realpts

PURPOSE

realpts method - returns 3xN XYZ matrix in mm

SYNOPSIS

function [pts, vals] = realpts(o,sp)

DESCRIPTION

 realpts method - returns 3xN XYZ matrix in mm

 $Id$

CROSS-REFERENCE INFORMATION

This function calls:

isempty overloaded isempty method for mardo object
voxpts voxpts method - voxels within a box in given space
voxpts voxpts method - returns 3xN ijk matrix in voxels
voxpts voxpts method - returns 3xN ijk matrix in voxels
voxpts voxpts method - voxels within a sphere in given space

This function is called by:

c_o_m c_o_m method - calculates unweighted centre of mass
getdata getdata method - fetches time series data for ROI from images
mars_display_roi utility routines for display of ROIs in graphic window

SOURCE CODE

0001 function [pts, vals] = realpts(o,sp)
0002 % realpts method - returns 3xN XYZ matrix in mm
0003 %
0004 % $Id$
0005 
0006 if nargin < 2
0007   error('Need space definition to find voxels');
0008 end
0009 [pts vals] = voxpts(o, sp); 
0010 
0011 if ~isempty(pts)
0012   pts = sp.mat * [pts; ones(1, size(pts,2))];
0013   pts = pts(1:3,:);
0014 end