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package de.lmu.ifi.dbs.elki.visualization.projections;
/*
This file is part of ELKI:
Environment for Developing KDD-Applications Supported by Index-Structures
Copyright (C) 2012
Ludwig-Maximilians-Universität München
Lehr- und Forschungseinheit für Datenbanksysteme
ELKI Development Team
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import de.lmu.ifi.dbs.elki.data.NumberVector;
import de.lmu.ifi.dbs.elki.math.scales.LinearScale;
/**
* Projection to parallel coordinates that allows reordering and inversion of
* axes.
*
* Note: when using this projection, pay attention to the two different schemes
* of dimension numbering: by input dimension and by axis position.
*
* @author Robert Rödler
* @author Erich Schubert
*/
public interface ProjectionParallel extends Projection {
/**
* Get inversion flag of axis.
*
* @param axis Axis (reordered) position
* @return Inversion flag
*/
public boolean isAxisInverted(int axis);
/**
* Set inversion flag of axis.
*
* @param axis Axis (reordered) position
* @param bool Value of inversion flag
*/
public void setAxisInverted(int axis, boolean bool);
/**
* Toggle inverted flag of axis.
*
* @param axis Axis (reordered) position
*/
public void toggleAxisInverted(int axis);
/**
* Get inversion flag of dimension.
*
* @param truedim Dimension in original numbering
* @return Inversion flag
*/
public boolean isDimInverted(int truedim);
/**
* Set inversion flag of a dimension.
*
* @param truedim Dimension in original numbering
* @param bool Value of inversion flag
*/
public void setDimInverted(int truedim, boolean bool);
/**
* Toggle inverted flag of dimension.
*
* @param truedim Dimension in original numbering
*/
public void toggleDimInverted(int truedim);
/**
* Get scale for the given axis
*
* @param axis Axis (reordered) position
* @return Axis scale
*/
public LinearScale getAxisScale(int axis);
/**
* Test whether the current axis is visible
*
* @param axis Axis (reordered) position
* @return Visibility of axis
*/
public boolean isAxisVisible(int axis);
/**
* Set the visibility of the axis.
*
* @param axis Axis number
* @param vis Visibility status
*/
public void setAxisVisible(int axis, boolean vis);
/**
* Toggle visibility of the axis.
*
* @param axis Axis number
*/
public void toggleAxisVisible(int axis);
/**
* Get the number of visible dimension.
*
* @return Number of visible dimensions
*/
public int getVisibleDimensions();
/**
* Exchange axes A and B
* @param a First axis
* @param b Second axis
*/
public void swapAxes(int a, int b);
/**
* shift a dimension to another position
*
* @param axis axis to shift
* @param rn new position
*/
public void moveAxis(int axis, int rn);
/**
* Get the dimension for the given axis number
*
* @param axis Axis number
* @return Dimension
*/
public int getDimForAxis(int axis);
/**
* Get the dimension for the given visible axis
*
* @param axis Axis number (visible axes only)
* @return Dimension
*/
public int getDimForVisibleAxis(int axis);
/**
* Fast project a vector from data to render space
*
* @param v Input vector
* @return Vector with reordering, inversions and scales applied.
*/
public double[] fastProjectDataToRenderSpace(double[] v);
/**
* Fast project a vector from data to render space
*
* @param v Input vector
* @return Vector with reordering, inversions and scales applied.
*/
public double[] fastProjectDataToRenderSpace(NumberVector<?> v);
/**
* Project the value of a single axis to its display value
*
* @param value Input value
* @param axis Axis to use for scaling and inversion
* @return Transformed value
*/
public double fastProjectDataToRenderSpace(double value, int axis);
/**
* Project a display value back to the original data space
*
* @param value transformed value
* @param axis Axis to use for scaling and inversion
* @return Original value
*/
public double fastProjectRenderToDataSpace(double value, int axis);
/**
* Find the axis assinged to the given dimension.
*
* @param truedim Dimension
* @return Axis number
*/
public int getAxisForDim(int truedim);
}
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