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nicolaskruchten merged 1 commit into from
Feb 26, 2020
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Update legend.md #2227

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Update legend.md 
Add 'Hide the Trace Implicitly' section. 
Change 'Size of Legend Items' header from h3 to h4.
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@SylwiaOliwia2
SylwiaOliwia2 authored Feb 25, 2020
commit 4c2c57cacbd2b7a27ee68ae63eda2ca4c4d47db4
25 changes: 24 additions & 1 deletion doc/python/legend.md
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Expand Up @@ -243,7 +243,30 @@ fig.update_layout(
fig.show()
```

### Size of Legend Items
#### Hide the Trace Implicitly

`Graph_objects` traces have a `visible` attribute. If set to `legendonly`, the trace is hidden from the graph implicitly. Click on the name in the legend to display the hidden trace.

```python
import plotly.graph_objects as go

fig = go.Figure()

fig.add_trace(go.Scatter(
x=[1, 2, 3, 4, 5],
y=[1, 2, 3, 4, 5],
))

fig.add_trace(go.Scatter(
x=[1, 2, 3, 4, 5],
y=[5, 4, 3, 2, 1],
visible='legendonly'
))

fig.show()
```

#### Size of Legend Items

In this example [itemsizing](https://plot.ly/python/reference/#layout-legend-itemsizing) attribute determines the legend items symbols remain constant, regardless of how tiny/huge the bubbles would be in the graph.

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