CENTER_OF_SIMPS: Calculates the Center of Mass of the Simplicies.
Usage type #1
[center_simp]=center_of_simps(fwd_model);
Usage type #2
[center_simp]=center_of_simps(simp,vtx);
center_simp = The center of mass of simps
[Nelems x 3] (x y z co-ordinates)
(C) 2005 David Stephenson. Licensed under GPL Version 2
$Id: center_of_simps.html 2819 2011-09-07 16:43:11Z aadler $0001 function [center_simp]=center_of_simps(fwd_model, extraparam) 0002 % CENTER_OF_SIMPS: Calculates the Center of Mass of the Simplicies. 0003 % 0004 % Usage type #1 0005 % [center_simp]=center_of_simps(fwd_model); 0006 % Usage type #2 0007 % [center_simp]=center_of_simps(simp,vtx); 0008 % 0009 % center_simp = The center of mass of simps 0010 % [Nelems x 3] (x y z co-ordinates) 0011 % 0012 % (C) 2005 David Stephenson. Licensed under GPL Version 2 0013 % $Id: center_of_simps.html 2819 2011-09-07 16:43:11Z aadler $ 0014 0015 if nargin==1 0016 simp= fwd_model.elems; 0017 vtx = fwd_model.nodes; 0018 else 0019 simp= fwd_model; 0020 vtx= extraparam; 0021 end 0022 0023 x_sum=vtx(simp(:,1),1)+vtx(simp(:,2),1)+vtx(simp(:,3),1)+vtx(simp(:,4),1); 0024 y_sum=vtx(simp(:,1),2)+vtx(simp(:,2),2)+vtx(simp(:,3),2)+vtx(simp(:,4),2); 0025 z_sum=vtx(simp(:,1),3)+vtx(simp(:,2),3)+vtx(simp(:,3),3)+vtx(simp(:,4),3); 0026 0027 x_center=x_sum/4; 0028 y_center=y_sum/4; 0029 z_center=z_sum/4; 0030 0031 center_simp(:,1)=x_center; 0032 center_simp(:,2)=y_center; 0033 center_simp(:,3)=z_center; 0034 0035 0036 0037 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 0038 % This is part of the EIDORS suite. 0039 % Copyright (c) D.R Stephenson 2004 0040 % Copying permitted under terms of GNU GPL 0041 % See enclosed file gpl.html for details. 0042 % EIDORS 3D version XXX 0043 % MATLAB Version 6.5.0.180913a (R13) 0044 % MATLAB License Number: 1560 0045 % Operating System: Microsoft Windows XP Version 5.1 (Build 2600: Service Pack 1) 0046 % Java VM Version: Java 1.3.1_01 with Sun Microsystems Inc. Java HotSpot(TM) Client VM 0047 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%