Package: TreeRingShape 3.0.5

TreeRingShape: Recording Tree-Ring Shapes of Tree Disks with Manual Digitizing and Interpolating Model

Record all tree-ring Shapefile of tree disk with GIS soft 'Qgis' and interpolating model from high resolution tree disk image.

Authors:Megumi ISHIDA [aut, cre, cph]

TreeRingShape_3.0.5.tar.gz
TreeRingShape_3.0.5.zip(r-4.7)TreeRingShape_3.0.5.zip(r-4.6)TreeRingShape_3.0.5.zip(r-4.5)
TreeRingShape_3.0.5.tgz(r-4.6-any)TreeRingShape_3.0.5.tgz(r-4.5-any)
TreeRingShape_3.0.5.tar.gz(r-4.7-any)TreeRingShape_3.0.5.tar.gz(r-4.6-any)
TreeRingShape_3.0.5.tgz(r-4.6-emscripten)
manual.pdf |manual.html✨
card.svg |card.png
TreeRingShape/json (API)
NEWS

# Install 'TreeRingShape' in R:

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

Bug tracker:https://github.com/ishidamgm/treeringshape/issues

Pkgdown/docs site:https://ishidamgm.github.io

Datasets:

TR - A sample object of class TreeRingShape
TR_ - A sample object of class TreeRingShape, shapefile paths and column names only.

On CRAN:

3.70 score 606 downloads 33 exports 22 dependencies

Last updated from:4a0749013d. Checks:7 NOTE, 2 OK. Indexed: yes.

Target	Result	Time
linux-devel-x86_64	NOTE	147
source / vignettes	OK	202
linux-release-x86_64	NOTE	131
macos-release-arm64	NOTE	173
macos-oldrel-arm64	NOTE	217
windows-devel	NOTE	96
windows-release	NOTE	86
windows-oldrel	NOTE	117
wasm-release	OK	124

Exports:area circumference degree DiskInfo dst dstpp Ldeg360 Llist2dataframe Lmove Lplot Lplot2 Lrad.plot Lrn Lsort Lsort_all new_classTreeRingShape nstP plot_TreeRing plot_TreeRing_df plot_TreeRings_df plot_year_RingArea rdst rdst_MerginePlus ReadShapefile_P00 ReadShapefile_TreeRingPoints ReadShapefile_TreeRings seq_deg TreeRingIndex TreeRingShape TreeRingsInterpolation TreeRingsLines TreeRingsPoints WriteShapefile_TreeRings

Dependencies:class classInt cli DBI e1071 glue KernSmooth lifecycle magrittr MASS pillar pkgconfig proxy Rcpp rlang s2 sf tibble units utf8 vctrs wk

TreeRingShape

Megumi ISHIDA

Rendered fromTreeRingShape.Rmdusingknitr::rmarkdownon May 11 2026.

Last update: 2025-05-28
Started: 2024-03-07

Citation

Development and contributors

Readme and manuals

Help Manual

Help page	Topics
Return a area from polygon xy coordinates	area
Return circumference length of polygon line	circumference
class of TreeRingShape	classTreeRingShape-class
Constant for conversion from degree to radian ####	degree
Return information for tree disk analysed from TreeRingShape class	DiskInfo
Return a vector of distances from original a point (0,0) from a matrix or data frame of xy coordinates	dst
Return vector for distance between adjacent two points	dstpp
Return a vector of center angle 0 to 360(degree) for x y coordinate vector	Ldeg360
Convert from a list of tree rings polygons (L) to data frame to a data frame with no.,year,x,y,r(radius),radian(center angle),degree. The data frame is sorted by degree(0 to 360).	Llist2dataframe
Move the tree rings coordinates based on P00 (x,y movement coordinates).	Lmove
Plot a graphics of tree rings	Lplot
Draw a graphics of tree rings by 1 ring (3*3 in a screen)	Lplot2
Check center angle of points to input order	Lrad.plot
Return a ring number of tree ring polygons list (L) from year	Lrn
Sort x,y coordinates of a tree ring line with center angle of each point	Lsort
Sort x,y coordinates of tree ring lines with center angle of each point apply Lsort to list of tree ring lines	Lsort_all
Initial setting of a new classTreeRingShape (TR)	new_classTreeRingShape
Return a vector of row numbers of points that have nearest center angle	nstP
Draw a plot of tree rings This function draws Tree rings of a disk from x, y list(x,y) with name of year.	plot_TreeRing
plot_TreeRing_df Draw a Tree ring of a disk from data frame(x,y,year)	plot_TreeRing_df
Plot tree rings from data fame This function draws Tree rings of a disk from data frame(x,y,year).	plot_TreeRings_df
Plot and return data frame of year_disk area and year_Tree ring area	plot_year_RingArea
Return relative distance between two representative tree rings	rdst
Return relative distance between two representative tree rings	rdst_MerginePlus
Return x,y coordinates of a tree ring center point (P00) from shape file of tree ring points	ReadShapefile_P00
Read a shape file of Tree Ring Points ( P : radial input and correction points)	ReadShapefile_TreeRingPoints
Read Shapefile_TreeRings	ReadShapefile_TreeRings
Return a vector of sequence of angles between start and end angle 0 to pi -pi to 0	seq_deg
A sample object of class TreeRingShape	TR
A sample object of class TreeRingShape, shapefile paths and column names only.	TR_
Calculate tree ring index from chronosequence data (year,growth)	TreeRingIndex
Construct a object (TR) of classTreeRingShape	TreeRingShape
Interpolates tree ring between representative (manual input) tree rings with tree ring points	TreeRingsInterpolation
Read representative tree ring lines from shape files	TreeRingsLines
Read TreeRingsPoints shape file, check and save parameters	TreeRingsPoints
Write a shapefile of interpolated tree rings	WriteShapefile_TreeRings