public static List<Point> Generate(int n = 1000, double width = 1.0, double height = 1.0)
{
// Probabilities
double[] p = {0.85, .92, .99, 1.00};
// Transformations
var a1 = new MatrixTransform(new Matrix(0.85, -0.04, 0.04, 0.85, 0, 1.6));
var a2 = new MatrixTransform(new Matrix(0.20, 0.23, -0.26, 0.22, 0, 1.6));
var a3 = new MatrixTransform(new Matrix(-0.15, 0.26, 0.28, 0.24, 0, 0.44));
var a4 = new MatrixTransform(new Matrix(0, 0, 0, 0.16, 0, 0));
var random = new Random();
var point = new Point(0.5, 0.5);
var points = new List<Point>();
// Transformation for [-3,3,0,10] => output coordinates
var T = new MatrixTransform(new Matrix(width/6.0, 0, 0, -height/10.1, width/2.0, height));
for (int i = 0; i < n; i++)
{
var r = random.NextDouble();
if (r < p[0])
point = a1.Transform(point);
else if (r < p[1])
point = a2.Transform(point);
else if (r < p[2])
point = a3.Transform(point);
else
point = a4.Transform(point);
points.Add(T.Transform(point));
}
return points;
}
void Manipulation(ManipulationDeltaEventArgs e)
{
var mt = new MatrixTransform(ShapeUtils.GetTransform(e));
var Point1 = mt.Transform(new Point(line.X1, line.Y1));
var Point2 = mt.Transform(new Point(line.X2, line.Y2));
line.X1 = Point1.X;
line.Y1 = Point1.Y;
line.X2 = Point2.X;
line.Y2 = Point2.Y;
}
public void Reset()
{
mPoints = new List<Point>(defaultPoints);
//randomize center
double x = Util.Rand(0, Config.WindowWidth);
double y = Util.Rand(0, Config.WindowHeight);
mCenter = new Point(x,y);
Util.BaitWithinWindow(ref mCenter);
double angle = Util.Rand((int)0, (int)180);
Matrix m = new Matrix(1, 0, 0, 1, 0, 0);
m.Scale(mScale, mScale); //scale at (0,0)
m.Rotate(angle); //rotate at (0,0)
m.Translate(mCenter.X, mCenter.Y);
MatrixTransform mt = new MatrixTransform(m);
for (int i = 0; i < mPoints.Capacity; i++)
mPoints[i] = mt.Transform(mPoints[i]);
mPolygon.Points = new PointCollection(mPoints);
}
/// <summary>
/// Gets the resolution in DPI of the target device of a visual.
/// </summary>
public static Point GetResolution(Visual visual)
{
Point dpi = new Point(120, 120);
PresentationSource source = PresentationSource.FromVisual(visual);
if (source == null)
return dpi;
CompositionTarget target = source.CompositionTarget;
Matrix m = target.TransformToDevice;
MatrixTransform t = new MatrixTransform(m);
Point pt1 = new Point(0, 0);
pt1 = t.Transform(pt1);
Point pt2 = new Point(96, 96);
pt2 = t.Transform(pt2);
dpi.X = pt2.X - pt1.X;
dpi.Y = pt2.Y - pt1.Y;
return dpi;
}
protected override void OnRender(DrawingContext dc)
{
// Draw background
dc.DrawRectangle(Brushes.White, null, new Rect(RenderSize));
Transform t = new MatrixTransform(TheModel.GetTikzToScreenTransform().ToWpfMatrix());
t.Freeze();
Pen pen = new Pen(Brushes.WhiteSmoke, 1);
pen.Freeze();
TheModel.DrawRaster(
(p1, p2) => dc.DrawLine(pen, t.Transform(p1), t.Transform(p2)),
(r1, r2) =>
{
EllipseGeometry eg = new EllipseGeometry(new Point(0, 0), r1, r2);
eg.Transform = t;
eg.Freeze();
dc.DrawGeometry(null, pen, eg);
});
}
void Manipulation(ManipulationDeltaEventArgs e)
{
var mt = new MatrixTransform(ShapeUtils.GetTransform(e));
var newTopLeft = mt.Transform(getBadgePos());
setBadgePos(newTopLeft.X, newTopLeft.Y);
}
