Customising Microcharts - charts

Question

I'm trying to achieve the chart similar to the attached screenshot. The problem is, how can I put values in each arc (70, 76) of the chart? I'm using Microchart library.
The attached screenshot is from SmartHotel360 xamarin demo app. It would be really helpful if someone can help me to point in the correct direction.
void PopulateChart()
{
var data = new[]
{
new Microcharts.Entry(50)
{
ValueLabel = "50",
Color = SKColor.Parse("#104950")
},
new Microcharts.Entry(70)
{
ValueLabel = "70",
Color = SKColor.Parse("#F7A4B9")
},
new Microcharts.Entry(90)
{
ValueLabel = "90",
Color = SKColor.Parse("#0084b4")
}
};
this.chartView.Chart = new TemperatureChart() { Entries = data };
}
using Microcharts;
using SkiaSharp;
using System;
using System.Linq;
namespace chart
{
public class TemperatureChart : Chart
{
public TemperatureChart()
{
BackgroundColor = SKColor.Parse("#F6F1E9");
}
public float CaptionMargin { get; set; } = 12;
public float LineSize { get; set; } = 18;
public float StartAngle { get; set; } = -180;
private float AbsoluteMinimum => Entries.Select(x => x.Value).Concat(new[] { MaxValue, MinValue, InternalMinValue ?? 0 }).Min(x => Math.Abs(x));
private float AbsoluteMaximum => Entries.Select(x => x.Value).Concat(new[] { MaxValue, MinValue, InternalMinValue ?? 0 }).Max(x => Math.Abs(x));
private float ValueRange => AbsoluteMaximum - AbsoluteMinimum;
public override void DrawContent(SKCanvas canvas, int width, int height)
{
var sumValue = Entries.Sum(x => Math.Abs(x.Value));
var radius = (Math.Min(width, height) - (2 * Margin)) / 2;
var cx = width / 2;
var cy = Convert.ToInt32(height / 1.25);
var lineWidth = (LineSize < 0) ? (radius / ((Entries.Count() + 1) * 2)) : LineSize;
var radiusSpace = lineWidth * 4;
foreach (var entry in Entries.OrderByDescending(e => e.Value))
{
DrawChart(canvas, entry, radiusSpace, cx, cy, lineWidth);
}
DrawCaption(canvas, cx, cy, radiusSpace);
}
public void DrawChart(SKCanvas canvas, Entry entry, float radius, int cx, int cy, float strokeWidth)
{
using (var paint = new SKPaint
{
Style = SKPaintStyle.Stroke,
StrokeWidth = strokeWidth,
StrokeCap = SKStrokeCap.Round,
Color = entry.Color,
IsAntialias = true
})
{
using (SKPath path = new SKPath())
{
var sweepAngle = 180 * (Math.Abs(entry.Value) - AbsoluteMinimum) / ValueRange;
path.AddArc(SKRect.Create(cx - radius, cy - radius, 2 * radius, 2 * radius), StartAngle, sweepAngle);
canvas.DrawPath(path, paint);
}
}
}
private void DrawCaption(SKCanvas canvas, int cx, int cy, float radius)
{
var minimum = 0;
var medium = Math.Round(Entries.Max(e => e.Value) / 2);
var maximum = Entries.Max(e => e.Value);
canvas.DrawCaptionLabels(string.Empty, SKColor.Empty, $"{minimum}°", SKColors.Black, LabelTextSize, new SKPoint(cx - radius - LineSize - CaptionMargin, cy), SKTextAlign.Center);
canvas.DrawCaptionLabels(string.Empty, SKColor.Empty, $"{medium}°", SKColors.Black, LabelTextSize, new SKPoint(cx, cy - radius - LineSize), SKTextAlign.Center);
canvas.DrawCaptionLabels(string.Empty, SKColor.Empty, $"{maximum}°", SKColors.Black, LabelTextSize, new SKPoint(cx + radius + LineSize + CaptionMargin, cy), SKTextAlign.Center);
}
}
}