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Dear Fabrizio
<div class="">The zaxis in the projection input block should be specified in Cartesian coordinates so 1,1,1 corresponds to 1\hat{x} + 1\hat{y} + 1\hat{z}, where \hat{x}, \hat{y} and \hat{z} are the Cartesian unit vectors. </div>
<div class="">Best wishes,</div>
<div class="">Arash</div>
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—<br class="">
Professor Arash Mostofi — <a href="http://www.mostofigroup.org" class="">www.mostofigroup.org</a><br class="">
Director, Thomas Young Centre @Imperial<br class="">
Imperial College London</div>
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<div class="">On 6 Sep 2021, at 07:53, Fabrizio Cossu <<a href="mailto:cossu@kangwon.ac.kr" class="">cossu@kangwon.ac.kr</a>> wrote:</div>
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<div style="margin-top: 0px; margin-bottom: 0px;" class=""> Dear Wannier90 users (and developers),</div>
<div style="margin-top: 0px; margin-bottom: 0px;" class="">I have a very simple question: in re-setting the direction of the z axis in<span class="Apple-converted-space"> </span><a href="http://seedname.win/" class="">seedname.win</a><span class="Apple-converted-space"> </span>(within
the projection "environment"), shall we use cartesian units or lattice units?</div>
<div style="margin-top: 0px; margin-bottom: 0px;" class="">For example, if we have a trigonal cell, and we want to set the direction of the z axis to (<b class="">a1</b>,<span class="Apple-converted-space"> </span><b class="">a2</b>,<span class="Apple-converted-space"> </span><b class="">a3</b>)
- the lattice vectors - shall we use</div>
<div style="margin-top: 0px; margin-bottom: 0px;" class="">z=1,1,1</div>
<div style="margin-top: 0px; margin-bottom: 0px;" class="">or</div>
<div style="margin-top: 0px; margin-bottom: 0px;" class="">z=0.5,0.866,1</div>
<div style="margin-top: 0px; margin-bottom: 0px;" class="">?</div>
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<div style="margin-top: 0px; margin-bottom: 0px;" class=""> Thank you in advance for your answer(s).</div>
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<div style="margin-top: 0px; margin-bottom: 0px;" class=""> Kind regards,</div>
<div style="margin-top: 0px; margin-bottom: 0px;" class=""> Fabrizio Cossu</div>
<div style="margin-top: 0px; margin-bottom: 0px;" class="">--</div>
<div style="margin-top: 0px; margin-bottom: 0px;" class=""> department of physics,</div>
<div style="margin-top: 0px; margin-bottom: 0px;" class=""> Kangwon National University (Chuncheon branch)</div>
<div style="margin-top: 0px; margin-bottom: 0px;" class=""> Chuncheon, Gangwon-do</div>
<div style="margin-top: 0px; margin-bottom: 0px;" class=""> Republic of Korea<br class="">
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