protected double GetDistance(CGPoint tapLocation, IPointEntry entry, IXAxis xAxis, IYAxis yAxis)
{
var entryContentLocationX = xAxis.GetContentValue(entry.X);
var entryContentLocationY = yAxis.GetContentValue(entry.Y);
return(Math.Sqrt(Math.Pow(entryContentLocationX - tapLocation.X, 2) + Math.Pow(entryContentLocationY - tapLocation.Y, 2)));
}
private void DrawLabels(CGContext context, IViewPort viewPort, IXAxis xAxis, nfloat positionY, nfloat axisLineStart, nfloat axisLineEnd, TextStyle textStyle, List <Tuple <double, string> > labels)
{
foreach (var label in labels)
{
var labelX = xAxis.GetContentValue(label.Item1);
var viewPortPositionX = viewPort.DisplayPositionX((nfloat)labelX);
if (viewPortPositionX >= axisLineStart && viewPortPositionX <= axisLineEnd)
{
DrawLabel(context, label.Item2, new CGPoint(viewPortPositionX, positionY), textStyle);
}
}
}
protected virtual CGPoint GetDrawPosition(double sourceX, double sourceY, IViewPort viewPort, IXAxis xAxis, IYAxis yAxis) => viewPort.DisplayPosition(new CGPoint(xAxis.GetContentValue(sourceX), yAxis.GetContentValue(sourceY)));