Recent content by huddi

okay, but which projection matrix (or projection method) is used in orbiter?

Hi! I'm trying to figure out how the simulation environment displays the 3d-world on the (planar) screen. Is it just the way a pinhole camera works? Thanks! Huddi

ahh this explains why i didn't find anything on this :). thanks for the tip with the mfd. maybe i can derive things from there.

Could you tell me where to find a tutorial how to do this? Thanks!

Hi! I've created my own VESSEL2 vessel. I would like to put the clbkDrawHUD function into a Plugin so that other Vessels can use it as well. Is this possible? Thanks! Huddi

That was just a mistake in the example. I've got x=orbitdirection y=right z=down I used the exact equations that are given. Vallado uses: x= up y=orbitdirection z=left So I put x=-z y=x z=-y and back again. This should work?!

Thanks, still this is not it... that was a drawingproblem :)

Okay, so there must be something wrong with my calculations- but I just cannot find the mistake :/. Maybe the coordinate system?! I've got x: in Orbitvelocity direction y: crossproduct(x,z) z: points towards earth This is my code to that...

Hi, I'm trying to program a pathprediction for a docking maneuver situation. The Hill's equation (also known as Clohessy-Wiltshire) should - as I understand - exactly do this. This is how it is in Orbiter: -target (blue dot) is in a circular orbit -interceptor (red dot) about 500m behind...

Thanks! This is right The function is called oapiGetVesselCount() Thanks too!

Hi, if I validly call oapiGetVesselByIndex everything is all right. But if there is no Object for the Index entered, the program crashes. this try { ... } catch(...){}; does not work. What else can I do? Thanks, Huddi

Dragonfly uses its own orbitersdk.h - it's in the Dragonfly folder.

I tried to just change that point in the code. But this didn't help much. I think you also have to change the orbitersdk.h to the one as eg deltaglider has it. then dragonfly.cpp compiles, but the whole project cannot be build. I've got no idea how to solve this. Isn't there a function in the...

Hi, I've got some questions about the Dragonfly sample. 1. This Vessel is not Vessel2 derived. Is there an easy way to change it to vessel2? 2. I can't find any function for the HUD. Just creating the Function clbkDrawHUD compiles fine, but has no result. 3. is there a reason for the...

Thanks a lot!! This works - even with the orbitplane. But did you find out why it didn't work before? edit: found it... was nothing about the vesselstatus structure. tmul uses the transposed matrix. so you dont go from local to global, but the other way