Tutor.com Classroom How-To #9: creating a Path object from a Stroke

These How-To tips are taken from The Tutor.com Classroom: Architecture and techniques using Silverlight, WPF, and the Microsoft .NET Framework.

You can check out the Silverlight Tutor.com Classroom in "practice" mode, although the real experience is with a live tutor on the other side!

Simply transfer Stroke stylus points to a PolyLineSegment on a Path:

static Path getPathFromStroke(Stroke str)
{
  //make a path from this stroke
  Path path = new Path();
  PathGeometry pg = new PathGeometry();

  //start our figure from the first stylus point in the stroke
  PathFigure fg = new PathFigure();
  fg.Segments = new PathSegmentCollection();
  fg.StartPoint = new Point(str.StylusPoints[0].X, str.StylusPoints[0].Y);

  PolyLineSegment seg = new PolyLineSegment();

  //add each additional stylus point to the line segment
  for (int x = 1; x < str.StylusPoints.Count; x++)
    StylusPoint sp = str.StylusPoints[x];

  seg.Points.Add(new Point(sp.X, sp.Y));

  fg.Segments.Add(seg);

  pg.Figures = new PathFigureCollection();
  pg.Figures.Add(fg);

  path.Data = pg;

  return path;
}