How Do I Move A 3D Camera With Buttons (Helix Viewport)

Question

0.00/5 (No votes)

See more:

Hi there, i am trying to move my 3Dcamera with buttons on a single touch display.
For that i added a perspective camera to the helix viewport and bind its properties.

XML

<h:HelixViewport3D.Camera>
                <PerspectiveCamera
                LookDirection="{Binding PerspectiveCamera.LookDirection, UpdateSourceTrigger=PropertyChanged, Mode=TwoWay}"
                Position="{Binding PerspectiveCamera.Position,  UpdateSourceTrigger=PropertyChanged,Mode=TwoWay}"
                UpDirection="{Binding PerspectiveCamera.UpDirection,  UpdateSourceTrigger=PropertyChanged,Mode=TwoWay}"
                />
            </h:HelixViewport3D.Camera>

In the code behind i change these properties like that:

C#

this.PerspectiveCamera.Position = new Point3D(PerspectiveCamera.Position.X, PerspectiveCamera.Position.Y, perspectiveCamera.Position.Z - 50);

My question is, if it is possible to use an animation or the camera controller to change the properties of the camera.

Thanks for your help!

Posted 11-Dec-14 2:48am

3DC#

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Jan Bakker · Accepted Answer · 2014-12-14T23:03:00

If you want to use the keyboard, additional to the buttons,
Add the following to your HelixViewPort:

XML

IsMoveEnabled="False" IsPanEnabled="False" IsRotationEnabled="False"

On your button left click:
(repeat for the other buttons, lookdirection an updirection)

C#

PerspectiveCamera cam = ((PerspectiveCamera)h3d.DefaultCamera);
                h3d.Camera.AnimateTo(new Point3D()
                {
                    X = cam.Position.X - ViewPortScale * 2,
                    Y = cam.Position.Y,
                    Z = cam.Position.Z
                },
                   cam.LookDirection,
                   cam.UpDirection,
                1000);

You need some kind of scale for your model.
(How much does the camera have to move)
Try experimenting with this.

C#

double ViewPortScale = GetViewPortScale(Visual3DHelper.FindBounds(myModelVisual3D, Transform3D.Identity));

C#

private double GetViewPortScale(Rect3D bounds)
        {
            //calculate contour diameter
            double biggestSize = 0;
            if (bounds.SizeX > biggestSize) biggestSize = bounds.SizeX;
            if (bounds.SizeY > biggestSize) biggestSize = bounds.SizeY;
            if (bounds.SizeZ > biggestSize) biggestSize = bounds.SizeZ;
            ViewPortScale = biggestSize / 100;
            return biggestSize / 100;
        }

C#