<div dir="ltr"><div class="gmail_default" style="font-size:small">Hi,<br></div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default">Is there an equivalent to PostGIS' ST_LocateAlong for QGIS expressions yet?</div><div class="gmail_default"><br></div><div class="gmail_default"><a href="https://postgis.net/docs/ST_LocateAlong.html">https://postgis.net/docs/ST_LocateAlong.html</a> <br></div><div class="gmail_default"><br></div><div class="gmail_default"><pre class="gmail-programlisting" style="border-width:2px 0px;font-family:"Courier New",Courier,Monaco,monospace;line-height:16px;border-color:rgb(247,147,30);border-style:solid;font-size:11px;margin-bottom:10px;margin-top:10px;overflow:auto;padding:10px;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;background-color:rgb(248,248,249);border-radius:2px;color:rgb(46,46,46)">SELECT ST_AsText(the_geom)
                FROM
                (SELECT ST_LocateAlong(
                        ST_GeomFromText('MULTILINESTRINGM((1 2 3, 3 4 2, 9 4 3),
                (1 2 3, 5 4 5))'),3) As the_geom) As foo;

                                                 st_asewkt
-----------------------------------------------------------
 MULTIPOINT M (1 2 3)</pre><div class="gmail_default"><br></div>We have line_interpolate_point but it does not take measure values into account:</div><div class="gmail_default"><br></div><div class="gmail_default">
<p style="margin:14px 0px 12px;background-color:rgb(246,246,246)"><span style="font-family:"luxi serif,georgia,times new roman,times,serif";font-size:large;font-weight:600;color:rgb(114,159,207)">function line_interpolate_point</span></p>
<p style="margin:12px 0px"><span style="font-family:"arial,sans-serif";color:rgb(0,0,0)">Returns the point interpolated by a specified distance along a linestring geometry.</span></p><p style="margin:12px 0px"><span style="font-family:"arial,sans-serif";color:rgb(0,0,0)"><br></span></p>Thanks and best wishes,<br><br>Anita<p style="margin:12px 0px"><span style="font-family:"arial,sans-serif";color:rgb(0,0,0)"><br></span></p></div></div>