Hi All, I want create chart coast time value, but i've some problems: I can't setup the X-Axis Value starting from 0. When i change to seconds format (ss) the grid of x - axis value is repeating in same number [image] and this is my code: [{"id":"ba2115b.00c9968","type":"ui_button","z":"8d8b4a…

For me it works with chrome as well. Maybe you should clear browser cache?

Yes your right, i want to create chart with trigonometry function. I've done with excel, so i want implementation it into Node-red. [image] So the chart output will become like this, [image] I've try to add: function radians (degrees) { return degrees * Math.PI / 180; } But still didn't wo…

Check the syntax and debug the properties like shown node.warn(value)

The debug shown: 5/14/2019, 12:48:30 PM node: 34f068d0.6e25a function : (warn) "NaN NaN"

NaN means "not a number" Show whole content of function node.

Here is the whole of function node: // declare variables var startmoment = context.get("startmoment") var chartdata = context.get("chartdata") || [] // reset button has topic 'reset'. clear all data if(msg.topic === "reset"){ startmoment = undefined; context.set("startmoment",startmoment) con…

Thanks for the correction @hotNipi . The debug now give me the output number, but the chart is going crazy. [image] And I've check is wrong sintax in "deg" function var deg = (new Date().getTime() - startmoment ) / 1440 * 360

Chart does what is told to do :upside_down_face:. Now all depends on your input and calculations.

:smiley: Thank you @hotnipi for your help. I'll check my calculations first, there is wrong at there.

After making changes using the functions below, I get the same results according to the calculations in Excel. but it only lasts up to 59 seconds (degree 14.75), after which the "deg" value returns to 0. So the chart overrides the previous line chart. var deg = new Date().getSeconds() / 1440 * 360 …

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Help to Change X- Axis Value

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hotNipi 14 May 2019 06:03 14

Wrong syntax.
var xnew = adh * Math.sin * (radians(deg))

Correct syntax
var xnew = adh * Math.sin(radians(deg))

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Help to Change X- Axis Value

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