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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt'>Not sure what you mean by dynamic attributes.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>If you need something to position points along a line, so that you can put an info tip on each point, they you’ll want to use<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'><a href="https://postgis.net/docs/en/ST_LineInterpolatePoints.html">https://postgis.net/docs/en/ST_LineInterpolatePoints.html</a><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>Something like below will give you a point every 20 percent along the linestring<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>SELECT dp.geom<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'>From your_table, ST_DumpPoints(ST_LineInterpolatePoints(your_table.geom, 0.2, true)) AS dp<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt'><o:p> </o:p></span></p><div style='border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in 4.0pt'><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'>From:</span></b><span style='font-size:11.0pt;font-family:"Calibri",sans-serif'> SERGIO ACOSTAYLARA <sergio.acostaylara@mtop.gub.uy> <br><b>Sent:</b> Wednesday, May 8, 2024 9:21 AM<br><b>To:</b> postgis-users@lists.osgeo.org<br><b>Subject:</b> linear reference/dynamic segmentation<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div id=divtagdefaultwrapper><p><span style='font-family:"Calibri",sans-serif;color:black'>Hi. Is there anybody in the list that has any experience using linear reference/dynamic segmentation with postgis? We need to show dynamic attributes in our geoportal/visualizer. Is this possible to do it with postgis?<o:p></o:p></span></p><p><span style='font-family:"Calibri",sans-serif;color:black'>Thanks in advance<o:p></o:p></span></p><p><span style='font-family:"Calibri",sans-serif;color:black'><o:p> </o:p></span></p><div id=Signature><div name=divtagdefaultwrapper><div><p class=MsoNormal><span style='font-family:"Calibri",sans-serif;color:black'>Sergio Acosta y Lara<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Calibri",sans-serif;color:black'>Departamento de Geomática<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Calibri",sans-serif;color:black'>Dirección Nacional de Topografía<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Calibri",sans-serif;color:black'>Ministerio de Transporte y Obras Públicas<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Calibri",sans-serif;color:black'>URUGUAY<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Calibri",sans-serif;color:black'>(598)29157933 ints. 20329<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Calibri",sans-serif;color:black'><a href="http://geoportal.mtop.gub.uy/">http://geoportal.mtop.gub.uy/</a><o:p></o:p></span></p></div></div></div></div></div></div></body></html>