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Hello all I successfully created application : Keyboard controlled car in augmented reality Like the BMW Z4 http://www.bmw.co.uk/bmwuk/augmented_re ... rce=vanity
But Now i want to COntroll my Car by reading the orientation of a new AR marker ?

With Keyboard it´s like this :
// Determine rotation amount from input
Vector2 rotationAmount = new Vector2(0, 0);
if (keyboardState.IsKeyDown(Keys.Left))
{
rotationAmount.X = .1f;
}
if (keyboardState.IsKeyDown(Keys.Right))
{
rotationAmount.X = -.1f;
}
if (keyboardState.IsKeyDown(Keys.Up))
{
//rotationAmount.Y = -1.0f;
thrustAmount = .0001f;
}
if (keyboardState.IsKeyDown(Keys.Down))
{
//rotationAmount.Y = 1.0f;
thrustAmount = -.0001f;
}
Have you any idea how can i read the orientation of a new AR marker to COntroll my car Just left and right ??

Hello,

I think this article tells how to estimate orientation of an AR marker.

thanx
I want just to read the 4 corners point of the marker and i want to obtain the position of the camera in the marker's coordinate system... i think so can i have the X and Y Coordinate to move my car left or Right...

But how can i do it ??? have you a Source Code to do it please ?

aymen_benk wrote:have you a Source Code to do it please ?

Can you read the article? Can you see there is sample application and source code given?