<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Dear all,<div class=""><br class=""></div><div class="">I would like to know how to use RangeSearch class to search neighbors of points in a Cartesian domain with <b class="">periodic boundary conditions</b>. The boundary conditions along X and Y axis are periodic, but rigid along Z axis.</div><div class=""><br class=""></div><div class="">Previously I used RangeSearch<EuclideanDistance, BinarySpaceTree<HRectBound<2>, RangeSearchStat> > for points in the spherical domain.</div><div class=""><br class=""></div><div class="">Thanks in advance!</div><div class=""><br class=""></div><div class="">Best regards,</div><div class="">Li</div></body></html>