void DrawDual(Tessellation tessellation)
{
foreach (var poly in tessellation.Polygons)
{
Path path = new Path()
{
Stroke = new SolidColorBrush(Colors.Yellow),
StrokeThickness = 1.0,
Data = new PathGeometry()
};
for (int e = 0; e < poly.edges.Count; ++e)
{
if (poly.edges[e].Neighbors.Count == 2)
{
PathFigure figure = new PathFigure()
{
IsClosed = false, IsFilled = false
};
var geodesic = tessellation.GetGeodesicLine(new Edge(poly.edges[e].Neighbors[0], poly.edges[e].Neighbors[1]));
figure.StartPoint = geodesic.A;
figure.Segments.Add(HyperbolicLineSegment(geodesic));
(path.Data as PathGeometry).Figures.Add(figure);
}
}
this.MyCanvas.Children.Add(path);
}
}
void Draw(Tessellation tessellation, Brush evenBrush, Brush oddBrush)
{
this.MyCanvas.Children.Clear();
this.MyCanvas.Children.Add(new Path
{
Stroke = new SolidColorBrush(Colors.LightGray),
StrokeThickness = 1.0,
Data = new EllipseGeometry(tessellation.Disk.Center, tessellation.Disk.Radius, tessellation.Disk.Radius),
});
foreach (var poly in tessellation.Polygons)
{
Path path = new Path()
{
Stroke = new SolidColorBrush(Colors.Yellow),
StrokeThickness = 1.0,
};
if (poly.level % 2 == 0)
{
path.Fill = evenBrush;
}
else
{
path.Fill = oddBrush;
}
PathFigure figure = new PathFigure()
{
IsClosed = true, IsFilled = true
};
for (int e = 0; e < poly.edges.Count; ++e)
{
var geodesic = tessellation.GetGeodesicLine(poly.edges[e]);
if (e == 0)
{
figure.StartPoint = geodesic.A;
}
figure.Segments.Add(HyperbolicLineSegment(geodesic));
}
path.Data = new PathGeometry(new PathFigure[] { figure });
this.MyCanvas.Children.Add(path);
}
if (Dual.IsChecked.HasValue && (bool)Dual.IsChecked)
{
DrawDual(tessellation);
}
}