indicate whereas the line is vertical . for example , line like x = 1 is vertical , in other words parallel to axis y . in this case the a is + / - infinite . concode_field_sep Point _end concode_elem_sep Point _start concode_elem_sep float _a concode_elem_sep boolean _vertical concode_elem_sep float _b concode_field_sep Point getStart concode_elem_sep String toString concode_elem_sep boolean isInside concode_elem_sep float getA concode_elem_sep float getB concode_elem_sep Point getEnd
boolean function ( ) { return _vertical ; }