how to calculate the distence ?

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how to calculate the distence ?

 
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  #1
Jan 30th, 2008
im doin my final year project nw..its abt map...how i want to calculate distence between 2 points by clicking on that point1 and drag until another point2.
i realy dun hv idea to do..realy need help from your guyz..thank you
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Re: how to calculate the distence ?

 
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Jan 30th, 2008
You'll need to track mouse down and mouse up events, then use the Pythagorean theorem.

Hope this helps.
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Re: how to calculate the distence ?

 
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Feb 14th, 2008
ya..but i dont know to make it in vb..
can give example code ..?
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Re: how to calculate the distence ?

 
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Feb 14th, 2008
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Originally Posted by shinchan View Post
im doin my final year project nw..its abt map...how i want to calculate distence between 2 points by clicking on that point1 and drag until another point2.
i realy dun hv idea to do..realy need help from your guyz..thank you
can help me in the coding by giving example coding.
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Re: how to calculate the distence ?

 
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  #5
Feb 14th, 2008
No, shinchan, we won't do your homework for you. If your professor has asked you to do something with tools he has not taught you, go see the department chair or the ombudsman. Otherwise, if you haven't paid enough attention in class to pass the assignment then you are going to fail it. Sorry.

If you try to do it, and post here with what you have got, and where it goes wrong, etc. we will help you.
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Re: how to calculate the distence ?

 
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Feb 16th, 2008
Count me in Duoas, yeah he didn't even give a try...
A conclusion is the place where you got tired of thinking.
http://www.martin2k.co.uk/forums/index.php?showforum=4
http://www.a1vbcode.com/a1vbcode/vbforums/Forum3-1.aspx
http://www.developerfusion.co.uk/for...orum&ForumID=4
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Re: how to calculate the distence ?

 
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Feb 16th, 2008
Count me in Duoas, yeah he didn't even give a try...
A conclusion is the place where you got tired of thinking.
http://www.martin2k.co.uk/forums/index.php?showforum=4
http://www.a1vbcode.com/a1vbcode/vbforums/Forum3-1.aspx
http://www.developerfusion.co.uk/for...orum&ForumID=4
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Re: how to calculate the distence ?

 
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  #8
Feb 18th, 2008
try to use this sample code

vb Syntax (Toggle Plain Text) 
  1. Public Function DistanceBetween(ByVal X1 As Single, ByVal Y1 As Single, ByVal X2 As Single, ByVal Y2 As Single) As Single
  2.   ' Calculate the distance between two points, given their X/Y coordinates.
  3.  
  4.   ' The short version...
  5.   DistanceBetween = Sqr((Abs(X2 - X1) ^ 2) + (Abs(Y2 - Y1) ^ 2))
  6.  
  7.   ' The longer version, to illustrate how it works...
  8.   Dim Horizontal As Single, Vertical As Single
  9.   Horizontal = Abs(X2 - X1)
  10.   Vertical = Abs(Y2 - Y1)
  11.   DistanceBetween = Sqr((Horizontal * Horizontal) + (Vertical * Vertical))
  12. End Function
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