Guruguhan N wrote: > Hi All, > I am new to this group and recently started using Perl. I would like to > know whether it is possible to fit a > quadrilateral if four points are known in 3-D space ? if so, I would like to get > some idea about the algorithm to do that in > Perl. Any help is appreciated.
'Fit a quadrilateral' doesn't mean much to me I'm afraid. A quadrilateral is a plane figure with four sides - nothing to do with 3D space unless your four points happen to be coplanar. If you're trying to work out if four points /are/ coplanar then work out the equation of the plane that the first three form and then see if the fourth also fits in this equation. If you mean a quadrahedron - a 3D figure with four vertices (and four plane faces) then the coordinates of four points fully defines the quadrilateral, so what do you want to do with it next? Working things out in spatial geometry comes down to doing sums. Rest assured that Perl is good at doing sums: it just needs to know what the sums are. Rob -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
