Request: Cone of Sight using triggers

Request: Cone of Sight using triggers

Could some1 tell me how to limit the sight of a unit (Cone of sight), and so they can not see behind bushes and stuff or just make a quick map that shows me how, thanks.

That would be tricky stuff

umm one unit, or many, one unit is easy

I need it basically so I can have several enemy units have a cone of sight, there will be only person they can see though.

cone of sight?

cone of sight would be hard but how not to see through bushes and similar is much easier.

first question is: what do you want the units not to see through(list plz)?

second is: are air units suposed not to see through it too?

What are you trying to say? BE SPECIFIC!

What, exactly, do you want? 1.Do you want it so it looks like this that a unit can see?:
.........../
........../
........./
......YOU)......O============
.........\
..........\.....O
...........\.....\\
..................\\
2.Or something like this?:
......___________
...../-----------\
..../-------------\
.../---------------\
..|------(YOU)-O====|
..|-----------------|
...\-----O---------/
....\---//--------/
.....\_//________/

1 I can show you, 2 is pretty obvious using pathing blockers. 1 will require a limited movement space, though. If you have more than one unit, 1 is impossible. If you have 1 unit, it will require a camera and an extra unit. I will show you how to do 1 with a map, but if you are asking for 2, it's pretty much self-explainitory.
BTW: Sorry for the bad images, I couldn't use spaces.