java - Is a point between two points? -


after googling , looking on stack long time, i've managed find methods determining whether or not point falls on line connects 2 points. this, unfortunately, isn't need.

please see image @ end of question. apologize in advance terrible picture, gets point (get it?) across.

i need create 2 perpendicular lines 1 joins points x , y. need intersect perpendicular line @ points x , y. need tell if point z appears between 2 lines or not.

any appreciated. time!

point graph.

compute angle xyz , yxz. if either > 90 outside.


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