Package elki.visualization.projections

Class Simple2D

java.lang.Object

elki.visualization.projections.AbstractProjection

elki.visualization.projections.AbstractFullProjection

elki.visualization.projections.AbstractSimpleProjection

elki.visualization.projections.Simple2D

All Implemented Interfaces:

FullProjection, Projection, Projection2D, VisualizationItem

public class Simple2D
extends AbstractSimpleProjection
implements Projection2D

Dimension-selecting 2D projection.

Since:

0.4.0

Author:

Erich Schubert

Field Summary

Fields

Modifier and Type	Field	Description
private int	dim1	Dimensions for fast projection mode.
private int	dim2	Dimensions for fast projection mode.

Fields inherited from class elki.visualization.projections.AbstractProjection

scales

Fields inherited from interface elki.visualization.projections.Projection

INVSCALE, SCALE

Constructor Summary

Constructors

Constructor	Description
Simple2D(Projector p, LinearScale[] scales, int ax1, int ax2)	Constructor with a given database and axes.

Method Summary

Modifier and Type	Method	Description
protected double[]	dearrange(double[] v)	Undo the rearrangement of components.
CanvasSize	estimateViewport()	Estimate the viewport requirements
double[]	fastProjectDataToRenderSpace(double[] data)	Project a data vector from data space to rendering space.
double[]	fastProjectDataToRenderSpace(NumberVector data)	Project a data vector from data space to rendering space.
double[]	fastProjectDataToScaledSpace(double[] data)	Project a data vector from data space to scaled space.
double[]	fastProjectDataToScaledSpace(NumberVector data)	Project a data vector from data space to scaled space.
double[]	fastProjectRelativeDataToRenderSpace(double[] data)	Project a data vector from data space to rendering space.
double[]	fastProjectRelativeDataToRenderSpace(NumberVector data)	Project a data vector from data space to rendering space.
double[]	fastProjectRelativeScaledToRenderSpace(double[] vr)	Project a vector from scaled space to rendering space.
double[]	fastProjectRenderToDataSpace(double x, double y)	Project a data vector from rendering space to data space.
double[]	fastProjectRenderToScaledSpace(double x, double y)	Project a vector from rendering space to scaled space.
double[]	fastProjectScaledToRenderSpace(double[] v)	Project a vector from scaled space to rendering space.
java.lang.String	getMenuName()	Name to display in the menu.
long[]	getVisibleDimensions2D()	Get a bit set of dimensions that are visible.
protected double[]	rearrange(double[] v)	Method to rearrange components.

Methods inherited from class elki.visualization.projections.AbstractSimpleProjection

flipSecondEquals, projectRelativeRenderToScaled, projectRelativeScaledToRender, projectRenderToScaled, projectScaledToRender

Methods inherited from class elki.visualization.projections.AbstractFullProjection

projectDataToRenderSpace, projectDataToRenderSpace, projectDataToScaledSpace, projectDataToScaledSpace, projectRelativeDataToRenderSpace, projectRelativeDataToRenderSpace, projectRelativeDataToScaledSpace, projectRelativeDataToScaledSpace, projectRelativeRenderToDataSpace, projectRelativeScaledToDataSpace, projectRenderToDataSpace, projectScaledToDataSpace

Methods inherited from class elki.visualization.projections.AbstractProjection

getInputDimensionality, getProjector, getScale

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface elki.visualization.projections.Projection

getInputDimensionality, getProjector, getScale

Field Detail

dim1

private int dim1

Dimensions for fast projection mode.

dim2

private int dim2

Dimensions for fast projection mode.

Constructor Detail

Simple2D

public Simple2D(Projector p,
                LinearScale[] scales,
                int ax1,
                int ax2)

Constructor with a given database and axes.

Parameters:

p - Projector

scales - Scales to use

ax1 - First axis

ax2 - Second axis

Method Detail

fastProjectDataToRenderSpace

public double[] fastProjectDataToRenderSpace(double[] data)

Description copied from interface: Projection2D

Project a data vector from data space to rendering space.

Specified by:

fastProjectDataToRenderSpace in interface Projection2D

Parameters:

data - vector in data space

Returns:

vector in rendering space

fastProjectDataToRenderSpace

public double[] fastProjectDataToRenderSpace(NumberVector data)

Description copied from interface: Projection2D

Project a data vector from data space to rendering space.

Specified by:

fastProjectDataToRenderSpace in interface Projection2D

Parameters:

data - vector in data space

Returns:

vector in rendering space

fastProjectDataToScaledSpace

public double[] fastProjectDataToScaledSpace(double[] data)

Description copied from interface: Projection2D

Project a data vector from data space to scaled space.

Specified by:

fastProjectDataToScaledSpace in interface Projection2D

Parameters:

data - vector in data space

Returns:

vector in scaled space

fastProjectDataToScaledSpace

public double[] fastProjectDataToScaledSpace(NumberVector data)

Description copied from interface: Projection2D

Project a data vector from data space to scaled space.

Specified by:

fastProjectDataToScaledSpace in interface Projection2D

Parameters:

data - vector in data space

Returns:

vector in scaled space

fastProjectScaledToRenderSpace

public double[] fastProjectScaledToRenderSpace(double[] v)

Description copied from interface: Projection2D

Project a vector from scaled space to rendering space.

Specified by:

fastProjectScaledToRenderSpace in interface Projection2D

Parameters:

v - vector in scaled space

Returns:

vector in rendering space

fastProjectRenderToDataSpace

public double[] fastProjectRenderToDataSpace(double x,
                                             double y)

Description copied from interface: Projection2D

Project a data vector from rendering space to data space.

Specified by:

fastProjectRenderToDataSpace in interface Projection2D

Parameters:

x - X coordinate

y - Y coordinate

Returns:

vector in data space

fastProjectRenderToScaledSpace

public double[] fastProjectRenderToScaledSpace(double x,
                                               double y)

Description copied from interface: Projection2D

Project a vector from rendering space to scaled space.

Specified by:

fastProjectRenderToScaledSpace in interface Projection2D

Parameters:

x - X coordinate

y - Y coordinate

Returns:

vector in scaled space

fastProjectRelativeDataToRenderSpace

public double[] fastProjectRelativeDataToRenderSpace(double[] data)

Description copied from interface: Projection2D

Project a data vector from data space to rendering space.

Specified by:

fastProjectRelativeDataToRenderSpace in interface Projection2D

Parameters:

data - vector in data space

Returns:

vector in rendering space

fastProjectRelativeDataToRenderSpace

public double[] fastProjectRelativeDataToRenderSpace(NumberVector data)

Description copied from interface: Projection2D

Project a data vector from data space to rendering space.

Specified by:

fastProjectRelativeDataToRenderSpace in interface Projection2D

Parameters:

data - vector in data space

Returns:

vector in rendering space

fastProjectRelativeScaledToRenderSpace

public double[] fastProjectRelativeScaledToRenderSpace(double[] vr)

Description copied from interface: Projection2D

Project a vector from scaled space to rendering space.

Specified by:

fastProjectRelativeScaledToRenderSpace in interface Projection2D

Parameters:

vr - vector in scaled space

Returns:

vector in rendering space

getVisibleDimensions2D

public long[] getVisibleDimensions2D()

Description copied from interface: Projection2D

Get a bit set of dimensions that are visible.

Specified by:

getVisibleDimensions2D in interface Projection2D

Returns:

Bit set, first dimension is bit 0.

estimateViewport

public CanvasSize estimateViewport()

Description copied from interface: Projection2D

Estimate the viewport requirements

Specified by:

estimateViewport in interface Projection2D

Returns:

Canvas size obtained from projecting scale endpoints

rearrange

protected double[] rearrange(double[] v)

Description copied from class: AbstractSimpleProjection

Method to rearrange components.

Specified by:

rearrange in class AbstractSimpleProjection

Parameters:

v - double[] to rearrange

Returns:

rearranged copy

dearrange

protected double[] dearrange(double[] v)

Description copied from class: AbstractSimpleProjection

Undo the rearrangement of components.

Specified by:

dearrange in class AbstractSimpleProjection

Parameters:

v - double[] to undo the rearrangement

Returns:

rearranged-undone copy

getMenuName

public java.lang.String getMenuName()

Description copied from interface: VisualizationItem

Name to display in the menu. May be null or empty string.

Specified by:

getMenuName in interface VisualizationItem

Overrides:

getMenuName in class AbstractProjection

Returns:

Menu name.