private void RandomizeEntries()
{
for (int i = 0; i < Data.PointsOfInterest.Count; i++)
{
var pnt = Data.PointsOfInterest[r.Next(Data.PointsOfInterest.Count)];
pnt.X = r.NextDouble() * width - width * .5;
pnt.Y = r.NextDouble() * height - height * .5;
}
}