[C#/WPF] DoubleAnimation 클래스 : 동심원 애니메이션 만들기

■ DoubleAnimation 클래스를 사용해 동심원 애니메이션을 만드는 방법을 보여준다.

▶ MainWindow.xaml


<Window x:Class="TestProject.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Width="800"
    Height="600"
    Title="DoubleAnimation 클래스 : 동심원 애니메이션 만들기"
    FontFamily="나눔고딕코딩"
    FontSize="16">
    <Canvas Name="canvas" Background="#ffe0e0e0" />
</Window>

<Window x:Class="TestProject.MainWindow"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

Width="800"

Height="600"

Title="DoubleAnimation 클래스 : 동심원 애니메이션 만들기"

FontFamily="나눔고딕코딩"

FontSize="16">

</Window>

▶ MainWindow.xaml.cs


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

namespace TestProject
{
    /// <summary>
    /// 메인 윈도우
    /// </summary>
    public partial class MainWindow : Window
    {
        //////////////////////////////////////////////////////////////////////////////////////////////////// Field
        ////////////////////////////////////////////////////////////////////////////////////////// Private

        #region Field

        /// <summary>
        /// 난수기
        /// </summary>
        private Random random;

        #endregion

        //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor
        ////////////////////////////////////////////////////////////////////////////////////////// Public

        #region 생성자 - MainWindow()

        /// <summary>
        /// 생성자
        /// </summary>
        public MainWindow()
        {
            InitializeComponent();

            this.random = new Random(DateTime.Now.Millisecond);

            Loaded += Window_Loaded;
        }

        #endregion

        //////////////////////////////////////////////////////////////////////////////////////////////////// Method
        ////////////////////////////////////////////////////////////////////////////////////////// Private
        //////////////////////////////////////////////////////////////////////////////// Event

        #region 윈도우 로드시 처리하기 - Window_Loaded(sender, e)

        /// <summary>
        /// 윈도우 로드시 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void Window_Loaded(object sender, RoutedEventArgs e)
        {
            CreateCircle();
        }

        #endregion

        //////////////////////////////////////////////////////////////////////////////// Function

        #region 원 생성하기 - CreateCircle()

        /// <summary>
        /// 원 생성하기
        /// </summary>
        private void CreateCircle()
        {
            double centerX = this.canvas.ActualWidth  / 2.0;
            double centerY = this.canvas.ActualHeight / 2.0;

            Color[] colorArray = new Color[] { Colors.White, Colors.Green, Colors.Green, Colors.Lime };

            for(int i = 0; i < 24; i++)
            {
                Ellipse ellipse = new Ellipse();

                byte alpha      = (byte)this.random.Next(96,192);
                int  colorIndex = this.random.Next(4);

                ellipse.Stroke = new SolidColorBrush
                (
                    Color.FromArgb
                    (
                        alpha,
                        colorArray[colorIndex].R,
                        colorArray[colorIndex].G,
                        colorArray[colorIndex].B
                    )
                );

                ellipse.StrokeThickness = this.random.Next(1, 4);
                ellipse.Width           = 0.0;
                ellipse.Height          = 0.0;

                double offsetX = 16 - this.random.Next(32);
                double offsetY = 16 - this.random.Next(32);

                this.canvas.Children.Add(ellipse);

                ellipse.SetValue(Canvas.LeftProperty, centerX + offsetX);
                ellipse.SetValue(Canvas.TopProperty , centerY + offsetY);

                double duration = 6.0 + 10.0 * this.random.NextDouble();
                double delay    =       16.0 * this.random.NextDouble();

                TranslateTransform transform = new TranslateTransform();

                DoubleAnimation offsetXAnimation = new DoubleAnimation
                (
                    0.0,
                    -256.0,
                    new Duration(TimeSpan.FromSeconds(duration))
                );

                offsetXAnimation.RepeatBehavior = RepeatBehavior.Forever;
                offsetXAnimation.BeginTime      = TimeSpan.FromSeconds(delay);

                transform.BeginAnimation(TranslateTransform.XProperty, offsetXAnimation);
                transform.BeginAnimation(TranslateTransform.YProperty, offsetXAnimation);

                ellipse.RenderTransform = transform;

                DoubleAnimation sizeAnimation = new DoubleAnimation
                (
                    0.0,
                    512.0,
                    new Duration(TimeSpan.FromSeconds(duration))
                );

                sizeAnimation.RepeatBehavior = RepeatBehavior.Forever;
                sizeAnimation.BeginTime      = TimeSpan.FromSeconds(delay);

                ellipse.BeginAnimation(Ellipse.WidthProperty , sizeAnimation);
                ellipse.BeginAnimation(Ellipse.HeightProperty, sizeAnimation);

                DoubleAnimation opacityAnimation = new DoubleAnimation
                (
                    duration - 1.0,
                    0.0,
                    new Duration(TimeSpan.FromSeconds(duration))
                );

                opacityAnimation.BeginTime      = TimeSpan.FromSeconds(delay);
                opacityAnimation.RepeatBehavior = RepeatBehavior.Forever;

                ellipse.BeginAnimation(Ellipse.OpacityProperty, opacityAnimation);
            }
        }

        #endregion
    }
}

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using System;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Media;

using System.Windows.Media.Animation;

using System.Windows.Shapes;

namespace TestProject

{

/// <summary>

/// 메인 윈도우

/// </summary>

public partial class MainWindow : Window

{

//////////////////////////////////////////////////////////////////////////////////////////////////// Field

////////////////////////////////////////////////////////////////////////////////////////// Private

#region Field

/// <summary>

/// 난수기

/// </summary>

private Random random;

#endregion

//////////////////////////////////////////////////////////////////////////////////////////////////// Constructor

////////////////////////////////////////////////////////////////////////////////////////// Public

#region 생성자 - MainWindow()

/// <summary>

/// 생성자

/// </summary>

public MainWindow()

{

InitializeComponent();

this.random = new Random(DateTime.Now.Millisecond);

Loaded += Window_Loaded;

}

#endregion

//////////////////////////////////////////////////////////////////////////////////////////////////// Method

////////////////////////////////////////////////////////////////////////////////////////// Private

//////////////////////////////////////////////////////////////////////////////// Event

#region 윈도우 로드시 처리하기 - Window_Loaded(sender, e)

/// <summary>

/// 윈도우 로드시 처리하기

/// </summary>

/// <param name="sender">이벤트 발생자</param>

/// <param name="e">이벤트 인자</param>

private void Window_Loaded(object sender, RoutedEventArgs e)

{

CreateCircle();

}

#endregion

//////////////////////////////////////////////////////////////////////////////// Function

#region 원 생성하기 - CreateCircle()

/// <summary>

/// 원 생성하기

/// </summary>

private void CreateCircle()

{

double centerX = this.canvas.ActualWidth / 2.0;

double centerY = this.canvas.ActualHeight / 2.0;

Color[] colorArray = new Color[] { Colors.White, Colors.Green, Colors.Green, Colors.Lime };

for(int i = 0; i < 24; i++)

{

Ellipse ellipse = new Ellipse();

byte alpha = (byte)this.random.Next(96,192);

int colorIndex = this.random.Next(4);

ellipse.Stroke = new SolidColorBrush

(

Color.FromArgb

(

alpha,

colorArray[colorIndex].R,

colorArray[colorIndex].G,

colorArray[colorIndex].B

)

);

ellipse.StrokeThickness = this.random.Next(1, 4);

ellipse.Width = 0.0;

ellipse.Height = 0.0;

double offsetX = 16 - this.random.Next(32);

double offsetY = 16 - this.random.Next(32);

this.canvas.Children.Add(ellipse);

ellipse.SetValue(Canvas.LeftProperty, centerX + offsetX);

ellipse.SetValue(Canvas.TopProperty , centerY + offsetY);

double duration = 6.0 + 10.0 * this.random.NextDouble();

double delay = 16.0 * this.random.NextDouble();

TranslateTransform transform = new TranslateTransform();

DoubleAnimation offsetXAnimation = new DoubleAnimation

(

0.0,

-256.0,

new Duration(TimeSpan.FromSeconds(duration))

);

offsetXAnimation.RepeatBehavior = RepeatBehavior.Forever;

offsetXAnimation.BeginTime = TimeSpan.FromSeconds(delay);

transform.BeginAnimation(TranslateTransform.XProperty, offsetXAnimation);

transform.BeginAnimation(TranslateTransform.YProperty, offsetXAnimation);

ellipse.RenderTransform = transform;

DoubleAnimation sizeAnimation = new DoubleAnimation

(

0.0,

512.0,

new Duration(TimeSpan.FromSeconds(duration))

);

sizeAnimation.RepeatBehavior = RepeatBehavior.Forever;

sizeAnimation.BeginTime = TimeSpan.FromSeconds(delay);

ellipse.BeginAnimation(Ellipse.WidthProperty , sizeAnimation);

ellipse.BeginAnimation(Ellipse.HeightProperty, sizeAnimation);

DoubleAnimation opacityAnimation = new DoubleAnimation

(

duration - 1.0,

0.0,

new Duration(TimeSpan.FromSeconds(duration))

);

opacityAnimation.BeginTime = TimeSpan.FromSeconds(delay);

opacityAnimation.RepeatBehavior = RepeatBehavior.Forever;

ellipse.BeginAnimation(Ellipse.OpacityProperty, opacityAnimation);

}

#endregion

}

TestProject.zip