SDFQuadricCurveSetThick2 Class Reference

True signed distance field for a piecewise closed thick quadric curve. More...

#include <sdf.h>

Inheritance diagram for SDFQuadricCurveSetThick2:

Public Member Functions
	SDFQuadricCurveSetThick2 (const QuadricCurve2Set &, double)
	Create a rounded quadric curve primitive.
virtual	~SDFQuadricCurveSetThick2 ()
	Destructor.
Vector2	Project (const Vector2 &) const
	Project the project p onto the curve. This function is used by the SDFExtrusionNoise operator.
double	Signed (const Vector2 &) const
	Compute the signed Euclidean distance function.
QString	GetShader (PrimitiveManager *, std::list< QString > *, bool *) const
	Compute the GLSL code to render the node.
virtual int	Memory () const
	Return the size of a sub-tree.
virtual SDFNode2 *	Copy () const
	Return the size of a sub-tree.
Public Member Functions inherited from SDFQuadricCurveSet2
	SDFQuadricCurveSet2 (const QuadricCurve2Set &)
	Create a rounded quadric curve primitive.
	SDFQuadricCurveSet2 (const QVector< Vector2 > &)
	Create a rounded quadric curve primitive.
virtual	~SDFQuadricCurveSet2 ()
	Destructor.
Public Member Functions inherited from SDFEuclidean2
	SDFEuclidean2 ()
	Create an Euclidean primitive.
virtual	~SDFEuclidean2 ()
	Destructor.
Public Member Functions inherited from SDFPrimitive2
	SDFPrimitive2 ()
	Create a primitive.
virtual	~SDFPrimitive2 ()
	Destructor.
virtual QString	GetCostShader (PrimitiveManager *, std::list< QString > *, bool *) const
	Compute the GLSL code to compute the cost of a call to sdf.
virtual void	ComputeCostSigned (const Vector2 &)
	Compute the number of reccursive calls to Signed().
Public Member Functions inherited from SDFNode2
	SDFNode2 ()
	Create a generic node.
virtual	~SDFNode2 ()
	Destructor.
virtual Vector2	Gradient (const Vector2 &) const
	Compute the gradient of the field.
virtual bool	Inside (const Vector2 &) const
	Check if a point is inside or outside.
virtual QString	GetGradientShader (PrimitiveManager *, std::list< QString > *, bool *=nullptr) const
	Compute the GLSL code to compute the gradient the sdf.
virtual double	K () const
	Return the Lipschitz constant of the node.
Box2	GetBox () const
	Return the bounding box of the node.
virtual int	Nodes () const
	Compute the number of nodes in the sub-tree.

Protected Attributes
double	r
	Thickness.
Protected Attributes inherited from SDFQuadricCurveSet2
QuadricCurve2Set	curve
	Curve.
Protected Attributes inherited from SDFNode2
Box2	box = Box2::Infinity
	Box bounding the surface.
double	k = 1.0
	Lipschitz constant.
int	cost = 1
	Cost of the node.

Additional Inherited Members
Static Protected Attributes inherited from SDFNode2
static constexpr double	Epsilon = 0.01
	Small constant used for bounding volumes.

Detailed Description

True signed distance field for a piecewise closed thick quadric curve.

Constructor & Destructor Documentation

SDFQuadricCurveSetThick2()

SDFQuadricCurveSetThick2::SDFQuadricCurveSetThick2 ( const QuadricCurve2Set & c, double r )

explicit

Create a rounded quadric curve primitive.

Parameters

c	Quadric curve set.
r	radius

Member Function Documentation

Copy()

SDFNode2 * SDFQuadricCurveSetThick2::Copy ( ) const

virtual

Return the size of a sub-tree.

Reimplemented from SDFQuadricCurveSet2.

GetShader()

QString SDFQuadricCurveSetThick2::GetShader ( PrimitiveManager * primitives, std::list< QString > * dependency, bool * valid_glsl ) const

virtual

Compute the GLSL code to render the node.

Author

Hubert-Brierre Pierre

Reimplemented from SDFQuadricCurveSet2.

Memory()

int SDFQuadricCurveSetThick2::Memory ( ) const

virtual

Return the size of a sub-tree.

Reimplemented from SDFQuadricCurveSet2.

Project()

Vector2 SDFQuadricCurveSetThick2::Project

(

const Vector2 &

p

)

const

Project the project p onto the curve. This function is used by the SDFExtrusionNoise operator.

Parameters

p

point

Signed()

double SDFQuadricCurveSetThick2::Signed ( const Vector2 & p ) const

virtual

Compute the signed Euclidean distance function.

By default compute the signed distance to the bounding box of the primitive.

Parameters

p

Point.

Internally, call QuadricCurve::R(const Vector&) and take the square root.

Reimplemented from SDFQuadricCurveSet2.