User selectable Lines

[kevinheeney]

(VB.NET)

I have for some time been trying to figure out how to create user selectable lines. If anybody could point me in some direction.

I have tried many things such as making lines claim regions of the picturebox but if the user draws a line near that one and tries to click, it does not know which line they are licking.

What I am looking for is simple vector style lines, such as what filemaker uses, Flash or pretty much any application that has lines(except MSPaint).
I want to be able to select a line after drawing it, and then delete it or what not.



KO

 

[Divil]

You could calculate the positions of the pixels that make up the line and follow them, comparing the mouse cursors position to see if its within a set distance from that pixel.

 

[ballisticnylon]

Heres a good article on the subject. Its in C#, but hopefully youll be able to figure out the basic idea:

http://www.bobpowell.net/hittestlines.htm