WPF编程--helix-toolkit 官方SimpleDemo

视频:  WPF helix-toolkit 官方SimpleDemo_哔哩哔哩_bilibili

源码: https://github.com/liugang198409/WpfDemo/tree/master/3DSimpleDemo

1. 环境

Visual Studio 2019 + .NET Framework 4.8.1

2. NuGet导入依赖

HelixToolkit

HelixToolkit.wpf

3. 创建类MainViewModel.cs

// --------------------------------------------------------------------------------------------------------------------
// <copyright file="MainViewModel.cs" company="Helix Toolkit">
//   Copyright (c) 2014 Helix Toolkit contributors
// </copyright>
// <summary>
//   Provides a ViewModel for the Main window.
// </summary>
// --------------------------------------------------------------------------------------------------------------------

namespace _3DSimpleDemo
{
    using System.Windows.Media;
    using System.Windows.Media.Media3D;

    using HelixToolkit.Wpf;

    /// <summary>
    /// Provides a ViewModel for the Main window.
    /// </summary>
    public class MainViewModel
    {
        /// <summary>
        /// Initializes a new instance of the <see cref="MainViewModel"/> class.
        /// </summary>
        public MainViewModel()
        {
            // Create a model group
            var modelGroup = new Model3DGroup();

            // Create a mesh builder and add a box to it
            var meshBuilder = new MeshBuilder(false, false);
            meshBuilder.AddBox(new Point3D(0, 0, 1), 1, 2, 0.5);
            meshBuilder.AddBox(new Rect3D(0, 0, 1.2, 0.5, 1, 0.4));

            // Create a mesh from the builder (and freeze it)
            var mesh = meshBuilder.ToMesh(true);

            // Create some materials
            var greenMaterial = MaterialHelper.CreateMaterial(Colors.Green);
            var redMaterial = MaterialHelper.CreateMaterial(Colors.Red);
            var blueMaterial = MaterialHelper.CreateMaterial(Colors.Blue);
            var insideMaterial = MaterialHelper.CreateMaterial(Colors.Yellow);

            // Add 3 models to the group (using the same mesh, that's why we had to freeze it)
            modelGroup.Children.Add(new GeometryModel3D { Geometry = mesh, Material = greenMaterial, BackMaterial = insideMaterial });
            modelGroup.Children.Add(new GeometryModel3D { Geometry = mesh, Transform = new TranslateTransform3D(-2, 0, 0), Material = redMaterial, BackMaterial = insideMaterial });
            modelGroup.Children.Add(new GeometryModel3D { Geometry = mesh, Transform = new TranslateTransform3D(2, 0, 0), Material = blueMaterial, BackMaterial = insideMaterial });

            // Set the property, which will be bound to the Content property of the ModelVisual3D (see MainWindow.xaml)
            this.Model = modelGroup;
        }

        /// <summary>
        /// Gets or sets the model.
        /// </summary>
        /// <value>The model.</value>
        public Model3D Model { get; set; }
    }
}

 4. 编辑MainWindow.xaml

<Window x:Class="_3DSimpleDemo.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:HelixToolkit="clr-namespace:HelixToolkit.Wpf;assembly=HelixToolkit.Wpf"
    xmlns:local="clr-namespace:_3DSimpleDemo"
    Title="SimpleDemo"
    Width="640"
    Height="480">
    <Window.DataContext>
        <local:MainViewModel />
    </Window.DataContext>
    <Grid>
        <Grid.Resources>
            <BooleanToVisibilityConverter x:Key="BooleanToVisibilityConverter" />
            <HelixToolkit:NotNullToVisibilityConverter x:Key="NotNullToVisibilityConverter" />
            <Style TargetType="{x:Type HelixToolkit:HelixViewport3D}">
                <Setter Property="FocusVisualStyle" Value="{x:Null}" />
                <Setter Property="Template">
                    <Setter.Value>
                        <ControlTemplate TargetType="{x:Type HelixToolkit:HelixViewport3D}">
                            <Border
                                Background="{TemplateBinding Background}"
                                BorderBrush="{TemplateBinding BorderBrush}"
                                BorderThickness="{TemplateBinding BorderThickness}">
                                <Grid FocusVisualStyle="{x:Null}">
                                    <HelixToolkit:CameraController
                                        x:Name="PART_CameraController"
                                        CameraMode="{TemplateBinding CameraMode}"
                                        CameraRotationMode="{TemplateBinding CameraRotationMode}"
                                        ChangeFieldOfViewCursor="{TemplateBinding ChangeFieldOfViewCursor}"
                                        DefaultCamera&