clFlowSelector Class Reference

Flow-motion selector. More...

#include <FlowSelector.h>

List of all members.

Public Member Functions
	clFlowSelector ()
mtx4	GetQuadTransform (float t_center, float TSize) const
	Transformation for the Quad.
virtual void	QuadCoords (vec3 *Pts, float t_center, float TSize) const
	Calculate coordinates for the Quad in a given position.
virtual void	RebuildCurves ()
Public Attributes
int	FNumPoints
	Number of control points on the flow curve.
float	FHeight
	Height of the image (distnace between lower and upper curves)
float	FElevation
	"Thickness" of the curve
float	FSlope
	Slopiness of the curve.
float	FPeakOffset
	Symmetric displacement of curve peaks.
float	FFlowMult
	Exponential falloff coefficient.
float	FFlowExp
	Exponential coefficient (0.01 is OK)
float	FPointStep
	Number of units between sequential control points.
float	FControlExp
	Tweaking parameter for the quad points speed. Used internally.
LSpline	FBaseCurve [4]
	Trajectory control points for each base curve.
Private Member Functions
vec3	BaseCurvePoint (float t, float _Y, float CElevation, float CSlope, float CPeakOffset) const
	Base curve for the point of image quad.

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Detailed Description

Flow-motion selector.

This class only implements the geometrical routines to calculate each image's position. Coverflow control with dynamic image/texture loading and gesture support is a whole different story.

Created using four direction curves (points of each image move on these curves).

Coverflow requires similar arctangent-like curves. Carousel is just the same - simple another guiding curves (circles).

Remarks:

• QuadCoords and RebuildCurves methods are declared virtual to allow overrides for some special effects

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Constructor & Destructor Documentation

clFlowSelector::clFlowSelector

(

)

[inline]

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Member Function Documentation

vec3 clFlowSelector::BaseCurvePoint	(	float	t,
		float	_Y,
		float	CElevation,
		float	CSlope,
		float	CPeakOffset
	)		const [inline, private]

Base curve for the point of image quad.

mtx4 clFlowSelector::GetQuadTransform	(	float	t_center,
		float	TSize
	)		const [inline]

Transformation for the Quad.

virtual void clFlowSelector::QuadCoords	(	vec3 *	Pts,
		float	t_center,
		float	TSize
	)		const [inline, virtual]

Calculate coordinates for the Quad in a given position.

virtual void clFlowSelector::RebuildCurves

(

)

[inline, virtual]

Displacement is possible here. Morphing between two sets of curves is also possible

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Member Data Documentation

LSpline clFlowSelector::FBaseCurve[4]

Trajectory control points for each base curve.

float clFlowSelector::FControlExp

Tweaking parameter for the quad points speed. Used internally.

float clFlowSelector::FElevation

"Thickness" of the curve

float clFlowSelector::FFlowExp

Exponential coefficient (0.01 is OK)

float clFlowSelector::FFlowMult

Exponential falloff coefficient.

float clFlowSelector::FHeight

Height of the image (distnace between lower and upper curves)

int clFlowSelector::FNumPoints

Number of control points on the flow curve.

Property(Description="Number of control points on the base curves", Name=NumPoints, Type=int, FieldName=FNumPoints) Property(Description="Height of the images", Name=ImageHeight, Type=float, FieldName=FHeight) Property(Description="Elevation of the flow curve", Name=Elevation, Type=float, FieldName=FElevation) Property(Description="Slope of the flow curve", Name=Slope, Type=float, FieldName=FSlope) Property(Description="Symmetric offset", Name=PeakOffset, Type=float, FieldName=FPeakOffset) Property(Description="Elevation curve amplitude", Name=ElevationAmplitude, Type=float, FieldName=FFlowMult) Property(Description="Elevation curve slope parameter", Name=ElevationSlope, Type=float, FieldName=FFlowExp)

float clFlowSelector::FPeakOffset

Symmetric displacement of curve peaks.

float clFlowSelector::FPointStep

Number of units between sequential control points.

float clFlowSelector::FSlope

Slopiness of the curve.

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

• FlowSelector.h