<html><head></head><body><div class="ydp879c7eddyahoo-style-wrap" style="font-family:verdana, helvetica, sans-serif;font-size:16px;"><div dir="ltr" data-setdir="false">Hello there</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Ia am involved in little project using NASA PMARC14 software, and recently noticed some Plot3D capabilities which are aso build in GMSH. However I have noticed that GMSH ( version 4.5.6 ) perfectly read p3d files and exporting them to NASTRAN format bdf, but when tried to convert very same file back to Plot3D format, error message pops up .</div><div dir="ltr" data-setdir="false">Error reads " Warning : No structured grid to save " and creates empty p3d file.</div><div dir="ltr" data-setdir="false">Appears that software does not recognizes its own routine so please advise, do I am doing something wrong or software is not capable of such as transformation.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Cheers thanks for response and stay safe.</div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false"><br></div><div dir="ltr" data-setdir="false">Miro </div></div></body></html>