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+1

Embedded Resources

Anonymous 5 years ago 0
This discussion was imported from CodePlex

qu1ckdry wrote at 2014-03-03 17:25:

Hey!

I've been enjoying the usefulness of this toolkit so far during this project! Now I'm thinking about releasing something and I'd like to embed the model I created. Is it possible to reference an embedded resource? I'd rather not release the .obj file along with my .exe.

I've read this article which uses a file stream to access a resource and I've been able to use it to open an embedded .3ds model, using:
MyModel = reader.Read(Assembly.GetExecutingAssembly().GetManifestResourceStream("HelixCs.e100.3DS"));
However I'm unable to open the texture file in the same way, nor was I able to get it working with .obj.

Any ideas how I can open an embedded model?

Thanks for any help!
+1

Viewport2DVisual3D

Anonymous 5 years ago • updated by parischaikinpllc 3 months ago 4
This discussion was imported from CodePlex

DuaneTNM wrote at 2011-08-25 03:21:

Are there any examples showing Viewport2DVisual3D with HelixView3D.  Can this type of 2D on 3D be achieved with the HelixToolKit.

 

Thanks


objo wrote at 2011-08-25 07:44:

Hi DuaneTNM, sorry there is no example using Viewport2DVisual3D. But I don't think there should be any problem to use it with the controls in HelixToolkit! 


mipa87 wrote at 2011-08-30 17:42:

First, thank you for this project.

How can I use common WPF controls (buttons, sliders) with this toolkit (with supporting button click, slider value changed and etc.)? I'm using Viewport2DVisual3D for this, render is ok, but events are not triggered. What I'm doing wrong?

Thanks

Here is my code:

             <helix:HelixView3D IsHeadLightEnabled="True" ZoomToFitWhenLoaded="True" ShowFrameRate="True" ShowFieldOfView="True" ShowCoordinateSystem="True" MouseDown="HelixView3D_MouseDown" Name="helixView3D" IsHitTestVisible="true">
                <helix:HelixView3D.Camera>
                    <PerspectiveCamera Position="0, 0, 4"/>
                </helix:HelixView3D.Camera>
                <ModelVisual3D>
                    <ModelVisual3D.Content>
                        <Model3DGroup x:Name="group">
                            <DirectionalLight Color="White" Direction="-1, -1, -3" />
                        </Model3DGroup>
                    </ModelVisual3D.Content>
                    <Viewport2DVisual3D>
                        <Viewport2DVisual3D.Geometry>
                            <MeshGeometry3D Positions="-1,1,0 -1,-1,0 1,-1,0 1,1,0"
TextureCoordinates="0,0 0,1 1,1 1,0" TriangleIndices="0 1 2 0 2 3"/>
                        </Viewport2DVisual3D.Geometry>

                        <Viewport2DVisual3D.Material>
                            <DiffuseMaterial Viewport2DVisual3D.IsVisualHostMaterial="True" Brush="White"/>
                        </Viewport2DVisual3D.Material>
                        <Viewport2DVisual3D.Visual>

                            <StackPanel Orientation="Vertical">
                                <Button Click="Button_Click">Button</Button>
                                <Slider Value="100" ValueChanged="Slider_ValueChanged" />
                            </StackPanel>
                        </Viewport2DVisual3D.Visual>
                    </Viewport2DVisual3D>
                </ModelVisual3D>
            </helix:HelixView3D>


objo wrote at 2011-08-31 20:36:

I think this is related to issue 8172, and it is not solved yet...

http://helixtoolkit.codeplex.com/workitem/8172


mipa87 wrote at 2011-09-01 00:06:

Thanks for the reply, I solved it with IsViewportHitTestVisible="True"

Here is good article about it: http://msdn.microsoft.com/en-us/library/ms752097.aspx

I have one another question, what's the difference between HelixView3D and ViewPort3DConrtroller?

And here is my working code:

<helix:HelixView3D IsViewportHitTestVisible="True">
	<helix:HelixView3D.Camera>
		<PerspectiveCamera LookDirection="-10,-10,-10" Position="10,10,10" UpDirection="0,0,1"/>
	</helix:HelixView3D.Camera>
	<helix:DefaultLightsVisual3D/>
	<ModelVisual3D>
		<Viewport2DVisual3D >
			<Viewport2DVisual3D.Transform>
				<RotateTransform3D>
					<RotateTransform3D.Rotation>
						<AxisAngleRotation3D x:Name="uiRotate" Angle="40" Axis="0, 1, 0" />
					</RotateTransform3D.Rotation>
				</RotateTransform3D>
			</Viewport2DVisual3D.Transform>
			<Viewport2DVisual3D.Geometry>
				<MeshGeometry3D Positions="-1,1,0 -1,-1,0 1,-1,0 1,1,0"
TextureCoordinates="0,0 0,1 1,1 1,0" TriangleIndices="0 1 2 0 2 3"/>
			</Viewport2DVisual3D.Geometry>
			<Viewport2DVisual3D.Material>
				<DiffuseMaterial Viewport2DVisual3D.IsVisualHostMaterial="True" Brush="White"/>
			</Viewport2DVisual3D.Material>
			<Viewport2DVisual3D.Visual>
				<StackPanel Orientation="Vertical">
					<Button Background="Yellow" Click="Button_Click">Button1</Button>
					<Slider Value="100" ValueChanged="Slider_ValueChanged" />
				</StackPanel>
			</Viewport2DVisual3D.Visual>
		</Viewport2DVisual3D>
	</ModelVisual3D>
</helix:HelixView3D> 

objo wrote at 2011-09-14 09:24:

try the newest version of the library, hopefully the fix on UIElements works.

Note that HelixView3D is renamed to HelixViewport3D and the IsViewportHitTestVisible property is removed.


mipa87 wrote at 2011-09-27 19:33:

Thanks, it works now correctly!

+1

Help required in opennig a 3D model (.ply) using FileModelVisual3D in WPF

Anonymous 5 years ago 0
This discussion was imported from CodePlex

pyrrhicpk wrote at 2012-09-24 03:38:

Hi,

I have just started using HelixToolkit and trying to load a 3D model (.ply) in my WPF application using FileModelVisual3D with the following code:

 

FileModelVisual3D scan = new FileModelVisual3D();
scan.Source = "C:\\box.3ds";
       
myview.Children.Add(scan); //myview is my HelixViewport3D
this.Content = myview;

Running the above code does not show the model. Any suggestions?

Thanks

+1

MVVM with background work

Anonymous 5 years ago 0
This discussion was imported from CodePlex

g_todeschini wrote at 2013-08-13 17:41:

I'm trying to create a WPF application using the MVVM pattern.
In my view (UserControl class derived) I've placed the HelixViewport3D control and I've assigned an instance of my ViewModel to the DataContext property

<h:HelixViewport3D RotateGesture="Alt+RightClick" PanGesture="RightClick">
<h:HelixViewport3D.Camera>
<OrthographicCamera Position="80.22,0,0" LookDirection="-80.22,0,0" UpDirection="0,0,1" Width="56"/>
</h:HelixViewport3D.Camera>
<h:SunLight />
<ModelVisual3D Content="{Binding Model3D}" />
</h:HelixViewport3D>

The ModelVisual3D content property is binded with the Model3D propery of my ViewModel.

All works fine but I would like to create the model in a function that works in background. I've tried to do this using both the BackgroundWorker class that the Task.Factory.StartNew but I've always get the message that the object is property of another thread.

One of my attempt is the following

public class MyViewModel : BaseViewModel
{
private MyData _model; // the data on which to generate my 3d model
private Model3DGroup _model3d;
private CancellationTokenSource _source;

public Model3DGroup Model3D
{
    get { return _model3d; }
    set
    {
        if (_model3d != value)
        {
            _model3d = value;
             RaisePropertyChanged(() => Model3D);
        }
    }
}

private void CreateModel3D(object dispatcherObject)
{
    Dispatcher dispatcher = (Dispatcher)dispatcherObject;

    Material nodesMaterial = MaterialHelper.CreateMaterial(Colors.Green);
    double size = Math.Max(_model.Limits.Width, _model.Limits.Height);
    double dn = size / 100;
    double db = size / 120;
    int thetaDiv = 10;

    foreach (Strauss.Node node in _model.Nodes)
    {
         MeshBuilder meshBuilder = new MeshBuilder(false, false);
         meshBuilder.AddSphere(new Point3D(node.X, node.Y, node.Z), dn, thetaDiv, thetaDiv / 2);
         MeshGeometry3D mesh = meshBuilder.ToMesh(true);
         dispatcher.Invoke((Action)(() => _model3d.Children.Add(new GeometryModel3D { Geometry = mesh, Material = nodesMaterial, BackMaterial = nodesMaterial })));
    }
}

private void ModelLoaded(object sender, EventArgs args)
{
    System.Windows.Window win = App.Current.Windows[0];
    DocManagerViewModel docManager = win.DataContext as DocManagerViewModel;
    _source = new CancellationTokenSource();
    Task task = Task.Factory.StartNew(CreateModel3D, _model3d.Dispatcher, _source.Token);
}
}

The process starts from the ModelLoaded event handler.

Can anyone please help me?
Thanks in advance.

RobPerkins wrote at 2013-08-14 18:02:

1 -- Use Task.Factory.StartNew(). BackgroundWorker is prone to a race condition.
2 -- All WPF objects, including GeometryModel3D and MeshGeometry3D, have to be "Frozen" to be passed between threads. See "Freezable" in the MSDN documentation.

Change the code in CreateModel3D from what you have to something like:
var gm3d = new GeometryModel3D { Geometry = mesh, Material = nodesMaterial, BackMaterial = nodesMaterial };
dispatcher.Invoke((Action)(() => _model3d.Children.Add(gm3d.GetAsFrozen())));
+1

Event that fires when the camera stops moving

Anonymous 5 years ago 0
This discussion was imported from CodePlex

everytimer wrote at 2014-07-31 21:24:

I need to perform an operation right after the user has stopped moving the camera (everytime he does it).

I'm doing it now by subscribing to every MouseEvent that allows interaction with the camera (specifically ButtonUp). The problem is that when the user has zoomed I don't have a way to know when he has stopped zooming. Other issue of capturing mouse events is that when the camera change has been generated programatically (set some saved view, etc) and there is some animation I can't do it either.

I would like to know if there is some event that I can subscribe to know when the Camera is "done", when it has stopped moving.

If such event doesn't exist I would like to know if it is possible to create one without modifying the source code of HelixToolKit and how it could be done.

Thank you very much.
+1

Show wireframe as quads with Helix and SharpDX

Raul Burgos 4 years ago in Question • updated by Tony 23 hours ago 168
Hello,
Is it possible to get this effect ( Connected Mesh to QuadFaces ) in the viewportDX when a .OBJ model is readed on it?.
I'm using HelixToolkit.Wpf.SharpDX.
Somebody can post a example?
Thanks in advance.

SharpDX WPF
0

Superior Systems

jagadish23kumar 5 days ago in New feature 0

Superior Systems is an organization which has diversified interest in the field of sales and service. We started our operations in 2013. Being a niche player, we have over a decade of experience in setting the standards for sales & service deliverables. The Superior Systems was formed in the beginning of 2013 by group of dedicated personnel with relevant experience. All the divisions in the company are being headed by the pioneers in the respective industry. We believe that organizational excellence is the outcome of excellence exhibited by individuals at different levels. To enable this, our work culture tries to draw out the best from every member of the Superior System’s family. We believe that organizational effectiveness is best achieved by control through culture and that every individual is capable of self-governance.

0

WPF Helix Toolkit MVVM Exception "...Child of another Visual Tree"

claude 2 months ago in Question • updated by Happy Todd 3 weeks ago 1

In my project i am trying to integrate some 3D Visualization using Helix Toolkit. A Page showing a ViewPort3D with itemSource bound to a DataContext with an ObservableCollection of Visual3D is one of several Pages which can be displayed in my Application. A Navigation bar lets me switch between these pages.

My problem is that once i have populated my ObservableCollection with Visual3Ds, then navigate to a different page, then return and try to make changes to the ObservableCollection again, I constantly receive an Exception that my collection is already part of another VisualTree!

Presumably, since a new View is instanciated (and presumably the old View still survives somehow)whenever i navigate between pages, but my DataContext is persistant, this is what causes the problem. 

Has anyone come across this problem? Sorry for the rough explanation but my Software is too large to post!

Regards

0

How to get the translated/moved Point position from CursorOnElementPosition.Value.X

RS_FE 3 months ago in Question 0

Hey folks,

when using CursorOnElementPosition.Value.X it retrieves the position of the model which is not tranlated/moved to an offset/animated position.

How do I retrieve the current and translated position of the mouse down point?

Media3D WPF
0

RenderingEventListener loop

ikonuk 4 months ago in Question • updated by kitchenprovance 3 months ago 3

Is there anyway to stop this loop? Any way to remove the listener from the eventhandler queue?

Any suggestion would be appreciated.

i.konuk