New Releases of Rvcg and Morpho: New features, performance improvements and bugfixes

I am proudly presenting new new CRAN releases of Rvcg and Morpho: The most significant changes are the optional use of external pointers to allow reusable KD-Trees and different mesh subdivision routines in Rvcg, and im/export of 3DSlicer fiducials and functions to sort curve semilandmarks and to make them equidistant. Below is the complete list of changes:

Morpho 2.4

New features

• added sortCurve and equidistantCurve
• added kappa statistic to print.classify
• added read/write.fcsv to read write landmark in 3DSlicer format
• added prcompfast, a faster and more memory efficient version of prcomp
• slider3d: now sliding without specifying surfaces is possible. Surface is estimated by computing normals from point clouds using vcgUpdateNormals
• added plot method for slider3d
• added fastKmeans a very fast and efficient way to compute k-means clustering for 2D and 3D data.

bugfixes and minor changes

• fixed C++14 standard requirements
• made index in rmVertex unique
• showPC: for single PCs vectors of length> 1 are coerced to matrix
• added option margin in deformGrid3d and deformGrid2d
• unified code for creating bending energy matrix
• made relWarps more memory and speed efficient and added option getBasis to disable (computationally expensive) calculation of vector basis.
• added dimnames from rownames in vecx
• groupPCA: returns Grandmean and Groupmeans as matrix/array for landmark data
• correct output in find.outliers if mahalanobis=TRUE and add probability
• added reflection=FALSE in find.outliers and corrected reported distances
• fixed read.lmdta for single configs
• slider3d: fixed case where all file infos are stored in sur.name
• removed dependency yaImpute using vcgKDtree instead
• added unit testing for slider3d
• made CreateL and tps3d multi-threaded
• added options silent to slider3d and relaxLM
• ignore missing values when calculating quantiles and mindist in meshDist
• refactored CVA and added unit test
• fixed predictPLSfromScores for ncomp=1
• fixed correct lwd passing in deformGrid3d
• fixed procAOVsym for 2D case (correct df)
• added unit test for pls2B
• speed up pls2B by some orders of magnitude, now suitable for very large landmark configurations

Rvcg 0.14

new features

• added vcgBallPivoting: ball pivoting surface reconstruction
• added vcgKmeans a fast k-means clustering for 2D and 3D point clouds
• added vcgClostOnKDtreeFromBarycenters, vcgCreateKDtree, vcgCreateKDtreeFromBarycenters, vcgSearchKDtree to allow reusing KD-Trees
• added vcgSubdivide to refine an existing mesh by subidviding faces
• added vcgMetro to compare differences between two meshes using different types of subsampling (thanks to F. Girinion)
• added vcgArea to calculate the surface area of a mesh
• added option keep to vcgIsolated and allowed options diameter/facenum to be used with split=T
• updated vcglib to revision 5735
• added Rvcg::IOMesh::mesh3d2Rvcg<T>, allowing easier conversion from mesh3d to vcglib meshtypes
• added checkFaceOrientation to check whether a the outer layer of a surface mesh points outward

bug fixes

• vcgClost: in case distances are beyond threshold, distance values are to NaN and a warning is issued
• refactored and simplified C++ code