able for raster bathymetries passed directly to <code>basemap</code>.</p></dd>


<dt>proj.out</dt>
<dd><p>A character string specifying the <a href="https://r-spatial.github.io/sf/reference/st_crs.html" class="external-link">coordinate reference system</a> (CRS)  argument for the output. See <code><a href="https://r-spatial.github.io/sf/reference/st_crs.html" class="external-link">st_crs</a></code> and <a href="https://proj.org/" class="external-link">proj.org</a>. If <code>NULL</code>, the projection is re