Scuola di Dottorato di Ricerca in Parodontologia Sperimentale

Appendice C
function CORD=TRIPLANE4(P,Nmin,Nmax,Sec,PmL,PmR,XiL,XiR)
% Section
S=(Sec+1)-(Nmin);
% TRIPLANE computes the sets of the coordinates x and y and z for
% the reformattation of the dicom file of the mandibular plane.
%
% Nmin is the number of minimal section
% Nmax is the number of maximal section
% Sec is the number of section included in Nmin-Nmax range
% PmL,PmR,XiL and XiR are the characterist mandibular points
% as matrix 1x3 with x and y expressed as pixel and z expressed
% as number TAC section
% The Tac section is positioned with frontal side downwards and
% the zero of the axis is downwards in the left side.
% P is the point as a matrix 1x3 (x,y and z coordinates)
% Toti Paolo 29/03/2007 19:07$
Xic=(XiL+XiR)./2;;
Pmc=(PmL+PmR)./2;
center=(Pmc+Xic)./2;
PP=Pmc;
PT=Xic;
% plane equation for three point (jaw plane)
a1=((XiL(:,2)-Pmc(:,2)).*(XiR(:,3)-Pmc(:,3)))-((XiL(:,3)-Pmc(:,3)).*(XiR(:,2)-
Pmc(:,2)));
a2=-((XiL(:,1)-Pmc(:,1)).*(XiR(:,3)-Pmc(:,3)))+((XiR(:,1)-Pmc(:,1)).*(XiL(:,3)-
Pmc(:,3)));
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