wpf做的图片左右滑动效果 问题请教

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namespace _3Dshow
{
/// <summary>
/// Interaction logic for Window1.xaml
/// </summary>

public partial class Window1 : Window
{
#region 全局函数
// Queue<double>[,] sum_queue; 队列
double[,] sum_queue = new double[5, 2];//定义双精度浮点数组sum_queue付值[5,2]
PerspectiveCamera _camera = null;//定义摄像机
bool ismousedown = false;//定义布尔变量ismousedown
// TimeSpan timspan;定义时间跨度变量分别记录起点、当前点和终点
Point startPoint, currentPoint, endPoint;

string[] fileList;//定义数组
double[,] sum_list;//定义双精度浮点sum_list
int _b = 0;//定义整型变量 _b
DispatcherTimer sub_time = new DispatcherTimer();//定义定时 变量 sub_time
DispatcherTimer sub_time1 = new DispatcherTimer();//定义定时 变量 sub_time1
private static DependencyProperty TranslatePosProperty = DependencyProperty.Register(
"TranslatePos", typeof(double), typeof(Window1), new PropertyMetadata((double)0, new PropertyChangedCallback(DragPosChanged)));
#endregion

static void DragPosChanged(DependencyObject obj, DependencyPropertyChangedEventArgs e)
{
Window1 win = obj as Window1;
win.PosChanged((double)e.NewValue);
}

public Window1()
{
InitializeComponent();
IniComponent();
}

private void IniComponent()
{
this.GetUserImages();
_camera = new PerspectiveCamera();///定义摄像机
_camera.Position = new Point3D(0, 0, 10);///世界坐标摄像机位置
_camera.LookDirection = new Vector3D(0, -0.1, -5);///摄像机在世界坐标中的拍摄方向
_camera.UpDirection = new Vector3D(0, 10, 0);//////设置获取摄像机向上方向
_camera.FieldOfView = 45;///摄像机水平视角
_view.Camera = _camera;///将3D内容映射到2D图面的摄像机
getview();///初始化图片
inittran();///初始化图片位置以及大小偏移
}

#region read picture 读取图片
private void GetUserImages()
{
int a = 5;
fileList = readFiles(System.IO.Directory.GetCurrentDirectory() + @"\image");
int b = fileList.Length;
if (b != 0)
sum_list = new double[b, a];
}

private string[] readFiles(string path)
{
return System.IO.Directory.GetFiles(path, "*.jpg");
}
#endregion

#region 初始化
/// <summary>
/// 初始化图片
/// </summary>
private void getview()
{
if (fileList.Length < 1)
return;
for (int i = 0; i < fileList.Length; i++)
{
ModelVisual3D _visual = new ModelVisual3D();//创建包含三维模型的元素 _visual
BitmapImage bmp;
ImageSource img;
MeshGeometry3D MeshGeometry3D1 = new MeshGeometry3D();//创建三维模型的基元三角形 MeshGeometry3D1
DiffuseMaterial dm = new DiffuseMaterial(); //定义变量 dm 可用于将诸如 SolidColorBrush 或 TileBrush 之类的二维画笔应用到光线漫射的三维模型
GeometryModel3D geometrymodel3d = new GeometryModel3D();//创建三D模型对象 geometrymodel3d
Model3DGroup model3dgroupmodel = new Model3DGroup();//创建三D模型集合 model3dgroupmodel
// model3dgroupmodel.Children.Add(geometrymodel3d);//将三D模型 geometrymodel3d 加载到3D集合中 model3dgroupmodel
bmp = new BitmapImage(new Uri(fileList[i]));//将图片文件路径赋给变量 bmp
img = bmp;//将bmp变量存储的图片信息赋给 img变量
dm.Brush = new ImageBrush((ImageSource)(img));//把图片信息赋给 dm变量
geometrymodel3d.Material = dm;//把变量 dm 的图片信息 作为材质 赋给 定义好的3D模型 geometrymodel3d
model3dgroupmodel.Children.Add(geometrymodel3d);//将三D模型 geometrymodel3d 加载到3D集合中 model3dgroupmodel

#region light
MeshGeometry3D1 = new MeshGeometry3D();
MeshGeometry3D1.Positions = ((Point3DCollection)new Point3DCollectionConverter().ConvertFromString("-1,1,1 -1,-1,1 1,-1,1 1,1,1"));
MeshGeometry3D1.TriangleIndices = ((Int32Collection)new Int32CollectionConverter().ConvertFromString("0,1,3 1,2,3"));
MeshGeometry3D1.TextureCoordinates = ((PointCollection)new PointCollectionConverter().ConvertFromString("0,0 0,1 1,1 1,0"));
geometrymodel3d.Geometry = MeshGeometry3D1;

AmbientLight AmbientLight1 = new AmbientLight();
AmbientLight1.Color = Colors.Gray;
model3dgroupmodel.Children.Add(AmbientLight1);

DirectionalLight DirectionalLight1 = new DirectionalLight();
DirectionalLight1.Color = Colors.Gray;
DirectionalLight1.Direction = ((Vector3D)new Vector3DConverter().ConvertFromString("-1,-3,-2"));
model3dgroupmodel.Children.Add(DirectionalLight1);

DirectionalLight1 = new DirectionalLight();
DirectionalLight1.Color = Colors.Gray;
DirectionalLight1.Direction = ((Vector3D)new Vector3DConverter().ConvertFromString("1,-2,3"));
model3dgroupmodel.Children.Add(DirectionalLight1);
#endregion

_visual.Content = model3dgroupmodel;//把3D模型集合 放到 包含三维模型元素 _visual 中

_view.Children.Add(_visual);//把包含三维模型元素的 _visual 加载到 _view 3D视口中
}
}
//c is angel
//d is scale
//b is x-translate
//a is z-translate
//double _a, _b, _c, _d;
/// <summary>
/// 初始化图片的位置位移以及大小偏转
/// </summary>
private void inittran()
{
double a, b, c, d;
for (int i = 0; i < _view.Children.Count; i++)
{
#region 调整位置
a = 0;
b = (-3+ i) * 1.5;
sum_list[i, 1] = b;
if (i == 0 || i == 6)
{
d = 0.4;
}
else if (i == 1 || i == 5)
{
d = 0.6;
}
else if (i == 2 || i == 4)
{
d = 0.8;
}
else
{
d = 1; ;
}
sum_list[i, 3] = d;
c = 120 - (40 * i);
sum_list[i, 2] = c;
#endregion

Transform3DGroup tg = new Transform3DGroup();
tg.Children.Add(new RotateTransform3D(new AxisAngleRotation3D(new Vector3D(0, 1, 0), c)));
tg.Children.Add(new ScaleTransform3D(d, d, d));
tg.Children.Add(new TranslateTransform3D(b, 0, a));
_view.Children[i].Transform = tg;
}

#region sum_list region
sum_list[0, 4] = -2;
sum_list[1, 4] = -2;
sum_list[2, 4] = -2;
sum_list[3, 4] = 1;
sum_list[4, 4] = 2;
sum_list[5, 4] = 2;
sum_list[6, 4] = 2;
#endregion
}
#endregion

#region temp
double _pos = 0;

void PosChanged(double pos)
{

double delta = pos - _pos;
_pos = pos;
GetTran(delta);
}
#endregion

#region 返回位置transtate

private void GetTran(double sum)
{

for (int i = 0; i < _view.Children.Count; i++)
{
#region point move
#region 调整位置

sum_list[i, 1] += sum / 270;

//angel
if (sum > 0)
{
if (sum_list[i, 4] == -2)
{
sum_list[i, 3] += sum / 2000;
}
else if (sum_list[i, 4] == 0)
{
sum_list[i, 3] -= sum / 2000;
}
else if (sum_list[i, 4] == 2)
{
sum_list[i, 3] -= sum / 2000;
}

}
else
{
if (sum_list[i, 4] == -2)
{
sum_list[i, 3] += sum / 2000;
}
else if (sum_list[i, 4] == 0)
{
sum_list[i, 3] += sum / 2000;
}
else if (sum_list[i, 4] == 2)
{
sum_list[i, 3] -= sum / 2000;
}

}


if (sum > 0)
{
if (sum_list[i, 2] == 0)
{
sum_list[i, 4] = 2;
}
sum_list[i, 2] -= sum / 10;
if (sum_list[i, 2] == 0)
{
sum_list[i, 4] = 0;
}

}
else if (sum < 0)
{
if (sum_list[i, 2] == 0)
{
sum_list[i, 4] = -2;
}
sum_list[i, 2] -= sum / 10;
if (sum_list[i, 2] == 0)
{
sum_list[i, 4] = 0;
}

}

#endregion
Transform3DGroup tg = new Transform3DGroup();
tg.Children.Add(new RotateTransform3D(new AxisAngleRotation3D(new Vector3D(0, 1, 0), sum_list[i, 2])));
tg.Children.Add(new ScaleTransform3D(sum_list[i, 3], sum_list[i, 3], sum_list[i, 3]));
tg.Children.Add(new TranslateTransform3D(sum_list[i, 1], 0, sum_list[i, 0]));

_view.Children[i].Transform = tg;
#endregion
}
Volidating();
}
#endregion

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代码补充 #region 校验 private void Volidating() { for (int i = 0; i < _view.Children.Count; i++) { if (sum_list[i, 3] >= 1) { sum_list[i, 1] = 0; sum_list[i, 3] = 1; sum_list[i, 2] = 0; sum_list[i, 4] = 0; int sum = 1; for (int j = i - 1; j >= 0; j--) { sum_list[j, 3] = 1 - (0.2) * sum; if (sum_list[j, 3] <= 0) { sum_list[j, 3] = 0; } sum_list[j, 2] = 40 * sum; sum_list[j, 1] = -1.5 * sum; sum++; } sum = 1; for (int j = i + 1; j < _view.Children.Count; j++) { sum_list[j, 3] = 1 - (0.2) * sum; if (sum_list[j, 3] <= 0) { sum_list[j, 3] = 0; } sum_list[j, 2] = 40 * sum * (-1); sum_list[j, 1] = 1.5 * sum; sum++; } break; } } } #endregion #region mouse private void _view_mousedown(object sender, MouseButtonEventArgs e) { if (sub_time != null) { sub_time.Stop(); } ismousedown = true; startPoint = new Point(Mouse.GetPosition(sender as IInputElement).X, Mouse.GetPosition(sender as IInputElement).Y); } private void _view_mousemove(object sender, MouseEventArgs e) { if (!ismousedown) return; endPoint = e.GetPosition(sender as IInputElement); for (int i = 4; i > 0; i--) { sum_queue[i, 1] = sum_queue[i - 1, 1]; } sum_queue[0, 1] = endPoint.X; double _sum = (endPoint.X - startPoint.X); GetTran(_sum); currentPoint.X = startPoint.X; currentPoint.Y = startPoint.Y; startPoint.X = endPoint.X; startPoint.Y = endPoint.Y; sub_time1.Tick += new EventHandler(Tick_Event1); sub_time1.Interval = TimeSpan.FromMilliseconds(60); sub_time1.Start(); for (int i = 4; i > 0; i--) { sum_queue[i, 1] = sum_queue[i - 1, 1]; } sum_queue[0, 1] = endPoint.X; } double x = 0; private void Tick_Event(object sender, EventArgs args) { double _a = 0; _b = 0; _a = sum_list[0, 3]; for (int u = 1; u < _view.Children.Count; u++) { if (sum_list[u, 3] > _a) { _a = sum_list[u, 3]; _b = u; } } if (x > 0) { if (x < 1E-3) { sub_time.Stop(); for (int i = 4; i >= 0; i--) { sum_queue[i, 1] = 0; } if (sum_list[_b, 4] == 2) { SetAnimation(true, (1 - sum_list[_b, 3]) * 2000); } else if ((sum_list[_b, 4] == -2)) { SetAnimation(false, (sum_list[_b, 3] - 1) * 2000); } } else { GetTran(x); x *= 0.9; } } else { if (x > -1E-3) { sub_time.Stop(); for (int i = 4; i >= 0; i--) { sum_queue[i, 1] = 0; } if (sum_list[_b, 4] == 2) { SetAnimation(true, (1 - sum_list[_b, 3]) * 2000); } else if ((sum_list[_b, 4] == -2)) { SetAnimation(false, (sum_list[_b, 3] - 1) * 2000); } } else { GetTran(x); x *= 0.9; } } } private void Tick_Event1(object sender, EventArgs args) { for (int i = 4; i > 0; i--) { sum_queue[i, 1] = sum_queue[i - 1, 1]; } sum_queue[0, 1] = endPoint.X; sub_time1.Stop(); } private double retdis() { double sum = 0; sum = (sum_queue[0, 1] - sum_queue[4, 1]) * 3; return sum; } private void _view_mouseup(object sender, MouseButtonEventArgs e) { ismousedown = false; endPoint = new Point(Mouse.GetPosition(sender as IInputElement).X, Mouse.GetPosition(sender as IInputElement).Y); double _sum = (endPoint.X - currentPoint.X); #region 残影 ismousedown = false; x = retdis(); sub_time.Tick += new EventHandler(Tick_Event); sub_time.Interval = TimeSpan.FromMilliseconds(30); sub_time.Start(); #endregion } #endregion /// <summary> /// 设置动画 /// </summary> /// <param name="_tf">bool的判断</param> /// <param name="_sum">动画的偏移量</param> #region private void SetAnimation(bool _tf, double _sum) { _pos = 0; _sum = _sum * (-1); DoubleAnimation da = new DoubleAnimation(0, _sum, new Duration(TimeSpan.FromMilliseconds(10))); Console.Write("_sum is:" + _sum + "\n"); this.BeginAnimation(Window1.TranslatePosProperty, da); } #endregion } }

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源文件 http://www.gyhd-tv.com/3dshow.rar