Hello,

I'm trying to get the position of my camera using right now two differents
markers. I consider one of them is the one at the 'origin' and the second
one is just shifted from the fisrt one in x=a, y=b and z=c distances ( this
is, a matrix 'Tr' with rows (1,0,0,a),(0,1,0,b) and (0,0,1,c)). If I'm
visualizing only the second marker I want to get the camera position related
to my first marker, I mean, once I get the matrix 'Tcm' referenced to the
marker I'm watching (the 2nd one) I want to get the matrix as if I were
watching the first one. I'm just multiplying the Tcm matrix, with the one
I've defined in advanced 'Tr' for the second marker but it seems not to
work....what am I missing? does anybody knows how to do it?

thank you in advanced!!

Hi there,
Is your matrix 'Tr'a 4*4 one with rows (1,0,0,a),(0,1,0,b),(0,0,1,c)and (0,0,0,1)?

Good luck!



-----  Original Message  -----
From: BSS 
To: artoolkit@h .................. 
Subject: getting position to a reference marker
Sent: Wed May 12 04:15:45 CST 2004

> Hello,
> 
> I'm trying to get the position of my camera using right now two differents
> markers. I consider one of them is the one at the 'origin' and the second
> one is just shifted from the fisrt one in x=a, y=b and z=c distances ( this
> is, a matrix 'Tr' with rows (1,0,0,a),(0,1,0,b) and (0,0,1,c)). If I'm
> visualizing only the second marker I want to get the camera position related
> to my first marker, I mean, once I get the matrix 'Tcm' referenced to the
> marker I'm watching (the 2nd one) I want to get the matrix as if I were
> watching the first one. I'm just multiplying the Tcm matrix, with the one
> I've defined in advanced 'Tr' for the second marker but it seems not to
> work....what am I missing? does anybody knows how to do it?
> 
> thank you in advanced!!
>