问题
how to visualise an arrow pointing to a certain position while I change my location.
I mean, while holding my hand-set and moving around I want that arrow to point to a given latitude and longitude
Note: pich and yaw has already been calculated.
Regards,
回答1:
I've actually just been working on an app to do this as a learning exercise, altho I don't use Pitch and Yaw, just Orientation.
It's at https://github.com/jarofgreen/FindCoords - GPL open source and an apk file available.
Screenshot at https://github.com/jarofgreen/FindCoords/blob/master/screenshot.png
来源：https://stackoverflow.com/questions/8678415/visualising-an-arrow-given-pich-and-yaw