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Extend Line and get it's origin


  
 
 
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shine771
Senior Member
Join Date: Jun 2007
Old 03-03-2009 , 12:11   Extend Line and get it's origin
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I have 2 origins, i created a beam between them(line). I want to extend the line, and get it's end origin. Example image:
[IMG]http://img91.**************/img91/6706/imgm.jpg[/IMG]
The black dots are origins i have. The red dot is the origin what i need. I want to know the formula or a function how to do this.

Thanks.
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