<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">If you have a good coastline map, can you just geo-rectify the new map to it using coastline features as GCPs? Then it'll have the same projection as the coastline layer and you can re-project it to your working projection.<div class=""><br class=""></div><div class="">Stu</div><div class=""> <br class=""><div><blockquote type="cite" class=""><div class="">On May 13, 2016, at 10:14 AM, Eric Patton <<a href="mailto:thepattonian@gmail.com" class="">thepattonian@gmail.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div dir="ltr" class=""><br class=""><div class="gmail_extra"><br class=""><div class="gmail_quote">On Fri, May 13, 2016 at 10:48 AM, Anna Petrášová <span dir="ltr" class=""><<a href="mailto:kratochanna@gmail.com" target="_blank" class="">kratochanna@gmail.com</a>></span> wrote:<br class=""><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">>> I'm not sure if I am going about this the correct way.<br class="">
><br class="">
</span>>I don't have too much experience with this, but I think it's a good<br class="">>approach. But you also need to know the ellipsoid, not sure if that<br class="">>could cause the misalignment.<br class="">
><br class="">>Anna<br class="">
<span class=""><br class=""></span></blockquote></div><div class="gmail_extra"><br class=""></div>Thanks, I have assumed WGS84, where the map was made in 2002; I'll also try NAD27 as that is not uncommon in the region.<br clear="all" class=""><div class=""><br class=""></div>-- <br class=""><div class="gmail_signature">Eric </div>
</div></div>
_______________________________________________<br class="">grass-user mailing list<br class=""><a href="mailto:grass-user@lists.osgeo.org" class="">grass-user@lists.osgeo.org</a><br class="">http://lists.osgeo.org/mailman/listinfo/grass-user</div></blockquote></div><br class=""></div></body></html>