[C#/WINUI3/.NET8] Visual 클래스 : CenterPoint 속성을 사용해 애니메이션 중심 포인트 설정하기

■ Visual 클래스의 CenterPoint 속성을 사용해 애니메이션 중심 포인트를 설정하는 방법을 보여준다.

▶ 예제 코드 (C#)


using System;
using System.Numerics;

using Microsoft.UI.Composition;
using Microsoft.UI.Xaml.Controls;
using Microsoft.UI.Xaml.Hosting;
using Microsoft.UI.Xaml.Media.Imaging;

// ...

Image image;

// ...

BitmapImage bitmapImage = new BitmapImage(new Uri("ms-appx:///Assets/landscape.png"));

bitmapImage.DecodePixelWidth  = 800;
bitmapImage.DecodePixelHeight = 600;

image.Source = bitmapImage;

Visual imageVisual = ElementCompositionPreview.GetElementVisual(image);

Compositor compositor = imageVisual.Compositor;

Vector3 centerPointVector3 = new Vector3((float)image.Width / 2, (float)image.Height / 2, 0f);

imageVisual.Scale       = new Vector3(1, 1, 1);
imageVisual.Opacity     = 0f;
imageVisual.CenterPoint = centerPointVector3;

using System;

using System.Numerics;

using Microsoft.UI.Composition;

using Microsoft.UI.Xaml.Controls;

using Microsoft.UI.Xaml.Hosting;

using Microsoft.UI.Xaml.Media.Imaging;

// ...

Image image;

// ...

BitmapImage bitmapImage = new BitmapImage(new Uri("ms-appx:///Assets/landscape.png"));

bitmapImage.DecodePixelWidth = 800;

bitmapImage.DecodePixelHeight = 600;

image.Source = bitmapImage;

Visual imageVisual = ElementCompositionPreview.GetElementVisual(image);

Compositor compositor = imageVisual.Compositor;

Vector3 centerPointVector3 = new Vector3((float)image.Width / 2, (float)image.Height / 2, 0f);

imageVisual.Scale = new Vector3(1, 1, 1);

imageVisual.Opacity = 0f;

imageVisual.CenterPoint = centerPointVector3;