iosswiftchartsios-charts

How to draw a line in line chart for single value in Charts(IOS)

I need to draw a single value in line chart. Currently i am using ios-charts library for line graph purpose.

The data will be varied some times i'll get the single data inside the data set at that time i need to draw the single value in the line chart.

What i am getting:

enter image description here

What i required:

enter image description here

Solution

  • The library cannot do this automatically, but there is the following option.
    You check if your data contains exactly one point. If yes, then you add a so called LimitLine.

    For example:

    let limitLine = ChartLimitLine(
   limit: value,
   label: labelText)

limitLine.lineColor = .blue
limitLine.labelPosition = .topLeft
limitLine.valueFont = UIFont.systemFont(ofSize: 14)

chartView.leftAxis.addLimitLine(limitLine)