问题
I am new to WPF, and am trying to build a 3d viewport with helix toolkit. The viewport, grid etc show up as expected, And I add a simple tube. Now, i want to use a new function to update the Transform of the tube, based on user input, but I cannot get it to work.
Where am i going wrong here?
Thank you.
.xaml
<UserControl x:Class="WPFUserControl.UserControl1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:HelixToolkit="clr-namespace:HelixToolkit.Wpf;assembly=HelixToolkit.Wpf"
mc:Ignorable="d"
d:DesignHeight="480" d:DesignWidth="640">
<Grid>
<!-- The HelixViewport3D supports camera manipulation, and can be used just like the Viewport3D -->
<HelixToolkit:HelixViewport3D ZoomExtentsWhenLoaded="True" Name="MainViewPort">
<HelixToolkit:SunLight/>
<ModelVisual3D Content="{Binding Model}"/>
<HelixToolkit:GridLinesVisual3D Width="40" Length="40" MinorDistance="1" MajorDistance="1" Thickness="0.01"/>
</HelixToolkit:HelixViewport3D>
</Grid>
</UserControl>
.xaml.cs
using HelixToolkit.Wpf;
namespace WPFUserControl
{
/// <summary>
/// Interaction logic for UserControl1.xaml
/// </summary>
public partial class UserControl1 : UserControl
{
public TubeVisual3D tube1 = new TubeVisual3D();
public UserControl1()
{
InitializeComponent();
DataContext = this;
Setup();
}
public void SetTranslation(double xx) //this is called from an external app.
{
Console.Write(xx); //This prints as expected.
//TranslateTransform3D Trans = new TranslateTransform3D(new Vector3D(xx, 0, 0));
// tube1.Transform = Trans; //this does not work.
}
public void Setup()
{
int tubeDiameter = 5;
tube1.Path = new Point3DCollection();
tube1.Path.Add(new Point3D(-15, 0, 0));
tube1.Path.Add(new Point3D(15, 0, 0));
tube1.Diameter = tubeDiameter;
tube1.Fill = Brushes.Red;
tube1.IsPathClosed = false;
MainViewPort.Children.Add(tube1);
}
}
}
来源:https://stackoverflow.com/questions/38511647/wpf-with-helix-toolkit-animate-with-code-behind