How to draw additional absciss on grid?

Question

I'm using MPAndroidCharts and ios-charts for my apps. I need additional absciss at custom y!=0 to be drawed. And it would be great if points above that level will painted to custom color.

How to realize that?

Answer 1

You can use limit line as additional line, smth like this:

ChartLimitLine *ll1 = [[ChartLimitLine alloc] initWithLimit:YOUR_NUMBER label:@""];
ll1.lineColor = [UIColor greenColor];
ll1.lineWidth = 1.0;

To change circle colors, you need to modify private func drawCircles(context context: CGContext) method in LineChartRenderer.

There's a for-loop with line:

CGContextSetFillColorWithColor(context, dataSet.getCircleColor(j)!.CGColor)

You can change it to smth like:

if e.value > YOUR_VALUE {
    CGContextSetFillColorWithColor(context, UIColor.greenColor().CGColor)
}
else {
    CGContextSetFillColorWithColor(context, dataSet.getCircleColor(j)!.CGColor)
}