/// <summary>
/// Gets a rectangle suitable for drawing.
/// </summary>
/// <remarks>
/// Top and left are floored to pixel boundaries.
/// Width and height are rounded up.
/// **No border pixels are substracted from width or height!**.
/// </remarks>
/// <param name="event">The event to get the border for.</param>
/// <returns>The rectangle representing the border.</returns>
public RectangleF GetPixelRectangle(ISpectralEvent @event)
{
// todo: optimise
return(new RectangleF(
this.GetPoint(@event),
this.GetSize(@event)));
}
/// <summary>
/// Gets the top and left of an event, in a fashion suitable for drawing.
/// </summary>
/// <remarks>
/// Top and left are floored to pixel boundaries.
/// </remarks>
/// <param name="event">The event to get the point for.</param>
/// <returns>The point.</returns>
public PointF GetPoint(ISpectralEvent @event)
{
var raw = new PointF(
(float)this.TemporalScale.To(@event.EventStartSeconds),
(float)this.SpectralScale.To(@event.HighFrequencyHertz));
return(Point.Truncate(raw));
}
/// <summary>
/// Gets the width and height of an event.
/// </summary>
/// <remarks>
/// Width and height are rounded up.
/// </remarks>
/// <param name="event">The event to get the size for.</param>
/// <returns>The size.</returns>
public SizeF GetSize(ISpectralEvent @event)
{
var width = this.TemporalScale.ToMagnitude(@event.EventDurationSeconds);
var height = this.SpectralScale.ToMagnitude(@event.BandWidthHertz);
var raw = new SizeF((float)width, (float)height);
var rounded = Size.Round(raw);
return(rounded);
}
