KX = -y(A)y(B)
KY = y(B)(x(V)-x(A))
KZ = y(A)(x(B)-x(V))
KO = x(V)y(A)y(B)

KX' = -y(A')y(B')
KY' = y(B')(x(V')-x(A'))
KZ' = y(A')(x(B')-x(V'))
KO' = x(V')y(A')y(B')

Plano alfa -->  x*KX + y*KY + z*KZ + KO = 0
Plano beta -->  x*KX' + y*KY' + z*KZ' + KO' = 0




PROYECCIÓN HORIZONTAL RECTA INTERSECCIÓN
ELIMINAR Z

x*KXKZ' + y*KYKZ' + z*KZKZ' + KOKZ' = 0
x*KX'KZ + y*KY'KZ + z*KZ'KZ + KO'KZ = 0

resetando Y CAMBIANDO EL SIGNO A y:
x*((-y(A)y(B))y(A')(x(B')-x(V')) - (-y(A')y(B'))y(A)(x(B)-x(V))) 
- y*(y(B)(x(V)-x(A))y(A')(x(B')-x(V')) - y(B')(x(V')-x(A'))y(A)(x(B)-x(V))) 
+ x(V)y(A)y(B)y(A')(x(B')-x(V')) 
- x(V')y(A')y(B')y(A)(x(B)-x(V)) = 0



PROYECCIÓN VERTICAL RECTA INTERSECCIÓN
ELIMINAR Y

x*KXKY' + y*KYKY' + z*KZKY' + KOKY' = 0
x*KX'KY + y*KY'KY + z*KZ'KY + KO'KY = 0

restando Y CAMBIANDO z POR y:
x*((-y(A)y(B))y(B')(x(V')-x(A')) - (-y(A')y(B'))y(B)(x(V)-x(A))) 
+ y*(y(A)(x(B)-x(V))y(B')(x(V')-x(A')) - y(A')(x(B')-x(V'))y(B)(x(V)-x(A))) 
+ x(V)y(A)y(B)y(B')(x(V')-x(A')) 
- x(V')y(A')y(B')y(B)(x(V)-x(A)) = 0




NO UTILIZADO
Traza horizontal alfa
x*(-y(A)y(B)) - y*y(B)(x(V)-x(A)) + x(V)y(A)y(B) = 0
Traza vertical alfa
x*(-y(A)y(B)) + y*y(A)(x(B)-x(V)) + x(V)y(A)y(B) = 0

Traza horizontal beta
x*(-y(A')y(B')) - y*y(B')(x(V')-x(A')) + x(V')y(A')y(B') = 0
Traza vertical beta
x*(-y(A')y(B')) + y*y(A')(x(B')-x(V')) + x(V')y(A')y(B') = 0