/// <summary>
/// Renders the labels.
/// </summary>
private void RenderLabels()
{
double aroundRadius = this.Radius + Math.Max(Axis.TickLineSize, 0);
int pos = 0;
foreach (ChartAxisLabel label in Axis.VisibleLabels)
{
double coef = this.Axis.ValueToPolarCoefficient(label.Position);
FrameworkElement element = (FrameworkElement)contentControlRecycler[pos];
Point vector = ChartTransform.ValueToVector(this.Axis, label.Position);
Point connectPoint = new Point(this.Center.X + aroundRadius * vector.X,
this.Center.Y + aroundRadius * vector.Y);
var labelwidth = ((element as UIElement).DesiredSize.Width) / 2;
if (coef == 0.25d)
{
connectPoint.X -= element.DesiredSize.Width;
connectPoint.Y -= element.DesiredSize.Height / 2;
}
else if (coef == 0.5d)
{
connectPoint.X -= element.DesiredSize.Width / 2;
}
else if (coef == 0.75d)
{
connectPoint.Y -= element.DesiredSize.Height / 2;
}
else if (coef == 1d || coef == 0d)
{
connectPoint.X -= element.DesiredSize.Width / 2;
connectPoint.Y -= element.DesiredSize.Height;
}
else if (0 < coef && coef < 0.25d)
{
connectPoint.X -= element.DesiredSize.Width;
connectPoint.Y -= element.DesiredSize.Height;
}
else if (0.25d < coef && coef < 0.5d)
{
connectPoint.X -= element.DesiredSize.Width;
}
else if (0.75d < coef && coef < 1d)
{
connectPoint.Y -= element.DesiredSize.Height;
}
// element.Arrange(new Rect(connectPoint, element.DesiredSize));
Canvas.SetLeft(element, connectPoint.X);
Canvas.SetTop(element, connectPoint.Y);
pos++;
}
}
/// <summary>
/// Transforms chart cordinates to real coordinates.
/// </summary>
/// <param name="x">The x value.</param>
/// <param name="y">The y value.</param>
/// <returns>The visible point</returns>
public Point TransformToVisible(double x, double y)
{
x = x = x_IsLogarithmic && x > 0 ? Math.Log(x, xlogarithmicBase) : x;
y = y_IsLogarithmic && y > 0 ? Math.Log(y, ylogarithmicBase) : y;
double radius = m_radius * m_yAxis.ValueToCoefficient(y);
Point point = ChartTransform.ValueToVector(m_xAxis, x);
return(new Point(m_center.X + radius * point.X, m_center.Y + radius * point.Y));
}
/// <summary>
/// Renders the tick lines.
/// </summary>
private void RenderTicks()
{
Point center = this.Center;
double radius = this.Radius;
int pos = 0;
foreach (ChartAxisLabel label in Axis.VisibleLabels)
{
Point vector = ChartTransform.ValueToVector(this.Axis, label.Position);
Line line = lineRecycler[pos];
Point connectPoint = new Point(center.X + radius * vector.X, center.Y + radius * vector.Y);
line.X1 = connectPoint.X;
line.Y1 = connectPoint.Y;
line.X2 = connectPoint.X + Axis.TickLineSize * vector.X;
line.Y2 = connectPoint.Y + Axis.TickLineSize * vector.Y;
pos++;
}
}