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Functions
double	sumDeviation (const double *data, int n)

double *	sumDevAry3 (double *data)

int	maxElmtIdx (double *data, int n)

int *	sortedIndex (const double *arr, int n)

double	getArea (struct Poly &poly)

int	indexFromProb (float *CDF, double roll, int size)

int	indexFromProb_and_P32Status (float *CDF, double roll, int famSize, int cdfSize, int &cdfIdx)

void	adjustCDF_and_famProb (float &CDF, float &famProbability, int &cdfSize, int idx2Remove)

float *	createCDF (float *famProb, int size)

float	truncatedPowerLaw (float randomNum, float emin, float emax, float alpha)

int	cdfIdxFromFamNum (float CDF, bool p32Status, int famIdx)

void	OR (bool dest, bool src)

Function Documentation

§ adjustCDF_and_famProb()

void adjustCDF_and_famProb	(	float *&	CDF,
		float *&	famProbability,
		int &	cdfSize,
		int	idx2Remove
	)

Adjusts the CDF and the famProb array. Used with P32 stopping contdition (see input file) When a family's P32 requrement is met, the CDF is adjusted to remove that family from the array. The famProb is also adjusted in the same way. Arg 1: Pointer to CDF array Arg 2: Pointer to famProb array Arg 3: Number of elements in CDF array Arg 4: Index to the element in the famProb array which is being removed

Definition at line 269 of file mathFunctions.cpp.

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§ cdfIdxFromFamNum()

int cdfIdxFromFamNum	(	float *	CDF,
		bool *	p32Status,
		int	famIdx
	)

Given a family number, return its corresponding CDF array index Arg 1: CDF array Arg 2: p32Status array Arg 3: Family index of family whos CDF index to return Return: Index of CDF which belongs to shapeFamily[famIdx]

Definition at line 221 of file mathFunctions.cpp.

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§ createCDF()

float* createCDF	(	float *	famProb,
		int	size
	)

Creates CDF from famProb[] Arg 1: Pointer to famProb array (see input file, and readInput()) Arg 2: Size of array

Definition at line 244 of file mathFunctions.cpp.

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§ getArea()

double getArea ( struct Poly & poly )

Calculate exact area of polygon (after truncation) Summar of algorithm: 1: Creates a point on the inside of the polygon (insidePt) 2: Uses 'insidePt' to create vectors to all outside vertices, breaking the polygon into triangles 3: Uses .5 * (magnitude of cross product) for each triangle for area calculation 4: Sums the areas for each trianlge for total area of polygon Arg 1: Polygon Return: Area of polygon

Definition at line 110 of file mathFunctions.cpp.

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§ indexFromProb()

int indexFromProb	(	float *	CDF,
		double	roll,
		int	size
	)

CDF is 1 to 1 and algined with the stochastic family shapes array (std vector). This chooses the family index based on a random roll (random number between 0 and 1) and 'famProb' Arg 1: CDF of shape families based on famProb array in input file Arg 2: Random number between 0 and 1 Arg 3: Number of elements in 'CDF' array Return: Index to family based on the probability famProb

Definition at line 166 of file mathFunctions.cpp.

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§ indexFromProb_and_P32Status()

int indexFromProb_and_P32Status	(	float *	CDF,
		double	roll,
		int	famSize,
		int	cdfSize,
		int &	cdfIdx
	)

Use with fracture intensity (p32) stopping option Arg 1: Pointer to CDF array Arg 2: Random variable between 0 and 1 Arg 3: Number of stochastic families Arg 4: Number of elements in CDF array Arg 5: OUTPUT, index of CDF element which was chosen randomly Return: Index of chosen family based on its family probability, and p32Status (avoids inserting a fracture from a family which has already met it's fracture intensity requrement)

Definition at line 187 of file mathFunctions.cpp.

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§ maxElmtIdx()

int maxElmtIdx	(	double *	v,
		int	n
	)

Used to find index of element with max value from array4 Used in intersectionChecking() Arg 1: Array of doubles Arg 2: Size of array Return: Max element's array index

If elements happen to be equal, returns the first one

Definition at line 68 of file mathFunctions.cpp.

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§ OR()

void OR	(	bool *	dest,
		bool *	src
	)

inline

Used for ORing arrays of bool for boundary face codes Expectes array size is 6. ORs dest with src, then saves to dest. e.g destArray = destArray ^ srcArray

Arg 1: dest array Arg 2: souce array

Definition at line 24 of file mathFunctions.h.

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§ sortedIndex()

int* sortedIndex	(	const double *	v,
		int	n
	)

Similar to mathematica's Ordering[] funct. Arg 1: Pointer to array of doubles Arg 2: Size of array, number of elements Return: Array of sorted indicies to elements in 'v' sorted smallest to largest

Definition at line 88 of file mathFunctions.cpp.

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§ sumDevAry3()

double* sumDevAry3 ( double * v )

Used in intersectionChecking() How function is used: v is a pointer to an array of 4 points, each point contains x, y, and z coordinates The 4 sumDeviation is computed on all points' x, y, and z coord. An array of three elements is returned containing the sum deviation of all x's, all y's, and all z's

Arg 1: Array of 12 elements: 4 points, {x1, y1, z1, ... , x4, y4, z4} Return: Array of 3 elements x,y,z with each stdDev, respectively

Definition at line 46 of file mathFunctions.cpp.

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§ sumDeviation()

double sumDeviation	(	const double *	v,
		int	n
	)

There are several spots in the code which used to use standard deviation to know how to sort a list of points. To increase performance, the standard deviation is now calculated without the square root and division by N elements. Arg 1: Pointer to array which we need the sum deviation of Arg 2: Number of elements in array pointed to by arg 1 Return: The sum-deviation of array 'v'

Definition at line 19 of file mathFunctions.cpp.

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§ truncatedPowerLaw()

float truncatedPowerLaw	(	float	randomNum,
		float	min,
		float	max,
		float	alpha
	)

Distrubution function for truncated power-law randomNum must be between 0 and 1 This distribution should be sampled uniformly between 0 and 1 to produce a truncated power-law distribution Arg 1: Random variable between 0 and 1 Arg 2: Minimum number which can be returned from the distribution Arg 3: Maximum number which can be returned from the distribution Arg 4: Power-law's alpha Return: Random float adhering to the truncated power law distribution

Definition at line 208 of file generatingPoints.cpp.

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