<Window x:Class="Heart.MainWindow"

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

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

        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"

        xmlns:local="clr-namespace:Heart"

        mc:Ignorable="d"

        Title="MainWindow" Height="" Width="">

    <Grid>

        <Grid.RowDefinitions>

            <RowDefinition Height="66*"/>

            <RowDefinition Height="74*"/>

            <RowDefinition Height="77*"/>

            <RowDefinition Height="98*"/>

            <RowDefinition Height="69*"/>

            <RowDefinition Height="62*"/>

            <RowDefinition Height="72*"/>

            <RowDefinition Height="52*"/>

        </Grid.RowDefinitions>

        <Grid.ColumnDefinitions>

            <ColumnDefinition Width="134*"/>

            <ColumnDefinition Width="525*"/>

            <ColumnDefinition Width="134*"/>

        </Grid.ColumnDefinitions>

        <Button Content="画心" Grid.Column="" Grid.Row="" Click="ButtonStart_Click" Width=""></Button>

        <Canvas x:Name="canvas_Shape" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Width="" Margin="12,0" Grid.Column="" Grid.RowSpan=""/>

    </Grid>

</Window>

using System;

using System.Collections.Generic;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Media.Imaging;

using System.Drawing;

using System.Drawing.Drawing2D;

using System.Runtime.InteropServices;

using System.Threading;

namespace Heart

{

    /// <summary>

    /// MainWindow.xaml 的交互逻辑

    /// </summary>

    public partial class MainWindow : Window

    {

        public MainWindow()

        {

            InitializeComponent();

            imageList = new List<System.Windows.Controls.Image>();

            imageList1 = new List<System.Windows.Controls.Image>();

            CreateHeartLine(true);

            CreateHeartLine(false);

            m_iImageCount = imageList.Count;

        }

        private int maxStep = ;

        private double radius;

        private double centerPt;

        private Bitmap m_Snow;

        private Bitmap m_Snow1;

        private int m_iImageCount = ;

        private List<System.Windows.Controls.Image> imageList = null;

        private List<System.Windows.Controls.Image> imageList1 = null;

        [DllImport("gdi32")]

        static extern int DeleteObject(IntPtr o);

        private BitmapSource GetBitmapSource(Bitmap bitmap)

        {

            IntPtr inptr = bitmap.GetHbitmap();

            BitmapSource bitmapSource = System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(

                inptr, IntPtr.Zero, Int32Rect.Empty, BitmapSizeOptions.FromEmptyOptions());

            DeleteObject(inptr);

            return bitmapSource;

        }

        private void SetImageSoure(System.Windows.Controls.Image img , Bitmap mSnow)

        {

            BitmapSource bitmapSource = GetBitmapSource(mSnow);

            img.Source = bitmapSource;

        }

        private void CreateHeartLine(bool bShow)

        {

            centerPt = canvas_Shape.Width / ;

            radius = canvas_Shape.Width / ;

            for (int i = ; i < maxStep; i++)

            {

                System.Windows.Controls.Image img = new System.Windows.Controls.Image();

                BitmapSource bitmapSource;

                if (bShow)

                {

                    bitmapSource  = GetBitmapSource(Snow);

                    img.Source = bitmapSource;

                    img.Visibility = Visibility.Hidden;

                    imageList.Add(img);

                }

                else

                {

                    bitmapSource = GetBitmapSource(Snow1);

                    img.Source = bitmapSource;

                    imageList1.Add(img);

                }

                double angle =  * Math.PI / maxStep * i;

                double r =  * radius * ( - Math.Sin(angle));

                //桃形心

                double x = centerPt -  * (Math.Sin(angle) * Math.Sin(angle) * Math.Sin(angle)) * ;//

                double y = centerPt - ( * Math.Cos(angle) -  * Math.Cos( * angle) -  * Math.Cos( * angle) - Math.Cos( * angle)) * ;//

                Canvas.SetLeft(img, x);

                Canvas.SetTop(img, y);

                canvas_Shape.Children.Add(img);

            }

        }

        private Bitmap Snow

        {

            get

            {

                if (m_Snow == null)

                {

                    m_Snow = new Bitmap(, );

                    using (Graphics g = Graphics.FromImage(m_Snow))

                    {

                        g.SmoothingMode = SmoothingMode.AntiAlias;

                        g.Clear(System.Drawing.Color.Transparent);

                        g.TranslateTransform(, , MatrixOrder.Append);

                        System.Drawing.Color black = System.Drawing.Color.FromArgb(, , );

                        System.Drawing.Color white = System.Drawing.Color.FromArgb(, , );

                        DrawSnow(g, new SolidBrush(black), new System.Drawing.Pen(black, 3f));

                        DrawSnow(g, new SolidBrush(white), new System.Drawing.Pen(white, 2f));

                        g.Save();

                    }

                }

                return m_Snow;

            }

        }

        private Bitmap Snow1

        {

            get

            {

                if (m_Snow1 == null)

                {

                    m_Snow1 = new Bitmap(, );

                    using (Graphics g = Graphics.FromImage(m_Snow1))

                    {

                        g.SmoothingMode = SmoothingMode.AntiAlias;

                        g.Clear(System.Drawing.Color.Transparent);

                        g.TranslateTransform(, , MatrixOrder.Append);

                        System.Drawing.Color black = System.Drawing.Color.FromArgb(, , );

                        System.Drawing.Color white = System.Drawing.Color.FromArgb(, , );

                        DrawSnow(g, new SolidBrush(black), new System.Drawing.Pen(black, 3f));

                        DrawSnow(g, new SolidBrush(white), new System.Drawing.Pen(white, 2f));

                        g.Save();

                    }

                }

                return m_Snow1;

            }

        }

        private static void DrawSnow(Graphics g, System.Drawing.Brush b, System.Drawing.Pen p)

        {

            const int a = ;

            const int a2 = a + ;

            const int r = ;

            g.DrawLine(p, -a, -a, +a, +a);

            g.DrawLine(p, -a, +a, +a, -a);

            g.DrawLine(p, -a2, , +a2, );

            g.DrawLine(p, , -a2, , +a2);

            g.FillEllipse(b, -r, -r, r * , r * );

        }

        private void ButtonStart_Click(object sender, RoutedEventArgs e)

        {

            Thread thread = new Thread(ShowImageList);

            thread.SetApartmentState(ApartmentState.STA);

            thread.IsBackground = true;

            thread.Start();

        }

        private void ShowImageList()

        {

            while (true)

            {

                for (int i = ; i < imageList.Count; i++)

                {

                    this.Dispatcher.Invoke((Action)(() =>

                    {

                        ShowImageIndex(i);

                    }));

                    Thread.Sleep();

               }

            }

        }

        private void ShowImageIndex(int index)

        {

            if (imageList1[index].Visibility == Visibility.Visible)

            {

                imageList1[index].Visibility = Visibility.Hidden;

                imageList[index].Visibility = Visibility.Visible;

            }

            else

            {

                imageList1[index].Visibility = Visibility.Visible;

                imageList[index].Visibility = Visibility.Hidden;

            }

        }

    }

}