Check whether a line-segment intersects the perpendicular line draw from a particular point?
Greetings all,

Please refer to the image at :
http://i36.tinypic.com/35bs8i0.jpg

As shown in the figure ,I have set of line segments.I want to check which line-segments intersects with the perpendicular line drawn from a given point (x0,y0).

(Eg: AB pass the check and BC does not).

Only information I've got is two points of the line-segment- (x1,y1),(x2,y2) and the target point (x0,y0).

Is it possible to derive a simple formula using these three points?

Thanks in advance.

umanga 
Check whether a line-segment intersects the perpendicular line draw from a particular point?
===

Greetings all,

Please refer to the image at :
http://i36.tinypic.com/35bs8i0.jpg

As shown in the figure ,I have set of line segments.I want to check which line-segments intersects with the perpendicular line drawn from a given point (x0,y0).

(Eg: AB pass the check and BC does not).

Only information I've got is two points of the line-segment- (x1,y1),(x2,y2) and the target point (x0,y0).

Is it possible to derive a simple formula using these three points?

Thanks in advance.

umanga 