code: public void add(MultiVertexGeometry src, int srcFrom, int srcTo) {
  		m_impl.add((MultiVertexGeometryImpl) src._getImpl(), srcFrom, srcTo);
  	}
docs: Appends points from another multipoint at the end of this multipoint.
  
  @param src
  The mulitpoint to append to this multipoint.
  @param srcFrom
  The start index in the source multipoint from which to start
  appending points.
  @param srcTo
  The end index in the source multipoint right after the last
  point to be appended. Use -1 to indicate the rest of the
  source multipoint.