Package: geometry 0.5.2

geometry: Mesh Generation and Surface Tessellation

Makes the 'Qhull' library <http://www.qhull.org> available in R, in a similar manner as in Octave and MATLAB. Qhull computes convex hulls, Delaunay triangulations, halfspace intersections about a point, Voronoi diagrams, furthest-site Delaunay triangulations, and furthest-site Voronoi diagrams. It runs in 2D, 3D, 4D, and higher dimensions. It implements the Quickhull algorithm for computing the convex hull. Qhull does not support constrained Delaunay triangulations, or mesh generation of non-convex objects, but the package does include some R functions that allow for this.

Authors:Jean-Romain Roussel [cph, ctb], C. B. Barber [cph], Kai Habel [cph, aut], Raoul Grasman [cph, aut], Robert B. Gramacy [cph, aut], Pavlo Mozharovskyi [cph, aut], David C. Sterratt [cph, aut, cre]

geometry_0.5.2.tar.gz
geometry_0.5.2.zip(r-4.7)geometry_0.5.2.zip(r-4.6)geometry_0.5.2.zip(r-4.5)
geometry_0.5.2.tgz(r-4.6-x86_64)geometry_0.5.2.tgz(r-4.6-arm64)geometry_0.5.2.tgz(r-4.5-x86_64)geometry_0.5.2.tgz(r-4.5-arm64)
geometry_0.5.2.tar.gz(r-4.7-arm64)geometry_0.5.2.tar.gz(r-4.7-x86_64)geometry_0.5.2.tar.gz(r-4.6-arm64)geometry_0.5.2.tar.gz(r-4.6-x86_64)
geometry_0.5.2.tgz(r-4.6-emscripten)
manual.pdf |manual.html✨
DESCRIPTION |NEWS
card.svg |card.png
geometry/json (API)

# Install 'geometry' in R:

install.packages('geometry', repos = c('https://davidcsterratt.r-universe.dev', 'https://cloud.r-project.org'))

Bug tracker:https://github.com/davidcsterratt/geometry/issues

Uses libs:

c++– GNU Standard C++ Library v3

On CRAN:

cpp

12.56 score 18 stars 165 packages 986 scripts 21k downloads 11 mentions 38 exports 6 dependencies

Last updated from:05741919b3. Checks:13 OK. Indexed: yes.

Target	Result	Time
linux-devel-arm64	OK	178
linux-devel-x86_64	OK	149
source / vignettes	OK	223
linux-release-arm64	OK	146
linux-release-x86_64	OK	195
macos-release-arm64	OK	95
macos-release-x86_64	OK	248
macos-oldrel-arm64	OK	141
macos-oldrel-x86_64	OK	249
windows-devel	OK	141
windows-release	OK	161
windows-oldrel	OK	135
wasm-release	OK	159

Exports:bary2cart cart2bary cart2pol cart2sph convhulln delaunayn distmesh2d distmeshnd dot entry.value entry.value<-extprod3d feasible.point halfspacen inhulln intersectn matmax matmin matorder matsort mesh.dcircle mesh.diff mesh.drectangle mesh.dsphere mesh.hunif mesh.intersect mesh.union pol2cart polyarea rbox sph2cart surf.tri tetramesh to.mesh3d trimesh tsearch tsearchn Unique

Dependencies:abind linprog lpSolve magic Rcpp RcppProgress

Qhull examples

Convex hulls in 2D | Delaunay triangulation in 2D

Rendered fromqhull-eg.Rnwusingutils::Sweave

Last update: 2019-02-12
Started: 2019-02-11

Help page	Topics
Conversion of Barycentric to Cartesian coordinates	bary2cart
Conversion of Cartesian to Barycentric coordinates.	cart2bary
Transform Cartesian coordinates to polar or cylindrical coordinates.	cart2pol
Transform Cartesian to spherical coordinates	cart2sph
Compute smallest convex hull that encloses a set of points	convhulln
Delaunay triangulation in N dimensions	delaunayn
A simple mesh generator for non-convex regions	distmesh2d
A simple mesh generator for non-convex regions in n-D space	distmeshnd
Compute the dot product of two vectors	dot
Retrieve or set a list of array element values	entry.value entry.value<-
Compute external- or 'cross'- product of 3D vectors.	extprod3d
Find point in intersection of convex hulls	feasible.point
Compute halfspace intersection about a point	halfspacen
Test if points lie in convex hull	inhulln
Compute convex hull of intersection of two sets of points	intersectn
Row-wise matrix functions	matmax matmin matorder matsort
Circle distance function	mesh.dcircle
Difference, union and intersection operation on two regions	mesh.diff mesh.intersect mesh.union
Rectangle distance function	mesh.drectangle
Sphere distance function	mesh.dsphere
Uniform desired edge length	mesh.hunif
Transform polar or cylindrical coordinates to Cartesian coordinates.	pol2cart
Determines area of a polygon by triangle method.	polyarea
Generate various point distributions	rbox
Transform spherical coordinates to Cartesian coordinates	sph2cart
Find surface triangles from tetrahedral mesh	surf.tri
Render tetrahedron mesh (3D)	tetramesh
Convert convhulln object to RGL mesh	to.mesh3d
Display triangles mesh (2D)	trimesh
Search for the enclosing Delaunay convex hull	tsearch
Search for the enclosing Delaunay convex hull	tsearchn
Extract Unique Rows	Unique

Package: geometry 0.5.2

geometry: Mesh Generation and Surface Tessellation

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