<p dir="auto">To calculate the "real" area of a (multi)polygon. This is still an approximation. Results are similar to what ST_Area(geography, false) calculates in PostGIS. Accessible from Lua.</p>

<hr>

<h4>You can view, comment on, or merge this pull request online at:</h4>
<p>  <a href='https://github.com/openstreetmap/osm2pgsql/pull/2019'>https://github.com/openstreetmap/osm2pgsql/pull/2019</a></p>

<h4>Commit Summary</h4>
<ul>
  <li><a href="https://github.com/openstreetmap/osm2pgsql/pull/2019/commits/bc3819514660fc9911453dbe4010e371f738d702" class="commit-link">bc38195</a>  Add spherical_area() function</li>
</ul>

<h4 style="display: inline-block">File Changes </h4> <p style="display: inline-block">(<a href="https://github.com/openstreetmap/osm2pgsql/pull/2019/files">6 files</a>)</p>
<ul>
  <li>
    <strong>M</strong>
    <a href="https://github.com/openstreetmap/osm2pgsql/pull/2019/files#diff-671a7120b35283e10c9f32cf6cae7939f7d53c5623081c1066d54d4df7c49040">flex-config/geometries.lua</a>
    (11)
  </li>
  <li>
    <strong>M</strong>
    <a href="https://github.com/openstreetmap/osm2pgsql/pull/2019/files#diff-db26d1cd0f936a06d679e8933d356e71fe75a5aacadaf80aa157c8756e3f42ac">src/flex-lua-geom.cpp</a>
    (19)
  </li>
  <li>
    <strong>M</strong>
    <a href="https://github.com/openstreetmap/osm2pgsql/pull/2019/files#diff-8e516e3a075df67c9ff04b84cc4c11486e7811b1b1326eb1f6ef93867e1aa5fa">src/geom-functions.cpp</a>
    (38)
  </li>
  <li>
    <strong>M</strong>
    <a href="https://github.com/openstreetmap/osm2pgsql/pull/2019/files#diff-c4360a478d6b2f8a59148d27de7598d79579ac8e68f4405dc5b0f5be7c6a765a">src/geom-functions.hpp</a>
    (11)
  </li>
  <li>
    <strong>M</strong>
    <a href="https://github.com/openstreetmap/osm2pgsql/pull/2019/files#diff-3f4928b8fe24934241b34fdf29778a924b05a475b25a931eebab86fad980ef77">tests/test-geom-multipolygons.cpp</a>
    (4)
  </li>
  <li>
    <strong>M</strong>
    <a href="https://github.com/openstreetmap/osm2pgsql/pull/2019/files#diff-a945dd568dfcfcb10e512dd5d86c1217825076864ee22b0633256ef3b872eac1">tests/test-geom-polygons.cpp</a>
    (7)
  </li>
</ul>

<h4>Patch Links:</h4>
<ul>
  <li><a href='https://github.com/openstreetmap/osm2pgsql/pull/2019.patch'>https://github.com/openstreetmap/osm2pgsql/pull/2019.patch</a></li>
  <li><a href='https://github.com/openstreetmap/osm2pgsql/pull/2019.diff'>https://github.com/openstreetmap/osm2pgsql/pull/2019.diff</a></li>
</ul>

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