mesh::CrossField Class Reference

#include <meshcrossfield.h>

Collaboration diagram for mesh::CrossField:

Classes
struct	Options

Public Member Functions
	CrossField ()=default
bool	build (const QRectF &bbox, const QVector< QVector< QPointF > > &alignedPolylines, const Options &opts)
	Solve the field over bbox with Dirichlet data along alignedPolylines (>= 2 points each; a closed ring passes its closing edge explicitly or via last==first). Returns false when pitch <= 0, bbox is empty, no polyline pins any cell, or the grid would exceed 4e6 cells.
void	setConstant (double thetaDeg)
	Constant field: every query returns thetaDeg (folded). valid() → true.
bool	valid () const noexcept
int	cols () const noexcept
int	rows () const noexcept
int	sweepsUsed () const noexcept
double	thetaAt (double x, double y) const
	Field angle in radians, folded to [0, π/2). Clamps outside the grid.
void	directionsAt (double x, double y, QPointF d[4]) const
	The four unit directions θ, θ+90°, θ+180°, θ+270° at (x, y).
QPointF	cellU (int col, int row) const
	Raw representation vector (cos 4θ, sin 4θ) at a cell (tests).
bool	cellPinned (int col, int row) const

Constructor & Destructor Documentation

CrossField()

mesh::CrossField::CrossField ( )

default

Member Function Documentation

build()

bool mesh::CrossField::build	(	const QRectF &	bbox,
		const QVector< QVector< QPointF > > &	alignedPolylines,
		const Options &	opts
	)

Solve the field over bbox with Dirichlet data along alignedPolylines (>= 2 points each; a closed ring passes its closing edge explicitly or via last==first). Returns false when pitch <= 0, bbox is empty, no polyline pins any cell, or the grid would exceed 4e6 cells.

Here is the caller graph for this function:

cellPinned()

bool mesh::CrossField::cellPinned	(	int	col,
		int	row
	)		const

cellU()

QPointF mesh::CrossField::cellU	(	int	col,
		int	row
	)		const

Raw representation vector (cos 4θ, sin 4θ) at a cell (tests).

cols()

int mesh::CrossField::cols ( ) const

inlinenoexcept

directionsAt()

void mesh::CrossField::directionsAt	(	double	x,
		double	y,
		QPointF	d[4]
	)		const

The four unit directions θ, θ+90°, θ+180°, θ+270° at (x, y).

Here is the call graph for this function:

Here is the caller graph for this function:

rows()

int mesh::CrossField::rows ( ) const

inlinenoexcept

setConstant()

void mesh::CrossField::setConstant

(

double

thetaDeg

)

Constant field: every query returns thetaDeg (folded). valid() → true.

Here is the caller graph for this function:

sweepsUsed()

int mesh::CrossField::sweepsUsed ( ) const

inlinenoexcept

thetaAt()

double mesh::CrossField::thetaAt	(	double	x,
		double	y
	)		const

Field angle in radians, folded to [0, π/2). Clamps outside the grid.

Here is the caller graph for this function:

valid()

bool mesh::CrossField::valid ( ) const

inlinenoexcept

---

The documentation for this class was generated from the following files:

• /home/runner/work/openswmm.gui/openswmm.gui/include/mesh/meshcrossfield.h
• /home/runner/work/openswmm.gui/openswmm.gui/src/mesh/meshcrossfield.cpp