[MINC-users] Surface Object Correction

[Raihaan Patel]

Hi Alex and Simon,

Thank you both for your replies.

Alex - a quick look at the Meshlab docs looks promising and I will
certainly give it a try.

Simon - the object was created using a label.mnc file and Display, then
downsampled using Amira.
  1. Display label.mnc
  2. In Create Surface menu (G), use Volume Bin-Isosurf (S) to isolate ROI
and extract surface
  3. In Polygons menu (Z), perform one iteration of Smooth Polygon (C)
  4. Save as .obj file
  5. Downsampled the .obj file using Amira software, reducing the number of
faces

The downsampled .obj file is a triangular mesh.

Raihaan


On Wed, Mar 25, 2015 at 9:01 AM, Alex Zijdenbos <zijdenbos at gmail.com> wrote:

> Hi Raihaan,
>
> Agreeing with Simon - probably better to avoid these in the first place;
> but for editing meshes, you may want to take a look at Meshlab, it has a
> variety of options for cleaning/remeshing/etc.
>
> -- A
>
> On Wed, Mar 25, 2015 at 6:16 AM, Simon Eskildsen <eskild at gmail.com> wrote:
>
> > Hi Raihaan,
> >
> > What you're asking for is far from trivial. Can you provide more details?
> > How did you create the object - how did the intersections happen? Are we
> > talking about a triangular mesh?
> > In general, the best strategy is to prevent these unwanted features to
> > happen in the first place.
> >
> > Simon
> >
> > On Mon, Mar 23, 2015 at 3:33 PM, Raihaan Patel <patelraihaan at gmail.com>
> > wrote:
> >
> > > Hi All,
> > >
> > > I'm looking for any advice/input on correcting a surface object (.obj).
> > > Specifically, I am wondering how to:
> > >
> > > - remove/correct any intersecting faces
> > > - remove/correct any faces that have an area of 0
> > >
> > > Thanks very much,
> > > Raihaan
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