0001 function spec = newMarkerSpecFromTrack( spec, trk ) 0002 0003 trk = reshape(trk,1,length(trk)); 0004 R = max(ceil(abs(diff(trk))))*2; 0005 spec.bbox = [-R,R,-R,R]; 0006 spec.findMarker = @trk2marker; 0007 spec.p0 = [real(trk(1)); imag(trk(1))]; 0008 spec.plan = [real(trk);imag(trk)]; 0009 0010 function [obj,ctr] = trk2marker( obj, ctx, bx ) 0011 mrk = obj.plan( :, ctx.frameNum ); 0012 ctr = mrk - ctx.boxOrigin; 0013