I like the idea of using all radar parameters.
But using angle and focus might be confusing.
Maybe if the search function has an orientation of it's own,
direction("search position") could be relative 0 angle for search.
So it could be used and calculated in terms of right angles.
Radius was just max parameter by a different name.
Edit: Or just leave out angle and focus, replaced by position. search(cat, pos, min, max, sens, filter);
But using angle and focus might be confusing.
Maybe if the search function has an orientation of it's own,
direction("search position") could be relative 0 angle for search.
So it could be used and calculated in terms of right angles.
Radius was just max parameter by a different name.
Edit: Or just leave out angle and focus, replaced by position. search(cat, pos, min, max, sens, filter);