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<p>Hi,</p>
<p>look at the result of
<a class="moz-txt-link-freetext" href="https://proj.org/en/9.3/search.html?q=accuracy&check_keywords=yes&area=default">https://proj.org/en/9.3/search.html?q=accuracy&check_keywords=yes&area=default</a></p>
<p>However that will not help you for your need. The accuracy
settings in the above functions is to have a "guaranteed"
accuracy, but you the most precise coordinate operation in the
candidates that match that accuracy. And this is mostly for
transformations (datum shifts, etc.)</p>
<p>For your case where it is for a map projection, and for the very
particular case of Transverse Mercator, you can use the +approx
switch. Cf <a class="moz-txt-link-freetext" href="https://proj.org/en/9.3/operations/projections/utm.html">https://proj.org/en/9.3/operations/projections/utm.html</a>
. Can also be achieved with +algo=<span
class="sig-prename descclassname"><span class="pre">evenden_snyder</span></span>
mentioned just below.</p>
<p>Even<br>
</p>
<div class="moz-cite-prefix">Le 27/11/2023 à 23:23, Hunter1972 via
PROJ a écrit :<br>
</div>
<blockquote type="cite" cite="mid:1915743390.20231128012321@mail.ru">
<pre class="moz-quote-pre" wrap="">Hello,
Is it possible to specify accuracy of project conversion between different CRS?
In particular I am interested in UTM <-> WGS84 conversion)routines to be much faster with lower accuracy (around 1m is enough).
Ravil
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</pre>
</blockquote>
<pre class="moz-signature" cols="72">--
<a class="moz-txt-link-freetext" href="http://www.spatialys.com">http://www.spatialys.com</a>
My software is free, but my time generally not.</pre>
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