Nasıl yapılır: ImageDrawing Kullanarak Görüntü Çizme
Bu örnekte, görüntü çizmek için nasıl ImageDrawing bir kullanabileceğiniz açıktır. , ImageDrawing veya ile bir ImageSourceDrawingBrushDrawingImage görüntülemeyi Visual sağlar. Bir görüntü çizmek için bir oluşturun ve ImageDrawing ve özelliklerini ImageDrawing.ImageSourceImageDrawing.Rect ayarlayın. ImageDrawing.ImageSourceözelliği çizilen görüntüyü, özelliği ise her ImageDrawing.Rect görüntünün konumunu ve boyutunu belirtir.
Örnek
Aşağıdaki örnek, dört nesne kullanarak bileşik çizim ImageDrawing oluşturur. Bu örnek aşağıdaki görüntüyü üretir:

Dört ImageDrawing nesnesi
using System;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using System.Windows.Media.Imaging;
namespace SDKSample
{
public class ImageDrawingExample : Page
{
public ImageDrawingExample()
{
// Create a DrawingGroup to combine the ImageDrawing objects.
DrawingGroup imageDrawings = new DrawingGroup();
// Create a 100 by 100 image with an upper-left point of (75,75).
ImageDrawing bigKiwi = new ImageDrawing();
bigKiwi.Rect = new Rect(75, 75, 100, 100);
bigKiwi.ImageSource = new BitmapImage(
new Uri(@"sampleImages\kiwi.png", UriKind.Relative));
imageDrawings.Children.Add(bigKiwi);
// Create a 25 by 25 image with an upper-left point of (0,150).
ImageDrawing smallKiwi1 = new ImageDrawing();
smallKiwi1.Rect = new Rect(0, 150, 25, 25);
smallKiwi1.ImageSource = new BitmapImage(new Uri(@"sampleImages\kiwi.png", UriKind.Relative));
imageDrawings.Children.Add(smallKiwi1);
// Create a 25 by 25 image with an upper-left point of (150,0).
ImageDrawing smallKiwi2 = new ImageDrawing();
smallKiwi2.Rect = new Rect(150, 0, 25, 25);
smallKiwi2.ImageSource = new BitmapImage(new Uri(@"sampleImages\kiwi.png", UriKind.Relative));
imageDrawings.Children.Add(smallKiwi2);
// Create a 75 by 75 image with an upper-left point of (0,0).
ImageDrawing wholeKiwi = new ImageDrawing();
wholeKiwi.Rect = new Rect(0, 0, 75, 75);
wholeKiwi.ImageSource = new BitmapImage(new Uri(@"sampleImages\wholekiwi.png", UriKind.Relative));
imageDrawings.Children.Add(wholeKiwi);
//
// Use a DrawingImage and an Image control to
// display the drawings.
//
DrawingImage drawingImageSource = new DrawingImage(imageDrawings);
// Freeze the DrawingImage for performance benefits.
drawingImageSource.Freeze();
Image imageControl = new Image();
imageControl.Stretch = Stretch.None;
imageControl.Source = drawingImageSource;
// Create a border to contain the Image control.
Border imageBorder = new Border();
imageBorder.BorderBrush = Brushes.Gray;
imageBorder.BorderThickness = new Thickness(1);
imageBorder.HorizontalAlignment = HorizontalAlignment.Left;
imageBorder.VerticalAlignment = VerticalAlignment.Top;
imageBorder.Margin = new Thickness(20);
imageBorder.Child = imageControl;
this.Background = Brushes.White;
this.Margin = new Thickness(20);
this.Content = imageBorder;
}
}
}
<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:PresentationOptions="http://schemas.microsoft.com/winfx/2006/xaml/presentation/options"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="PresentationOptions"
Background="White" Margin="20">
<Border BorderBrush="Gray" BorderThickness="1"
HorizontalAlignment="Left" VerticalAlignment="Top"
Margin="20">
<Image Stretch="None">
<Image.Source>
<DrawingImage PresentationOptions:Freeze="True">
<DrawingImage.Drawing>
<DrawingGroup>
<!-- The Rect property specifies that the image only fill a 100 by 100
rectangular area. -->
<ImageDrawing Rect="75,75,100,100" ImageSource="sampleImages\kiwi.png"/>
<!-- This image is set to fill a 25 by 25 rectangular area. -->
<ImageDrawing Rect="0,150,25,25" ImageSource="sampleImages\kiwi.png"/>
<!-- This image is set to fill a 25 by 25 rectangular area. -->
<ImageDrawing Rect="150,0,25,25" ImageSource="sampleImages\kiwi.png"/>
<!-- This image is set to fill a 75 by 75 rectangular area. -->
<ImageDrawing Rect="0,0,75,75" ImageSource="sampleImages\wholekiwi.png"/>
</DrawingGroup>
</DrawingImage.Drawing>
</DrawingImage>
</Image.Source>
</Image>
</Border>
</Page>
kullanarak olmadan görüntü görüntülemenin basit bir yolunu gösteren bir örnek için ImageDrawingImageDrawing