Add 'synchronized tooltips' feature

[alshan]

Allow tooltips to display for all series when hovering over one.

See discussion: #1412 (reply in thread)

[alshan]

In v4.8.0 the default behavior now is "See tooltips of ALL data series when hovering over one of them."

[ma-galan]

Hi, regarding the "synchronized tooltips" requested feature:

• Tooltips for ALL series in a plot regardless of their format, etc. (Still not working correctly If I specify the format of each series)
• Tooltips for ALL series in a plot and ALL the subplots, like in the image attached --> Could we add a vertical reference line (black in the attached image) that crosses ALL the subplots like in the image? Maybe it makes sense to have this option in the ggtb() toolbar...

[alshan]

Hi ma-galan ,

Tooltips for ALL series in a plot regardless of their format, etc. (Still not working correctly If I specify the format of each series)

I tried two series with values in the tooltip formatted differently and couldn't see any problems:

data = {
    'x': [1, 2, 3, 4, 5],
    'y1': [3, 5, 4, 8, 7],
    'y2': [1, 2, 5, 4, 6]
}

p = ggplot(data, aes(x='x')) + \
    geom_line(aes(y='y1'), color='red', size=1,
              tooltips=layer_tooltips()
              .format('@y1', '.1f')         
              .line('Series A: @y1')) + \
    geom_line(aes(y='y2'), color='blue', size=1,
              tooltips=layer_tooltips()
              .format('@y2', '.2f')        
              .line('Series B: @y2'))
p

[ma-galan]

Hi Igor Alshannikov (@alshan) ,

sorry, I did not explain myself correctly. The problem happens when, for example, I mix geom_line and geom_smooth layers, only the tooltip of 1 of them shows when hovering:

data = {
    'x': [1, 2, 3, 4, 5],
    'y1': [3, 5, 4, 8, 7],
    'y2': [1, 2, 5, 4, 6],
    'y3': [2, 3, 4, 5.5, 8]
}

p = ggplot(data, aes(x='x')) + \
    geom_line(aes(y='y1'), color='red', size=1,
              tooltips=layer_tooltips()
              .format('@y1', '.1f')         
              .line('Series A: @y1')) + \
    geom_line(aes(y='y2'), color='blue', size=1,
              tooltips=layer_tooltips()
              .format('@y2', '.2f')        
              .line('Series B: @y2')) + \
    geom_smooth(aes(y='y3'), method='loess', color='green', size=1,
                tooltips=layer_tooltips()
                .format('@y3', '.2f')
                .line('Series C: @y3'))

p

[alshan]

Hi ma-galan , could you try this in LP v4.10.1 ? Does it work as expected?