Package net.simplace.sim.components.experimental.intercropping

Class IntercroppingFunctions

java.lang.Object

net.simplace.sim.components.experimental.intercropping.IntercroppingFunctions

public class IntercroppingFunctions
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final record	IntercroppingFunctions.BelowGroundAllocationFactorsResult

Constructor Summary

Constructors

Constructor	Description
IntercroppingFunctions()

Method Summary

Modifier and Type	Method	Description
static IntercroppingFunctions.BelowGroundAllocationFactorsResult	BelowgroundAllocationFactors(Double[] r1, Double[] r2)	Calculates belowground allocation factors from given root information per layer of two plants Root information can be root length density per layer or root restriction factor or any information that reflects root uptake capacity.
static double	calcInterceptionFractionOneCrop(double width_strip, double width_path, double k, double lai, double height)	Calculates radiation fraction that is intercepted by the crop if only one crop is present
static Double[]	calcInterceptionFractions(double width_1, double space_1, double k_1, double lai_1, double height_1, double width_2, double space_2, double k_2, double lai_2, double height_2)	Calculates radiation interception fractions for two crops
static Double[]	calcInterceptionFractionsSorted(double width_1, double space_1, double k_1, double lai_1, double height_1, double width_2, double space_2, double k_2, double lai_2, double height_2)	Calculates radiation interception for two crops where height of first crop is bigger than of second
static Double[][]	calcRowAndColSums(Double[][] m)	Calculates sum of rows, cols and total of a 2-dimensional array
static double	calcSoilInterceptionFractionPath(double width_strip, double width_path, double k, double lai, double height)	Calculates radiation fraction that is intercepted by the soil
static double	calcSoilInterceptionFractionStrip(double width_strip, double width_path, double k, double lai, double height)	Calculates radiation fraction that is intercepted by the crop
static double	calcViewFactor(double height, double width)	Calculates view factor
static Double[][][]	calcWeightsMatrix(Double[][] m)	Divides the elements of a matrix by its total sum and calculates row- and colsums.
static Double[]	getColSums(Double[][] sums)	Retrieves the colums calculated by calcRowAndColSums
static Double[]	getRowSums(Double[][] sums)	Retrieves the rowsums calculated by calcRowAndColSums
static Double	getTotalSum(Double[][] sums)	Retrieves the total sum calculated by calcRowAndColSums
static Double[]	getWeightsColsum(Double[][][] weights)	Retrieves the colsums for a weight matrix
static Double[][]	getWeightsMatrix(Double[][][] weights)	Retrieves the weights matrix
static Double[]	getWeightsMatrixRow(Double[][][] weights, int row)	Retrieves a specific row from the weights matrix
static Double[]	getWeightsRowsum(Double[][][] weights)	Retrieves the rowsums for a weight matrix

Methods inherited from class java.lang.Object

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

Constructor Details

IntercroppingFunctions

public IntercroppingFunctions()

Method Details

calcRowAndColSums

public static Double[][] calcRowAndColSums(Double[][] m)

Calculates sum of rows, cols and total of a 2-dimensional array

Parameters:

m - 2-dimensional Array (1st index rows, 2nd index cols)

Returns:

Array of rowsums, colsums and total sum

getRowSums

public static Double[] getRowSums(Double[][] sums)

Retrieves the rowsums calculated by calcRowAndColSums

Parameters:

sums - Array of rowsums, colsums and total sum

Returns:

Array of rowsums

See Also:

• calcRowAndColSums(java.lang.Double[][])

getColSums

public static Double[] getColSums(Double[][] sums)

Retrieves the colums calculated by calcRowAndColSums

Parameters:

sums - Array of rowsums, colsums and total sum

Returns:

Array of colsums

See Also:

• calcRowAndColSums(java.lang.Double[][])

getTotalSum

public static Double getTotalSum(Double[][] sums)

Retrieves the total sum calculated by calcRowAndColSums

Parameters:

sums - Array of rowsums, colsums and total sum

Returns:

total sum

See Also:

• calcRowAndColSums(java.lang.Double[][])

calcWeightsMatrix

public static Double[][][] calcWeightsMatrix(Double[][] m)

Divides the elements of a matrix by its total sum and calculates row- and colsums.

Parameters:

m - 2-dimensional Array

Returns:

weights matrix as well as weighted rowsums and colsums

See Also:

• getWeightsMatrix(java.lang.Double[][][])
• getWeightsMatrixRow(java.lang.Double[][][],int)
• getWeightsPerRow
• getWeightsColsum(java.lang.Double[][][])

getWeightsMatrix

public static Double[][] getWeightsMatrix(Double[][][] weights)

Retrieves the weights matrix

Parameters:

weights - as calculated by calcWeightsMatrix

Returns:

the 2-dimensional weighted matrix

getWeightsMatrixRow

public static Double[] getWeightsMatrixRow(Double[][][] weights,
 int row)

Retrieves a specific row from the weights matrix

Parameters:

weights - as calculated by calcWeightsMatrix

row - number of the row to retrieve

Returns:

a row from the weighted matrix

See Also:

• calcWeightsMatrix(java.lang.Double[][])

getWeightsRowsum

public static Double[] getWeightsRowsum(Double[][][] weights)

Retrieves the rowsums for a weight matrix

Parameters:

weights - as calculated by calcWeightsMatrix

Returns:

an 1-dimensional Array with sums for each row

getWeightsColsum

public static Double[] getWeightsColsum(Double[][][] weights)

Retrieves the colsums for a weight matrix

Parameters:

weights - as calculated by calcWeightsMatrix

Returns:

an 1-dimensional Array with sums for each column

BelowgroundAllocationFactors

public static IntercroppingFunctions.BelowGroundAllocationFactorsResult BelowgroundAllocationFactors(Double[] r1,
 Double[] r2)

Calculates belowground allocation factors from given root information per layer of two plants Root information can be root length density per layer or root restriction factor or any information that reflects root uptake capacity.

Parameters:

r1 - root information of plant 1

r2 - root information of plant 2

Returns:

factors per layer as well as total factor for each plant

calcViewFactor

public static double calcViewFactor(double height,
 double width)

Calculates view factor

Parameters:

height -

width -

Returns:

view factor

calcSoilInterceptionFractionPath

public static double calcSoilInterceptionFractionPath(double width_strip,
 double width_path,
 double k,
 double lai,
 double height)

Calculates radiation fraction that is intercepted by the soil

Parameters:

width_strip - Width of strip

width_path - Width of path

k - Extinction coefficient

lai - Leaf area index

height - Height of crop

Returns:

fraction intercepted by the soil

calcSoilInterceptionFractionStrip

public static double calcSoilInterceptionFractionStrip(double width_strip,
 double width_path,
 double k,
 double lai,
 double height)

Calculates radiation fraction that is intercepted by the crop

Parameters:

width_strip - Width of strip

width_path - Width of path

k - Extinction coefficient

lai - Leaf area index

height - Height of crop

Returns:

fraction intercepted by the crop

calcInterceptionFractionOneCrop

public static double calcInterceptionFractionOneCrop(double width_strip,
 double width_path,
 double k,
 double lai,
 double height)

Calculates radiation fraction that is intercepted by the crop if only one crop is present

Parameters:

width_strip - Width of strip

width_path - Width of path

k - Extinction coefficient

lai - Leaf area index

height - Height of crop

Returns:

fraction intercepted by the crop

calcInterceptionFractionsSorted

public static Double[] calcInterceptionFractionsSorted(double width_1,
 double space_1,
 double k_1,
 double lai_1,
 double height_1,
 double width_2,
 double space_2,
 double k_2,
 double lai_2,
 double height_2)

Calculates radiation interception for two crops where height of first crop is bigger than of second

Parameters:

width_1 - Width of first crop's strip

space_1 - Space of first crop

k_1 - Extinction coefficient of first crop

lai_1 - LAI of first crop

height_1 - Height of first crop

width_2 - Width of second crop's strip

space_2 - Space of second crop

k_2 - Extinction coefficient of second crop

lai_2 - LAI of second crop

height_2 - Height of second crop

Returns:

fractions as array with two entries

calcInterceptionFractions

public static Double[] calcInterceptionFractions(double width_1,
 double space_1,
 double k_1,
 double lai_1,
 double height_1,
 double width_2,
 double space_2,
 double k_2,
 double lai_2,
 double height_2)

Calculates radiation interception fractions for two crops

Parameters:

width_1 - Width of first crop's strip

space_1 - Space of first crop

k_1 - Extinction coefficient of first crop

lai_1 - LAI of first crop

height_1 - Height of first crop

width_2 - Width of second crop's strip

space_2 - Space of second crop

k_2 - Extinction coefficient of second crop

lai_2 - LAI of second crop

height_2 - Height of second crop

Returns:

fractions as array with two entries