-------- Original Message --------
Subject: Re: R-package for for shape analysis and mesh operations
[under development]
Date: Fri, 20 Jan 2012 14:25:49 -0500
From: Pedro Cordeiro Estrela <[email protected]>
Reply-To: Pedro Cordeiro Estrela <[email protected]>
To: [email protected] <[email protected]>
http://cran.r-project.org/doc/contrib/Paradis-rdebuts_en.pdf
________________________________________________________________
Biologia e Parasitologia de Mamíferos Silvestres Reservatórios
Pavilhão Arthur Neiva
IOC / Fundação Oswaldo Cruz
Avenida Brasil, 4365
Manguinhos
Rio de Janeiro - RJ, Brasil
21040-900
Tel: +55 (21) 2562 1253 /+55 (21) 2562 1324
Cel: + 55 (21) 8389 8788
_________________________________________________________________
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------------------------------------------------------------------------
*From:* morphmet <[email protected]>
*To:* morphmet <[email protected]>
*Sent:* Friday, January 20, 2012 5:01 PM
*Subject:* Re: R-package for for shape analysis and mesh operations
[under development]
-------- Original Message --------
Subject: Re: R-package for for shape analysis and mesh operations [under
development]
Date: Fri, 20 Jan 2012 11:25:46 -0500
From: Anna Maria Vettraino <[email protected] <mailto:[email protected]>>
To: <[email protected] <mailto:[email protected]>>
Dear all,
I would take advantage from the discussion…I tried to use R and I felt
really stupid…do you know a quick guide to learn how use it?
Thank you in advance
regards
AM
Il giorno 20/01/12 17:13, "morphmet"
<[email protected]
<mailto:[email protected]>> ha scritto:
>
>
>-------- Original Message --------
>Subject: Re: R-package for for shape analysis and mesh operations [under
> development]
>Date: Fri, 20 Jan 2012 10:38:07 -0500
>From: [email protected] <mailto:[email protected]>
>To: [email protected] <mailto:[email protected]>
>CC: morphmet <[email protected]
<mailto:[email protected]>>
>
>
>Dear Stefan
>That seems great! There is any help documentation with
>sample files and sample scripts? It would facilitate
>the use of Morpho package...
>Thanks in advance
>Paolo
>
>-------- Original Message --------
>Subject: R-package for for shape analysis and mesh
>operations [under
>development]
>Date: Fri, 20 Jan 2012 04:33:23 -0500
>From: Stefan Schlager
><[email protected]
<mailto:[email protected]>>
>To: [email protected] <mailto:[email protected]>
>
>
>
>Dear all,
>
>as it seems that more and more people are using R and
>also are working
>with triangular meshes, I also take the opportunity to
>share some
>scripts with you:
>I am developing an R package (which are basically
>functions coded for my
>dissertation) called Morpho which allows a lot of mesh
>operations.
>Including:
>
> * importing all kinds of mesh formats (e.g.
>obj,ply,stl,...)
> (file2mesh) and
> * exporting objects of class "mesh3d" to ascii-ply
>format (mesh2ply)
> * operations like TPS deformation, and affine
>transformations based on
> landmark informations (warp.mesh, rotmesh.onto,
>scalemesh),
> including the updating of facesâ normals.
> * the imported objects are of class "mesh3d" so
>that they can be
> rendered by the functions shade3d and wire3d from
>the rgl-package
> * a function (called slider3d) allowing sliding of
>points, surfaces
> and curves (using the bending energy criterion)
>and projecting the
> slidden points back onto the 3D-mesh.
> * There is also a function for semi-automatic
>placement of surface
> patches (place.patch - yet undocumented) onto a
>whole sample based
> on a initially defined atlas configuration.
> * Iâve included functions for im- and exporting
>landmark-data from
> landmark-IDAV (read.pts,write.pts,read.lmdta) and
>extracting the
> information, if the coordinate belongs to a curve
>or surface from
> imported pts files (c.extract), as I used this
>program to place the
> curves and the atlas surface.
> * There is also a GPA algorithm optimised for speed
>(procSym), useful
> for big sample sizes and many (semi-)landmarks,
>that also allows
> analysis of symmetry/asymmetry.
> * CVA (thanks to M. Rufino from this mailing list
>for providing nice
> examples in the documentation)
> * some permutation tests
> * graphical interface to find outliers (similar to
>MorphoJ)
>
>
>And here comes the bad part: Iâm a bit behind with
>the documentation, so
>a lot code remains unexplained :(
>
>If you're interested, you can download precompiled
>packages or the
>source code from
>https://sourceforge.net/projects/morpho-rpackage/files/
>
>It is optimised for Linux but also works on OSX and
>Windows (with some
>restrictions)!!!
>
>For the full functionality you must also download some
>command line
>tools which I coded using the header files of the
>meshlab/vcglib project
>(http://meshlab.sourceforge.net/ ,
>http://vcg.sourceforge.net/index.php/Main_Page) and
>install them (add
>them to your systemâs path). I recently managed to
>compile those not
>only for Linux but also for OSX and Windows.
>
>Read the README!!
>
>Itâs all licensed under GPL, so you also can rip it
>apart and improve or
>adapt it, if necessary.
>
>Best regards
>Stefan
>
>Stefan Schlager M.A.
>Anthropologie
>Medizinische Fakultät der der Albert Ludwigs-
>Universität Freiburg
>Hebelstr. 29
>79104 Freiburg
>
>Anthropology
>Faculty of Medicine, Albert-Ludwigs-University
>Freiburg
>Hebelstr. 29
>D- 79104 Freiburg
>
>phone +49 (0)761 203-5522
>fax +49 (0)761 203-6898
>
>
>
>
>
>
>
>--
>Paolo Piras
>Center for Evolutionary Ecology
> and
>Dipartimento di Scienze Geologiche, Università Roma Tre
>Largo San Leonardo Murialdo, 1, 00146 Roma
>Tel: +390657338000
>email: [email protected] <mailto:[email protected]>
>
>
