IlvRotateAccessor Class Reference

Makes groups or group nodes repeatedly rotate around a given center. More...

#include <ilviews/protos/animacc.h>

Inheritance diagram for IlvRotateAccessor:

List of all members.

Public Member Functions
	IlvRotateAccessor (const char *name, const IlvValueTypeClass *type, IlvDisplay *display, const char *periodVal, const char *nodeName, const char *angleValue, const char *centerXValue, const char *centerYValue)
	Creates a new animation accessor that makes a group or one of its nodes rotate.
Protected Member Functions
virtual void	doit ()
	Performs periodic updates of the accessor.

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Detailed Description

Makes groups or group nodes repeatedly rotate around a given center.

Library: ilvproto

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Constructor & Destructor Documentation

IlvRotateAccessor::IlvRotateAccessor	(	const char *	name,
		const IlvValueTypeClass *	type,
		IlvDisplay *	display,
		const char *	periodVal,
		const char *	nodeName,
		const char *	angleValue,
		const char *	centerXValue,
		const char *	centerYValue
	)

Creates a new animation accessor that makes a group or one of its nodes rotate.

Parameters:

	name	Name of the accessor.
	type	Type of the value.
	display	Needed to initialize the timers.
	periodVal	Specifies the interval (in milliseconds) at which visibleValue will be changed (see IlvAnimationAccessor).
	nodeName	The name of the node to be rotated. You can use the character string nodeName to rotate the whole group.
	angleValue	Specifies the angle (in degrees) by which the object will be rotated: it can be either an accessor name or a direct value (10 for example).
	centerXValue	Specifies the x coordinates of the point around which the object will be rotated.
	centerYValue	Specifies the y coordinates of the point around which the object will be rotated.

periodVal, angleValue, centerXValue, and centerYValue can contain a constant value, the name of another accessor, or an arithmetic expression that can contain accessor names and/or constants (see IlvUserAccessor::getValue).

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Member Function Documentation

virtual void IlvRotateAccessor::doit

(

)

[protected, virtual]

Performs periodic updates of the accessor.

This method is called repeatedly by the IlvAnimationAccessor object at the time interval specified by the periodVal argument of the constructor. It must be redefined by subclasses to perform a visual or audio animation effect. Its default behavior implements the clock behavior: it triggers regularly the attribute it is attached to.

Reimplemented from IlvAnimationAccessor.