<map id="structs" name="structs"> <area shape="rect" id="node1" href="$group__usrp.html" title="USRP" alt="" coords="619,15,677,44"/> <area shape="rect" id="node2" href="$group__block.html" title="All C++ blocks that can be used in GR graphs are listed here or in the subcategories below..." alt="" coords="7,68,279,97"/> <area shape="rect" id="node4" href="$group__ofdm__blk.html" title="OFDM Blocks" alt="" coords="596,68,700,97"/> <area shape="rect" id="node5" href="$group__usrp2.html" title="USRP2" alt="" coords="615,133,681,163"/> </map>