public static IEnumerable <Path> CreatePaths(DataPath data)
{
yield return(Visualizer.CreateFillPath(PathFormatter.ToString(data)));
foreach (var x in data.Subpaths.SelectMany(Visualizer.CreatePathsForSubpath))
{
yield return(x);
}
}
public static IEnumerable <Path> CreatePathsForSubpath(Subpath subpath)
{
var source = PathFormatter.ToString(subpath);
var hash = BitConverter.GetBytes(source.GetHashCode());
var color = ColorHelper.FromHsb(360f * hash[0] / 255, 0.5f * hash[1] / 255 + 0.5f, 0.5f * hash[2] / 255);
var group1 = new GeometryGroup();
group1.Children.Add(Geometry.Parse(source));
group1.Children.Add(new RectangleGeometry(new Rect(subpath.StartPoint.X - 2.5, subpath.StartPoint.Y - 2.5, 5, 5)));
foreach (var segment in subpath.Segments)
{
group1.Children.Add(new EllipseGeometry(new Point(segment.EndPoint.X, segment.EndPoint.Y), 1.5, 1.5));
}
yield return(new Path
{
Data = group1,
Stroke = new SolidColorBrush(color),
StrokeThickness = 3,
Opacity = 0.5
});
var intersections = subpath.ClosedSegments.SelectMany(x => x.Intersections).ToArray();
if (intersections.Length == 0)
{
yield break;
}
var group2 = new GeometryGroup();
foreach (var point in intersections)
{
group2.Children.Add(new EllipseGeometry(new Point(point.X, point.Y), 1, 1));
}
yield return(new Path
{
Data = group2,
Stroke = new SolidColorBrush(Colors.Black),
StrokeThickness = 2,
Opacity = 0.3
});
}
private static bool Equals(Subpath subpath1, Subpath subpath2)
{
return(PathFormatter.ToString(subpath1) == PathFormatter.ToString(subpath2));
}