Dessiner un chemin par programme

Question

J'apprends des formes de dessin dans WPF. Je veux dessiner un Path par programme, pas par le biais de XAML. Je ne sais pas ce que l'on peut assigner à la propriété Data.

Path p = new Path(); 
p.Data = ??? 

Answer 1

Regardez the sample in the MSDN:

//Add the Path Element 
myPath = new Path(); 
myPath.Stroke = System.Windows.Media.Brushes.Black; 
myPath.Fill = System.Windows.Media.Brushes.MediumSlateBlue; 
myPath.StrokeThickness = 4; 
myPath.HorizontalAlignment = HorizontalAlignment.Left; 
myPath.VerticalAlignment = VerticalAlignment.Center; 
EllipseGeometry myEllipseGeometry = new EllipseGeometry(); 
myEllipseGeometry.Center = new System.Windows.Point(50,50); 
myEllipseGeometry.RadiusX = 25; 
myEllipseGeometry.RadiusY = 25; 
myPath.Data = myEllipseGeometry; 
myGrid.Children.Add(myPath); 

Il est la ligne myPath.Data = myEllipseGeometry; que vous recherchez. Attribuez-lui simplement un objet Geometry.

Answer 2

Voici un exemple de quelque chose que je faisais des expériences avec:

using Windows.Foundation; 
using Windows.UI; 
using Windows.UI.Xaml; 
using Windows.UI.Xaml.Controls; 
using Windows.UI.Xaml.Shapes; 
using Windows.UI.Xaml.Media; 
using Windows.UI.Xaml.Data; 

namespace GridNineExperiment 
{ 

    public class Hamburger : Button 
    { 

     static GeometryCollection DataHamburger = new GeometryCollection 
     { 
      new RectangleGeometry {Rect = new Rect{X = 0, Y = 0, Width = 20, Height = 5 }}, 
      new RectangleGeometry {Rect = new Rect{X = 0, Y = 10, Width = 20, Height = 5 }}, 
      new RectangleGeometry {Rect = new Rect{X = 0, Y = 20, Width = 20, Height = 5 }}, 
     }; 

     static Path PathHamburger = new Path 
     { 
      Fill = new SolidColorBrush(Colors.White), 
      Stroke = new SolidColorBrush(Colors.Black), 
      StrokeThickness = 1.0, 
      Data = new GeometryGroup { Children = DataHamburger } 
     }; 

    public Hamburger() 
    { 
     Content = PathHamburger; 
    } 
}