overlaps() with only two polyshap objects

In my problem, I have a car and multiple obstacle polyshape objects, and I want to determine if the car is overlapping only one of the obstacles. I found out that the `overlaps` command is very expensive, perhaps because it also checks if the obstacles overlap each other (a check that I don't need!)

if I do something like:

table = overlaps([car obstacle3 obstacle2])

I will get a matrix that shows me all of the possible overlaps with those 3 shapes.

I'm looking for a simple solution that will give me a true or false value - if the car object overlaps one of the obstacles (or more).

Thanks in advance!

Answer 1

[Matt J]

Use the two-argument form,

Obstacles=[obstacle3 obstacle2];

criterion = sum( overlaps(car,Obstacles) ) == 1 ; %true if one and only one obstacle intersected

[Alon Osovsky]

Not exactly what I asked for, but I didn't know that there was a two-argument form. That helped - thanks a lot!