/// <summary>
/// Gets the clipping rectangle.
/// </summary>
/// <param name="element">The <see cref="ITransposablePlotElement" />.</param>
/// <returns>The clipping rectangle.</returns>
public static OxyRect GetClippingRect(this ITransposablePlotElement element)
{
var p1 = new ScreenPoint(element.XAxis.ScreenMin.X, element.YAxis.ScreenMin.Y);
var p2 = new ScreenPoint(element.XAxis.ScreenMax.X, element.YAxis.ScreenMax.Y);
return(new OxyRect(element.Orientate(p1), element.Orientate(p2)));
}
/// <summary>
/// Transposes the ScreenVector if the series is transposed. Reverses the respective direction if X or Y axis are reversed.
/// </summary>
/// <param name="element">The <see cref="ITransposablePlotElement" />.</param>
/// <param name="vector">The <see cref="ScreenVector" /> to orientate.</param>
/// <returns>The oriented vector.</returns>
public static ScreenVector Orientate(this ITransposablePlotElement element, ScreenVector vector)
{
vector = new ScreenVector(
element.XAxis.IsReversed ? -vector.X : vector.X,
element.YAxis.IsReversed ? -vector.Y : vector.Y);
return(element.IsTransposed() ? new ScreenVector(-vector.Y, -vector.X) : vector);
}
/// <summary>
/// Orientates a HorizontalAlignment and a VerticalAlignment according to whether the Series is transposed or the Axes are reversed.
/// </summary>
/// <param name="element">The <see cref="ITransposablePlotElement" />.</param>
/// <param name="ha">The <see cref="HorizontalAlignment" /> to orientate.</param>
/// <param name="va">The <see cref="VerticalAlignment" /> to orientate.</param>
public static void Orientate(
this ITransposablePlotElement element,
ref HorizontalAlignment ha,
ref VerticalAlignment va)
{
if (element.XAxis.IsReversed)
{
ha = (HorizontalAlignment)(-(int)ha);
}
if (element.YAxis.IsReversed)
{
va = (VerticalAlignment)(-(int)va);
}
if (element.IsTransposed())
{
var orientatedHa = (HorizontalAlignment)(-(int)va);
va = (VerticalAlignment)(-(int)ha);
ha = orientatedHa;
}
}
/// <summary>
/// Transposes the ScreenPoint if the series is transposed.
/// </summary>
/// <param name="element">The <see cref="ITransposablePlotElement" />.</param>
/// <param name="point">The <see cref="ScreenPoint" /> to orientate.</param>
/// <returns>The oriented point.</returns>
public static ScreenPoint Orientate(this ITransposablePlotElement element, ScreenPoint point)
{
return(element.IsTransposed() ? new ScreenPoint(point.Y, point.X) : point);
}
/// <summary>
/// Checks if the series is transposed.
/// </summary>
/// <returns>True if the series is transposed, False otherwise.</returns>
/// <param name="element">The <see cref="ITransposablePlotElement" />.</param>
public static bool IsTransposed(this ITransposablePlotElement element)
{
return(element.XAxis.IsVertical());
}
/// <summary>
/// Transforms from a screen point to a data point by the axes of this series.
/// </summary>
/// <param name="element">The <see cref="ITransposablePlotElement" />.</param>
/// <param name="p">The screen point.</param>
/// <returns>A data point.</returns>
public static DataPoint InverseTransform(this ITransposablePlotElement element, ScreenPoint p)
{
p = element.Orientate(p);
return(element.XAxis.InverseTransform(p.X, p.Y, element.YAxis));
}
/// <summary>
/// Transforms the specified data point to a screen point by the axes of this series.
/// </summary>
/// <param name="element">The <see cref="ITransposablePlotElement" />.</param>
/// <param name="p">The point.</param>
/// <returns>A screen point.</returns>
public static ScreenPoint Transform(this ITransposablePlotElement element, DataPoint p)
{
return(element.Transform(p.X, p.Y));
}
/// <summary>
/// Transforms the specified coordinates to a screen point by the axes of this series.
/// </summary>
/// <param name="element">The <see cref="ITransposablePlotElement" />.</param>
/// <param name="x">The x coordinate.</param>
/// <param name="y">The y coordinate.</param>
/// <returns>A screen point.</returns>
public static ScreenPoint Transform(this ITransposablePlotElement element, double x, double y)
{
return(element.Orientate(element.XAxis.Transform(x, y, element.YAxis)));
}
