https://community.esri.com/t5/arcgis-pro-questions/extending-a-3d-tin-beyond-the-points-used-to/m-p/1382900#M78857 <P>I don't know a tool that will do this for you, but if you are willing to dig into Python and feature geometry, you could calculate the z values for the vertices of the bounding polygons and use them as inputs to the triangulation.</P><P><A href="https://stackoverflow.com/questions/52182951/getting-the-height-from-4-points-and-local-coords-at-any-given-position-walking" target="_blank">https://stackoverflow.com/questions/52182951/getting-the-height-from-4-points-and-local-coords-at-any-given-position-walking</A></P> Thu, 15 Feb 2024 16:40:49 GMT BobBooth1 2024-02-15T16:40:49Z https://community.esri.com/t5/arcgis-pro-questions/extending-a-3d-tin-beyond-the-points-used-to/m-p/1381941#M78718 <P>Hello,</P><P>I am attempting to create a 3D plane from three points. However, I would like to have this plane extend outwards beyond the extent of the three points, potentially to a bounding polygon. The elevation of the plane would maintain the slopes that the three points create whilst extending to the bounding polygon.&nbsp;</P><P>It has been easy to create this plane within the points, but I cannot find a way to have it continue to interpolate this plane outside of the points.</P><P>Does the community have any ideas how to achieve this? Thanks in advance.</P> Tue, 13 Feb 2024 22:30:47 GMT https://community.esri.com/t5/arcgis-pro-questions/extending-a-3d-tin-beyond-the-points-used-to/m-p/1381941#M78718 LostCarto 2024-02-13T22:30:47Z https://community.esri.com/t5/arcgis-pro-questions/extending-a-3d-tin-beyond-the-points-used-to/m-p/1381945#M78720 <P>Were you using this tool?</P><P><A href="https://pro.arcgis.com/en/pro-app/latest/tool-reference/3d-analyst/create-tin.htm" target="_blank">Create TIN (3D Analyst)—ArcGIS Pro | Documentation</A></P><P>In the tool's Environments property, it should support the Extent property which could be set as a bounding constraint</P> Tue, 13 Feb 2024 22:40:32 GMT https://community.esri.com/t5/arcgis-pro-questions/extending-a-3d-tin-beyond-the-points-used-to/m-p/1381945#M78720 DanPatterson 2024-02-13T22:40:32Z https://community.esri.com/t5/arcgis-pro-questions/extending-a-3d-tin-beyond-the-points-used-to/m-p/1381956#M78724 <P>Sadly, no matter what extent is set in the Environments property, the TIN is only generated within the bounds of the three points.&nbsp;</P> Tue, 13 Feb 2024 22:58:46 GMT https://community.esri.com/t5/arcgis-pro-questions/extending-a-3d-tin-beyond-the-points-used-to/m-p/1381956#M78724 LostCarto 2024-02-13T22:58:46Z https://community.esri.com/t5/arcgis-pro-questions/extending-a-3d-tin-beyond-the-points-used-to/m-p/1382900#M78857 <P>I don't know a tool that will do this for you, but if you are willing to dig into Python and feature geometry, you could calculate the z values for the vertices of the bounding polygons and use them as inputs to the triangulation.</P><P><A href="https://stackoverflow.com/questions/52182951/getting-the-height-from-4-points-and-local-coords-at-any-given-position-walking" target="_blank">https://stackoverflow.com/questions/52182951/getting-the-height-from-4-points-and-local-coords-at-any-given-position-walking</A></P> Thu, 15 Feb 2024 16:40:49 GMT https://community.esri.com/t5/arcgis-pro-questions/extending-a-3d-tin-beyond-the-points-used-to/m-p/1382900#M78857 BobBooth1 2024-02-15T16:40:49Z