parSort-class {TapeS}

An S4 class to represent the parameters for tree assorting.

Description

This class represents one or multiple parameter sets holding the necessary information to specify the assortment process.

using indices i and j to subset

Usage

## S4 method for signature 'parSort,ANY,ANY,ANY'
x[i, j, ..., drop = FALSE]

Arguments

x

object from which to extract

i

index i

j

index j

...

not currently used

drop

drop dimensions, defaults to FALSE

Details

The assortment process is defined by several parameters. These follow the specification of its ancestor BDAT , but are extended to allow for fix length assortments at the tree top (industrial wood / pulp wood) and relaxes transport length and stump height.

• stH: stump height, defaults to 0, i.e. 1% of tree height

• Lxh: length of unusable wood at stem foot [m], defaults to 0 (X-Holz)

• Hkz: indicator for tree top, 0 - normal, 1 - Wipfelbruch, 2 - Gipfelbruch

  • 0 => H=H (default)

  • 1 => H=H+2

  • 2 => DBH < 30 => H=DBH; dbh > 30 => H = 30 + (DBH-30) * 0.3

• Skz: indicator for stem type, defaults to 0

  • 0 => conifer trees => no assortment restriction; deciduous trees => no assortments

  • 1 => monopodial deciduous trees => Hsh = 0.7*H

  • 2 => branching between dbh and 7m => Hsh = 5m

  • 3 => crown base < 3m => Hsh=0.1

  • 4 => dead or broken stem => Az = H*0.7

  • 5 => dead tree => non-usable wood

• Hsh: usable stem height, defaults to 0, i.e. 0.7*H

• Zsh: minimum cutting diameter under bark for stem wood [cm], defaults to 0, using parameter Az if estimated length < maximum length (i.e. 20m)

• Lsh: length of stem wood, defaults to 0, i.e. length unrestricted

• Zab: minimum cutting diameter under bark for top segment [cm], defaults to 0, i.e. 14cm under bark

• Lab: length of top segment, defaults to 0, i.e. length unrestricted

• Az: minimum cutting diameter over bark [cm], defaults to 0, using an exponential function given DBH to estimate Az

• LIh: length of industrial wood [m], defaults to 0, i.e. length unrestricted

• trL: maximum transport length of assortments, defaults to 0, i.e. 19m

• fixN: number of fixed length assortments at stem foot, defaults to 0 (no fixed length assortments, irrespective of other fix* parameters)

• fixZ: mininum diameter under bark for fixed length assortment at stem foot, defaults to 0

• fixL: length of fixed length assortment at stem foot, defaults to 0

• fixA: fixed length assortement add-on in [cm], defaults to 0

• fixR: fixed length assortement add-on in [%], defaults to 0

Value

a part of the original object

Methods (by generic)

• x[i: subsetting for class 'parSort'

Slots

stH

stump height

Lxh

length of unusable wood at stem foot, see details

Hkz

height indicator, see details

Skz

stem indicator, see details

Hsh

height of stem wood, see details

Zsh

cutting diameter of stem wood, see details

Lsh

length of stem wood, see details

Zab

cutting diameter of upper trunk, see details

Lab

length of upper trunk, see details

Az

minimal cutting diameter, defaults to 7cm, see details

LIh

length of industrial wood, see details

trL

maximum transport length

fixN

number of fixed length assortments, see details

fixL

length of fixed length assortments, see details

fixZ

cutting diameter of fixed length assortments, see details

fixA

absolute add-on for good measure of fixed length assortments, see details

fixR

relative add-on for good measure of fixed length assortments, see details

Examples

parSort()
parSort(Lxh=1)
parSort(n=2)