de.lmu.ifi.dbs.elki.visualization.projections

Interface Projection2D

All Superinterfaces:

Projection, VisualizationItem

All Known Implementing Classes:

AffineProjection, Simple2D

public interface Projection2D
extends Projection

Projections that have specialized methods to only compute the first two dimensions of the projection.

Since:

0.4.0

Author:

Erich Schubert

Field Summary

Fields inherited from interface de.lmu.ifi.dbs.elki.visualization.projections.Projection

INVSCALE, SCALE

Method Summary

Modifier and Type	Method and Description
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[] v) 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.
long[]	getVisibleDimensions2D() Get a bit set of dimensions that are visible.

Methods inherited from interface de.lmu.ifi.dbs.elki.visualization.projections.Projection

getInputDimensionality, getProjector, getScale

Methods inherited from interface de.lmu.ifi.dbs.elki.visualization.VisualizationItem

getMenuName

Method Detail

fastProjectDataToRenderSpace

double[] fastProjectDataToRenderSpace(double[] data)

Project a data vector from data space to rendering space.

Parameters:

data - vector in data space

Returns:

vector in rendering space

fastProjectDataToRenderSpace

double[] fastProjectDataToRenderSpace(NumberVector data)

Project a data vector from data space to rendering space.

Parameters:

data - vector in data space

Returns:

vector in rendering space

fastProjectDataToScaledSpace

double[] fastProjectDataToScaledSpace(double[] data)

Project a data vector from data space to scaled space.

Parameters:

data - vector in data space

Returns:

vector in scaled space

fastProjectDataToScaledSpace

double[] fastProjectDataToScaledSpace(NumberVector data)

Project a data vector from data space to scaled space.

Parameters:

data - vector in data space

Returns:

vector in scaled space

fastProjectScaledToRenderSpace

double[] fastProjectScaledToRenderSpace(double[] v)

Project a vector from scaled space to rendering space.

Parameters:

v - vector in scaled space

Returns:

vector in rendering space

fastProjectRenderToDataSpace

double[] fastProjectRenderToDataSpace(double x,
                                      double y)

Project a data vector from rendering space to data space.

Parameters:

x - X coordinate

y - Y coordinate

Returns:

vector in data space

fastProjectRenderToScaledSpace

double[] fastProjectRenderToScaledSpace(double x,
                                        double y)

Project a vector from rendering space to scaled space.

Parameters:

x - X coordinate

y - Y coordinate

Returns:

vector in scaled space

fastProjectRelativeDataToRenderSpace

double[] fastProjectRelativeDataToRenderSpace(double[] data)

Project a data vector from data space to rendering space.

Parameters:

data - vector in data space

Returns:

vector in rendering space

fastProjectRelativeDataToRenderSpace

double[] fastProjectRelativeDataToRenderSpace(NumberVector data)

Project a data vector from data space to rendering space.

Parameters:

data - vector in data space

Returns:

vector in rendering space

fastProjectRelativeScaledToRenderSpace

double[] fastProjectRelativeScaledToRenderSpace(double[] v)

Project a vector from scaled space to rendering space.

Parameters:

v - vector in scaled space

Returns:

vector in rendering space

estimateViewport

CanvasSize estimateViewport()

Estimate the viewport requirements

Returns:

Canvas size obtained from projecting scale endpoints

getVisibleDimensions2D

long[] getVisibleDimensions2D()

Get a bit set of dimensions that are visible.

Returns:

Bit set, first dimension is bit 0.