Updates: Rvcg 0.10.1 and Morpho 2.2 on CRAN

New versions of my R-packages Rvcg 0.10.1 and Morpho 2.2 are now available on CRAN.

Changes in Morpho since 2.0.3:

New features

• slider3d, relaxLM and procSym now allow minimizing Procrustes distance
• added orientation check in pcAlign to avoid reflections
• massive speed improvements in sliding semi-landmarks routines
• added options missing/missingList in relaxLM and slider3d to allow using semi-landmarks in “thin-air”
• added helper function createMissingList
• added function points2plane for projecting a point/pointcloud onto a plane.
• pcAlign with argument y missing now centers a shape and aligns it by its principal axes.
• added option pcAlign in procSym and ProcGPA to enable/disable alignment of sample by principal axes
• added new function mirror to mirror a landmark configuration or a mesh and registering onto the original one.
• added new functions retroDeform3d and retroDeformMesh for removing affine deformation from a 3D-meshes and pointclouds
• deformGrid3d now also accepts meshes
• added function classify for CVA and groupPCA for creating classification tables
• added new functions getTrafo4x4, getTrafoRotaxis, computeTransform and applyTransform, for computing and applying affine transformations.
• new function pcAlign to align meshes and pointclouds by their principal axes
• added function meshPlaneIntersect to find intersection points between a mesh and a plane
• added function getFaces to get indices of faces that contain specified vertices

bugfixes and minor changes

• fixed issue with argument sep in typprobClass
• added option size in deformGrid3d
• fixed argument tol in ray2mesh
• fixed rhotol in placePatch if inflate=NULL
• fixed NA in colors from meshDist
• fixed rmVertex in case no faces remain
• changed relaxLM to accept 2D configs
• replaced workhorse function in projRead by the faster vcgClostKD
• made plotNormals to work with homogenous and non-homogeneous coordinates
• fixed issue in output of CVAdists (wrong attribution of p-value tables)
• renamed conv2backf to invertFaces
• renamed crossp to crossProduct
• renamed tanplan to tangentPlane
• reorient faces if reflections are involved in applyTransform
• made read.lmdta more versatile
• fixed an issue with argument “size” in deformGrid3d
• set default method to “vcg” in meshDist

Changes in Rvcg since 0.9:

• pulled new upstream code
• patched some memory leaks in upstream code
• added option silent for vcgImport, vcgIsolated, vcgQEdecim and vcgUpdateNormals
• added improved exception handling to avoid R session crashes caused by wrong input types.
• added support for reading face and vertex quality from ply files in vcgImport
• added option split in vcgIsolated to split a mesh by connected components and return them as a list
• vcgClean now allows to fix uncoherently oriented faces
• added option tol to specify a search radius in vcgClost
• added example and docu to vcgUniformRemesh
• new function vcgUniformRemesh to remesh based on a voxelized space faces for the closest one with a correct normal orientation.
• added option weightnorm in vcgClostKD to enable/disable calculation of a weighted normal at the closest point
• fixes and optimizations in Rkdtree.cpp
• added option angdev in vcgClost/Rkdtree to find the closest point with an appropriate normal, if none is found, distance is set to 1e5
• added method Laplacian (surface preserving) in vcgSmooth
• added vcgStlWrite to export mesh3d objects to STL format.
• added option threshold in vcgIsosurface
• vcgIsosurface no longer binarizes the array values
• fixed texture import in vcgImport
• fixed missing #include <time.h> in upstream code preventing windows build

Happy Holidays and a Happy New Year