Approach info in Vizzy

I tagged you on an unlisted. @sflanker

After our discussion in Discord, I think what you are looking for is the following:

For a given target:

1. How many seconds until the next closest approach between the current craft and that target
2. A PCI vector for the position of the target relative to it's parent at the time of closest approach
3. A PCI vector for the position of the current craft relative to it's parent at the time of closest approach

The last one gets a little complicated because it begs the question: from what origin should this vector be. Should it be the crafts current sphere of influence parent? Its parent at the time of the closest approach? Or the target itself? I'm tempted to go with the latter because that is the most useful piece of information (how close will you get to your target). And the others can probable be derived from that.

If this is indeed what you are looking for then I agree that this would be a useful addition to Vizzy. It is theoretically possible now, but it is not easy.

( see Sflanker answer, I have nothing to add without knowing precisely what info you are looking for :) )

You can use vizzy to detect when you enter the sphere of influence of a specific planet although you have to use on enter [planet] SOI event rather than just a wait until [condition] instruction. You can also determine your distance to the planet using a combination of the planet [name] [Solar Position] and nav [Position] craft information expressions (It's a little complicated because you have to take your current planet's solar position, add your craft position, and then subtract that from the target planet's solar position). So I am also still unclear on what you are looking for.

I meant like actual approach info, like you could do, Wait Until - Approach (Cylero) or something, with the parentheses the part that you can change. @zeropol

Vizzy already permit to display "approach info", if I understand what you mean. Vizzy have craft and target position, velocity vectors, from which a lot of things can be calculated and displayed on screen.
Have you an example of what Vizzy can't display and we need ? ( Approach info is not precise, that's why I ask you :) )