Line Chart Widget

General Setting
User can change following things in Line Chart widget:
Name for widget which will be used data reference. For Example, if widget name is 'Line Chart', then data of widget is referenced as Line Chart.data
Show title - User can show/hide widget title
Title Color
Background Color
Configure Line Chart Widget
Widget Setting
In Widget Setting option, user can change following parameters:
Show Grid - Enable to show grid inside the chart
Show Legend -  Enable to show chart legends
X Legend - String value as a Legend for the X Axis 
Y Legend - String value as a Legend for the Y Axis  
Visible Points - Integer value to show maximum visible points on Chart
Type - Two types of Line Chart are available
XY Chart -  It will take values from X Key and Y Keys configured below.
Timeseries Chart - It will plot Y Keys configured against the timestamp data.
Time Format -  Two time format are supported. This are only considred in case of Timeseries chart.
HH:mm:ss
DD-MM-YYYY
X Key - key parameter of JSON Object which will define X-Axis Data for Line Chart Widget.
Y Keys - Key parameter of JSON Object which will define Y-Axis Data for Line Chart Widget.
Show Grid X - Enable to show X Axis Grid Lines
Show Grid Y - Enable to show Y Axis Grid Lines
Configure Line Chart Widget
Configure Line Chart Widget
Source
User can select a source mode as MQTT or Action.
Using MQTT
Here, to update data on Line Chart user can publish JSON object/array on given data MQTT topic. No need to provide <account_id> while providing the MQTT topic. The JSON object will be as below.
// Example 1
// XY Line Chart is selected
​
[
  {
    "xData": "Div A",
    "yData": 116,
    "zData": 60
  },
  {
    "xData": "Div B",
    "yData": 86,
    "zData": 40
  },
  {
    "xData": "Div C",
    "yData": 20,
    "zData": 30
  }
]
​
// here 'xData' is set as XKey and 'yData' and 'zData' are set as yKeys.
// Example 
// Timeseries Line Chart is selected
​
{
    "yData":116,
    "zData":60
}
​
// here 'yData' and 'zData' are set as yKeys. 
Configure Line Chart Widget
Using Action
Here, to update the Line Chart widget, output of the action should contain JSON object/array as given in above example. User can also update the widget either onLoad or periodically by providing refresh interval.
Configure Line Chart Widget
Event Handling
Line Chart widget does not support any event.
Examples
Here, data in below format published on configured topic, will appear as shown in image.
1. XY Line Chart
// XY Line Chart is selected
​
[
  {
    "xData": "Div A",
    "yData": 116,
    "zData": 60
  },
  {
    "xData": "Div B",
    "yData": 86,
    "zData": 40
  },
  {
    "xData": "Div C",
    "yData": 20,
    "zData": 30
  }
]
​
// here 'xData' is set as XKey and 'yData' and 'zData' are set as yKeys.
XY Line Chart Example
2. Timeseries Line Chart
Here, point on chart will get plot at the time it is received from configured source.
// Timeseries Line Chart is selected
​
{
    "yData":116,
    "zData":60
}
​
// here 'yData' and 'zData' are set as yKeys. 
Timeseries Line Chart Example
Last modified 1yr ago