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September 27th, 2011, 12:39 AM  #1 
Newbie Joined: Sep 2011 Posts: 1 Thanks: 0  3d orthogonal projection on a plane
hi, I have a point in 3d P(x,y,z) and a plane of view Ax+By+Cz+d=0 . A point in plane is E.Now i want to project that 3d point to that plane and get 2d coordinates of the projected point relative to the point E. P = 3d point p.s. what i am doing right now is to get nearest point in plane from point P.then i subtract that point to E.I suspect that this is right ??? please help me. Thanks. 
September 27th, 2011, 05:35 AM  #2 
Math Team Joined: Nov 2010 From: Greece, Thessaloniki Posts: 1,989 Thanks: 133 Math Focus: pre pre pre pre pre pre pre pre pre pre pre pre calculus  Re: 3d orthogonal projection on a plane [color=#000000]The vector is perpendicular to the plane , use the equation of the parametric line and compute where this line intersects the ? plane.[/color] 

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