Signed Distance Fields 1.0
SDFRevolutionSymmetry2 Class Reference

Revolution symmetry operator. More...

#include <sdf.h>

Inheritance diagram for SDFRevolutionSymmetry2:
SDFUnary2 SDFNode2

Public Member Functions

 SDFRevolutionSymmetry2 (SDFNode2 *, int)
 Create a planar symmetry node.
virtual ~SDFRevolutionSymmetry2 ()
 Destructor.
double Signed (const Vector2 &) const
 Compute the signed distance function.
QString GetShader (PrimitiveManager &, std::list< QString > &, bool &) const
 Compute the GLSL code to render the node.
virtual int Memory () const
 Compute the memory used by this node.
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 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().
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.
virtual QJsonValue ToJson () const
 Conversion to JavaScript Object Notation.
Box2 GetBox () const
 Return the bounding box of the node.

Protected Attributes

int n
 Rotation matrix.
double alpha
 Angle.
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

Revolution symmetry operator.

Constructor & Destructor Documentation

◆ SDFRevolutionSymmetry2()

SDFRevolutionSymmetry2::SDFRevolutionSymmetry2 ( SDFNode2 * node,
int n )
explicit

Create a planar symmetry node.

Parameters
nodeSub-tree.
nNumber of symmetries.

Member Function Documentation

◆ GetShader()

QString SDFRevolutionSymmetry2::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.

◆ Signed()

double SDFRevolutionSymmetry2::Signed ( const Vector2 & p) const
virtual

Compute the signed distance function.

This operator preserves the Euclidean distance.

See also
Plane::Signed(const Vector&)
Parameters
pPoint.

Reimplemented from SDFUnary2.

Member Data Documentation

◆ n

int SDFRevolutionSymmetry2::n
protected

Rotation matrix.

Number of clones by symmetry.