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

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Documentation for package ‘TreeRingShape’ version 3.0.3

• DESCRIPTION file.
• User guides, package vignettes and other documentation.
• Package NEWS.

Help Pages

area	Return a area from polygon xy coordinates
circumference	Return circumference length of polygon line
classTreeRingShape-class	class of TreeRingShape
degree	Constant for conversion from degree to radian ####
dst	Return a vector of distances from original a point (0,0) from a matrix or data frame of xy coordinates
dstpp	Return vector for distance between adjacent two points
Ldeg360	Return a vector of center angle 0 to 360(degree) for x y coordinate vector
Llist2dataframe	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).
Lmove	Move the tree rings coordinates based on P00 (x,y movement coordinates).
Lplot	Plot a graphics of tree rings
Lplot2	Draw a graphics of tree rings by 1 ring (3*3 in a screen)
Lrad.plot	Check center angle of points to input order
Lrn	Return a ring number of tree ring polygons list (L) from year
Lsort	Sort x,y coordinates of a tree ring line with center angle of each point
Lsort_all	Sort x,y coordinates of tree ring lines with center angle of each point apply Lsort to list of tree ring lines
new_classTreeRingShape	Initial setting of a new classTreeRingShape (TR)
nstP	Return a vector of row numbers of points that have nearest center angle
plot_TreeRing	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_TreeRings_df	Plot tree rings from data fame This function draws Tree rings of a disk from data frame(x,y,year).
plot_TreeRing_df	plot_TreeRing_df Draw a Tree ring of a disk from data frame(x,y,year)
plot_year_RingArea	Plot and return data frame of year_disk area and year_Tree ring area
rdst	Return relative distance between two representative tree rings
rdst_MerginePlus	Return relative distance between two representative tree rings
ReadShapefile_P00	Return x,y coordinates of a tree ring center point (P00) from shape file of tree ring points
ReadShapefile_TreeRingPoints	Read a shape file of Tree Ring Points ( P : radial input and correction points)
ReadShapefile_TreeRings	Read Shapefile_TreeRings
seq_deg	Return a vector of sequence of angles between start and end angle 0 to pi -pi to 0
TR	A sample object of class TreeRingShape
TreeRingIndex	Calculate tree ring index from chronosequence data (year,growth)
TreeRingShape	Construct a object (TR) of classTreeRingShape
TreeRingsInterpolation	Interpolates tree ring between representative (manual input) tree rings with tree ring points
TreeRingsLines	Read representative tree ring lines from shape files
TreeRingsPoints	Read TreeRingsPoints shape file, check and save parameters
TR_	A sample object of class TreeRingShape, shapefile paths and column names only.
WriteShapefile_TreeRings	Write a shapefile of interpolated tree rings