds after clicking on submit. In Spyder though, I can see that the calculations have finished and an output is generated. Any idea what the problem may be, since I don’t get any errors.
Below is the code for the callback. the id output shows a table of selected file names and result has to show a graph/animation + button. the if-statement checks whether the input is None, which is on startup of the app. Since the callback is fired upon startup.
Thanks in advance!
@app.callback(
[Output('output', 'children'),
Output('result', 'children')],
[Input('submit_button','n_clicks')],
[State('rir_and_speech', 'children')]
)
def result(n_clicks, value):
rirs = []
speeches = []
for i in value:
rirs.append(i.get('props').get('children')[0].get('props').get('value'))
speeches.append(i.get('props').get('children')[1].get('props').get('value'))
statements= ['angle','speech-file']
table = html.Table([
html.Tr([
html.Td([statements[j]+str(i+1)+': ', value[i].get('props').get('children')[j].get('props').get('value')]) for j in range(2)
])
for i in range(len(value))], className="table_results")
if rirs == [None] or speeches == [None]:
return ["Nog Niets"],[]
else:
n_seq = len(rirs)
mr = MeetingRoom()
speech,answers = mr.conversation_linear(rirs, speeches, overlap= 0, sample = False)
srcloc = SourceLocalization(recording_filename='./output/sim_audio.npy',
Hmatrix_filename='./output/H.npy',
secs=speech.shape[0]/16000,
num_angles_phi=2,
# num_angles_theta=360,
verbose=True,
# save_path='graphs/two/test/'
)
srcloc.calc_J()
# srcloc.plot_histogram_theta_windowed(hist_type='weighted')
peaks = srcloc.peak_detection()
speakers, positions = srcloc.speaker_positions(n_seq, peaks)
srcloc.post_process(speakers, positions)
#Make a nx4 array that represent the speakers. if nan -> not spoken, else -> degree of the speaker
speakers = np.transpose(np.where(srcloc.speakers == False, np.nan, srcloc.speakers)) * srcloc.positions
animation = AnimationMeetingRoom(speakers)
fig = animation.fig
graph_meeting_room = dcc.Graph(id='fig',figure=fig, responsive=True)
audio_meeting_room = html.Div([html.Button(id="play_mr"),
html.Div(id="hidden_div_mr")])
result = [graph_meeting_room, audio_meeting_room]
return table, result
