<html><head></head><body><div style="color:#000; background-color:#fff; font-family:times new roman, new york, times, serif;font-size:16px"><div id="yui_3_16_0_1_1457942879283_2478">Hello,</div><div id="yui_3_16_0_1_1457942879283_2508"><br></div>I search more informations to understand the real use datas S-57. I would like to obtain informations on edges, nodes and vertex for each object, but I can't see this data.<br><br>I understand that is :<br><br> RETURN_PRIMITIVES=ON<br> LNAM_REFS=ON<br> RETURN_LINKAGES=ON<br><br>But it doesn't work.<br><br>Anybody could it help me?<br>best regards<br><div id="yui_3_16_0_1_1457942879283_2573" dir="ltr">Ted</div></div></body></html>