Point[] GetHull(VectorShape shape, Matrix matrix, int delta)
{
var vector = shape.Data;
//vector.Transform(matrix);
//return vector.PolygonHull(delta, true);
var oldHull = vector.Hull(delta, true);
matrix.Transform(oldHull);
return(GDIConverter.Convert(oldHull));
}
void IReceiver.Perform()
{
var points = new Set <Xwt.Point>();
var matrix = new Matrix(this.Camera.Matrix);
var layout = this.Layout();
if (Data != null && Data.Requests.Count != 0)
{
foreach (var command in Data.Requests)
{
if (command != null && command.Subject != null)
{
if (command.Subject.Shape != null)
{
var hull = command.Subject.Shape.Hull(tolerance, true);
points.AddRange(hull);
}
if (command is StateChangeCommand <IVisual> )
{
var hull = layout.GetDataHull(
command.Subject, ((StateChangeCommand <IVisual>)command).Parameter.One,
tolerance, true);
points.AddRange(hull);
}
else
{
var hull = layout.GetDataHull(command.Subject, tolerance, true);
points.AddRange(hull);
}
}
}
}
//points = points.Distinct ().ToList();
if (points.Count > 2)
{
var resultI = new GrahamConvexHull().FindHull(points).ToArray();
//matrix.Invert ();
matrix.Transform(resultI);
CommandsHull = Array.ConvertAll <Xwt.Point, Point>(resultI, a => a.ToGdi());
}
else
{
CommandsHull = new Point[0];
}
}
public void PointTransform ()
{
var m = new Matrix (2, 0, 0, 2, 4, 4);
var p = new Point (5, 6);
Assert.AreEqual (new Point (14, 16), m.Transform (p));
var ps = new Point[10];
for (int i = 0; i < ps.Length; i++)
ps [i] = new Point (3 * i, 2 * i);
m.Transform (ps);
for (int i = 0; i < ps.Length; i++)
Assert.AreEqual (m.Transform (new Point (3 * i, 2 * i)), ps [i]);
}
/// <summary>
/// Transforms the array of points by the current transformation matrix (CTM)
/// </summary>
public void TransformPoints(Point[] points)
{
Matrix m = GetCTM();
m.Transform(points);
}
/// <summary>
/// Transforms the point (x, y) by the current transformation matrix (CTM)
/// </summary>
public Point TransformPoint(Point p)
{
Matrix m = GetCTM();
return(m.Transform(p));
}
