https://community.graphisoft.com/t5/General-discussions/Mesh-amp-No-Surface-Fitting-vs-Fit-to-User/m-p/47855#M6907 Joseph,<BR /> You need to carefully study the drawings in the manual.<BR /> You will notice that there is difference between the user defined collection<BR /> of points defining a ridge when "fit to user ridges" is used versus<BR /> "fit to all ridges". In the former case the ridge line is straight from<BR /> corner point to corner point whereas in the latter case the ridge line<BR /> goes up and down following the the triangulated surface of the mesh<BR /> which is composed of user defined ridges resolved by AC into<BR /> many ridges forming triangles.<BR /> If you select "all ridges sharp" in the model panel<BR /> you can see all ridges that form the surface.<BR /> Depending on your purpose, you pick the method you want.<BR /> For Instance if you want to see the natural terrain terminate<BR /> at the walls of a building in a line that represents the intersection<BR /> of the building wall and the terrain surface you would pick "fit to all ridges"<BR /> HTH,<BR /> Peter Devlin Tue, 26 Oct 2004 00:37:10 GMT Anonymous 2004-10-26T00:37:10Z https://community.graphisoft.com/t5/General-discussions/Mesh-amp-No-Surface-Fitting-vs-Fit-to-User/m-p/47854#M6906 <DIV class="actalk-migrated-content">Hi,<BR />Cloud someone help me in understanding Surface Fitting vs. Fit to User Ridges vs. Fit to All Rides. I keep reading Page 198-199 of manual and get more confuse, it appears to have only effect on the speed of redraw. Any how to will be appreciated.<BR />Thanks,<BR />Joseph Harouni</DIV> Thu, 30 Jan 2025 10:46:26 GMT https://community.graphisoft.com/t5/General-discussions/Mesh-amp-No-Surface-Fitting-vs-Fit-to-User/m-p/47854#M6906 Anonymous 2025-01-30T10:46:26Z https://community.graphisoft.com/t5/General-discussions/Mesh-amp-No-Surface-Fitting-vs-Fit-to-User/m-p/47855#M6907 Joseph,<BR /> You need to carefully study the drawings in the manual.<BR /> You will notice that there is difference between the user defined collection<BR /> of points defining a ridge when "fit to user ridges" is used versus<BR /> "fit to all ridges". In the former case the ridge line is straight from<BR /> corner point to corner point whereas in the latter case the ridge line<BR /> goes up and down following the the triangulated surface of the mesh<BR /> which is composed of user defined ridges resolved by AC into<BR /> many ridges forming triangles.<BR /> If you select "all ridges sharp" in the model panel<BR /> you can see all ridges that form the surface.<BR /> Depending on your purpose, you pick the method you want.<BR /> For Instance if you want to see the natural terrain terminate<BR /> at the walls of a building in a line that represents the intersection<BR /> of the building wall and the terrain surface you would pick "fit to all ridges"<BR /> HTH,<BR /> Peter Devlin Tue, 26 Oct 2004 00:37:10 GMT https://community.graphisoft.com/t5/General-discussions/Mesh-amp-No-Surface-Fitting-vs-Fit-to-User/m-p/47855#M6907 Anonymous 2004-10-26T00:37:10Z