For bugs and new features, use the issue tracker located at GitHub.
Also try the chat room!
Is it possible to find distance between camera and a mesh?
behnam263 wrote at 2014-07-25 21:00:
BogusException wrote at 2014-07-25 21:31:
If you mean the center of the mesh, there has to be at least 2 ways to use the mesh center as origin and camera position in 3d in a simple trig function... as in this example...
Or are you talking about the nearest point/vertices to the camera?
This may help as well, not knowing the actual issue: Fitting view with perspective camera
How to limite camera zoom In/Out
Moez_rebai wrote at 2014-07-18 12:24:
Before Zoom :
After Zoom
Any idea how can i solve that issue
Regards,
everytimer wrote at 2014-07-18 20:54:
How to control the trackball via code?
zoras1986 wrote at 2013-04-21 23:25:
i'm starting my project from the contour demo samples of this awesome tool, but i cannot figure out how to control the trackball (don't know if is right call it like this, i mean the cude with the face "L, B, U, R, S..") by code in a wpf application (so c#). i can't figure out if it's something about the camera (view1.SetView(...)). or the model (model1.transform(...))
can someone help me?
a little piece of code
<ht:HelixViewport3D x:Name="view1" Camera="{ht:PerspectiveCamera 5.3,-12.3,3.3,-6.3,11,-6.6}" CameraChanged="view1_cameraChanged" ShowCameraInfo="True" Margin="0,71,0,0">
<ht:SunLight/>
<ht:FileModelVisual3D x:Name="model1" Source="D:/MARCO/Onthebrain/WPF - 3D - Kinect/Contour sample di Helix/Contour_demo/Contour_demo/bin/Debug/Astronaut.3ds"/>
</ht:HelixViewport3D>
inside a grid...in the .cs file i want to simulate the "right mouse click + mouse movement" input, as in the example, but in code...
thanks!
GridLinesVisual3D
murray_b wrote at 2012-05-10 04:35:
Hi Objo
Can I please request you make widthDirection propery public on this class like the lengthDirection.
I would like to use it for placement of labels at all the grid intersections.
Thanks
Murray
murray_b wrote at 2012-05-10 05:01:
Actually don't worry. Another day of stupidity for me
I just found your code
this.widthDirection = Vector3D.CrossProduct(this.Normal, this.lengthDirection);
How to Draw a Funnel
AQSRanck wrote at 2014-06-25 02:38:
objo wrote at 2014-06-25 09:55:
MeshBuilder.AddSurfaceOfRevolution
in the example
Source\Examples\WPF\ExampleBrowser\Examples\BuildingDemo\SiloVisual3D.cs
, I think a similar approach can be used to model a funnel.AQSRanck wrote at 2014-06-25 13:59:
Bob
AQSRanck wrote at 2014-06-26 04:15:
Thank you for your suggestion, I should not have much trouble creating a FunnelVisual3D. But I have hit a real snag. I work in VB rather than C# so I need to write my own version of theSiloVisual3D. However, I don't understand the lambda contained in the Dependency property, shown below.
public static readonly DependencyProperty DiameterProperty =
DependencyPropertyEx.Register<double, SiloVisual3D>("Diameter", 40, (s, e) => s.AppearanceChanged());
My version for VB will look about like this: (However the lambda is not quite right)Public Shared ReadOnly DiameterProperty As DependencyProperty =
DependencyPropertyEx.Register(Of Double, SiloVisual3D)("Diameter", 40, Function(s, e) s.AppearanceChanged())
I'm not asking for you to fix my code, but rather to help me understand the C# version, so that I can fix the VB version myself.
Once I master SiloVisual3D (in VB) I fully expect to create an entire library of specialized visuals for my needs, so getting past this snag is kind of important for me.
Now that I see this example from Building Demo, the funnel shape should not be to hard.
Bob
objo wrote at 2014-06-26 05:43:
But you could change to standard dependency property registration with
DependencyProperty.Register
, see
http://msdn.microsoft.com/en-us/library/ms750428(v=vs.110).aspx Make sure you add the property changed calback to the metadata.
RobPerkins wrote at 2014-06-26 17:15:
Try:
Public Shared ReadOnly DiameterProperty As DependencyProperty =
DependencyPropertyEx.Register(Of Double, SiloVisual3D)("Diameter", 40, Sub(s, e) s.AppearanceChanged())
(because the lambda is supposed to be a function returning "void" (in C# terms) and in VB, that's represented with a Sub() lambda instead of a Function() )AQSRanck wrote at 2014-06-26 17:45:
Would you believe that I spent the better part of a day because I forgot that rule.
Thank you very much Rob
HelixViewport3D's camera commands -- XAML bindings possible?
RobPerkins wrote at 2012-10-02 04:51:
I've gotten myself lost again.
Well, not that lost; my application is using the HelixViewPort3D, which of course comes with the ViewCube and key bindings for orienting views. That's working perfectly.
Now I have other UI elements *around* the HelixViewPort3D in the same UserControl which I'd like to configure to send commands to the HelixViewPort3D's camera controller. I had thought to do this with three buttons formatted something like this:
<dxb:BarButtonItem Content="XZ Front View" Command="{x:Static h:CameraController.FrontViewCommand}" CommandTarget="{Binding ElementName=VP, Path=CameraController}" />
I'm not sure how to proceed, or whether it's possible. The CameraController exposes a RoutedCommand named "FrontViewCommand" so I thought this syntax would work.
Any ideas?
RobPerkins wrote at 2012-10-02 05:14:
Never mind; exactly those XAML bindings work... if the focus is on the ViewPort. This is the only Viewport in the control, though, so I'm not sure why an automatic CanExecute isn't being routed through...
Need Scaling Help
matthewfrazier wrote at 2010-10-12 17:23:
I'm trying to create a simple tube which I can do fine using this wonderful toolkit. What I'm having a problem with is perspective or scaling. Using the given array list of xyz coordinates I draw my tube BUT I can't make it "look right" in my view. I tried dividing by 1000 but that obviously just keeps the same problem just on a smaller scale. My issue is that my z coordinate is always going to be much larger than my xy. I want to create a tubing path for my users to view so they can see the deviation of the tubing. I can do this with a simple xyz scatter plot in winforms but I want to be able to have the 3D camera control in WPF to give the users more perspective. Any ideas?
private void LoadArrayList() { _x = new ArrayList() { 0, 1.31, 2.71, 3.06, 3.48, 4.69, 6.8, 9.51, 12.37, 15.75, 19.65, 23.76, 30.21, 38.89, 47.77, 56.81, 69.86, 78.23, 86.62, 96.26, 107.4, 117.4, 125.63, 133.91, 142.02, 148.47, 152.32 }; _y = new ArrayList() { 0, 4.76, 7.19, 6.56, 6.76, 8.31, 11.66, 16.48, 22.3, 29.07, 36.08, 43.1, 54.16, 69.78, 85.66, 101.81, 124.95, 140.06, 154.96, 169.97, 185.11, 198.52, 210.58, 222.8, 235.48, 245.87, 251.77 }; _z = new ArrayList() { 0, -463.96, -775.94, -901.94, -964.94, -1027.91, -1091.78, -1155.54, -1217.2, -1279.74, -1342.23, -1404.7, -1497.83, -1622.55, -1747.23, -1872.88, -2060, -2184.81, -2309.64, -2434.37, -2558.96, -2683.84, -2808.99, -2934.12, -3059.22, -3161.49, -3221.08 }; } private void BuildTube() { var pc = new Point3DCollection(); for (int i = 0; i < (_x.Count); i++) { pc.Add(new Point3D((Convert.ToDouble(_x[i]) / 1000.00) * 5, (Convert.ToDouble(_y[i]) / 1000.00) * 5, (Convert.ToDouble(_z[i]) / 1000.00) * 5)); } tube.Path = pc; }
objo wrote at 2010-10-13 08:09:
can you change only the scale of the z-coordinates?
var _x = new List<double> { 0, 1.31, 2.71, 3.06, 3.48, 4.69, 6.8, 9.51, 12.37, 15.75, 19.65, 23.76, 30.21, 38.89, 47.77, 56.81, 69.86, 78.23, 86.62, 96.26, 107.4, 117.4, 125.63, 133.91, 142.02, 148.47, 152.32 }; var _y = new List<double> { 0, 4.76, 7.19, 6.56, 6.76, 8.31, 11.66, 16.48, 22.3, 29.07, 36.08, 43.1, 54.16, 69.78, 85.66, 101.81, 124.95, 140.06, 154.96, 169.97, 185.11, 198.52, 210.58, 222.8, 235.48, 245.87, 251.77 }; var _z = new List<double> { 0, -463.96, -775.94, -901.94, -964.94, -1027.91, -1091.78, -1155.54, -1217.2, -1279.74, -1342.23, -1404.7, -1497.83, -1622.55, -1747.23, -1872.88, -2060, -2184.81, -2309.64, -2434.37, -2558.96, -2683.84, -2808.99, -2934.12, -3059.22, -3161.49, -3221.08 }; var pc = new Point3DCollection(); for (int i = 0; i < (_x.Count); i++) { pc.Add(new Point3D(_x[i], _y[i], _z[i]*0.01)); } tube.IsPathClosed = false; tube.Path = pc;
Assembly not found
dcrysty23 wrote at 2014-08-12 12:45:
"Assembly HelixToolkit.Wpf was not found"
"Assembly HelixToolkit.Wpf.Input was not found"
This is code xaml:
xmlns:helix="clr-namespace:HelixToolkit.Wpf;assembly=HelixToolkit.Wpf"
xmlns:helixInput="clr-namespace:HelixToolkit.Wpf.Input;assembly=HelixToolkit.Wpf.Input"
I put a picture to see that I added the anssembly http://i60.tinypic.com/jp989k.jpg
Helix Toolkit with Kinect -Beginner
shaelyn wrote at 2014-02-28 14:40:
Click to view the photo
I opened the HelixToolkit.Kinect.sln and I didn't make any changes on the coding.
I got these errors when I built the solution. Any idea why is this happens?
HelixViewport3D rendersize change
iLovePasta wrote at 2013-01-20 10:34:
Hi,
is there any possibility to change dimensions of rendered *.jpg file from HelixViewport3D. It seems to me, that it adjusts dimensions of exported image according to current ViewPort size. But I'm not able to change these via none of it' properties like Width, RenderWidth, even a ScaleTransform does not seem to make things happen.
Do You know how is possible to change export sizes? Typical use case - I want to export in, say, 800x600 & 1024#768 resolution etc.
Thanks.
edit: It looks like I'm spamming here:), but it's my second post & again...after trying to resolve the problem like for an hour or so, I wrote here & suddenly after few minutes, I figured out how to do this.
If somebody is interested in future - You have to access HelixViewport3D's property ViewPort, where You shold define rendersize property.
objo wrote at 2013-01-23 20:32:
Thanks for posting the solution to your problem.
I think the Viewport3DHelper.RenderBitmap method should be overloaded with a method where you can specify the width and height.
Did you also notice the "oversampling" multiplier feature in that method? It is good for software rendering!
Customer support service by UserEcho