PolyQuadraticBezierSegment.Points Propriété
Définition
Important
Certaines informations portent sur la préversion du produit qui est susceptible d’être en grande partie modifiée avant sa publication. Microsoft exclut toute garantie, expresse ou implicite, concernant les informations fournies ici.
Obtient ou définit la PointCollection qui définit cet objet PolyQuadraticBezierSegment.
public:
property System::Windows::Media::PointCollection ^ Points { System::Windows::Media::PointCollection ^ get(); void set(System::Windows::Media::PointCollection ^ value); };public System.Windows.Media.PointCollection Points { get; set; }member this.Points : System.Windows.Media.PointCollection with get, setPublic Property Points As PointCollectionValeur de propriété
Collection qui définit la forme de cet objet PolyQuadraticBezierSegment. La valeur par défaut est une collection vide.
Exemples
L’exemple suivant montre comment utiliser PolyQuadraticBezierSegment pour créer deux courbes de Bezier quadratique. Les points de contrôle et de fin des courbes sont spécifiés en définissant la Points propriété.
<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
<StackPanel>
<Canvas>
<Path Stroke="Black" StrokeThickness="1">
<Path.Data>
<PathGeometry>
<PathGeometry.Figures>
<PathFigureCollection>
<!-- The StartPoint specifies the starting point of the first curve. -->
<PathFigure StartPoint="10,100">
<PathFigure.Segments>
<PathSegmentCollection>
<!-- The PolyQuadraticBezierSegment specifies two Bezier curves.
The first curve is from 10,100 (start point specified above)
to 300,100 with a control point of 200,200. The second curve
is from 200,200 (end of the last curve) to 30,400 with a
control point of 0,200. -->
<PolyQuadraticBezierSegment Points="200,200 300,100 0,200 30,400" />
</PathSegmentCollection>
</PathFigure.Segments>
</PathFigure>
</PathFigureCollection>
</PathGeometry.Figures>
</PathGeometry>
</Path.Data>
</Path>
</Canvas>
</StackPanel>
</Page>
using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;
using System.Windows.Shapes;
namespace SDKSample
{
public partial class PolyQuadraticBezierSegmentExample : Page
{
public PolyQuadraticBezierSegmentExample()
{
// Create a PathFigure to be used for the PathGeometry of myPath.
PathFigure myPathFigure = new PathFigure();
// Set the starting point for the PathFigure specifying that the
// geometry starts at point 10,100.
myPathFigure.StartPoint = new Point(10, 100);
// Create a PointCollection that holds the Points used to specify
// the points of the PolyQuadraticBezierSegment below.
PointCollection myPointCollection = new PointCollection(4);
myPointCollection.Add(new Point(200, 200));
myPointCollection.Add(new Point(300, 100));
myPointCollection.Add(new Point(0, 200));
myPointCollection.Add(new Point(30, 400));
// The PolyQuadraticBezierSegment specifies two Bezier curves.
// The first curve is from 10,100 (start point specified above)
// to 300,100 with a control point of 200,200. The second curve
// is from 200,200 (end of the last curve) to 30,400 with a
// control point of 0,200.
PolyQuadraticBezierSegment myBezierSegment = new PolyQuadraticBezierSegment();
myBezierSegment.Points = myPointCollection;
PathSegmentCollection myPathSegmentCollection = new PathSegmentCollection();
myPathSegmentCollection.Add(myBezierSegment);
myPathFigure.Segments = myPathSegmentCollection;
PathFigureCollection myPathFigureCollection = new PathFigureCollection();
myPathFigureCollection.Add(myPathFigure);
PathGeometry myPathGeometry = new PathGeometry();
myPathGeometry.Figures = myPathFigureCollection;
// Create a path to draw a geometry with.
Path myPath = new Path();
myPath.Stroke = Brushes.Black;
myPath.StrokeThickness = 1;
// specify the shape (quadratic Bezier curve) of the path using the StreamGeometry.
myPath.Data = myPathGeometry;
// Add path shape to the UI.
StackPanel mainPanel = new StackPanel();
mainPanel.Children.Add(myPath);
this.Content = mainPanel;
}
}
}
Imports System.Windows
Imports System.Windows.Controls
Imports System.Windows.Media
Imports System.Windows.Shapes
Namespace SDKSample
Partial Public Class PolyQuadraticBezierSegmentExample
Inherits Page
Public Sub New()
' Create a PathFigure to be used for the PathGeometry of myPath.
Dim myPathFigure As New PathFigure()
' Set the starting point for the PathFigure specifying that the
' geometry starts at point 10,100.
myPathFigure.StartPoint = New Point(10, 100)
' Create a PointCollection that holds the Points used to specify
' the points of the PolyQuadraticBezierSegment below.
Dim myPointCollection As New PointCollection(4)
myPointCollection.Add(New Point(200, 200))
myPointCollection.Add(New Point(300, 100))
myPointCollection.Add(New Point(0, 200))
myPointCollection.Add(New Point(30, 400))
' The PolyQuadraticBezierSegment specifies two Bezier curves.
' The first curve is from 10,100 (start point specified above)
' to 300,100 with a control point of 200,200. The second curve
' is from 200,200 (end of the last curve) to 30,400 with a
' control point of 0,200.
Dim myBezierSegment As New PolyQuadraticBezierSegment()
myBezierSegment.Points = myPointCollection
Dim myPathSegmentCollection As New PathSegmentCollection()
myPathSegmentCollection.Add(myBezierSegment)
myPathFigure.Segments = myPathSegmentCollection
Dim myPathFigureCollection As New PathFigureCollection()
myPathFigureCollection.Add(myPathFigure)
Dim myPathGeometry As New PathGeometry()
myPathGeometry.Figures = myPathFigureCollection
' Create a path to draw a geometry with.
Dim myPath As New Path()
myPath.Stroke = Brushes.Black
myPath.StrokeThickness = 1
' specify the shape (quadratic Bezier curve) of the path using the StreamGeometry.
myPath.Data = myPathGeometry
' Add path shape to the UI.
Dim mainPanel As New StackPanel()
mainPanel.Children.Add(myPath)
Me.Content = mainPanel
End Sub
End Class
End Namespace
Remarques
Les deux premiers points de la collection spécifient le point de contrôle et le point de terminaison du premier segment de courbe. Les deux points suivants spécifient le point de contrôle et le point de fin du deuxième segment de courbe, et ainsi de suite. La collection doit contenir un nombre pair de points.
Informations sur les propriétés de dépendance
| Champ d’identificateur | PointsProperty |
Propriétés de métadonnées définies sur true |
Aucun |