Rect Rect Rect Rect Struct

Definizione

Descrive larghezza, altezza e posizione di un rettangolo.Describes the width, height, and location of a rectangle.

public value class Rect : IFormattable
[System.ComponentModel.TypeConverter(typeof(System.Windows.RectConverter))]
[System.Serializable]
public struct Rect : IFormattable
type Rect = struct
    interface IFormattable
Public Structure Rect
Implements IFormattable
Ereditarietà
Attributi
Implementazioni

Esempi

Nell'esempio seguente viene illustrato come utilizzare una Rect struttura per specificare le dimensioni e la posizione di un rettangolo utilizzando XAML.The following example shows how to use a Rect structure to specify the dimensions and location of a rectangle using XAML.

using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;
using System.Windows.Shapes;

namespace SDKSample
{
    public partial class RectExample : Page
    {
        public RectExample()
        {   
            Path myPath1 = new Path();
            myPath1.Stroke = Brushes.Black;
            myPath1.StrokeThickness = 1;
            SolidColorBrush mySolidColorBrush = new SolidColorBrush();
            mySolidColorBrush.Color = Color.FromArgb(255, 204, 204, 255);
            myPath1.Fill = mySolidColorBrush;

            // Create the rectangle.
            // This RectangleGeometry specifies a rectangle that is 100 pixels high and
            // 150 wide. The left side of the rectangle is 10 pixels from the left of the 
            // Canvas and the top side of the rectangle is 100 pixels from the top of the Canvas.  
            // Note: You could alternatively use the Rect Constructor to create this:
            // Rect my Rect1 = new Rect(10,100,150,100");
            Rect myRect1 = new Rect();
            myRect1.X = 10;
            myRect1.Y = 100;
            myRect1.Width = 150;
            myRect1.Height = 100;
            RectangleGeometry myRectangleGeometry1 = new RectangleGeometry();
            myRectangleGeometry1.Rect = myRect1;

            GeometryGroup myGeometryGroup1 = new GeometryGroup();
            myGeometryGroup1.Children.Add(myRectangleGeometry1);

            myPath1.Data = myGeometryGroup1;

            Path myPath2 = new Path();
            myPath2.Stroke = Brushes.Black;
            myPath2.StrokeThickness = 1;
            myPath2.Fill = mySolidColorBrush;

            // Create the rectangle.
            // This Rect uses the Size property to specify a height of 50 and width
            // of 200. The Location property uses a Point value to determine the location of the
            // top-left corner of the rectangle.
            Rect myRect2 = new Rect();
            myRect2.Size = new Size(50, 200);
            myRect2.Location = new Point(300, 100);
            RectangleGeometry myRectangleGeometry2 = new RectangleGeometry();
            myRectangleGeometry2.Rect = myRect2;

            GeometryGroup myGeometryGroup2 = new GeometryGroup();
            myGeometryGroup2.Children.Add(myRectangleGeometry2);

            myPath2.Data = myGeometryGroup2;

            // Add path shape to the UI.
            Canvas myCanvas = new Canvas();
            myCanvas.Children.Add(myPath1);
            myCanvas.Children.Add(myPath2);
            this.Content = myCanvas;       
        }
    }

}

Imports System.Windows
Imports System.Windows.Controls
Imports System.Windows.Media
Imports System.Windows.Shapes

Namespace SDKSample
    Partial Public Class RectExample
        Inherits Page
        Public Sub New()
            Dim myPath1 As New Path()
            myPath1.Stroke = Brushes.Black
            myPath1.StrokeThickness = 1
            Dim mySolidColorBrush As New SolidColorBrush()
            mySolidColorBrush.Color = Color.FromArgb(255, 204, 204, 255)
            myPath1.Fill = mySolidColorBrush

            ' Create the rectangle.
            ' This RectangleGeometry specifies a rectangle that is 100 pixels high and
            ' 150 wide. The left side of the rectangle is 10 pixels from the left of the 
            ' Canvas and the top side of the rectangle is 100 pixels from the top of the Canvas.  
            ' Note: You could alternatively use the Rect Constructor to create this:
            ' Dim myRect1 As New Rect(10,100,150,100")
            Dim myRect1 As New Rect()
            myRect1.X = 10
            myRect1.Y = 100
            myRect1.Width = 150
            myRect1.Height = 100
            Dim myRectangleGeometry1 As New RectangleGeometry()
            myRectangleGeometry1.Rect = myRect1

            Dim myGeometryGroup1 As New GeometryGroup()
            myGeometryGroup1.Children.Add(myRectangleGeometry1)

            myPath1.Data = myGeometryGroup1

            Dim myPath2 As New Path()
            myPath2.Stroke = Brushes.Black
            myPath2.StrokeThickness = 1
            myPath2.Fill = mySolidColorBrush

            ' Create the rectangle.
            ' This Rect uses the Size property to specify a height of 50 and width
            ' of 200. The Location property uses a Point value to determine the location of the
            ' top-left corner of the rectangle.
            Dim myRect2 As New Rect()
            myRect2.Size = New Size(50, 200)
            myRect2.Location = New Point(300, 100)
            Dim myRectangleGeometry2 As New RectangleGeometry()
            myRectangleGeometry2.Rect = myRect2

            Dim myGeometryGroup2 As New GeometryGroup()
            myGeometryGroup2.Children.Add(myRectangleGeometry2)

            myPath2.Data = myGeometryGroup2

            ' Add path shape to the UI.
            Dim myCanvas As New Canvas()
            myCanvas.Children.Add(myPath1)
            myCanvas.Children.Add(myPath2)
            Me.Content = myCanvas
        End Sub
    End Class

End Namespace
<Page  xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
  <Canvas>
    
    <!-- This rectangle demonstrates using the X, Y, Width, and Height properties
         of a Rect object. -->
    <Path Stroke="Black" StrokeThickness="1" Fill="LemonChiffon">
      <Path.Data>

        <!-- This RectangleGeometry specifies a rectangle that is 100 pixels high and
             150 wide. The left side of the rectangle is 10 pixels from the left of the 
             Canvas and the top side of the rectangle is 100 pixels from the top of the Canvas.  
             Note: An abbreviated syntax for creating an equivalent rectangle is:
             <RectangleGeometry Rect="10,100,150,100" /> -->
        <RectangleGeometry>
          <RectangleGeometry.Rect>
            <Rect X="10" Y="100" Width="150" Height="100" />
          </RectangleGeometry.Rect>
        </RectangleGeometry>
      </Path.Data>
    </Path>

    <!-- This rectangle demonstrates using the Size and Location properties of a Rect object. -->
    <Path Stroke="Black" StrokeThickness="1" Fill="LemonChiffon">
      <Path.Data>

        <!-- This RectangleGeometry uses the Size property to specify a height of 50 and width
             of 200. The Location property uses a Point value to determine the location of the
             top-left corner of the rectangle. /> -->
        <RectangleGeometry>
          <RectangleGeometry.Rect>
            <Rect Size="50,200" Location="300,100" />
          </RectangleGeometry.Rect>
        </RectangleGeometry>
      </Path.Data>
    </Path>
  </Canvas>
</Page>

Nell'esempio seguente viene illustrato come utilizzare il codice per creare un rettangolo e aggiungerlo alla pagina.The following example shows how to use code to create a rectangle and add it to the page. Nell'esempio viene inoltre illustrato come trovare le informazioni sulle dimensioni e le coordinate relative al nuovo rettangolo ed eseguire il rendering TextBox delle informazioni in un oggetto sotto il rettangolo.The example also illustrates how to find size and coordinate information about the new rectangle and render the information in a TextBox below the rectangle.

// Create a rectangle and add it to the page. Also,
// find size and coordinate information about this
// new rectangle and render information in a TextBox 
// below the rectangle.
private StackPanel createRectExample1()
{
    // Initialize new rectangle.
    Rect myRectangle = new Rect();

    // The Location property specifies the coordinates of the upper left-hand 
    // corner of the rectangle. Set the Location property to an X coordinate of 10 and a
    // Y coordinate of 5. 
    myRectangle.Location = new Point(10, 5);

    // Set the Size property of the rectangle with a width of 200
    // and a height of 50.
    myRectangle.Size = new Size(200, 50);

    RectangleGeometry myRectangleGeometry = new RectangleGeometry();
    myRectangleGeometry.Rect = myRectangle;

    // This path is defined by the rectangle.
    Path myPath = new Path();
    myPath.Fill = Brushes.LemonChiffon;
    myPath.Stroke = Brushes.Black;
    myPath.StrokeThickness = 1;
    myPath.Data = myRectangleGeometry;

    //////////// Create string of rectangle property information /////////////
    // This string will contain all the size and coordinate property
    // information about the rectangle.
    /////////////////////////////////////////////////////////////////////////
    string rectInfo = "Rectangle Property Information: ";

    // Bottom property gets the y-axis value of the bottom of the rectangle. 
    // For this rectangle the value is 55.
    rectInfo = rectInfo + "Bottom: " + myRectangle.Bottom;

    // BottomLeft property gets the coordinates of the bottom left corner of the rectangle. 
    // For this rectangle the value is 10,55.
    rectInfo = rectInfo + "| BottomLeft: " + myRectangle.BottomLeft;

    // BottomRight property gets the coordinates of the bottom right corner of the rectangle. 
    // For this rectangle the value is 210,55.
    rectInfo = rectInfo + "| BottomRight: " + myRectangle.BottomRight;

    // Height property gets or sets the height of the rectangle. 
    // For this rectangle the value is 50.
    rectInfo = rectInfo + "| Height: " + myRectangle.Height;

    // Width property gets or sets the width of the rectangle. 
    // For this rectangle the value is 200.
    rectInfo = rectInfo + "| Width: " + myRectangle.Width;

    // Left property gets the x-axis position of the left side of the rectangle which is 
    // equivalent to getting the rectangle's X property. 
    // For this rectangle the value is 10.
    rectInfo = rectInfo + "| Left: " + myRectangle.Left;

    // Location property gets or sets the position of the rectangle's top-left corner.
    // For this rectangle the value is 10,5.
    rectInfo = rectInfo + "| Location: " + myRectangle.Location;

    // Right property gets the x-axis value of the right side of the rectangle. 
    // For this rectangle the value is 210.
    rectInfo = rectInfo + "| Right: " + myRectangle.Right;

    // Size property gets or sets the width and height of the rectangle.  
    // For this rectangle the value is 200,50.
    rectInfo = rectInfo + "| Size: " + myRectangle.Size;

    // Top property gets the y-axis position of the top of the rectangle which is 
    // equivalent to getting the rectangle's Y property.
    // For this rectangle the value is 5.
    rectInfo = rectInfo + "| Top: " + myRectangle.Top;

    // TopLeft property gets the position of the top-left corner of the rectangle, which 
    // is equivalent to (X, Y).   
    // For this rectangle the value is 10,5.
    rectInfo = rectInfo + "| TopLeft: " + myRectangle.TopLeft;

    // TopRight property gets the position of the top-left corner of the rectangle, which 
    // is equivalent to (X + Width, Y).   
    // For this rectangle the value is 210,5.
    rectInfo = rectInfo + "| TopRight: " + myRectangle.TopRight;

    // X property gets or sets the location of the rectangle's left side.  
    // For this rectangle the value is 10.
    rectInfo = rectInfo + "| X: " + myRectangle.X;

    // Y property gets or sets the location of the rectangle's top side.  
    // For this rectangle the value is 5.
    rectInfo = rectInfo + "| Y: " + myRectangle.Y;

    //////// End of creating string containing rectangle property information ////////

    // This StackPanel will contain the rectangle and TextBlock.
    StackPanel parentPanel = new StackPanel();

    // Add the rectangle path to the StackPanel. This will display the rectangle.
    parentPanel.Children.Add(myPath);

    // Add a TextBlock to display the rectangle's size and coordinate information.
    TextBlock myTextBlock = new TextBlock();
    myTextBlock.Text = rectInfo;
    parentPanel.Children.Add(myTextBlock);

    // Return the parent container to be displayed to the screen.
    return parentPanel;
}

Commenti

Uso della sintassi XAML per gli attributiXAML Attribute Usage

<object property="x,y,width,height"/>  

Valori XAMLXAML Values

xx
System.Double

Posizione della coordinata x del lato sinistro del rettangolo.The x-coordinate location of the left side of the rectangle.

yy
System.Double

Posizione della coordinata y del lato superiore del rettangolo.The y-coordinate location of the top side of the rectangle.

widthwidth
System.Double

Valore non negativo che rappresenta l'oggetto Width del rettangolo.A non-negative value that represents the Width of the rectangle.

altezzaheight
System.Double

Valore non negativo che rappresenta l'oggetto Height del rettangolo.A non-negative value that represents the Height of the rectangle.

Costruttori

Rect(Size) Rect(Size) Rect(Size) Rect(Size)

Inizializza una nuova istanza della struttura Rect che è della dimensione specificata ed è individuata a (0,0).Initializes a new instance of the Rect structure that is of the specified size and is located at (0,0).

Rect(Point, Point) Rect(Point, Point) Rect(Point, Point) Rect(Point, Point)

Inizializza una nuova istanza della struttura Rect che è abbastanza grande per contenere i due punti specificati.Initializes a new instance of the Rect structure that is exactly large enough to contain the two specified points.

Rect(Point, Size) Rect(Point, Size) Rect(Point, Size) Rect(Point, Size)

Inizializza una nuova istanza della struttura Rect che possiede il percorso specificato dell'angolo superiore sinistro e la larghezza e l’altezza specificate.Initializes a new instance of the Rect structure that has the specified top-left corner location and the specified width and height.

Rect(Point, Vector) Rect(Point, Vector) Rect(Point, Vector) Rect(Point, Vector)

Inizializza una nuova istanza della struttura Rect che è abbastanza grande per contenere il punto specificato e la somma del punto specificato e del vettore specificato.Initializes a new instance of the Rect structure that is exactly large enough to contain the specified point and the sum of the specified point and the specified vector.

Rect(Double, Double, Double, Double) Rect(Double, Double, Double, Double) Rect(Double, Double, Double, Double) Rect(Double, Double, Double, Double)

Inizializza una nuova istanza della struttura Rect che ha le coordinate x e y, la larghezza e l’altezza specificate.Initializes a new instance of the Rect structure that has the specified x-coordinate, y-coordinate, width, and height.

Proprietà

Bottom Bottom Bottom Bottom

Ottiene il valore dell'asse y del lato inferiore del rettangolo.Gets the y-axis value of the bottom of the rectangle.

BottomLeft BottomLeft BottomLeft BottomLeft

Ottiene la posizione dell'angolo sinistro inferiore del rettangoloGets the position of the bottom-left corner of the rectangle

BottomRight BottomRight BottomRight BottomRight

Ottiene la posizione dell'angolo destro inferiore del rettangolo.Gets the position of the bottom-right corner of the rectangle.

Empty Empty Empty Empty

Ottiene un valore speciale che rappresenta un rettangolo senza posizione o area.Gets a special value that represents a rectangle with no position or area.

Height Height Height Height

Ottiene o imposta l'altezza del rettangolo.Gets or sets the height of the rectangle.

IsEmpty IsEmpty IsEmpty IsEmpty

Ottiene un valore che indica se il rettangolo è Empty.Gets a value that indicates whether the rectangle is the Empty rectangle.

Left Left Left Left

Ottiene il valore dell'asse x del lato sinistro del rettangolo.Gets the x-axis value of the left side of the rectangle.

Location Location Location Location

Ottiene o imposta la posizione dell'angolo superiore sinistro del rettangolo.Gets or sets the position of the top-left corner of the rectangle.

Right Right Right Right

Ottiene il valore dell'asse x del lato destro del rettangolo.Gets the x-axis value of the right side of the rectangle.

Size Size Size Size

Ottiene o imposta la larghezza e l'altezza del rettangolo.Gets or sets the width and height of the rectangle.

Top Top Top Top

Ottiene la posizione dell'asse y del lato superiore del rettangolo.Gets the y-axis position of the top of the rectangle.

TopLeft TopLeft TopLeft TopLeft

Ottiene la posizione dell'angolo superiore sinistro del rettangolo.Gets the position of the top-left corner of the rectangle.

TopRight TopRight TopRight TopRight

Ottiene la posizione dell'angolo superiore destro del rettangolo.Gets the position of the top-right corner of the rectangle.

Width Width Width Width

Ottiene o imposta la larghezza del rettangolo.Gets or sets the width of the rectangle.

X X X X

Ottiene o imposta il valore dell'asse x del lato sinistro del rettangolo.Gets or sets the x-axis value of the left side of the rectangle.

Y Y Y Y

Ottiene o imposta il valore dell'asse y del lato superiore del rettangolo.Gets or sets the y-axis value of the top side of the rectangle.

Metodi

Contains(Point) Contains(Point) Contains(Point) Contains(Point)

Indica se il rettangolo contiene il punto specificato.Indicates whether the rectangle contains the specified point.

Contains(Rect) Contains(Rect) Contains(Rect) Contains(Rect)

Indica se il rettangolo contiene il rettangolo specificato.Indicates whether the rectangle contains the specified rectangle.

Contains(Double, Double) Contains(Double, Double) Contains(Double, Double) Contains(Double, Double)

Indica se il rettangolo contiene le coordinate specificate x e y.Indicates whether the rectangle contains the specified x-coordinate and y-coordinate.

Equals(Rect, Rect) Equals(Rect, Rect) Equals(Rect, Rect) Equals(Rect, Rect)

Indica se i rettangoli specificati sono uguali.Indicates whether the specified rectangles are equal.

Equals(Object) Equals(Object) Equals(Object) Equals(Object)

Indica se l’oggetto specificato è uguale al rettangolo corrente.Indicates whether the specified object is equal to the current rectangle.

Equals(Rect) Equals(Rect) Equals(Rect) Equals(Rect)

Indica se il rettangolo specificato è uguale al rettangolo corrente.Indicates whether the specified rectangle is equal to the current rectangle.

GetHashCode() GetHashCode() GetHashCode() GetHashCode()

Crea un codice hash per il rettangolo.Creates a hash code for the rectangle.

Inflate(Size) Inflate(Size) Inflate(Size) Inflate(Size)

Espande il rettangolo utilizzando Sizespecificato, in tutte le direzioni.Expands the rectangle by using the specified Size, in all directions.

Inflate(Double, Double) Inflate(Double, Double) Inflate(Double, Double) Inflate(Double, Double)

Espande o riduce il rettangolo utilizzando i valori della larghezza e dell’altezza specificati, in tutte le direzioni.Expands or shrinks the rectangle by using the specified width and height amounts, in all directions.

Inflate(Rect, Size) Inflate(Rect, Size) Inflate(Rect, Size) Inflate(Rect, Size)

Restituisce il rettangolo risultante dell'espansione del rettangolo specificato da Sizespecificato, in tutte le direzioni.Returns the rectangle that results from expanding the specified rectangle by the specified Size, in all directions.

Inflate(Rect, Double, Double) Inflate(Rect, Double, Double) Inflate(Rect, Double, Double) Inflate(Rect, Double, Double)

Crea un rettangolo risultante dell'espansione o dalla riduzione del rettangolo specificato rispetto al valore della larghezza e dell’altezza specificato, in tutte le direzioni.Creates a rectangle that results from expanding or shrinking the specified rectangle by the specified width and height amounts, in all directions.

Intersect(Rect) Intersect(Rect) Intersect(Rect) Intersect(Rect)

Trova l'intersezione del rettangolo corrente e del rettangolo specificato e archivia il risultato come rettangolo corrente.Finds the intersection of the current rectangle and the specified rectangle, and stores the result as the current rectangle.

Intersect(Rect, Rect) Intersect(Rect, Rect) Intersect(Rect, Rect) Intersect(Rect, Rect)

Restituisce l'intersezione dei rettangoli specificati.Returns the intersection of the specified rectangles.

IntersectsWith(Rect) IntersectsWith(Rect) IntersectsWith(Rect) IntersectsWith(Rect)

Indica se il rettangolo specificato si interseca con il rettangolo corrente.Indicates whether the specified rectangle intersects with the current rectangle.

Offset(Vector) Offset(Vector) Offset(Vector) Offset(Vector)

Sposta il rettangolo dal vettore specificato.Moves the rectangle by the specified vector.

Offset(Double, Double) Offset(Double, Double) Offset(Double, Double) Offset(Double, Double)

Sposta il rettangolo dei valori orizzontale e verticale specificati.Moves the rectangle by the specified horizontal and vertical amounts.

Offset(Rect, Vector) Offset(Rect, Vector) Offset(Rect, Vector) Offset(Rect, Vector)

Restituisce un rettangolo offset dal rettangolo specificato utilizzando il vettore specificato.Returns a rectangle that is offset from the specified rectangle by using the specified vector.

Offset(Rect, Double, Double) Offset(Rect, Double, Double) Offset(Rect, Double, Double) Offset(Rect, Double, Double)

Restituisce un rettangolo offset dal rettangolo specificato utilizzando i valori orizzontali e verticali specificati.Returns a rectangle that is offset from the specified rectangle by using the specified horizontal and vertical amounts.

Parse(String) Parse(String) Parse(String) Parse(String)

Crea un nuovo rettangolo dalla rappresentazione della stringa specificata.Creates a new rectangle from the specified string representation.

Scale(Double, Double) Scale(Double, Double) Scale(Double, Double) Scale(Double, Double)

Moltiplica la dimensione del rettangolo corrente per i valori x e y specificati.Multiplies the size of the current rectangle by the specified x and y values.

ToString() ToString() ToString() ToString()

Restituisce una rappresentazione in forma di stringa del rettangolo corrente.Returns a string representation of the rectangle.

ToString(IFormatProvider) ToString(IFormatProvider) ToString(IFormatProvider) ToString(IFormatProvider)

Restituisce una rappresentazione in forma di stringa del rettangolo utilizzando il provider del formato specificato.Returns a string representation of the rectangle by using the specified format provider.

Transform(Matrix) Transform(Matrix) Transform(Matrix) Transform(Matrix)

Trasforma il rettangolo applicando la matrice specificata.Transforms the rectangle by applying the specified matrix.

Transform(Rect, Matrix) Transform(Rect, Matrix) Transform(Rect, Matrix) Transform(Rect, Matrix)

Restituisce il rettangolo risultante dall'applicazione della matrice specificata al rettangolo specificato.Returns the rectangle that results from applying the specified matrix to the specified rectangle.

Union(Point) Union(Point) Union(Point) Union(Point)

Espande il rettangolo corrente abbastanza da poter contenere il punto specificato.Expands the current rectangle exactly enough to contain the specified point.

Union(Rect) Union(Rect) Union(Rect) Union(Rect)

Espande il rettangolo corrente abbastanza per contenere il rettangolo specificato.Expands the current rectangle exactly enough to contain the specified rectangle.

Union(Rect, Point) Union(Rect, Point) Union(Rect, Point) Union(Rect, Point)

Crea un rettangolo grande abbastanza da poter includere il rettangolo specificato ed il punto specificato.Creates a rectangle that is exactly large enough to include the specified rectangle and the specified point.

Union(Rect, Rect) Union(Rect, Rect) Union(Rect, Rect) Union(Rect, Rect)

Crea un rettangolo grande abbastanza da poter contenere i due rettangoli specificati.Creates a rectangle that is exactly large enough to contain the two specified rectangles.

Operatori

Equality(Rect, Rect) Equality(Rect, Rect) Equality(Rect, Rect) Equality(Rect, Rect)

Confronta due rettangoli per verificarne l’esatta uguaglianza.Compares two rectangles for exact equality.

Inequality(Rect, Rect) Inequality(Rect, Rect) Inequality(Rect, Rect) Inequality(Rect, Rect)

Confronta due rettangoli per verificarne la disuguaglianza.Compares two rectangles for inequality.

Implementazioni dell'interfaccia esplicita

IFormattable.ToString(String, IFormatProvider) IFormattable.ToString(String, IFormatProvider) IFormattable.ToString(String, IFormatProvider) IFormattable.ToString(String, IFormatProvider)

Formatta il valore dell'istanza corrente utilizzando il formato specificato.Formats the value of the current instance using the specified format.

Si applica a