public async Task Draw(CanvasVertex canvasVertex)
{
await Application.Current.Dispatcher.InvokeAsync(() =>
{
var ellipse = new Ellipse
{
Width = EllipseSize,
Height = EllipseSize,
Fill = Brushes.Red
};
var tb = new TextBlock
{
Text = canvasVertex.Id.ToString(),
Background = Brushes.Transparent,
FontSize = 15,
};
this.SetOnCanvas(ellipse, canvasVertex);
this.SetOnCanvas(tb, canvasVertex);
this.VerticesOnCanvas.TryAdd(canvasVertex.PrimaryVertex, new Tuple <Ellipse, TextBlock>(ellipse, tb));
this.Canvas.Children.Add(ellipse);
this.Canvas.Children.Add(tb);
});
}
private void SetOnCanvas(FrameworkElement element, CanvasVertex canvasVertex)
{
Application.Current.Dispatcher.InvokeAsync(() =>
{
Canvas.SetLeft(element, (this.Canvas.Width / 2) + canvasVertex.X - (element.Height / 2));
Canvas.SetTop(element, (this.Canvas.Height / 2) + canvasVertex.Y - (element.Height / 2));
});
}