This class implements a directional light source. More...

#include <CDirectionalLight.h>

Inheritance diagram for chai3d::cDirectionalLight:

[legend]

Public Member Functions
	cDirectionalLight (cWorld *a_world)
	Constructor of cDirectionalLight. More...

virtual	~cDirectionalLight ()
	Destructor of cDirectionalLight. More...

void	setDir (const cVector3d &a_direction)
	This method sets the direction of the light beam. More...

void	setDir (const double a_x, const double a_y, const double a_z)
	This method sets the direction of the light beam. More...

cVector3d	getDir () const
	This method returns the direction of the light beam. More...

Public Member Functions inherited from chai3d::cGenericLight
	cGenericLight (cWorld *a_world)
	Constructor of cGenericLight. More...

virtual	~cGenericLight ()
	Destructor of cGenericLight. More...

void	setUseTwoSideLightModel (bool a_useTwoSideLightModel)
	This method enables or disables the two sided lighting mode. More...

bool	getUseTwoSideLightModel () const
	This method returns true if the two sided lighting mode is enabled, false otherwise. More...

void	setDisplayEnabled (bool a_enabled)
	This method enables or disables the graphic representation of light source. (To be used for debugging purposes). More...

bool	getDisplayEnabled () const
	This method returns true of graphic display representation of the light source is enabled, false otherwise. More...

void	setGLLightNumber (const GLint a_glLightNumber)
	This method sets the OpenGL Light ID number. Assigning these numbers is normally handled by the world in which the light source is located. More...

GLint	getGLLightNumber () const
	This method returns the OpenGL Light ID number for this light source. More...

Public Member Functions inherited from chai3d::cGenericObject
	cGenericObject ()
	Constructor of cGenericObject. More...

virtual	~cGenericObject ()
	Destructor of cGenericObject. More...

virtual void	setEnabled (bool a_enabled, const bool a_affectChildren=false)
	This method enables or disable this object. When an object is disabled, both haptic and graphic rendering no longer occur. More...

bool	getEnabled () const
	This method returns true if the object is enabled, false otherwise. More...

virtual cGenericObject *	copy (const bool a_duplicateMaterialData=false, const bool a_duplicateTextureData=false, const bool a_duplicateMeshData=false, const bool a_buildCollisionDetector=true)
	This method creates a copy of itself. More...

virtual void	setLocalPos (const cVector3d &a_localPos)
	This method sets the local position of this object. More...

void	setLocalPos (const double a_x=0.0, const double a_y=0.0, const double a_z=0.0)
	This method sets the local position of this object. More...

cVector3d	getLocalPos () const
	This method returns the local position of this object. More...

cVector3d	getGlobalPos () const
	This method returns the global position of this object. More...

virtual void	setLocalRot (const cMatrix3d &a_localRot)
	This method sets the local rotation matrix for this object. More...

cMatrix3d	getLocalRot () const
	This method returns the local rotation matrix of this object. More...

cMatrix3d	getGlobalRot () const
	This method returns the global rotation matrix of this object. More...

void	setLocalTransform (const cTransform &a_transform)
	This method returns the local position and rotation matrix by passing a transformation matrix. More...

cTransform	getLocalTransform ()
	This method returns the local position and rotation matrix in a transformation matrix. More...

cTransform	getGlobalTransform ()
	This method returns the global position and rotation matrix in a transformation matrix. More...

void	translate (const cVector3d &a_translation)
	This method translates this object by a specified offset. More...

void	translate (const double a_x, const double a_y, const double a_z=0.0)
	This method translates this object by a specified offset. More...

void	rotateAboutLocalAxisRad (const cVector3d &a_axis, const double a_angleRad)
	This method rotates this object around a local axis. Angle magnitude is defined in radians. More...

void	rotateAboutLocalAxisDeg (const cVector3d &a_axis, const double a_angleDeg)
	This method rotates this object around a local axis. Angle magnitude is defined in degrees. More...

void	rotateAboutLocalAxisRad (const double a_axisX, const double a_axisY, const double a_axisZ, const double a_angleRad)
	This method rotates this object around a local axis. Angle magnitude is defined in radians. More...

void	rotateAboutLocalAxisDeg (const double a_axisX, const double a_axisY, const double a_axisZ, const double a_angleDeg)
	This method rotates this object around a local axis. Angle magnitude is defined in degrees. More...

void	rotateAboutGlobalAxisRad (const cVector3d &a_axis, const double a_angleRad)
	This method rotates this object around a global axis. Angle magnitude is defined in radians. More...

void	rotateAboutGlobalAxisDeg (const cVector3d &a_axis, const double a_angleDeg)
	This method rotates this object around a global axis. Angle magnitude is defined in degrees. More...

void	rotateAboutGlobalAxisRad (const double a_axisX, const double a_axisY, const double a_axisZ, const double a_angleRad)
	This method rotate this object around a local axis. Angle magnitude is defined in radians. More...

void	rotateAboutGlobalAxisDeg (const double a_axisX, const double a_axisY, const double a_axisZ, const double a_angleDeg)
	This method rotates this object around a local axis. Angle magnitude is defined in degrees. More...

void	rotateExtrinsicEulerAnglesRad (const double &a_angleRad1, const double &a_angleRad2, const double &a_angleRad3, const cEulerOrder a_eulerOrder)
	This method rotates this object using fixed Euler representation. Angles are defined in radians. More...

void	rotateExtrinsicEulerAnglesDeg (const double &a_angleDeg1, const double &a_angleDeg2, const double &a_angleDeg3, const cEulerOrder a_eulerOrder)
	This method rotates this object using fixed Euler representation. Angles are defined in radians. More...

void	rotateIntrinsicEulerAnglesRad (const double &a_angleRad1, const double &a_angleRad2, const double &a_angleRad3, const cEulerOrder a_eulerOrder)
	This method rotates this object using co-moving Euler representation. Angles are defined in radians. More...

void	rotateIntrinsicEulerAnglesDeg (const double &a_angleDeg1, const double &a_angleDeg2, const double &a_angleDeg3, const cEulerOrder a_eulerOrder)
	This method rotates this object using co-moving Euler representation. Angles are defined in radians. More...

virtual void	computeGlobalPositions (const bool a_frameOnly=true, const cVector3d &a_globalPos=cVector3d(0.0, 0.0, 0.0), const cMatrix3d &a_globalRot=cIdentity3d())
	This method computes the global position and rotation of this object and its children. More...

void	computeGlobalPositionsFromRoot (const bool a_frameOnly=true)
	This method computes the global position and rotation of current object only. More...

bool	addEffect (cGenericEffect *a_effect)
	This method adds a haptic effect to this object. More...

bool	removeEffect (cGenericEffect *a_effect)
	This method removes a haptic effect from this object. More...

void	deleteAllEffects ()
	This method removes all haptic effects. More...

bool	createEffectMagnetic ()
	This method creates a magnetic haptic effect. More...

bool	deleteEffectMagnetic ()
	This method deletes any current magnetic haptic effect. More...

bool	createEffectStickSlip ()
	This method creates a stick-and-slip haptic effect. More...

bool	deleteEffectStickSlip ()
	This method delete any current stick-and-slip haptic effect. More...

bool	createEffectSurface ()
	This method creates a surface haptic effect. More...

bool	deleteEffectSurface ()
	This method deletes any current surface haptic effect. More...

bool	createEffectVibration ()
	This method creates a vibration haptic effect. More...

bool	deleteEffectVibration ()
	This method deletes any current vibration haptic effect. More...

bool	createEffectViscosity ()
	This method creates a viscous haptic effect. More...

bool	deleteEffectViscosity ()
	This method deletes any current viscous haptic effect. More...

virtual void	setHapticEnabled (const bool a_hapticEnabled, const bool a_affectChildren=true)
	This method enables or disables haptic perception of this object, optionally propagating the change to children. More...

bool	getHapticEnabled () const
	This method returns the haptic status of object (true means it can be felt when visible). More...

virtual void	setStiffness (const double a_stiffness, const bool a_affectChildren=true)
	This method sets the haptic stiffness of the object, optionally recursively affecting children. More...

virtual void	setFriction (double a_staticFriction, double a_dynamicFriction, const bool a_affectChildren=true)
	This method sets the static and dynamic friction properties (polygonal models only), optionally recursively affecting children. More...

virtual void	setShowEnabled (const bool a_show, const bool a_affectChildren=true)
	This method enables or disables the graphic display of this object, optionally propagating the change to children. More...

bool	getShowEnabled () const
	This method returns the display status of object (true means it's visible). More...

virtual void	setWireMode (const bool a_showWireMode, const bool a_affectChildren=false)
	This method enables or disables wireframe rendering, optionally propagating the operation to my children. More...

bool	getWireMode () const
	This method returns whether wireframe rendering is enabled. More...

virtual void	setUseCulling (const bool a_useCulling, const bool a_affectChildren=false)
	This method enables or disables face-culling, optionally propagating the operation to my children. More...

bool	getUseCulling () const
	This method returns true if face-culling is enabled, false otherwise. More...

virtual void	setUseTransparency (const bool a_useTransparency, const bool a_affectChildren=false)
	This method enables or disables transparency. More...

bool	getUseTransparency () const
	This method returns true if transparency is enabled, false otherwise. More...

virtual void	setTransparencyLevel (const float a_level, const bool a_applyToVertices=false, const bool a_applyToTextures=false, const bool a_affectChildren=false)
	This method sets the transparency level of the object. More...

virtual void	setUseDisplayList (const bool a_useDisplayList, const bool a_affectChildren=false)
	This method enabled or disables the use of a display list for rendering, optionally propagating the operation to its children. More...

bool	getUseDisplayList () const
	This method returns true if a display list is activated, false otherwise. More...

virtual void	markForUpdate (const bool a_affectChildren=false)
	This method invalidates any existing display lists, optionally propagating the operation to its children. More...

virtual void	setUseVertexColors (const bool a_useColors, const bool a_affectChildren=false)
	This method enables or disables the use of per-vertex colors, optionally propagating the operation to its children. More...

bool	getUseVertexColors () const
	This method returns true is per-vertex color properties are enabled, false otherwise. More...

virtual void	setUseMaterial (const bool a_useMaterial, const bool a_affectChildren=false)
	This method enables or disables the use of material properties, optionally propagating the operation to its children. More...

bool	getUseMaterial () const
	This method returns true is material properties are enabled, false otherwise. More...

virtual void	setMaterial (cMaterialPtr a_material, const bool a_affectChildren=false)
	This method sets the material properties of this object, optionally propagating the operation to its children. More...

virtual void	setMaterial (cMaterial &a_material, const bool a_affectChildren=false)
	This method setd the material properties of this object, optionally propagating the operation to its children. More...

virtual void	backupMaterialColors (const bool a_affectChildren=false)
	This method creates a backup of the material colors of this object, optionally propagating the operation to its children. More...

virtual void	restoreMaterialColors (const bool a_affectChildren=false)
	This method restores the material color properties of this object from a previous backup, optionally propagating the operation to its children. More...

virtual void	setUseTexture (const bool a_useTexture, const bool a_affectChildren=false)
	This method enables or disables the use of texture-mapping, optionally propagating the operation to its children. More...

bool	getUseTexture () const
	This method returns true if texture-mapping is enabled, false otherwise. More...

virtual void	setTexture (cTexture1dPtr a_texture, const bool a_affectChildren=false)
	This method sets a texture to this object, optionally propagating the operation to its children. More...

virtual void	setShaderProgram (cShaderProgramPtr a_shaderProgram, const bool a_affectChildren=false)
	This method assigns a shader program to this object, optionally propagating the operation to its children.. More...

virtual cShaderProgramPtr	getShaderProgram ()
	This method returns a pointer to the current shader program. More...

virtual void	setShowBoundaryBox (const bool a_showBoundaryBox, const bool a_affectChildren=false)
	This method enables or disabled the graphic display of the boundary box for this object, optionally propagating the change to its children. More...

bool	getShowBoundaryBox () const
	This method returns true if the boundary box is being displayed, false otherwise. More...

cVector3d	getBoundaryMin () const
	This method returns the minimum point of this object's boundary box. More...

cVector3d	getBoundaryMax () const
	This method returns the maximum point of this object's boundary box. More...

cVector3d	getBoundaryCenter () const
	This method computes and returns the center of this object's boundary box. More...

bool	getBoundaryBoxEmpty ()
	This method returns true, if the boundary box is empty, otherwise false. More...

virtual void	computeBoundaryBox (const bool a_includeChildren=true)
	This method computes this object's boundary box, optionally forcing it to bound child objects. More...

virtual void	setShowFrame (const bool a_showFrame, const bool a_affectChildren=false)
	This method enables or disables the graphic display of the reference frame arrows for this object, optionally propagating the change to its children. More...

bool	getShowFrame (void) const
	This method returns true if the display of the reference frame is enabled, false otherwise. More...

virtual void	setFrameSize (const double a_size=1.0, const bool a_affectChildren=false)
	This method sets the size of the rendered reference frame, optionally propagating the change to its children. More...

double	getFrameSize () const
	This method returns the size of the graphical reference frame. More...

void	setCollisionDetector (cGenericCollision *a_collisionDetector)
	This method sets a collision detector to this current object. More...

cGenericCollision *	getCollisionDetector () const
	This method returns a pointer to this object's current collision detector. More...

virtual void	deleteCollisionDetector (const bool a_affectChildren=false)
	This method deletes any existing collision detector. More...

virtual bool	computeCollisionDetection (const cVector3d &a_segmentPointA, const cVector3d &a_segmentPointB, cCollisionRecorder &a_recorder, cCollisionSettings &a_settings)
	This method computes any collision between a segment and this object. More...

virtual void	setShowCollisionDetector (const bool a_showCollisionDetector, const bool a_affectChildren=false)
	This method enables or disables the display of the collision detector, optionally propagating the change to its children. More...

bool	getShowCollisionDetector ()
	This method returns true if the collision detector is being displayed graphically, false otherwise. More...

virtual void	setCollisionDetectorProperties (unsigned int a_displayDepth, cColorf &a_color, const bool a_affectChildren=false)
	This method sets the collision detector graphic display properties. More...

void	setParent (cGenericObject *a_parent)
	This method sets the parent of this object. More...

cGenericObject *	getParent () const
	This method returns the parent of this object. More...

void	setOwner (cGenericObject *a_owner)
	This method sets a link to an object that owns this object. This could be a super parent for instance. More...

cGenericObject *	getOwner ()
	This method returns the owner of this object. More...

cGenericObject *	getChild (const unsigned int a_index) const
	This method returns a selected child from the list of children. More...

bool	addChild (cGenericObject *a_object)
	This method add an object to the list of children. More...

bool	removeChild (cGenericObject *a_object)
	This method removes an object from the list of children, without deleting it. More...

bool	removeFromGraph ()
	This method removes this object from its parent's list of children. More...

bool	deleteChild (cGenericObject *a_object)
	This method removes an object from its list of children and deletes it. More...

void	clearAllChildren ()
	This method clears all objects from its list of children, without deleting them. More...

void	deleteAllChildren ()
	This method clears and delete all objects from its list of children. More...

unsigned int	getNumChildren ()
	This method returns the number of children from its list of children. More...

unsigned int	getNumDescendants (bool a_includeCurrentObject=false)
	This method returns the total number of descendants, optionally including this object. More...

void	setGhostEnabled (bool a_ghostEnabled)
	This method enables or disables this object to be a ghost node. More...

bool	getGhostEnabled ()
	This method returns truee if this object is a ghost node. More...

virtual void	scale (const double &a_scaleFactor, const bool a_affectChildren=true)
	This method scales the size of this object. More...

virtual void	renderSceneGraph (cRenderOptions &a_options)
	This method renders the entire scene graph, starting from this object. More...

virtual void	adjustCollisionSegment (cVector3d &a_segmentPointA, cVector3d &a_segmentPointAadjusted)
	This method adjusts the collision segment to handle objects in motion. More...

virtual cVector3d	computeInteractions (const cVector3d &a_toolPos, const cVector3d &a_toolVel, const unsigned int a_IDN, cInteractionRecorder &a_interactions)
	This method computes all haptic interaction between a tool and this object using the haptic effects. More...

Public Member Functions inherited from chai3d::cGenericType
	cGenericType ()
	Constructor of cGenericType. More...

virtual	~cGenericType ()
	Destructor of cGenericType. More...

Protected Member Functions
virtual void	renderLightSource (cRenderOptions &a_options)
	This method renders the lighting properties of this light source using OpenGL. More...

virtual void	render (cRenderOptions &a_options)
	This method renders a graphical representation (display model) of the light source. (used for debugging purposes typically). More...

Protected Member Functions inherited from chai3d::cGenericObject
virtual void	updateGlobalPositions (const bool a_frameOnly)
	This method update the global position information about this object. More...

virtual void	updateBoundaryBox ()
	This method updates the boundary box of this object. More...

virtual void	scaleObject (const double &a_scaleFactor)
	This method scales the size of this object with given scale factor. More...

virtual void	computeLocalInteraction (const cVector3d &a_toolPos, const cVector3d &a_toolVel, const unsigned int a_IDN)
	This method updates the geometric relationship between the tool and the current object. More...

virtual cVector3d	computeOtherInteractions (const cVector3d &a_toolPos, const cVector3d &a_toolVel, const unsigned int a_IDN, cInteractionRecorder &a_interactions)
	This method computes any additional interactions between the object and the tools. More...

virtual bool	computeOtherCollisionDetection (cVector3d &a_segmentPointA, cVector3d &a_segmentPointB, cCollisionRecorder &a_recorder, cCollisionSettings &a_settings)
	This method computes any additional collisions other than the ones computed by the default collision detector. More...

void	copyGenericObjectProperties (cGenericObject *a_objDest, const bool a_duplicateMaterialData, const bool a_duplicateTextureData, const bool a_duplicateMeshData, const bool a_buildCollisionDetector)
	This method copies all properties of the current generic object to another. More...

Friends
class	cCamera

Additional Inherited Members
Public Attributes inherited from chai3d::cGenericLight
cColorf	m_ambient
	Ambient light component. More...

cColorf	m_diffuse
	Diffuse light component. More...

cColorf	m_specular
	Specular light component. More...

Public Attributes inherited from chai3d::cGenericObject
std::string	m_name
	Name of current object (filename). More...

cMaterialPtr	m_material
	Material property. More...

cTexture1dPtr	m_texture
	Texture property. More...

cNormalMapPtr	m_normalMap
	Normal map property. More...

int	m_userTag
	An arbitrary tag, not used by CHAI3D. More...

void *	m_userData
	An arbitrary data pointer, not used by CHAI3D. More...

std::string	m_userName
	Name of current object, not used by CHAI3D. More...

cGenericObject *	m_userExternalObject
	A link to an external cGenericObject object, not used by CHAI3D. More...

cVector3d	m_interactionPoint
	Projection of the most recent haptic point (tool) onto the surface of the virtual object. More...

cVector3d	m_interactionNormal
	Surface normal at the current interaction point. More...

bool	m_interactionInside
	Was the last tool (haptic point) located inside the object? More...

Static Public Attributes inherited from chai3d::cGenericObject
static cColorf	s_boundaryBoxColor
	Color of the boundary box. More...

Protected Attributes inherited from chai3d::cGenericLight
cWorld *	m_worldParent
	Parent world in which light source is located. More...

GLint	m_glLightNumber
	OpenGL reference number for the current light source. This number ranges from 0 to 7. More...

GLint	m_useTwoSideLightModel
	If true then a two sided light source model is used. More...

bool	m_displayEnabled
	If true then a graphical representation of the light source is rendered. More...

Protected Attributes inherited from chai3d::cGenericObject
cGenericObject *	m_parent
	Parent object. More...

cGenericObject *	m_owner

std::vector< cGenericObject * >	m_children
	List of children. More...

cVector3d	m_localPos
	The position of this object in my parent's reference frame. More...

cVector3d	m_globalPos
	The position of this object in the world's reference frame. More...

cMatrix3d	m_localRot
	The rotation matrix that rotates my reference frame into my parent's reference frame. More...

cMatrix3d	m_globalRot
	The rotation matrix that rotates my reference frame into the world's reference frame. More...

cVector3d	m_prevGlobalPos
	Previous position since last haptic computation. More...

cMatrix3d	m_prevGlobalRot
	Previous rotation since last haptic computation. More...

cVector3d	m_boundaryBoxMin
	Minimum position of boundary box. More...

cVector3d	m_boundaryBoxMax
	Maximum position of boundary box. More...

bool	m_boundaryBoxEmpty
	If true, then the boundary box does not include any object. More...

double	m_frameSize
	Size of graphical representation of frame (X-Y-Z). More...

double	m_frameThicknessScale
	Pen thickness of graphical representation of frame (X-Y-Z). More...

bool	m_enabled
	If true, the object may be rendered graphically and haptically. More...

bool	m_showEnabled
	If true, this object is rendered. More...

bool	m_hapticEnabled
	If true, this object can be felt. More...

bool	m_ghostEnabled
	If true, object is enabled as ghost. More...

bool	m_showFrame
	If true, this object's reference frame is rendered as a set of arrows. More...

bool	m_showBoundaryBox
	If true, this object's boundary box is displayed as a set of lines. More...

bool	m_showCollisionDetector
	If true, the collision detector is displayed (if available) at this node. More...

bool	m_useTextureMapping
	Should texture mapping be used? More...

bool	m_useMaterialProperty
	Should material properties be used? More...

bool	m_useVertexColors
	Should per-vertex colors be used? More...

bool	m_useDisplayList
	Should we use a display list to render this mesh? More...

cDisplayList	m_displayList
	Basic display list for current object. More...

int	m_triangleMode
	The polygon rendering mode (GL_FILL or GL_LINE). More...

bool	m_useTransparency

bool	m_cullingEnabled

cShaderProgramPtr	m_shaderProgram
	Shader program. More...

cTransform	m_frameGL
	OpenGL matrix describing my position and orientation transformation. More...

cGenericCollision *	m_collisionDetector
	The collision detector used to test for contact with this object. More...

std::vector< cGenericEffect * >	m_effects
	List of haptic effects programmed for this object. More...

Static Protected Attributes inherited from chai3d::cGenericObject
static cMaterialPtr	s_defaultMaterial = nullptr
	Default material property. More...

Detailed Description

This class implements a directional light source. A directional light source is treated as though it is located infinitely far away from the scene, therefore only the lighting direction needs to be defined. The effect of an infinite location is that the rays of light can be considered parallel by the time they reach an object. An example of a real-world directional light source is the sun.

Constructor & Destructor Documentation

chai3d::cDirectionalLight::cDirectionalLight ( cWorld * a_world )

Constructor of cDirectionalLight.

Parameters

a_world Parent world in which the light source is created.

chai3d::cDirectionalLight::~cDirectionalLight ( )

virtual

Destructor of cDirectionalLight.

Member Function Documentation

void chai3d::cDirectionalLight::setDir ( const cVector3d & a_direction )

This method sets the direction of the light beam.

Parameters

a_direction Direction of light beam.

void chai3d::cDirectionalLight::setDir	(	const double	a_x,
		const double	a_y,
		const double	a_z
	)

This method set the direction of the light beam.

Parameters

a_x	X Coordinate of light beam.
a_y	Y Coordinate of light beam.
a_z	Z Coordinate of light beam.

cVector3d chai3d::cDirectionalLight::getDir ( ) const

inline

void chai3d::cDirectionalLight::renderLightSource ( cRenderOptions & a_options )

protectedvirtual

This method renders this light source in OpenGL.

Parameters

a_options Rendering options.

Reimplemented from chai3d::cGenericLight.

Reimplemented in chai3d::cSpotLight.

virtual void chai3d::cDirectionalLight::render ( cRenderOptions & a_options )

inlineprotectedvirtual

Reimplemented from chai3d::cGenericLight.

Reimplemented in chai3d::cSpotLight.

Friends And Related Function Documentation

friend class cCamera

friend

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

Public Member Functions

Protected Member Functions

Friends

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation