HomerCursorModel Class Reference

#include <HomerCursorModel.h>

Collaboration diagram for HomerCursorModel:


Public Member Functions
virtual std::string	getName ()
virtual TransformationData	generateCursorTransformation (TransformationData userTransformation, User *user)
void	setCursorRange (float range)
virtual void	startForwardAnimation (std::vector< PICKEDENTITY > *entities)
virtual void	startBackwardAnimation ()
virtual bool	isAnimating ()
virtual bool	isForwardAnimating ()
virtual bool	isBackwardAnimating ()
Private Member Functions
	HomerCursorModel (ArgumentVector *args=NULL)
TransformationData	forwardAnimation (TransformationData userTransformation, User *user)
TransformationData	backwardAnimation (TransformationData userTransformation, User *user)
TransformationData	getNotAnimatedCursorTrans (TransformationData userTransformation, User *user)
Private Attributes
Entity *	entity
ArgumentVector *	args
bool	picked
bool	forwardAnimating
bool	backwardAnimating
double	lastTime
float	dist
gmtl::Vec3f	direction
TransformationData	cursorTrans
TransformationData	rayDestTrans
RayCastSelectionChangeModel *	rayCastSelectionChangeModel
float	animationSpeed
float	range
gmtl::Vec3f	cursorOffset
float	forwardDistanceThreshold
float	backwardDistanceThreshold
Friends
class	HomerCursorModelFactory

Detailed Description

This class implements the Homer-Technique. Use togehter with HomerManipulationActionModel and RayCastSelectionChangeModel

Constructor & Destructor Documentation

HomerCursorModel::HomerCursorModel ( ArgumentVector * args = NULL ) [private]

Constructor TODO not very pretty (use timestamps!) Constructor

Parameters:

an

argument vector containg the animationSpeed

Member Function Documentation

TransformationData HomerCursorModel::backwardAnimation	(	TransformationData	userTransformation,
		User *	user
	)			`[private]`

moves the cursor from the entity back to the handTransformation

TransformationData HomerCursorModel::forwardAnimation	(	TransformationData	userTransformation,
		User *	user
	)			`[private]`

moves the cursor from the handTransformation to the positon where the entity should be picked

TransformationData HomerCursorModel::generateCursorTransformation	(	TransformationData	userTransformation,
		User *	user
	)			`[virtual]`

The method calculates the transformation of the cursor in world coordinates. The transformation maps the cursor to the user's hand if nothing is picked. If an entity is picked, it returns the user's hand transformation + the offset to the entity and calculates the transformation while animating as well. If you want it to look nice, you should enable the usePickingOffset - option in RayCastSeletionChangeModel

Parameters:

	userTransformation	transformation of the User
	user	the user to calculate the cursor-transformation for

Returns:: transformation of the user's cursor

Implements CursorTransformationModel.

std::string HomerCursorModel::getName ( ) [virtual]

The method returns the name of the CursorTransformationModel, which is also the name of the class: "HomerCursorModel". This name has to be equal with the name which is checked in the CursorTransformationModelFactory.