Adding additional information on plot tooltip

2022 6 21
1 个回答
更新时间：2022 6 21
26 次查看（30 天）

0 个投票

Hi
I have a plot , when i hover over the plot line, it displays the value. At the same time i would like to also display the temperture, which is also part of the dataset but not displayed on the plot.
How do i edit the tooltip, so that additional information can be displayed on the tooltip ?

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回答（1 个）

Simon Chan
Simon Chan 2022-6-21

2 个投票

Use function dataTipTextRow

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Dharmesh Joshi
Dharmesh Joshi 2022-6-21
Thanks
This my code now
plot(t,ug,ref_data_timestamp,ref_data_sensordata)
title('N02 Sensor Per Minute data')
xlabel('Date Time')
ylabel('N02 ug')
dataTipTextRow("Temperture",iot_temperture);
legend("Sensor ug", "Reference data")
When i click on the data trend on plot it does not still show the extra information
Simon Chan
Simon Chan 2022-6-21
You need to attach it to the DataTipTemplate property. Check DataTipTemplate as well.
Dharmesh Joshi
Dharmesh Joshi 2022-6-21
Hi
Ok i can get it working if my plot has only one data set e.g.
s=plot(t,ug)
But i gett the following error message, when a plot has multiple plots
s=plot(t,ug,ref_data_timestamp,ref_data_sensordata)
Intermediate dot '.' indexing produced a comma-separated list with 2 values, but it must produce a single value when followed by subsequent indexing
operations.
Error in n02 (line 141)
s.DataTipTemplate.DataTipRows(end+1) = row;

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