Description
Scatter chart exposes the text property to display a text label assigned to the plotted data. The feature works in an unreliable way when it comes to changing the displayed texts. Besides that it does not render all the requested texts, it is impossible to predict what piece of data will be hidden/shown after next refresh.
See the provided example of the scatter plot chart:
- It shows a simply scatter chart. Initially, no text labels are presented, what is confirmed with the text of the button placed below the chart (resize the view port to see it if necessary).
- Use the button to change this: press the button, then the labels assigned to the data are presented - the y-values of dataset are presented.
- Moreover, ever click change the point where the labels are presented with the simple rule as follows: only points with y-value higher than randomly chosen value will be decorated. The "cutoff value" is presented as the button text.
- Press the button a few times. You will quickly realize that some “peak” values, or values on the left/right side of the plot, unexpectedly disappear randomly, breaking the above simple rule.
You may suspect an implementation error in the attached test example.
Nothing could be more wrong.
Use plotly toolbar to download a plot as png file. On such a copy, all labels are rendered as expected.
https://codepen.io/zabka5/pen/emNoqjZ
Unfortunately, after the recently reported #7440, #7441 and #7449, this is another example of the scatter chart needing major revisions and ... tests.