TerraUnary Class Reference

Unary operators. More...

#include <archestree.h>

Inheritance diagram for TerraUnary:

Public Member Functions
	TerraUnary (TerraNode *)
	Create an unary node.
	~TerraUnary ()
	Recusively destroy the sub-tree.
virtual int	Traversal (const Vector2 &) const
	Compute the number of nodes that are traversed when evaluating the tree.
virtual int	Memory () const
	Compute the size of a node.
Public Member Functions inherited from TerraNode
	TerraNode (const Box2 &=Box2::Infinity)
	Create a node.
virtual Box2	GetBox () const
	Returns the bouding box of a node.
virtual ScalarAlpha	ElevationAlpha (const Vector2 &) const
	Compute the elevation and weight.
virtual double	Elevation (const Vector2 &) const
	Compute the elevation at a given position.
virtual double	Alpha (const Vector2 &) const
	Compute the alpha mask at a given position.
virtual Vector2	Gradient (const Vector2 &) const
	Compute the gradient at a given position.
virtual Vector	Normal (const Vector2 &) const
	Compute the normal at a given position.
virtual void	writeJson (QJsonObject &)
	Compute the Json Document of the subtree.
ScalarField2	Sample (const Array2 &) const
	Create a discrete scalar field by sampling the elevation over a given domain.
ScalarField2	Alpha (const Array2 &) const
	Create a discrete scalar field by sampling the elevation over a given domain.
void	Blend (HeightField &) const
	Blend a given node with an existing terrain over an input heightfield.
void	Add (HeightField &) const
	Add a given node with an existing heightfield.
virtual void	Draw (QGraphicsScene &) const
	Renders the node into a QGraphicsScene.

Protected Attributes
TerraNode *	node = nullptr
	Sub-tree.
Protected Attributes inherited from TerraNode
Box2	box = Box2::Infinity
	Bounding box.

Additional Inherited Members
Static Protected Attributes inherited from TerraNode
static const double	epsilon = 1e-2
	Epsilon value for gradient computations.

Detailed Description

Unary operators.

Constructor & Destructor Documentation

TerraUnary()

TerraUnary::TerraUnary ( TerraNode * a )

explicit

Create an unary node.

Parameters

a

Sub-tree.

References TerraNode::box, node, and TerraNode::TerraNode().

Referenced by Memory(), TerraAddNoise::TerraAddNoise(), TerraCircleWarp::TerraCircleWarp(), TerraClampWeight::TerraClampWeight(), TerraDiscCut::TerraDiscCut(), TerraFrame::TerraFrame(), TerraFrameScaled::TerraFrameScaled(), TerraPlateau::TerraPlateau(), TerraScale::TerraScale(), TerraSmooth::TerraSmooth(), TerraTranslate::TerraTranslate(), TerraTwist::TerraTwist(), and TerraWarpNoise::TerraWarpNoise().

Member Function Documentation

Memory()

int TerraUnary::Memory ( ) const

virtual

Compute the size of a node.

Reimplemented from TerraNode.

Reimplemented in TerraCircleWarp, TerraClampWeight, TerraDiscCut, TerraFrame, TerraFrameScaled, TerraPlateau, TerraScale, TerraTranslate, TerraTwist, and TerraWarpNoise.

References node, and TerraUnary().

Traversal()

int TerraUnary::Traversal ( const Vector2 & p ) const

virtual

Compute the number of nodes that are traversed when evaluating the tree.

Parameters

p

Point.

Reimplemented from TerraNode.

Reimplemented in TerraAddNoise.

References TerraNode::box, and node.