Rvcg another option to explore with its ball-pivoting surface reconstruction.
Mike On Fri, May 5, 2017, 08:34 Bert Gunter <bgunter.4...@gmail.com> wrote: > The r-sig-geo list and corresponding cran task view *might* be a better > place to post and/look. > > Bert > > > On May 4, 2017 12:51 PM, "Eric Krantz" <eric.kra...@respec.com> wrote: > > > I have sonar image which is basically a point cloud (x, y, z) of an > > irregular underground cone-shaped structure. I am trying to create either > > (1) a closed 3D mesh with "equally spaced" mesh grid, or (2) a smooth > > closed surface, for instance by calculating connected localized > regression > > surfaces. My Z (vertical) component is equally spaced, but X and Y > consist > > of 128 points around the perimeter, regardless of diameter, which makes > the > > grid size small where the diameter is small, and large where it is large. > > I'm looking for relatively equal grids, so I could use regression or > > interpolation to add points where needed, or conversely remove them, > hence > > the idea of a localized surface regression. I've tried plot3D package, > RGL, > > and a couple other packages including alphashape3d. I have not tried > plotly > > or rms. So much time invested I thought I would ask for advice, if anyone > > knows a package or technique or can clue which direction to go. Thanks, > > Confidentiality Notice: This E-mail and any attachments ...{{dropped:12}} > > > > ______________________________________________ > > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > > https://stat.ethz.ch/mailman/listinfo/r-help > > PLEASE do read the posting guide http://www.R-project.org/ > > posting-guide.html > > and provide commented, minimal, self-contained, reproducible code. > > > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > -- Dr. Michael Sumner Software and Database Engineer Australian Antarctic Division 203 Channel Highway Kingston Tasmania 7050 Australia [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.