A triangle defined by its three vertices. More...

#include <Triangle.h>

Inheritance diagram for Triangle:

Collaboration diagram for Triangle:

Public Member Functions
	Triangle ()
	Default constructor. More...

	Triangle (const DoubleVec3D &vertex0, const DoubleVec3D &vertex1, const DoubleVec3D &vertex2, Material *material)
	Main constructor. More...

	Triangle (const Triangle &triangle)
	Copy constructor. More...

DoubleVec3D	getVertex0 () const
	Getter for the first vertex. More...

DoubleVec3D	getVertex1 () const
	Getter for the second vertex. More...

DoubleVec3D	getVertex2 () const
	Getter for the third vertex. More...

DoubleVec3D	getCenter () const
	Getter for the center. More...

void	setVertex0 (const DoubleVec3D &vertex)
	Setter for the first vertex. More...

void	setVertex1 (const DoubleVec3D &vertex)
	Setter for the second vertex. More...

void	setVertex2 (const DoubleVec3D &vertex)
	Setter for the third vertex. More...

void	computeArea ()
	Computes this triangle's area. More...

Object3D *	deepCopy () const
	Makes a deep copy of this object. More...

double	smallestPositiveIntersection (const Ray &ray) const
	Computes the smallest positive intersection between the ray and this object. More...

DoubleUnitVec3D	getNormal (const DoubleVec3D &point) const
	Computes the normal at a point on the object. More...

DoubleVec3D	getRandomPoint () const
	Computes a random point on the object. More...

DoubleVec3D	getMinCoord () const
	Returns the minimum coordinate of a cuboid containing this object. More...

DoubleVec3D	getMaxCoord () const
	Returns the maximum coordinate of a cuboid containing this object. More...

std::ostream &	getDescription (std::ostream &stream) const
	Returns this object's description. More...

std::string	getType () const
	Returns this object type. More...

json	getLocationJson () const
	Converts this objects's location to json. More...

void	setLocationJson (const json &j)
	Sets this object's location according to json. More...

Public Member Functions inherited from Object3D
	Object3D ()
	Default constructor. More...

	Object3D (Material *material)
	Main constructor. More...

	Object3D (const Object3D &obj)
	Copy constructor. More...

	~Object3D ()
	Destructor. More...

Material *	getMaterial () const
	Getter for the Material. More...

double	getArea () const
	Getter for this object's area. More...

void	setMaterial (Material *material)
	Setter for the Material. More...

Object3D &	operator= (const Object3D &otherObject)
	Assignment operator. More...

Additional Inherited Members
Protected Attributes inherited from Object3D
double	area
	Stores the area of this object. More...

Detailed Description

A triangle defined by its three vertices.

The order of its vertices is important. See the main constructor for more information.

Constructor & Destructor Documentation

◆ Triangle() [1/3]

Triangle::Triangle ( )

Default constructor.

Calls Object3D::Object3D(), then defines vertex0 = (1, 0, 0), vertex1 = (0, 1, 0) and vertex2 = (0, 0, 1).

◆ Triangle() [2/3]

Triangle::Triangle	(	const DoubleVec3D &	vertex0,
		const DoubleVec3D &	vertex1,
		const DoubleVec3D &	vertex2,
		Material *	material
	)

Main constructor.

The order of the vertices is important, because the normal is only on one side of the triangle (meaning that the triangle can only be seen from one side). Give the vertices counterclockwise from where you want the triangle to be visible.

Parameters

vertex0	The first vertex of this triangle.
vertex1	The second vertex of this triangle.
vertex2	The third vertex of this triangle.
material	A pointer to the material of this triangle.

◆ Triangle() [3/3]

Triangle::Triangle ( const Triangle & triangle )

Copy constructor.

Parameters

triangle The triangle that will be copied.

Member Function Documentation

◆ computeArea()

void Triangle::computeArea ( )

virtual

Computes this triangle's area.

Modifies Object3D::area. It uses the formula A = 0.5 * ||edge1 x edge2||, with edge1 = vertex1 - vertex0 and edge2 = vertex2 - vertex0.

See also: Object3D::area, Object3D::getArea()

Implements Object3D.

◆ deepCopy()

Object3D * Triangle::deepCopy ( ) const

virtual

Makes a deep copy of this object.

Returns: A pointer to a deeply copied version of this object.

Implements Object3D.

◆ getCenter()

DoubleVec3D Triangle::getCenter ( ) const

virtual

Getter for the center.

Returns: The average of the three vertices.

Implements Object3D.

◆ getDescription()

std::ostream & Triangle::getDescription ( std::ostream & stream ) const

virtual

Returns this object's description.

Parameters

stream The current stream.

Returns: The stream with the description.

See also: operator<<(std::ostream& stream, const Object3D& object)

Implements Object3D.

◆ getLocationJson()

json Triangle::getLocationJson ( ) const

virtual

Converts this objects's location to json.

Returns: This triangle's vertices converted to json.

Implements Object3D.

◆ getMaxCoord()

DoubleVec3D Triangle::getMaxCoord ( ) const

virtual

Returns the maximum coordinate of a cuboid containing this object.

For each axis, picks the greatest coordinate among the three vertices.

Returns: The maximum coordinate of a cuboid containing this object.

See also: getMaxPoint(std::vector<Object3D*> objects)

Implements Object3D.

◆ getMinCoord()

DoubleVec3D Triangle::getMinCoord ( ) const

virtual

Returns the minimum coordinate of a cuboid containing this object.

For each axis, picks the smallest coordinate among the three vertices.

Returns: The minimum coordinate of a cuboid containing this object.

See also: getMinPoint(std::vector<Object3D*> objects)

Implements Object3D.

◆ getNormal()

DoubleUnitVec3D Triangle::getNormal ( const DoubleVec3D & point ) const

virtual

Computes the normal at a point on the object.

Parameters

point The point on the object at which we want to compute the normal.

Returns: The cross product between (vertex1 - vertex0) and (vertex2 - vertex0).

Implements Object3D.

◆ getRandomPoint()

DoubleVec3D Triangle::getRandomPoint ( ) const

virtual

Computes a random point on the object.

Every point has the same probability to show up.

Returns: A random point on this object.

Implements Object3D.

◆ getType()

std::string Triangle::getType ( ) const

virtual

Returns this object type.

Returns: "Triangle".

Implements Object3D.

◆ getVertex0()

DoubleVec3D Triangle::getVertex0 ( ) const

Getter for the first vertex.

Returns: This triangle's first vertex.

◆ getVertex1()

DoubleVec3D Triangle::getVertex1 ( ) const

Getter for the second vertex.

Returns: This triangle's second vertex.

◆ getVertex2()

DoubleVec3D Triangle::getVertex2 ( ) const

Getter for the third vertex.

Returns: This triangle's third vertex.

◆ setLocationJson()

void Triangle::setLocationJson ( const json & j )

virtual

Sets this object's location according to json.

Parameters

j	The json input.

Implements Object3D.

◆ setVertex0()

void Triangle::setVertex0 ( const DoubleVec3D & vertex )

Setter for the first vertex.

Calls Triangle::computeArea().

Parameters

vertex The new first vertex of this triangle.

See also: Triangle::computeArea()

◆ setVertex1()

void Triangle::setVertex1 ( const DoubleVec3D & vertex )

Setter for the second vertex.

Calls Triangle::computeArea().

Parameters

vertex The new second vertex of this triangle.

See also: Triangle::computeArea()

◆ setVertex2()

void Triangle::setVertex2 ( const DoubleVec3D & vertex )

Setter for the third vertex.

Calls Triangle::computeArea().

Parameters

vertex The new third vertex of this triangle.

See also: Triangle::computeArea()

◆ smallestPositiveIntersection()

double Triangle::smallestPositiveIntersection ( const Ray & ray ) const

virtual

Computes the smallest positive intersection between the ray and this object.

Parameters

ray	The ray with wich we want to compute the intersection.

Returns: The distance between the ray origin and the intersection. Returns -1 if the ray does not intersect with this object.

Implements Object3D.

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

D:/PathTracer/PathTracer/Triangle.h
D:/PathTracer/PathTracer/Triangle.cpp

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ Triangle() [1/3]

◆ Triangle() [2/3]

◆ Triangle() [3/3]

Member Function Documentation

◆ computeArea()

◆ deepCopy()

◆ getCenter()

◆ getDescription()

◆ getLocationJson()

◆ getMaxCoord()

◆ getMinCoord()

◆ getNormal()

◆ getRandomPoint()

◆ getType()

◆ getVertex0()

◆ getVertex1()

◆ getVertex2()

◆ setLocationJson()

◆ setVertex0()

◆ setVertex1()

◆ setVertex2()

◆ smallestPositiveIntersection()