geometry.cc File Reference

Helpful geometric and mathematical functions. More...

#include "globals.hh"

Go to the source code of this file.

Functions
bool	in_domain (double x, double y, double z)
	True if the point is in the domain, False otherwise. More...
double *	CrossProduct (double a[], double b[])
	Cross product of two points in 3D. More...
bool	SameSide (double p1[], double p2[], double a[], double b[])
	True if two points are in the same half-plane defined by other two points. More...
bool	PointInTriangle (double p[], double a[], double b[], double c[])
	True if point lies in the triangle. More...
double	porosity (int ***amat)
	Calculates porosity. More...

Detailed Description

Helpful geometric and mathematical functions.

Author

Pavel Ferkl

Definition in file geometry.cc.

Function Documentation

CrossProduct()

double* CrossProduct	(	double	a[],
		double	b[]
	)

Cross product of two points in 3D.

Parameters

[in]	a	1st point
[in]	b	2nd point

Definition at line 20 of file geometry.cc.

References globals::cp.

Referenced by SameSide().

in_domain()

bool in_domain	(	double	x,
		double	y,
		double	z
	)

True if the point is in the domain, False otherwise.

Parameters

[in]	x	x position
[in]	y	x position
[in]	z	x position

Definition at line 9 of file geometry.cc.

References globals::nz.

Referenced by importFoamSkeleton(), makeEdgeStruts(), makeNodeStruts(), and saveToGnuplot().

PointInTriangle()

bool PointInTriangle	(	double	p[],
		double	a[],
		double	b[],
		double	c[]
	)

True if point lies in the triangle.

Parameters

[in]	p	the point
[in]	a	1st point defining triangle
[in]	b	2nd point defining triangle
[in]	c	3rd point defining triangle

Definition at line 56 of file geometry.cc.

Referenced by makeEdgeStruts().

porosity()

double porosity

(

int ***

amat

)

Calculates porosity.

Parameters

[in]

amat

matrix

Definition at line 70 of file geometry.cc.

References globals::nx, globals::ny, globals::nz, and constants::por.

Referenced by main(), and phys_prop::porosity().

SameSide()

bool SameSide	(	double	p1[],
		double	p2[],
		double	a[],
		double	b[]
	)

True if two points are in the same half-plane defined by other two points.

Parameters

[in]	p1	1st point
[in]	p2	2nd point
[in]	a	1st point defining half-plane
[in]	b	2nd point defining half-plane

Definition at line 32 of file geometry.cc.

References CrossProduct().