private void SetPointFlag(RectangleF rect)
{
Matrix matrix = DisplayMatrix.Clone();
if (!matrix.IsInvertible)
{
return;
}
matrix.Invert();
PointF[] fs = new PointF[] { rect.Location, new PointF(rect.Right, rect.Bottom) };
matrix.TransformPoints(fs);
PointLayout.PixelToPointMatrix.TransformPoints(fs);
RectangleF rectangle = RectangleF.FromLTRB(Math.Min(fs[0].X, fs[1].X), Math.Min(fs[0].Y, fs[1].Y),
Math.Max(fs[0].X, fs[1].X), Math.Max(fs[0].Y, fs[1].Y));
foreach (LayoutPoint point in PointLayout.Points)
{
if (rectangle.Contains((int)Math.Round(point.Point.X), (int)Math.Round(point.Point.Y)))
{
point.Selected = true;
}
else
{
point.Selected = false;
}
}
}
private void SetPointFlag(PointF pixel, float distance)
{
Matrix matrix = DisplayMatrix.Clone();
if (!matrix.IsInvertible)
{
return;
}
matrix.Invert();
PointF[] fs = new PointF[] { pixel };
matrix.TransformPoints(fs);
PointLayout.PixelToPointMatrix.TransformPoints(fs);
foreach (LayoutPoint point in PointLayout.Points)
{
point.Selected = false;
}
foreach (LayoutPoint point in PointLayout.Points)
{
if (Math.Sqrt(Math.Pow(fs[0].X - point.Point.X, 2) + Math.Pow(fs[0].Y - point.Point.Y, 2)) < distance)
{
point.Selected = true;
break;
}
}
}