----- Forwarded message from
morphmet_modera...@morphometrics.org -----
Date: Wed, 01 Aug 2012
16:41:29 -0700
From: morphmet_modera...@morphometrics.org
Reply-To: morphmet_modera...@morphometrics.org
Subject: Update: Morpho
R-package and new package Rvcg
To:
morphmet@morphometrics.org
----- Forwarded message from
Stefan Schlager
Date:
Thu, 19 Jul 2012 10:19:45 -0400
From: Stefan Schlager
Reply-To: Stefan Schlager
Subject: Update: Morpho
R-package and new package Rvcg
To:
morphmet@morphometrics.org
I found the time to release a new version (0.17) of my R-package called Morpho. As you will see there is a shift towards triangle mesh based operations.
Please note, that before installing Morpho, you need to install the following dependencies first:
install.packages(c("shapes","doParallel","colorRamps","RANN"))
Apart from bugfixes, the following new functions and changes are included:
new:
meshDist calculate and visualise distances between triangular surface meshes or between landmarks and a surface.
export.meshDist writes coloured surfaces to file (PLY file format)
render.meshDist visualise the results from meshDist using different parameters.
closemeshKD find closest points of the vertices of a mesh or a matrix on an imported triangular surface mesh (without calling an external command line tool)
typprob: calculate typicality probabilities
typprobClass: use the latter to assign or reject group membership
rmUnrefVertex: remove unreferenced vertices from a triangular mesh
rmVertex: remove vertices from a mesh without distorting the triangles
changes:
find.outliers allows to use mahalanobisdistance (if requested from a reduced space)
Important:
To gain full functionality, you need to install the command line tools from http://sourceforge.net/projects/morpho-rpackage/files/Auxiliaries/Binaries/
- Ubuntu/Debian users: there is a ppa: ppa:zarquon42/ppa - the package is called trimesh-tools.
- Windows: I added an installer for windows, that sets the system path correctly.
Announcement:
Currently; I am working on a new package called Rvcg:
it provides some functionalities of meshlab within R (on objects of class "mesh3d") by using the vcglib sources:
- fast import of PLY files (ASCII and binary)
- smoothing: Taubin, Laplacian, Laplacian+HC
- mesh decimation (quadric edge collapse)
- closest point search
- calculate mesh resolution (mean edge length)
Linux: https://sourceforge.net/projects/morpho-rpackage/files/Morpho_src/
Win/OSX: https://sourceforge.net/projects/morpho-rpackage/files/Morpho_Binaries/ ### the .tgz is for mac while the .zip file is for windows
drop me a line or get the sources via GIT:
git clone
git://morpho-rpackage.git.sourceforge.net/gitroot/morpho-rpackage/Rvcg
and build it yourself.
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
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