PolyQuadraticBezierSegment.Points Özellik

Tanım

Ad Alanı:

System.Windows.Media

Bütünleştirilmiş Kod:

PresentationCore.dll

Bu PolyQuadraticBezierSegment nesneyi tanımlayan öğesini PointCollection alır veya ayarlar.

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, set

Public Property Points As PointCollection

Özellik Değeri

PointCollection

Bu PolyQuadraticBezierSegment nesnenin şeklini tanımlayan bir koleksiyon. Varsayılan değer boş bir koleksiyondur.

Örnekler

Aşağıdaki örnekte iki ikinci dereceden Bezier eğrisi oluşturmak için nasıl kullanılacağı PolyQuadraticBezierSegment gösterilmektedir. Eğrilerin denetim ve bitiş noktaları özelliği ayarlanarak Points belirtilir.

<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

Açıklamalar

Koleksiyondaki ilk iki nokta, ilk eğri kesiminin denetim noktasını ve bitiş noktasını belirtir. Sonraki iki nokta, ikinci eğri kesiminin denetim noktasını ve bitiş noktasını vb. belirtir. Koleksiyon çift sayıda nokta içermelidir.

Bağımlılık Özelliği Bilgileri

Tanımlayıcı alanı	PointsProperty
Meta veri özellikleri olarak ayarlandı true	Hiçbiri