Resolving On-Screen Pointer to 3D Coordinates

[Antipodes]

Hello Folks.

I'm completely new here and new to the world of modding (though I have been playing KSP for a few years).  I am developing my first mod, which I expect will be ready just in time for 1.1 to break it.  But I am already looking towards future enhancements that I may want to make.

One thing I would like to do is, while viewing the KSC in the SpaceCenter scene, I would like to determine the latitude, longitude and altitude of whatever is currently under the mouse pointer.  I tried looking online and through the object browser, but I could not find anything that looked like it would give me this sort of information.  I know it must be possible (to some degree) because Squad is able to tell which building you click on in that screen.

Any advice would be greatly appreciated.

[Crzyrndm]

You need to get the active camera/viewport (Camera.main from memory) and use Camera.WorldToScreenPos(Vector3 worldLoc) to translate things to screen coordinates

Edited January 21, 2016 by Crzyrndm

[Antipodes]

Thank you. Crzyrndm. I will try that out tonight and see how it goes. 

[sarbian]

hum.  I think the OP asked for the reverse

RaycastHit hit;
Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
        
if (Physics.Raycast(ray, out hit)) {
     Vector3 pos = hit.transform.position;

There are more than one camera in KSP. Not sure if Camera.main is always the right choice (I think there is one in ScaledScpace  too )

[Antipodes]

Sarbian,  thank you. This does look more like what I was searching for. 

Wow! I ask a question at noon on a workday and I get  answers with code examples before I leave for home! The KSP community is great!!! 

Edited January 21, 2016 by Antipodes

[Crzyrndm]

6 hours ago, sarbian said:

 I think the OP asked for the reverse

-.-...

Edited January 22, 2016 by Crzyrndm