public static ControlPointViewModelBase GetClosestPoint([ItemNotNull, NotNull] IEnumerable <ControlPointViewModelBase> points, WindowsPoint position, double maximumDistance = double.PositiveInfinity)
{
ControlPointViewModelBase closest = null;
var closestDistance = double.MaxValue;
foreach (var p in points)
{
var distance = (p.ActualPoint - position).LengthSquared;
if (distance < closestDistance && distance < maximumDistance * maximumDistance)
{
closest = p;
closestDistance = distance;
}
}
return(closest);
}
public override bool RemovePoint(ControlPointViewModelBase point)
{
var kfcp = point as KeyFrameControlPointViewModel <TValue>;
if (kfcp == null)
{
return(false);
}
var index = new NodeIndex(controlPoints.IndexOf(kfcp));
if (index.Int == -1)
{
return(false);
}
var kf = KeyFramesNode.Retrieve(index);
KeyFramesNode.Remove(kf, index);
return(true);
}
public abstract bool RemovePoint(ControlPointViewModelBase point);