Class stand

java.lang.Object
  |
  +--stand

public class stand

extends java.lang.Object

TreeGrOSS : class stand defines the forest stand information. This is the major class for several other classes of this package http://treegross.sourceforge.net

Author:

Juergen Nagel

Field Summary

(package private) double	bha Number of trees, basal area
(package private) double	bhaout Number of trees, basal area thinned
(package private) double	bhatotal total number of stems, basal area
(package private) corners[]	cpnt array for the corner points of the stand area max. 30
(package private) int	i
(package private) int	ncpnt number of corner points
(package private) double	nha Number of trees, basal area
(package private) double	nhaout Number of trees, basal area thinned
(package private) double	nhatotal total number of stems, basal area
(package private) int	nspecies number existing species
(package private) int	ntrees number of trees
(package private) double	size stand size
(package private) int	sizeoftr
(package private) species[]	sp array for species information max. 30
(package private) java.lang.String	standname name of the forest stand
(package private) tree[]	tr Maximum 2000 trees of the stand
(package private) int	year starting year or year of simualtion

Constructor Summary

stand()

Method Summary

(package private) void	addcornerpoint(java.lang.String no, double x, double y, double z) addcorner points
(package private) void	addName(java.lang.String na) add stand name to object
(package private) void	addsize(double ha) initialize stand area size (ha)
(package private) void	addtree(int co, java.lang.String num, int age, int out, double d, double h, double cb, double cw, double si, double x, double y, double z, int zb) add a tree to the stand
(package private) double	area() st.area calculates the stand size according to the corner points
(package private) void	descspecies() calculates the species values on a stand level
(package private) double	getDmax(int spe) get dmax by of residual trees
(package private) double	getVha(int spe) get volume return the total volume (code=0) or species volume
(package private) double	getVhaResidual(int spe) get volume by of residual trees
(package private) double	getVhaTargetDiameter(int spe) get volume harvested by target diameter of this year
(package private) double	getVhaThinning(int spe) get volume by thinning of this year
(package private) void	grow(int period, boolean regenGrowth) st.grow starts a growth cycle for the class stand, expects an integer for the number of years of one growing cycle.
(package private) void	initspecies() detect species and initialize tree species
(package private) double	overlap(double r1, double r2, double e) calculate overlap area of two circle only if they overlap
(package private) void	sortbyd() sort trees by d
(package private) void	sortbyy() sort trees by y-coordinate, this is for the graphical display
(package private) void	standinfo() total stand information resp. total stand values

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

ntrees

int ntrees

number of trees

nspecies

int nspecies

number existing species

ncpnt

int ncpnt

number of corner points

standname

java.lang.String standname

name of the forest stand

size

double size

stand size

nha

double nha

Number of trees, basal area

bha

double bha

Number of trees, basal area

nhaout

double nhaout

Number of trees, basal area thinned

bhaout

double bhaout

Number of trees, basal area thinned

nhatotal

double nhatotal

total number of stems, basal area

bhatotal

double bhatotal

total number of stems, basal area

year

int year

starting year or year of simualtion

i

int i

tr

tree[] tr

Maximum 2000 trees of the stand

sp

species[] sp

array for species information max. 30

cpnt

corners[] cpnt

array for the corner points of the stand area max. 30

sizeoftr

int sizeoftr

Constructor Detail

stand

public stand()

Method Detail

addtree

void addtree(int co,
             java.lang.String num,
             int age,
             int out,
             double d,
             double h,
             double cb,
             double cw,
             double si,
             double x,
             double y,
             double z,
             int zb)

add a tree to the stand

addName

void addName(java.lang.String na)

add stand name to object

addsize

void addsize(double ha)

initialize stand area size (ha)

addcornerpoint

void addcornerpoint(java.lang.String no,
                    double x,
                    double y,
                    double z)

addcorner points

sortbyd

void sortbyd()

sort trees by d

sortbyy

void sortbyy()

sort trees by y-coordinate, this is for the graphical display

standinfo

void standinfo()

total stand information resp. total stand values

getVha

double getVha(int spe)

get volume return the total volume (code=0) or species volume

getVhaTargetDiameter

double getVhaTargetDiameter(int spe)

get volume harvested by target diameter of this year

getVhaThinning

double getVhaThinning(int spe)

get volume by thinning of this year

getVhaResidual

double getVhaResidual(int spe)

get volume by of residual trees

getDmax

double getDmax(int spe)

get dmax by of residual trees

initspecies

void initspecies()

detect species and initialize tree species

descspecies

void descspecies()

calculates the species values on a stand level

grow

void grow(int period,
          boolean regenGrowth)

st.grow starts a growth cycle for the class stand, expects an integer for the number of years of one growing cycle. Should be between 1 -5. The second parameter controlls the regenration growth and can be set as either true or false

area

double area()

st.area calculates the stand size according to the corner points

overlap

double overlap(double r1,
               double r2,
               double e)

calculate overlap area of two circle only if they overlap