I am new to node red and i am trying to plot line chart of real time data, but nothing is display on chart My flow. [{"id":"5c0f3e4b.7b304","type":"tab","label":"Vibration_Dashboard","disabled":false,"info":""},{"id":"b6aa9d6f.49572","type":"debug","z":"5c0f3e4b.7b304","name":"debug","active":true…

Here is the output of debug node. [image]

Here is another thread where you can find how to use highcharts library and present it inside ui_template node. Plot a time series using highcharts Examine the code inside the ui_template node first and see the difference with your code. Adjust your code to get the library correctly working and i…

What does the data look like if you click on the arrows?

i am stuck in Hichart template code. how to pass values to x and y axis in Highchart template code? This is my function code var point={} var buffer=msg.payload.split(","); var values= ; point.x=parseInt(buffer[0]) point.y=parseInt(buffer[1]) values.push(point); msg.payload= [{data:values}]…

You said you want to plot it in real time. Are the x and y you show to be drawn as separate lines on the chart (so one line showing how x changes over time and another showing how y changes over time)? or are you trying to draw a line showing x against y where neither of those is time?

This is a double thread which one do we answer on? [image] Vibration_sensor General I want to plot a line chart of vibration sensor Data. Following is my flow. How can i plot a real time line chat using node red where x-axis will be frequency and y-axis will be amplitude. …

As mentioned on other topic you can have two lines over time. e.g. [{"id":"33bf91f5.fd2cee","type":"inject","z":"d758c823.606a8","name":"","props":[{"p":"payload"},{"p":"object","v":"","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"[{'x':'23','y':4}]","pay…

Node-RED

Node-RED Forum

How to Plot line chart of real time data

General

E1cid 2 February 2021 10:04 10

This is a double thread which one do we answer on?

Topic		Replies	Views
Vibration_sensor General	5	708	1 February 2021
Need help with line chart Dashboard	30	8599	16 July 2019
Line chart is not drawing the line... sometimes Dashboard	21	1678	23 July 2020
How to keep the X-Axis in node red Dashboard chart	18	435	29 November 2022
SteppedLine Chart together with Line Chart Dashboard	22	2614	16 April 2021

Copyright OpenJS Foundation and Node-RED contributors. All rights reserved. The OpenJS Foundation has registered trademarks and uses trademarks. For a list of trademarks of the OpenJS Foundation, please see our Trademark Policy and Trademark List. Trademarks and logos not indicated on the list of OpenJS Foundation trademarks are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.

How to Plot line chart of real time data

Related topics