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<p><font face="Avenir">Hi Javier,</font></p>
<p><font face="Avenir">there is a QGIS plugin called 'Beeline' that
measures great circle distances:
<a class="moz-txt-link-freetext" href="https://plugins.qgis.org/plugins/Beeline/">https://plugins.qgis.org/plugins/Beeline/</a></font></p>
<p><font face="Avenir">Hope that helps?</font></p>
<p><font face="Avenir">Cheers,<br>
Mia<br>
</font></p>
<div class="moz-cite-prefix">On 20.06.25 12:06, Javier Jimenez Shaw
via gdal-dev wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CADRrdKs97ZYkH2ySpL2Wh2NfNZav=zNpXfTjXkJZUbvK-pyiLg@mail.gmail.com">
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<div>Hi</div>
<div><br>
</div>
<div>Yesterday I read an article in a newspaper with an image
showing distances from a country that was not considering that
the Earth is spheric. It is not the first time; it will not be
the last one. As we all (should) know, measuring large
distances (thousands of kilometers) in projected coordinates
is wrong.</div>
<div><br>
</div>
<div>Is there any way to do it properly in GDAL or QGIS? What I
mean is that the distance (in meters) for a buffer (or
parallel line) is measured along greatest circles
perpendicular to the source geometry.</div>
<div><br>
</div>
<div>If not, should we implement it somewhere? (GDAL, QGIS,
somewhere else)</div>
<div>I guess that we need PROJ for that algorithm to compute the
distance along a great circle.</div>
<div><br>
</div>
<div>Thanks</div>
<div>Javier</div>
<div><br>
</div>
<div>PS trying in QGIS, I see it uses ST_Buffer from an sqlite
query. But it is not what I am talking about. That is the
"wrong" solution for large distances.</div>
<div><br>
</div>
</div>
<br>
<fieldset class="moz-mime-attachment-header"></fieldset>
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