https://community.esri.com/t5/arcgis-pro-questions/extend-tin-surface-to-polygon-extent-with-some/m-p/1251800#M64636 <P>Hi!</P><P>I am trying to find a way to interpolate a TIN surface outside its extent. And if possible to the extent of a certain polygon. The image below shows an TIN created from LiDAR and the polygon of which I want the surface to extend to. The LiDAR does not have more points, but I would like to fill it in someway.</P><P>Any ideas? Thanks in advance!</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="NinoKamphuis_1-1674728248483.png" style="width: 400px;"><img src="https://community.esri.com/t5/image/serverpage/image-id/61327i146B6DCBCD3545EE/image-size/medium?v=v2&amp;px=400" role="button" title="NinoKamphuis_1-1674728248483.png" alt="NinoKamphuis_1-1674728248483.png" /></span></P><P>&nbsp;</P><P>&nbsp;</P> Thu, 26 Jan 2023 10:17:59 GMT Anonymous User 2023-01-26T10:17:59Z https://community.esri.com/t5/arcgis-pro-questions/extend-tin-surface-to-polygon-extent-with-some/m-p/1251800#M64636 <P>Hi!</P><P>I am trying to find a way to interpolate a TIN surface outside its extent. And if possible to the extent of a certain polygon. The image below shows an TIN created from LiDAR and the polygon of which I want the surface to extend to. The LiDAR does not have more points, but I would like to fill it in someway.</P><P>Any ideas? Thanks in advance!</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="NinoKamphuis_1-1674728248483.png" style="width: 400px;"><img src="https://community.esri.com/t5/image/serverpage/image-id/61327i146B6DCBCD3545EE/image-size/medium?v=v2&amp;px=400" role="button" title="NinoKamphuis_1-1674728248483.png" alt="NinoKamphuis_1-1674728248483.png" /></span></P><P>&nbsp;</P><P>&nbsp;</P> Thu, 26 Jan 2023 10:17:59 GMT https://community.esri.com/t5/arcgis-pro-questions/extend-tin-surface-to-polygon-extent-with-some/m-p/1251800#M64636 Anonymous User 2023-01-26T10:17:59Z