Dear Eric,<div><br></div><div>it might be worth looking at the output functions for OpenDX (write_dx()). There, at least connectivity between patches is recovered, such that streamlines could be computed on non-adaptive meshes.</div>
<div><br></div><div>Unfortunately, nobody cared for OpenDX anymore, and it was never extended to adaptive meshes.</div><div><br></div><div>As for discontinuous functions: averaging.</div><div><br></div><div>Best,</div><div>
Guido</div><div class="gmail_extra"><br></div>