Point[] qolist=new Point[M];
testpt.x[0]=0.6;
testpt.x[1]=0.7;
r=0.1;
nkd=kd.locatenear(testpt,r,kdlist,M);
nqo=qo.locatenear(testpt,r,qolist,M);
// See if KDtree and Nearpoints found the same number of
// neighbors withing radius r
localflag = (nkd != nqo);