/// <summary>
/// Calculate AxisX points for Circular chart
/// </summary>
/// <param name="width"></param>
/// <param name="height"></param>
/// <param name="axisX"></param>
/// <param name="maxDataPointsCount"></param>
internal void CalculateAxisXLabelsPoints4Polar(Double width, Double height, Boolean isAxisLabelsEnabled, List<Double> angles, Double minValue, Double maxValue)
{
Double radius = Math.Min(width, height) / 2;
Double reducedPercent = 10;
if (isAxisLabelsEnabled)
reducedPercent = 20;
Radius = radius - (radius * reducedPercent / 100);
Center = new Point(width / 2, height / 2);
AnglesInRadian = new List<Double>();
Double minValInRadian;
if (minValue != 0)
minValInRadian = AxisLabel.GetRadians(minValue - 90);
else
minValInRadian = 2 * Math.PI - Math.PI / 2;
Double minAngle = Graphics.ValueToPixelPosition(minValInRadian, 2 * Math.PI + minValInRadian, AxisLabel.GetRadians(minValue), AxisLabel.GetRadians(maxValue), AxisLabel.GetRadians(minValue));
MinAngleInDegree = minAngle * 180 / Math.PI;
for (Int32 i = 0; i < angles.Count; i++)
{
Double actualAngle = Graphics.ValueToPixelPosition(minValInRadian, 2 * Math.PI + minValInRadian, AxisLabel.GetRadians(minValue), AxisLabel.GetRadians(maxValue), AxisLabel.GetRadians(angles[i]));
Double x = Radius * Math.Cos(actualAngle) + Center.X;
Double y = Radius * Math.Sin(actualAngle) + Center.Y;
ListOfPoints4CircularAxis.Add(new Point(x, y));
AnglesInRadian.Add(actualAngle);
}
}
/// <summary>
/// Update circular plotdetails
/// </summary>
/// <param name="circularLabels"></param>
/// <param name="radius"></param>
internal void UpdateCircularPlotDetails(List<CircularAxisLabel> circularLabels, Double radius)
{
ListOfPoints4CircularAxis.Clear();
foreach (CircularAxisLabel label in circularLabels)
{
ListOfPoints4CircularAxis.Add(label.Position);
}
Radius = radius;
}
/// <summary>
/// Calculate AxisX points for Circular chart
/// </summary>
/// <param name="width"></param>
/// <param name="height"></param>
/// <param name="axisX"></param>
/// <param name="maxDataPointsCount"></param>
internal void CalculateAxisXLabelsPoints4Radar(Double width, Double height, Boolean isAxisLabelsEnabled, Int32 maxDataPointsCount)
{
Int32 noOfSpikes = maxDataPointsCount;
Double startAngle = -Math.PI / 2;
Double actualAngle = startAngle;
Int32 nextIteration = 1;
Double minAngle = 0;
Double radius = Math.Min(width, height) / 2;
Double reducedPercent = 10;
if (isAxisLabelsEnabled)
{
reducedPercent = 20;
}
Radius = radius - (radius * reducedPercent / 100);
Center = new Point(width / 2, height / 2);
//ListOfPoints4CircularAxis = new List<Point>();
AnglesInRadian = new List <Double>();
MinAngleInDegree = 360.0 / noOfSpikes;
for (Int32 i = 0; i < noOfSpikes; i++)
{
Double x = Radius * Math.Cos(actualAngle) + Center.X;
Double y = Radius * Math.Sin(actualAngle) + Center.Y;
ListOfPoints4CircularAxis.Add(new Point(x, y));
AnglesInRadian.Add(actualAngle);
minAngle = MinAngleInDegree * nextIteration++;
actualAngle = AxisLabel.GetRadians(minAngle) - (Math.PI / 2);
}
}
