0
我有200张照片，我想用200张照片一个一个地构建一个立方体。现在我已经建立了立方体，我想完成的功能是立方体的中心依次沿着x y z轴旋转，现在我已经建立了立方体，并设置了Viewport3D.Camera。我想旋转立方体，并保持立方体在相机视野中，使用C＃中的代码完成该功能。 现在我将在xaml和C＃中复制我的代码，以帮助您理解我的代码。如何沿着x，y和z轴依次旋转ModelVisual3D对象的中心
我的代码在XAML：
Window x:Class="ThreeDemensionsCube.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="350" Width="525">
<Grid Background="Black" >
<Viewport3D x:Name="viewport" Margin="0" Height="319" VerticalAlignment="Top" >
<ModelVisual3D>
<ModelVisual3D.Content>
<Model3DGroup x:Name="group">
<!--Ligthts-->
<AmbientLight Color="Gray" />
<DirectionalLight Color="gray" Direction="1,-1,-1" />
<DirectionalLight Color="Gray" Direction="-1,1,1" />
</Model3DGroup>
</ModelVisual3D.Content>
</ModelVisual3D>
<Viewport3D.Camera>
<PerspectiveCamera x:Name="camera"
Position = "30, 30, 90"
LookDirection = "-30, -30, -90"
UpDirection = "0, 1, 0"
FieldOfView = "60">
<PerspectiveCamera.Transform>
<Transform3DGroup>
<RotateTransform3D>
<RotateTransform3D.Rotation>
<AxisAngleRotation3D
Axis="0 1 0"
Angle="{Binding ElementName=hscroll, Path=Value}" />
</RotateTransform3D.Rotation>
</RotateTransform3D>
<RotateTransform3D>
<RotateTransform3D.Rotation>
<AxisAngleRotation3D
Axis="0 0 1"
Angle="{Binding ElementName=vscroll, Path=Value}" />
</RotateTransform3D.Rotation>
</RotateTransform3D>
</Transform3DGroup>
</PerspectiveCamera.Transform>
</PerspectiveCamera>
</Viewport3D.Camera>
</Viewport3D>
<Border VerticalAlignment="Top" HorizontalAlignment="Right" Background="White" BorderBrush="Bisque" BorderThickness="3,5,3,5">
<StackPanel>
<Button Content="processImage" HorizontalAlignment="Left" VerticalAlignment="Top" Width="75" Margin="5" Click="processImage"/>
<Button Content="loadImage" HorizontalAlignment="Left" VerticalAlignment="Top" Width="75" Margin="5" Click="loadProcessedImage"/>
</StackPanel>
</Border>
<DockPanel>
<ProgressBar x:Name="pBar" DockPanel.Dock="Bottom" VerticalAlignment="Bottom" Height="9"></ProgressBar>
</DockPanel>
</Grid>
我在C＃代码：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.IO;
using System.Runtime.InteropServices;
using Emgu.CV;
using Emgu.CV.Structure;
using System.Windows.Media.Media3D;
namespace ThreeDemensionsCube
{
/// <summary>
/// MainWindow.xaml Interactive logic
/// </summary>
public partial class MainWindow : Window
{
string appPath = System.AppDomain.CurrentDomain.SetupInformation.ApplicationBase+"Images";
string newAppPath = System.AppDomain.CurrentDomain.SetupInformation.ApplicationBase + "ProcessedImages";
double a = 0;
public MainWindow()
{
InitializeComponent();
}
private void imageProc()
{
//define a DirectoryInfo object
DirectoryInfo dir = new DirectoryInfo(appPath);
DirectoryInfo[] listDir = dir.GetDirectories();
FileInfo[] listFile = dir.GetFiles("*.jpg");
int picNum = listFile.Length;
if (picNum > 0)
{
//create new file
string newFileName = appPath.Replace("Images", "ProcessedImages");
DirectoryInfo newDir = new DirectoryInfo(newFileName);
newDir.Create();
for (int i = 0; i < picNum; i++)
{
Image<Bgra, byte> image = new Image<Bgra, byte>(listFile[i].FullName.ToString());
Image<Bgra, byte> dst = setAlphaImage(image);
string fullFileName = listFile[i].FullName.ToString().Replace("jpg", "png").Replace("Images", "ProcessedImages");
dst.ToBitmap().Save(fullFileName);
double value = i * 100.0/picNum;
pBar.Dispatcher.Invoke(new Action<System.Windows.DependencyProperty, object>(pBar.SetValue), System.Windows.Threading.DispatcherPriority.Background, ProgressBar.ValueProperty, value);
}
}
else
{
MessageBox.Show("please select a valid file")
}
}
private void cubeShow()
{
//define a DirectoryInfo object
DirectoryInfo dir = new DirectoryInfo(newAppPath);
DirectoryInfo[] listDir = dir.GetDirectories();
FileInfo[] listFile = dir.GetFiles("*.png");
int picNum = listFile.Length;
if (picNum > 0)
{
for(int i=0;i<picNum;i++)
{
a += 0.1;
MeshGeometry3D mesh = new MeshGeometry3D();
mesh.Positions.Add(new Point3D(a, -10, 10));
mesh.Positions.Add(new Point3D(a, -10, -10));
mesh.Positions.Add(new Point3D(a, 10, -10));
mesh.Positions.Add(new Point3D(a, 10, 10));
mesh.TriangleIndices.Add(0);
mesh.TriangleIndices.Add(3);
mesh.TriangleIndices.Add(2);
mesh.TriangleIndices.Add(2);
mesh.TriangleIndices.Add(1);
mesh.TriangleIndices.Add(0);
mesh.TextureCoordinates.Add(new Point(0, 1));
mesh.TextureCoordinates.Add(new Point(1, 1));
mesh.TextureCoordinates.Add(new Point(1, 0));
mesh.TextureCoordinates.Add(new Point(0, 0));
mesh.TriangleIndices.Add(0);
mesh.TriangleIndices.Add(1);
mesh.TriangleIndices.Add(2);
mesh.TriangleIndices.Add(2);
mesh.TriangleIndices.Add(3);
mesh.TriangleIndices.Add(0);
mesh.TextureCoordinates.Add(new Point(0, 1));
mesh.TextureCoordinates.Add(new Point(1, 1));
mesh.TextureCoordinates.Add(new Point(1, 0));
mesh.TextureCoordinates.Add(new Point(0, 0));
BitmapImage bitmapimage = new BitmapImage(new Uri(listFile[i].FullName.ToString()));
Brush brush = new ImageBrush(bitmapimage);
GeometryModel3D mGeometry = new GeometryModel3D(mesh, new DiffuseMaterial(brush));
mGeometry.Transform = new Transform3DGroup();
group.Children.Add(mGeometry);
double value = i * 100.0/picNum;
pBar.Dispatcher.Invoke(new Action<System.Windows.DependencyProperty, object>(pBar.SetValue), System.Windows.Threading.DispatcherPriority.Background, ProgressBar.ValueProperty, value);
}
}
else
{
MessageBox.Show("please select a valid file");
}
}
private Image<Bgra, byte> setAlphaImage(Image<Bgra, byte> src)
{
Image<Bgra, byte> dst = src.Copy();
int rows = src.Rows;
int cols = src.Cols;
for (int i = 0; i < rows; i++)
{
for (int j = 0; j < cols; j++)
{
int blue = src.Data[i, j, 0];
int green = src.Data[i, j, 1];
int red = src.Data[i, j, 2];
//
if (Math.Abs(blue - green) < 20 && Math.Abs(blue - red) < 20 && Math.Abs(green - red) < 10)
{
dst.Data[i, j, 3] = 0;
}
//
else
{
dst.Data[i, j, 0] = 255;
dst.Data[i, j, 1] = 0;
dst.Data[i, j, 2] = 0;
dst.Data[i, j, 3] = src.Data[i, j, 0];
}
}
}
return dst;
}
private void processImage(object sender, RoutedEventArgs e)
{
imageProc();
}
private void loadProcessedImage(object sender,RoutedEventArgs e)
{
cubeShow();
}
}
}
