PolyQuadraticBezierSegment.Points Propiedad
Definición
Importante
Parte de la información hace referencia a la versión preliminar del producto, que puede haberse modificado sustancialmente antes de lanzar la versión definitiva. Microsoft no otorga ninguna garantía, explícita o implícita, con respecto a la información proporcionada aquí.
Obtiene o establece la colección PointCollection que define este objeto 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 PointCollectionValor de propiedad
Colección que define la forma de este objeto PolyQuadraticBezierSegment. El valor predeterminado es una colección vacía.
Ejemplos
En el ejemplo siguiente se muestra cómo usar PolyQuadraticBezierSegment para crear dos curvas bezier cuadráticas. El control y los puntos finales de las curvas se especifican estableciendo la Points propiedad .
<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
Comentarios
Los dos primeros puntos de la colección especifican el punto de control y el punto final del primer segmento de curva. Los dos puntos siguientes especifican el punto de control y el punto final del segundo segmento de curva, etc. La colección debe contener un número par de puntos.
Información sobre propiedades de dependencia
| Campo identificador | PointsProperty |
Propiedades de metadatos establecidas en true |
Ninguno |