环境

• WPF

• .net8.0-windows

引用第三方库

shell
  HelixToolkit.SharpDX.Core.Wpf

MainWindow.xaml中引入控件

xaml
<hx:Viewport3DX
  x:Name="view1"
  Title="Dynamic Points and Lines"
  BackgroundColor="Black"
  CameraMode="Inspect"
  ClipToBounds="False"
  CoordinateSystemLabelForeground="Green"
  EffectsManager="{Binding EffectsManager}"
  EnableRenderFrustum="False"
  FixedRotationPoint="0,0,0"
  FixedRotationPointEnabled="True"
  IsPanEnabled="True"
  IsZoomEnabled="True"
  ShowCameraInfo="True"
  ShowCameraTarget="True"
  ShowCoordinateSystem="True"
  ShowFrameDetails="True"
  ShowFrameRate="True"
  ShowTriangleCountInfo="True"
  ShowViewCube="True"
  SubTitle="change number of points and check FPS"
  TextBrush="Black"
  UseDefaultGestures="True"
  ZoomExtentsWhenLoaded="True">
  <hx:Viewport3DX.Camera>
      <hx:OrthographicCamera UpDirection="0,-1,0" />
  </hx:Viewport3DX.Camera>
  <hx:Viewport3DX.InputBindings>
      <KeyBinding Key="B" Command="hx:ViewportCommands.BackView" />
      <KeyBinding Key="F" Command="hx:ViewportCommands.FrontView" />
      <KeyBinding Key="U" Command="hx:ViewportCommands.TopView" />
      <KeyBinding Key="D" Command="hx:ViewportCommands.BottomView" />
      <KeyBinding Key="L" Command="hx:ViewportCommands.LeftView" />
      <KeyBinding Key="R" Command="hx:ViewportCommands.RightView" />
      <KeyBinding Command="hx:ViewportCommands.ZoomExtents" Gesture="Control+E" />
      <MouseBinding Command="hx:ViewportCommands.Rotate" Gesture="RightClick" />
      <MouseBinding Command="hx:ViewportCommands.Zoom" Gesture="MiddleClick" />
      <MouseBinding Command="hx:ViewportCommands.Pan" Gesture="LeftClick" />
  </hx:Viewport3DX.InputBindings>

  <hx:PointGeometryModel3D
      x:Name="model"
      FixedSize="True"
      Geometry="{Binding Points}"
      IsRendering="True"
      Color="White" />
</hx:Viewport3DX>

创建MainViewModel

如果需要每个点自定义颜色，需要初始化Colors集合，且PointGeometryModel3D的颜色需要为White

cs
 public PointGeometry3D Points { get; }
 public MainViewModel()
 {
     Points = new PointGeometry3D
     {
        IsDynamic = true,
       Positions = new Vector3Collection(),
       Colors = new Color4Collection(),
     };
}

更新数据点

cs
viewModel.Points.Positions.Clear();
viewModel.Points.Colors.Clear();
foreach (var point in points)
{
  viewModel.Points.Positions.Add(p);
  viewModel.Points.Colors.Add(new Color4(1,0,1, 1.0f));
}

刷新数据

cs
viewModel.Points.UpdateVertices();

效果展示