How can I get if some functions are intercepted? having the equation of the line

i need to know only if the functions are intercepted, i dont wanna know the point. Something like if the functions really are intercepted increment a counter. this includes vertical lines.

[Walter Roberson]

improfile(). If any of the output values are less than a threshold then a black line was touched.

[Erick Guzman]

Hi Walter, thanks so much.

But, i need to know how many "walls" are crossed. can i do that with improfile?

[Erick Guzman]

thank you so much @Walter Roberson this was so helpfull.

Answer 1

[KSSV]

You can use this function InterX. https://in.mathworks.com/matlabcentral/fileexchange/22441-curve-intersections

If you get intersection point then they intersect. If intersection point is empty, they don't intersect.

[Erick Guzman]

hey, im trying but from wich version is it available?

[Walter Roberson]

Versions of the function are available back to r2008b. However you have to install it. Search for it using Add-on Explorer

[Erick Guzman]

thank a lot both