https://community.esri.com/t5/arcgis-pro-questions/smooth-or-merge-triangles-in-a-tin/m-p/1220147#M60863 <P>I have contours that I'm converting to a TIN, it works fine but I get waaaay too many triangles.&nbsp; Is there a tool that will smooth or blend or merge some of these triangles and still maintain the surface's look.&nbsp; There are too many that are unnecessarily tiny and I'd like to clean those up.&nbsp; I ultimately need to convert these triangles to polygons and keep the file size as low as I can.</P> Sun, 09 Oct 2022 04:31:07 GMT MillionMap 2022-10-09T04:31:07Z https://community.esri.com/t5/arcgis-pro-questions/smooth-or-merge-triangles-in-a-tin/m-p/1220147#M60863 <P>I have contours that I'm converting to a TIN, it works fine but I get waaaay too many triangles.&nbsp; Is there a tool that will smooth or blend or merge some of these triangles and still maintain the surface's look.&nbsp; There are too many that are unnecessarily tiny and I'd like to clean those up.&nbsp; I ultimately need to convert these triangles to polygons and keep the file size as low as I can.</P> Sun, 09 Oct 2022 04:31:07 GMT https://community.esri.com/t5/arcgis-pro-questions/smooth-or-merge-triangles-in-a-tin/m-p/1220147#M60863 MillionMap 2022-10-09T04:31:07Z https://community.esri.com/t5/arcgis-pro-questions/smooth-or-merge-triangles-in-a-tin/m-p/1220153#M60866 <P>your contours are really close, hence the large number of triangles,&nbsp;&nbsp;</P><P>change your contour interval prior to making the tin, or try</P><P><A href="https://pro.arcgis.com/en/pro-app/latest/tool-reference/3d-analyst/decimate-tin-nodes.htm" target="_blank">Decimate TIN Nodes (3D Analyst)—ArcGIS Pro | Documentation</A></P><P>to reduce redundancies in the data</P> Sun, 09 Oct 2022 07:25:51 GMT https://community.esri.com/t5/arcgis-pro-questions/smooth-or-merge-triangles-in-a-tin/m-p/1220153#M60866 DanPatterson 2022-10-09T07:25:51Z