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compute coordinates of points belonging to a line perpendicular to   Message List  
Reply | Forward Message #458 of 1096 |
Re: [geometry] compute coordinates of points belonging to a line perpendicular to another

P1 and P2 lie along the line y=y2, since the abscissae are different but ordinates are the same.  The lines perpendicular to the two points are x=x1 and x=x2, respectively.
 
Carl Adkins
----- Original Message -----
From: Adi
Sent: Friday, September 02, 2005 6:39 PM
Subject: [Norton AntiSpam] [geometry] compute coordinates of points belonging to a line perpendicular to another

Hi

I have a line from point P1(x1,y2) to P2(x2,y2).
I want to draw perpendiculars to P1 and P2.
How can I compute every point belonging to any of the perpendiculars?


Sat Sep 3, 2005 3:58 am

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carlito1942
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Forward 		Message #458 of 1096 |
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Hi I have a line from point P1(x1,y2) to P2(x2,y2). I want to draw perpendiculars to P1 and P2. How can I compute every point belonging to any of the... 		Adi
ady_tiganus
Offline Send Email 		Sep 2, 2005
11:39 pm

P1 and P2 lie along the line y=y2, since the abscissae are different but ordinates are the same. The lines perpendicular to the two points are x=x1 and x=x2,...
Carl Adkins
carlito1942
Offline Send Email 		Sep 3, 2005
3:58 am

... different but ordinates are the same. The lines perpendicular to the two points are x=x1 and x=x2, respectively. ... points belonging to a line...
Adi
ady_tiganus
Offline Send Email 		Sep 6, 2005
1:38 am

First, determine the slope of line P1P2, which is (difference of ordinates)/(difference of abscissae)=(y2-y1)/(x2-x1). A line perpendicular to this line will...
Carl Adkins
carlito1942
Offline Send Email 		Sep 6, 2005
4:18 am
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