/// <summary>
///
/// </summary>
/// <param name="quadraticBezier"></param>
/// <param name="selection"></param>
/// <param name="selected"></param>
/// <param name="dx"></param>
/// <param name="dy"></param>
/// <returns></returns>
public static bool HitTestQadraticBezier(XQuadraticBezier quadraticBezier, Vector2[] selection, ISet <BaseShape> selected, double dx, double dy)
{
var points = quadraticBezier.GetPoints().ToImmutableArray();
if (ConvexHullBounds.Overlap(selection, points, dx, dy))
{
if (selected != null)
{
selected.Add(quadraticBezier);
return(false);
}
else
{
return(true);
}
}
return(false);
}
/// <summary>
///
/// </summary>
/// <param name="quadraticBezier"></param>
/// <param name="v"></param>
/// <param name="threshold"></param>
/// <param name="dx"></param>
/// <param name="dy"></param>
/// <returns></returns>
public static BaseShape HitTestQuadraticBezier(XQuadraticBezier quadraticBezier, Vector2 v, double threshold, double dx, double dy)
{
if (RectangleBounds.GetPointBounds(quadraticBezier.Point1, threshold, dx, dy).Contains(v))
{
return(quadraticBezier.Point1);
}
if (RectangleBounds.GetPointBounds(quadraticBezier.Point2, threshold, dx, dy).Contains(v))
{
return(quadraticBezier.Point2);
}
if (RectangleBounds.GetPointBounds(quadraticBezier.Point3, threshold, dx, dy).Contains(v))
{
return(quadraticBezier.Point3);
}
if (ConvexHullBounds.Contains(quadraticBezier.GetPoints().ToImmutableArray(), v, dx, dy))
{
return(quadraticBezier);
}
return(null);
}