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ishrivastava-21-Visitor
1-Visitor
March 23, 2017
Question

Dynamic chart

  • March 23, 2017
  • 2 replies
  • 6497 views

Hello,

I want to plot data from the info-table containing some sets of values of ECG. I want data to be flowing continuously on label chart.Can anyone suggest me how to achieve that. Please find the below link. Right now I am getting static line chart i want data moving along x axis and shows all the data stores in that info-table at particular time stamp.

http://canvasjs.com/editor/?id=http://canvasjs.com/example/gallery/dynamic/realtime_line/

2 replies

M
Michail1-Visitor
1-Visitor
March 23, 2017

Hi Isha, your infotable, does it have a time reference associated with each entry, i.e. timestamp?

I
ishrivastava-21-VisitorAuthor
1-Visitor
March 23, 2017

Yes, My infotable contains values and timestamp as fields but timestamp values are stored as string (datatype) not as Date time timestamp.

M
Michail1-Visitor
1-Visitor
March 23, 2017

I would add "DateTime" basetype field and convert that string appropriately. After that I would write a script which queries this infotable using start and end dates and the resultant table associated with the Time Series chart as well as its attributes,  XAxisMaximum = endDate, XAxisMinimum = startDate. After that you need a way of initialising this service, either AutoRefresh or any other trigger. startDate and endDate should be incremented with each service call.

I did something like that some time ago.

S
supandey5-Regular Member
5-Regular Member
March 23, 2017

Hi Isha, i think in out of the box widget this is not possible to achieve exactly what you are trying to reference with the CanvasJS, at best you can have Auto refresh for periodically refreshing it.

Though you can easily integrate that by creating your custom TimeChart widget. Attached are some custom widget development guide.

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