public void Redraw(List <Drawable> drawables, ViewPort vp)
{
var drawingVisuals = new DrawingVisual();
visualCollection.Clear();
using (var dc = drawingVisuals.RenderOpen())
{
foreach (var drawable in drawables)
{
drawable.Draw(dc, vp);
}
}
visualCollection.Add(drawingVisuals);
}
public override void Draw(DrawingContext ctx, ViewPort vp)
{
_geometry.Clear();
var path = new PathFigure();
path.StartPoint = new Point(
_places[0].Coordinate.X + vp.X1 / vp.Scale,
_places[0].Coordinate.Y + vp.Y1 / vp.Scale);
for (var i = 1; i < _places.Count; i++)
{
var pt = new Point(
_places[i].Coordinate.X + vp.X1 / vp.Scale,
_places[i].Coordinate.Y + vp.Y1 / vp.Scale);
var edge = new LineSegment(pt, true);
path.Segments.Add(edge);
}
_geometry.Figures.Add(path);
ctx.DrawGeometry(Brushes.Transparent, new Pen(Brushes.Red, 3), _geometry);
}
public abstract void Draw(DrawingContext ctx, ViewPort vp);
public override void Draw(DrawingContext ctx, ViewPort vp)
{
var drawingRegion = new Rect(vp.X1, vp.Y1, _bmp.Width, _bmp.Height);
ctx.DrawImage(_bmp, drawingRegion);
}