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Line crossing in rectangle

Sujina S

12y1.7kC#

Hi friends

If each side of the rectangle is a line segment ,and the user drawn portion is a line segment, then how to check whether any line overlap or cross with another one.Please help me to find a solution.

Thanks
Sujina

2 Replies

Know the answer? Post it — somebody with the same question will find it here.

Jignesh Trivedi12y ago
hi,
Hope you have all four line equation,
if you have than you can use line intersection formula and find out whether the line is intersecting ?
Please refer for formula
http://www.geometryatlas.com/entries/41
in this formula if m-n is zero than line is not intersecting..
hope this will help you.
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Jaganathan Bantheswaran12y ago
Hi,

You can check these article.

http://www.andybeaulieu.com/Home/tabid/67/EntryID/160/Default.aspx

And this post
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