Wikitude

Rectangle 2D ARObect(.png) becomes trapezoid/tilted when altitude is set.

 

I made ARObject with RelativeLocation.

 

    var location = new AR.RelativeLocation(null, 30,20,10); // altitude set 10

    

    overlay = new AR.ImageDrawable(new AR.ImageResource(?test_rectangle.png?,1, {offsetX: 0,offsetY: 0,scale:scale,rotation:rotation});

 

    obj = new AR.GeoObject(location,{

      drawables: {cam: }

     });

 

in this case test_rectangle.png appear as trapezoid like it tilted.

(see tiltedPic.png)

 

If I don't set alltitude

 

    var location = new AR.RelativeLocation(null, 30,10,0);//  altitude set 0

  

It shows as rectangle.

(see verticalPic.png)

 

Is it possible to set altitude and do not make png file tilted??

    

 

This is expected behaviour... You are placing the object 10 meters above user level. Geo-Augmentations are always facing towards the user. This behavior is not customizable yet, unfortunately. You can defina a proper rotate.roll / rotate.tilt attribute to workaround this. 

Hello Andreas Huser

Thanks for your reply.

I calculate the angle of object with distance and height by trigonometric function.

It reminds me of junior high school mathmatics.

Then I put the angle data into tilt of ARObject.

It works perfect!!