The MeshKit-based surface evaluator for CAMAL meshing algorithms. More...

#include <meshkit/CAMALSurfEval.hpp>

Public Member Functions
	CAMALSurfEval (ModelEnt *ment)
	Constructor.
virtual	~CAMALSurfEval ()
	Destructor.
virtual double	area ()
	Area of the surface.
virtual void	bounding_box (double box_min[3], double box_max[3])
	Surface bounding box.
virtual void	move_to_surface (double &x, double &y, double &z)
	Move the point to the closest point on the surface.
virtual void	move_to_surface (double &x, double &y, double &z, double &u_guess, double &v_guess)
	Move the point to the closest point on the surface, based on a guess for the UV parameters.
virtual bool	normal_at (double x, double y, double z, double &nx, double &ny, double &nz)
	Compute the normal to the surface at a point.
virtual bool	normal_at (double x, double y, double z, double &u_guess, double &v_guess, double &nx, double &ny, double &nz)
	Compute the normal to the surface at a point, starting from a hint on the UV parameters.
virtual bool	is_planar ()
	Return whether the underlying surface is planar.
virtual bool	is_parametric ()
	Return whether the surface is parametric.
virtual bool	is_periodic_in_u (double &u_period)
	Return whether the surface is periodic in the U direction.
virtual bool	is_periodic_in_v (double &v_period)
	Return whether the surface is periodic in the V direction.
virtual void	get_param_range_u (double &u_low, double &u_high)
	Return the parameter range in U.
virtual void	get_param_range_v (double &v_low, double &v_high)
	Return the parameter range in V.
virtual bool	uv_from_position (double x, double y, double z, double &u, double &v)
	Get the parametric coordinates from the position.
virtual bool	uv_from_position (double x, double y, double z, double &u, double &v, double &cx, double &cy, double &cz)
	Get the parametric coordinates and closest point on a surface from a position.
virtual void	position_from_uv (double u, double v, double &x, double &y, double &z)
	Get the spatial coordinates given parametric coordinates.
virtual void	distortion_at_uv (double u, double v, double du[3], double dv[3])
	Get the parametric derivative vectors at a point.
virtual void	correct_orientation (std::vector< int > &loop_sizes, std::vector< int > &loops, std::vector< double > &bdy_coords)
	correct orientation of boundary loops for advancing front methods
Private Attributes
ModelEnt *	modelEnt
	ModelEnt associated with this evaluator.

Detailed Description

The MeshKit-based surface evaluator for CAMAL meshing algorithms.

This class implements surface evaluation functions required by CAMAL algorithms in terms of functions on ModelEnt objects (and, in some cases, functions in iGeom).

Definition at line 21 of file CAMALSurfEval.hpp.

Constructor & Destructor Documentation

CAMALSurfEval ( ModelEnt * ment )

Constructor.

Parameters:

ment	The ModelEnt to which this evaluator applies

Definition at line 10 of file CAMALSurfEval.cpp.

~CAMALSurfEval ( ) [virtual]

Destructor.

Definition at line 15 of file CAMALSurfEval.cpp.

Member Function Documentation

double area ( ) [virtual]

Area of the surface.

Definition at line 17 of file CAMALSurfEval.cpp.

void bounding_box	(	double	box_min[3],
		double	box_max[3]
	)		`[virtual]`

Surface bounding box.

Parameters:

box_min	Lower corner of the Cartesian-aligned box
box_max	Upper corner of the Cartesian-aligned box

Definition at line 22 of file CAMALSurfEval.cpp.

void correct_orientation	(	std::vector< int > &	loop_sizes,
		std::vector< int > &	loops,
		std::vector< double > &	bdy_coords
	)		`[virtual]`

correct orientation of boundary loops for advancing front methods

Parameters:

loop_sizes	sizes of loops
loops	indices of boundary points that form loops
bdy_coords	coordinates of boundary points, interleaved

Definition at line 173 of file CAMALSurfEval.cpp.

void distortion_at_uv	(	double	u,
		double	v,
		double	du[3],
		double	dv[3]
	)		`[virtual]`

Get the parametric derivative vectors at a point.

Parameters:

u	U value
v	V value
du	du/d(xyz)
dv	dv/d(xyz)

Definition at line 145 of file CAMALSurfEval.cpp.

void get_param_range_u	(	double &	u_low,
		double &	u_high
	)		`[virtual]`

Return the parameter range in U.

Parameters:

u_low	Lower bound on the parameter range
u_high	Upper bound on the parameter range

Definition at line 100 of file CAMALSurfEval.cpp.

void get_param_range_v	(	double &	v_low,
		double &	v_high
	)		`[virtual]`

Return the parameter range in V.

Parameters:

v_low	Lower bound on the parameter range
v_high	Upper bound on the parameter range

Definition at line 107 of file CAMALSurfEval.cpp.

bool is_parametric ( ) [virtual]

Return whether the surface is parametric.

Returns:: true if the surface is parametric

Definition at line 76 of file CAMALSurfEval.cpp.

bool is_periodic_in_u ( double & u_period ) [virtual]

Return whether the surface is periodic in the U direction.

Parameters:

u_period Period in the U direction if it's periodic in that direction

Returns:: true if the surface is periodic in the U direction

Definition at line 84 of file CAMALSurfEval.cpp.

bool is_periodic_in_v ( double & v_period ) [virtual]

Return whether the surface is periodic in the V direction.

Parameters:

v_period Period in the V direction if it's periodic in that direction

Returns:: true if the surface is periodic in the V direction

Definition at line 92 of file CAMALSurfEval.cpp.

bool is_planar ( ) [virtual]

Return whether the underlying surface is planar.

Returns:: true if the surface is planar

Definition at line 68 of file CAMALSurfEval.cpp.

void move_to_surface	(	double &	x,
		double &	y,
		double &	z
	)		`[virtual]`

Move the point to the closest point on the surface.

Parameters:

x	X point
y	Y point
z	Z point

Definition at line 30 of file CAMALSurfEval.cpp.

void move_to_surface	(	double &	x,
		double &	y,
		double &	z,
		double &	u_guess,
		double &	v_guess
	)		`[virtual]`

Move the point to the closest point on the surface, based on a guess for the UV parameters.

Parameters:

x	X point
y	Y point
z	Z point
u_guess	U hint
v_guess	V hint

Definition at line 39 of file CAMALSurfEval.cpp.

bool normal_at	(	double	x,
		double	y,
		double	z,
		double &	nx,
		double &	ny,
		double &	nz
	)		`[virtual]`

Compute the normal to the surface at a point.

Parameters:

x	X point
y	Y point
z	Z point
nx	X component of the normal
ny	Y component of the normal
nz	Z component of the normal

Returns:: Not sure, maybe whether or not the point is on the surface?

Definition at line 45 of file CAMALSurfEval.cpp.

bool normal_at	(	double	x,
		double	y,
		double	z,
		double &	u_guess,
		double &	v_guess,
		double &	nx,
		double &	ny,
		double &	nz
	)		`[virtual]`

Compute the normal to the surface at a point, starting from a hint on the UV parameters.

Parameters:

x	X point
y	Y point
z	Z point
u_guess	U hint
v_guess	V hint
nx	X component of the normal
ny	Y component of the normal
nz	Z component of the normal

Returns:: true if normal has unit length (normalized), false otherwise

Definition at line 56 of file CAMALSurfEval.cpp.

void position_from_uv	(	double	u,
		double	v,
		double &	x,
		double &	y,
		double &	z
	)		`[virtual]`

Get the spatial coordinates given parametric coordinates.

Parameters:

u	U coordinates
v	V coordinates
x	X point
y	Y point
z	Z point

Definition at line 138 of file CAMALSurfEval.cpp.

bool uv_from_position	(	double	x,
		double	y,
		double	z,
		double &	u,
		double &	v
	)		`[virtual]`

Get the parametric coordinates from the position.

Parameters:

x	X point
y	Y point
z	Z point
u	U coordinates
v	V coordinates

Returns:: true if successful, false otherwise

Definition at line 114 of file CAMALSurfEval.cpp.

bool uv_from_position	(	double	x,
		double	y,
		double	z,
		double &	u,
		double &	v,
		double &	cx,
		double &	cy,
		double &	cz
	)		`[virtual]`

Get the parametric coordinates and closest point on a surface from a position.

Parameters:

x	X point
y	Y point
z	Z point
u	U coordinates
v	V coordinates
cx	Closest point on the surface to the X point
cy	Closest point on the surface to the Y point
cz	Closest point on the surface to the Z point

Returns:: true if successful, false otherwise

Definition at line 125 of file CAMALSurfEval.cpp.

Member Data Documentation

ModelEnt* modelEnt [private]

ModelEnt associated with this evaluator.

Definition at line 178 of file CAMALSurfEval.hpp.

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

Public Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation