Signed Distance Fields 1.0
SDFScale2 Class Reference

Scaling node. More...

#include <sdf.h>

Inheritance diagram for SDFScale2:
SDFUnary2 SDFNode2

Public Member Functions

 SDFScale2 (SDFNode2 *, double)
 Create a scaling node.
 SDFScale2 (SDFNode2 *, const Vector2 &)
 Create a scaling node.
 SDFScale2 (const QJsonValue &json)
QJsonValue ToJson () const
 Conversion to JavaScript Object Notation.
virtual ~SDFScale2 ()
 Destructor.
double Signed (const Vector2 &) const
 Compute the signed distance.
QString GetShader (PrimitiveManager &, std::list< QString > &, bool &) const
 Compute the GLSL code to render the node.
QString GetCostShader (PrimitiveManager &, std::list< QString > &, bool &) const
 Compute the GLSL code to compute the cost of a call to sdf.
void ComputeCostSigned (const Vector2 &)
 Compute the number of reccursive calls to Signed().
virtual int Memory () const
 Return the size of a sub-tree.
virtual SDFNode2Copy () const
 Deep copy.
Public Member Functions inherited from SDFUnary2
 SDFUnary2 (SDFNode2 *)
 Create an unary planar node.
virtual ~SDFUnary2 ()
 Destroy the sub-tree.
virtual void SetShaderId (PrimitiveManager &primitives)
 Set up an id for generating GLSL code.
virtual void ResetShaderId ()
 Reset the id for generating GLSL code.
virtual double K () const
 Return the Lipschitz constant of the node.
virtual int Nodes () const
 Compute the number of nodes in the sub-tree.
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.
void ResetShaderId ()
 Reset the id for generating GLSL code.
virtual QString GetGradientShader (PrimitiveManager &, std::list< QString > &, bool &) const
 Compute the GLSL code to compute the gradient the sdf.
Box2 GetBox () const
 Return the bounding box of the node.

Protected Attributes

Vector2 scale
 Scaling vector.
Protected Attributes inherited from SDFUnary2
SDFNode2e = nullptr
 Sub-tree.
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 Public Member Functions inherited from SDFNode2
static SDFNode2FromJson (const QJsonValue &json)
 Conversion from JavaScript Object Notation.
Static Protected Attributes inherited from SDFNode2
static constexpr double Epsilon = 0.01
 Small constant used for bounding volumes.

Detailed Description

Scaling node.

Author
Lucie Fournier

Constructor & Destructor Documentation

◆ SDFScale2() [1/3]

SDFScale2::SDFScale2 ( SDFNode2 * n,
double s )
explicit

Create a scaling node.

Parameters
nSub-tree.
sScaling value.

◆ SDFScale2() [2/3]

SDFScale2::SDFScale2 ( SDFNode2 * n,
const Vector2 & s )
explicit

Create a scaling node.

Parameters
nSub-tree.
sScaling vector.

◆ SDFScale2() [3/3]

SDFScale2::SDFScale2 ( const QJsonValue & json)
explicit

Member Function Documentation

◆ ComputeCostSigned()

void SDFScale2::ComputeCostSigned ( const Vector2 & p)
virtual

Compute the number of reccursive calls to Signed().

Author
Hubert-Brierre Pierre

Reimplemented from SDFUnary2.

◆ GetCostShader()

QString SDFScale2::GetCostShader ( PrimitiveManager & primitives,
std::list< QString > & dependency,
bool & valid_glsl ) const
virtual

Compute the GLSL code to compute the cost of a call to sdf.

Author
Hubert-Brierre Pierre

Reimplemented from SDFUnary2.

◆ GetShader()

QString SDFScale2::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 SDFNode2.

◆ Memory()

int SDFScale2::Memory ( ) const
virtual

Return the size of a sub-tree.

Reimplemented from SDFNode2.

◆ Signed()

double SDFScale2::Signed ( const Vector2 & p) const
virtual

Compute the signed distance.

Parameters
pPoint.

Reimplemented from SDFUnary2.

◆ ToJson()

QJsonValue SDFScale2::ToJson ( ) const
virtual

Conversion to JavaScript Object Notation.

Reimplemented from SDFNode2.