private void computeSnaps(Collection segStrings,Collection snapPts){
  for (Iterator i0=segStrings.iterator(); i0.hasNext(); ) {
    NodedSegmentString ss=(NodedSegmentString)i0.next();
    computeSnaps(ss,snapPts);
  }
}

private void computeSnaps ( Collection segStrings , Collection snapPts ) { for ( Iterator i0 = segStrings . iterator ( ) ; i0 . hasNext ( ) ; ) { NodedSegmentString ss = ( NodedSegmentString ) i0 . next ( ) ; computeSnaps ( ss , snapPts ) ; } }
computes nodes introduced as a result of snapping segments to snap points ( hot pixels )
