<html><body><div>I have no time to explore it right now, but there is flag arch of point station. What about to create dummy data nosurvey stations with flag arch and define excavation grid by that?</div><div><br data-mce-bogus="1"></div><div>m.s.</div><div><br>On Sep 27, 2017, at 11:44 AM, Andrew Atkinson via Therion <therion@speleo.sk> wrote:<br><br></div><div><blockquote type="cite"><div class="msg-quote"><div class="_stretch"><span class="body-text-content">I've not used it myself but there is an option<br><br> grid-angle <value> <units> ▷ specifies the magnetic grid angle<br>(declination against grid north).<br><br>page 19 of the thbook for details<br><br>Andrew<br><br><br>On 25/09/17 06:12, Steven Tucker via Therion wrote:<br><blockquote type="cite" class="quoted-plain-text">Good day everyone,</blockquote><blockquote type="cite" class="quoted-plain-text"><br></blockquote><blockquote type="cite" class="quoted-plain-text">I am in the process of remapping a large cave in which there are various</blockquote><blockquote type="cite" class="quoted-plain-text">archaeological / paleontological excavation areas.</blockquote><blockquote type="cite" class="quoted-plain-text"><br></blockquote><blockquote type="cite" class="quoted-plain-text">In one chamber of the cave an excavation grid has been setup. The</blockquote><blockquote type="cite" class="quoted-plain-text">excavation grid's north is 23 degrees east of true north. Magnetic north</blockquote><blockquote type="cite" class="quoted-plain-text">is 18 degrees west of true north.</blockquote><blockquote type="cite" class="quoted-plain-text"><br></blockquote><blockquote type="cite" class="quoted-plain-text">So if I put "grid bottom" into my layout I get a grid on my pdf output</blockquote><blockquote type="cite" class="quoted-plain-text">which is oriented to magnetic north.</blockquote><blockquote type="cite" class="quoted-plain-text"><br></blockquote><blockquote type="cite" class="quoted-plain-text">Is there a way to orientate this grid to 23 degrees east of true north?</blockquote><blockquote type="cite" class="quoted-plain-text"><br></blockquote><blockquote type="cite" class="quoted-plain-text">Thanks,</blockquote><blockquote type="cite" class="quoted-plain-text"><br></blockquote><blockquote type="cite" class="quoted-plain-text">Steven</blockquote><blockquote type="cite" class="quoted-plain-text"><br></blockquote><blockquote type="cite" class="quoted-plain-text"><br></blockquote><blockquote type="cite" class="quoted-plain-text">_______________________________________________</blockquote><blockquote type="cite" class="quoted-plain-text">Therion mailing list</blockquote><blockquote type="cite" class="quoted-plain-text"><a href="mailto:Therion@speleo.sk" data-mce-href="mailto:Therion@speleo.sk">Therion@speleo.sk</a></blockquote><blockquote type="cite" class="quoted-plain-text"><a href="https://mailman.speleo.sk/listinfo/therion" data-mce-href="https://mailman.speleo.sk/listinfo/therion">https://mailman.speleo.sk/listinfo/therion</a></blockquote><blockquote type="cite" class="quoted-plain-text"><br></blockquote>_______________________________________________<br>Therion mailing list<br><a href="mailto:Therion@speleo.sk" data-mce-href="mailto:Therion@speleo.sk">Therion@speleo.sk</a><br><a href="https://mailman.speleo.sk/listinfo/therion" data-mce-href="https://mailman.speleo.sk/listinfo/therion">https://mailman.speleo.sk/listinfo/therion</a><br></span></div></div></blockquote></div></body></html>