源码:https://download.csdn.net/download/liugang590/87462000 

目录

1. 环境

2. 创建项目

 3. NuGet安装依赖

 4. 创建3D_models文件夹存放底座模型文件

5. 编辑MainView.xaml代码

6. 编辑MainView.xaml.cs代码

7. 运行验证

---

1. 环境

Visual Studio 2019 + .NET FrameWork 4.8.1

2. 创建项目

 3. NuGet安装依赖

HelixToolkit.Wpf

 4. 创建3D_models文件夹存放底座模型文件

5. 编辑MainView.xaml代码

<Window x:Class="_3DTransformDemo.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:_3DTransformDemo"
        xmlns:hv="http://helix-toolkit.org/wpf"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition/>
            <RowDefinition Height="10*" />
        </Grid.RowDefinitions>
        <Button Content="旋转" Height="20" Width="100" Click="Button_Click"/>
        <!--加载模型：设置光源、相机、坐标网格-->
        <hv:HelixViewport3D Grid.Row="1" Name="viewPort3D" ZoomExtentsWhenLoaded="True"
                            ShowViewCube="false" ShowCoordinateSystem="True"
                            CoordinateSystemLabelForeground="White"
                            CoordinateSystemVerticalPosition="Center"
                            CoordinateSystemHorizontalPosition="Right"
                            CoordinateSystemHeight="50" 
                            CoordinateSystemWidth="50"
                            RenderOptions.EdgeMode="Unspecified"
                            BorderBrush="White"
                            BorderThickness="0"
                            ShowFrameRate="False"
                            ShowCameraInfo="True"
                            IsManipulationEnabled="True"
                            Background="Transparent"
                            >
            <hv:HelixViewport3D.DefaultCamera>
                <PerspectiveCamera LookDirection="-587.475,-330.619,-229.365" Position="587.475,330.619,256.278" UpDirection="-0.248,-0.139,0.959" FieldOfView="45" NearPlaneDistance="0.1"/>
            </hv:HelixViewport3D.DefaultCamera>

            <ModelVisual3D>
                <hv:SunLight/>
                <hv:GridLinesVisual3D Width="1000" Length="1000" MinorDistance="50" MajorDistance="50" Thickness="1" Fill="#E5CFCECE"/>
            </ModelVisual3D>
        </hv:HelixViewport3D>

    </Grid>

</Window>

6. 编辑MainView.xaml.cs代码

using HelixToolkit.Wpf;
using System;
using System.IO;
using System.Windows;
using System.Windows.Media.Animation;
using System.Windows.Media.Media3D;

namespace _3DTransformDemo
{
    /// <summary>
    /// MainWindow.xaml 的交互逻辑
    /// </summary>
    public partial class MainWindow : Window
    {
        Model3D model;
        public MainWindow()
        {
            InitializeComponent();
            model = LoadModel("IRB6700-MH3_245-300_IRC5_rev02_LINK01_CAD.stl");
            Display();
        }

        public Model3D LoadModel(string modelName)
        {
            ModelImporter import = new ModelImporter();
            string basePath = Directory.GetParent(Directory.GetCurrentDirectory()).Parent.FullName + "\\3D_Models\\";
            Model3D model = import.Load(basePath + modelName);
            return model;
        }

        public void TransformModel(double angle)
        {
            RotateTransform3D rotateTransform = new RotateTransform3D();
            AxisAngleRotation3D rotateAxis = new AxisAngleRotation3D(new Vector3D(0, 0, 1), angle);
            Rotation3DAnimation rotateAnimation = new Rotation3DAnimation(rotateAxis, TimeSpan.FromSeconds(5));
            rotateAnimation.DecelerationRatio = 0.8;

            Transform3DGroup transform3DGroup = new Transform3DGroup();
            transform3DGroup.Children.Add(rotateTransform);
            transform3DGroup.Children.Add(model.Transform);
            model.Transform = transform3DGroup;
            rotateTransform.BeginAnimation(RotateTransform3D.RotationProperty, rotateAnimation);
        }

        public void Display()
        {
            ModelVisual3D modelVisual3d = new ModelVisual3D();
            modelVisual3d.Content = model;
            viewPort3D.Children.Add(modelVisual3d);
        }

        private void Button_Click(object sender, RoutedEventArgs e)
        {
            TransformModel(180);
            Display();
        }
    }
}

7. 运行验证