Animations are available for offline

[ghtmtt]

A bit complicated to implement, but the code is more or less straightforward:

f1 = [125.7, 219.12, 298.55, 132.32, 520.6, 3435.49, 2322.61, 1891.63, 216.97, 383.98, 82.01, 365.56, 199.98, 308.71, 217.58, 436.09, 711.77]
f2 = [1046.67, 1315.0, 1418.0, 997.33, 2972.3, 9700.0, 6726.0, 6002.5, 2096.0, 2470.0, 867.0, 2201.7, 1685.6, 2416.7, 1618.3, 2410.0, 2962.0]


trace1 = go.Scatter(
x = f1,
y = f2,
mode = 'markers'
)

layout = go.Layout(
    xaxis = dict(range=[min(f1), max(f1)], autorange=False),
    yaxis = dict(range=[min(f2), max(f2)], autorange=False),
    updatemenus = [{'type': 'buttons', 'buttons': 
        [{'label': 'Play',
        'method': 'animate',
        'args': [None]},
        {'label': 'Pause',
        'method': 'animate',
        'args': [[None], 
        {'frame' : {'duration':0, 'redraw': False}, 'mode':'immediate'},
        ]}
        ]}],
)


frames= []
for i, j in zip(f1, f2):
    frames.append({'data': [{'x': [i], 'y': [j]}]})

data = [trace1]
fig = go.Figure(data=data, layout = layout, frames=frames)
plotly.offline.plot(fig)

API here

https://plot.ly/python/animations/#moving-frenet-frame-along-a-planar-curve

[ghtmtt]

closing this because too wide and not useful to have animation within DataPlotly

[BjornNyberg]

Would love to see animations implemented within DataPlotly. Using plotly express it is fairly straight foward but assume it is also more difficult to integrate within the QGIS canvas.

Furthermore it would be amazing to integrate plotly animations with time-series animations using the temporal controller.

[ghtmtt]

we are studying this implementation. While we have now temporal control also in QGIS it is a little bit difficult to put together plotly and QGIS animations:

• map - plot interaction, how should we proceed?
• filtering the map data depending on the plot ones (and/or viceversa)

it would definitely be a great enhancement but not straightforward.

[josephguillaume]

Has there been any further thought/experimentation about integration with the temporal control? As a proof of concept, it seems like:

• Clicking of a point in a temporal layer could trigger a change in the selected temporal range, building on: https://github.com/ghtmtt/DataPlotly/blob/c2fd3584dad0ab766649a268fef692852abe2332/DataPlotly/gui/plot_settings_widget.py#L472
• Filtering by temporal range could be implemented as an extension of what is considered a visible or selected feature https://github.com/ghtmtt/DataPlotly/blob/c2fd3584dad0ab766649a268fef692852abe2332/DataPlotly/core/plot_factory.py#L205

While this existing issue seemed directly relevant, I'm actually most interested in using a scatterplot as a time navigation tool rather than for animation specifically. I understand this is a fairly complex feature to get right, but would welcome any thoughts on possible pitfalls/promising paths to follow within an initial proof of concept.

[ghtmtt]

Hi @josephguillaume! No updates so far. Binding together the QGIS temporal control and DataPlotly animation plot requires a lot of work and probably some refactoring of the main function of the plugin.

We have some ideas to enhance the plugin, hopefully we can add also this one!