<div dir="ltr"><div><font face="tahoma, sans-serif">Ciao Lorenzo,</font></div><div><font face="tahoma, sans-serif">thank you for your reply.</font></div><br><div class="gmail_quote"><div dir="ltr">On Wed, 16 Jan 2019 at 17:29, Lorenzo Paulatto <<a href="mailto:paulatz@gmail.com" target="_blank">paulatz@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><br>
<br>
On 16/01/2019 08:31, Fabrizio Cossu wrote:<br>
> I can specify the coordinates either in <br>
> cartesian or in crystallographic mode, and that ph.x gives in output <br>
> q-points in crystallographic coordinates, and so does matdyn.x;<br>
<br>
Not really, ph and matdyn give and read (by default) q-point in <br>
cartesian coordinates in units of 2pi/alat (alat is usually celldm(1)).<br></blockquote><div> </div><div><font face="tahoma, sans-serif">I apologise for my wrong statement. I thought I read that 'read' and 'write' formats did not coincide. Instead, as it actually works makes perfect sense, as many plotting tools would work out-of-the-box with cartesian.</font></div><div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<br>
matdyn can read points in crystallographic coordinates with the switch <br>
q_in_cryst_coord=.true.<br></blockquote><div><br></div><div><font face="tahoma, sans-serif">Yeah, I know that. I erroneously switched to ".true." in view of what I erroneously thought.</font></div><div><br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<br>
> Analogously as above, but for the electronic band-structure (basically, <br>
> I'd like to plot the Fermi surface, but obtaining the q-points in <br>
> cartesian coordinates in units of 2π/a).<br>
I think this is already the case, do you have any specific example where <br>
you think it is not?<br></blockquote><div><br></div><div>Ditto. I'll review the inputs, but I haven't run any calculation so far. I'll check tutorials first and, if really needed, I'll open a new post.</div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<br>
-- <br>
Lorenzo Paulatto - Paris<br>
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