The following five lines draws a chart using plotly: import plotly.graph_objects as go x_time=["09:31:00", "09:32:00", "09:33:00", "09:34:00", "09:35:00", "09:36:00", "09:37:00", "09:38:00", "09:39:00", "09:40:00"] y1=[6.37,6.42,6.39,6.50,6.42,6.48,6.43,6.54,6.46,6.56] fig = go.Figure(go.Scatter(x=…

HI @robin1 welcome to the forums! You can use a builtin function for that: [image] Shapes Over 16 examples of Shapes including changing color, size, log axes, and more in Python. serch on this page for Drawing shapes with a Mouse on Cartesian plots

Draw lines by hand or using some tool in plotly chart

📊 Plotly Python

AIMPED February 2, 2023, 9:21am 2

HI @robin1 welcome to the forums!

You can use a builtin function for that:

serch on this page for Drawing shapes with a Mouse on Cartesian plots

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Movable shape(line), showing all y values for refered x point

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Draw lines by hand or using some tool in plotly chart

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