Augmented reality, projection of longitude and latitude on camera view

Question

I am supposed to develop an adroid app that displays a picture on the camera view, when you point the camera in the right direction, representing a point in the sky with given latitude, longitude and altitude. I found an algorithm for doing this here: Perspective Projection in Android in an augmented reality application

But I am having trouble to understand it and implemented it. Does someone have code example on this subject?

Answer 1

这个项目对你有帮助，它被称为BeyondAR