Re: [MORPHMET] Curve sliding semilandmarks

Be careful to dampen the displacement along the tangents, as there is no surface to project the landmarks back to. Using Morpho, you can control this using the parameter "stepsize". Best Stefan On 06/12/16 19:21, Lawrence Fatica wrote: > > Hi all, > > I am working on a project examining shape vari

[MORPHMET] Morpho and Rvcg: New CRAN releases

Dear all, there are new CRAN releases of my R-packages /Morpho/ and /Rvcg/ available with the following new features, updates and bug-fixes: Morpho: New features * added sortCurve and equidistantCurve * added kappa statistic to print.classify * added read/write.fcsv to read wr

Re: [MORPHMET] Sliding Semilandmarks

Hi all, I just stumbled across this discussion a bit too late, so I am joining the party after everybody has left. > If the semilandmarks slide a lot relative to the local curvature, they > get off the curve. Of course, they can be projected back, but the > following trick often is sufficient: In

[MORPHMET] New version of Morpho and Rvcg

Dear all, I released new versions of my R-packages *Morpho* and *Rvcg* on CRAN. Here are the changes. New features in Morpho 2.3.0 - added function line2plane to calculate intersection of a line and a plane - added option pcAlign in function mirror to improve alignmen

Re: [MORPHMET] 3D images - manipulation and registration?

Hi Hildur, you can try to use the function pcAlign (from my R-package Morpho), to align meshes by their PC-axes. And, if you like my (inofficial) package mesheR (https://github.com/zarquon42b/mesheR) is sporting a variety of rigid, similarity, affine and elastic ICP registration procedures for 3D-

[MORPHMET] New Versions of Morpho and Rvcg now on CRAN

Dear all, I uploaded new versions of my R-packages *Morpho* (version 2.2) and *Rvcg* (version 0.10.1) to CRAN. Here are the changes since the last version. You can install them using the install.packages() command. Changes in Morpho since Version 2.0.3 New features * slider3d, relaxLM

Re: [MORPHMET] Error with read.ply in geomorph

-of-the-r-package-rvcg-latest-development-code-using-devtools Best Stefan On 16/12/14 19:33, Stefan Schlager wrote: > Hi Emma, > which version of Rvcg did you use? > could you send me the file for debugging? > I have tested the function with a variety of textured files without > i

Re: [MORPHMET] Error with read.ply in geomorph

an, the original file read fine with your vsgImport function, > but only when readcolor=FALSE. When TRUE, it crashed R. > > Emma > > On Tuesday, 16 December 2014 05:34:00 UTC+11, Stefan Schlager wrote: > > Hi David, > You can use either vcgImport from Rvcg or file2

Re: [MORPHMET] Error with read.ply in geomorph

Hi David, You can use either vcgImport from Rvcg or file2mesh from Morpho (which is basically the same) to import all kinds of meshes (stl, obj, ply) binary and ascii into an object of class "mesh3d" Best Stefan On 15/12/14 01:52, David Katz wrote: > Hello, > > When I try to read a 3D surface fil

[MORPHMET] Morpho: Massive improvements in sliding performance of 3D-landmarks

Dear all, I massively tweaked the sliding algorithm used in my R-package Morpho. You can read about the results on my blog: http://zarquon42b.github.io/2014/10/31/slidingtweaks/ and I invite the bold ones of you to test it. Installation instructions: First install R's building environment as desc

Re: CVA in MorphoJ vs LDA in R

Dear Louis and Martha, the difference between lda in R and a cva - is that lda uses the covariance matrix and not the pooled within group covariance matrix. greetings Stefan BTW.: at the moment i am working on a Rpackage that implements sliding of surface and curve semilandmarks (on 3D-mesh