package de.lmu.ifi.dbs.elki.visualization.visualizers.parallel.selection;
/*
This file is part of ELKI:
Environment for Developing KDD-Applications Supported by Index-Structures
Copyright (C) 2011
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 java.util.ArrayList;
import org.apache.batik.util.SVGConstants;
import org.w3c.dom.Element;
import de.lmu.ifi.dbs.elki.data.NumberVector;
import de.lmu.ifi.dbs.elki.result.DBIDSelection;
import de.lmu.ifi.dbs.elki.result.HierarchicalResult;
import de.lmu.ifi.dbs.elki.result.RangeSelection;
import de.lmu.ifi.dbs.elki.result.Result;
import de.lmu.ifi.dbs.elki.result.ResultUtil;
import de.lmu.ifi.dbs.elki.result.SelectionResult;
import de.lmu.ifi.dbs.elki.utilities.iterator.IterableIterator;
import de.lmu.ifi.dbs.elki.utilities.pairs.DoubleDoublePair;
import de.lmu.ifi.dbs.elki.visualization.VisualizationTask;
import de.lmu.ifi.dbs.elki.visualization.css.CSSClass;
import de.lmu.ifi.dbs.elki.visualization.projector.ParallelPlotProjector;
import de.lmu.ifi.dbs.elki.visualization.style.StyleLibrary;
import de.lmu.ifi.dbs.elki.visualization.svg.SVGPlot;
import de.lmu.ifi.dbs.elki.visualization.svg.SVGUtil;
import de.lmu.ifi.dbs.elki.visualization.visualizers.AbstractVisFactory;
import de.lmu.ifi.dbs.elki.visualization.visualizers.Visualization;
import de.lmu.ifi.dbs.elki.visualization.visualizers.parallel.AbstractParallelVisualization;
import de.lmu.ifi.dbs.elki.visualization.visualizers.thumbs.ThumbnailVisualization;
/**
* Visualizer for generating an SVG-Element representing the selected range for
* each dimension
*
* @author Robert Rödler
*
* @apiviz.has SelectionResult oneway - - visualizes
* @apiviz.has RangeSelection oneway - - visualizes
*/
public class SelectionAxisRangeVisualization extends AbstractParallelVisualization<NumberVector<?, ?>> {
/**
* A short name characterizing this Visualizer.
*/
private static final String NAME = "Selection Axis Range";
/**
* CSS Class for the range marker
*/
public static final String MARKER = "selectionAxisRange";
/**
* Constructor.
*
* @param task Visualization task
*/
public SelectionAxisRangeVisualization(VisualizationTask task) {
super(task);
addCSSClasses(svgp);
context.addResultListener(this);
incrementalRedraw();
}
@Override
public void destroy() {
context.removeResultListener(this);
super.destroy();
}
/**
* Adds the required CSS-Classes
*
* @param svgp SVG-Plot
*/
private void addCSSClasses(SVGPlot svgp) {
final StyleLibrary style = context.getStyleLibrary();
// Class for the cube
if(!svgp.getCSSClassManager().contains(MARKER)) {
CSSClass cls = new CSSClass(this, MARKER);
cls.setStatement(SVGConstants.CSS_STROKE_VALUE, style.getColor(StyleLibrary.SELECTION));
cls.setStatement(SVGConstants.CSS_STROKE_OPACITY_PROPERTY, style.getOpacity(StyleLibrary.SELECTION));
cls.setStatement(SVGConstants.CSS_STROKE_WIDTH_PROPERTY, style.getLineWidth(StyleLibrary.PLOT));
cls.setStatement(SVGConstants.CSS_STROKE_LINECAP_PROPERTY, SVGConstants.CSS_ROUND_VALUE);
cls.setStatement(SVGConstants.CSS_STROKE_LINEJOIN_PROPERTY, SVGConstants.CSS_ROUND_VALUE);
cls.setStatement(SVGConstants.CSS_FILL_PROPERTY, style.getColor(StyleLibrary.SELECTION));
cls.setStatement(SVGConstants.CSS_FILL_OPACITY_PROPERTY, style.getOpacity(StyleLibrary.SELECTION));
svgp.addCSSClassOrLogError(cls);
}
}
@Override
protected void redraw() {
DBIDSelection selContext = context.getSelection();
if(selContext == null || !(selContext instanceof RangeSelection)) {
return;
}
DoubleDoublePair[] ranges = ((RangeSelection) selContext).getRanges();
if(ranges == null) {
return;
}
// Project:
double[] min = new double[ranges.length];
double[] max = new double[ranges.length];
for(int d = 0; d < ranges.length; d++) {
if(ranges[d] != null) {
min[d] = ranges[d].first;
max[d] = ranges[d].second;
}
}
min = proj.fastProjectDataToRenderSpace(min);
max = proj.fastProjectDataToRenderSpace(max);
int dim = proj.getVisibleDimensions();
for(int d = 0; d < dim; d++) {
if(ranges[proj.getDimForVisibleAxis(d)] != null) {
double amin = Math.min(min[d], max[d]);
double amax = Math.max(min[d], max[d]);
Element rect = svgp.svgRect(getVisibleAxisX(d) - (0.01 * StyleLibrary.SCALE), amin, 0.02 * StyleLibrary.SCALE, amax - amin);
SVGUtil.addCSSClass(rect, MARKER);
layer.appendChild(rect);
}
}
}
/**
* Factory for visualizers to generate an SVG-Element containing a cube as
* marker representing the selected range for each dimension
*
* @author Robert Rödler
*
* @apiviz.stereotype factory
* @apiviz.uses SelectionAxisRangeVisualization oneway - - «create»
*/
public static class Factory extends AbstractVisFactory {
/**
* Constructor.
*/
public Factory() {
super();
thumbmask |= ThumbnailVisualization.ON_SELECTION;
}
@Override
public Visualization makeVisualization(VisualizationTask task) {
return new SelectionAxisRangeVisualization(task);
}
@Override
public void processNewResult(HierarchicalResult baseResult, Result result) {
final ArrayList<SelectionResult> selectionResults = ResultUtil.filterResults(result, SelectionResult.class);
for(SelectionResult selres : selectionResults) {
IterableIterator<ParallelPlotProjector<?>> ps = ResultUtil.filteredResults(baseResult, ParallelPlotProjector.class);
for(ParallelPlotProjector<?> p : ps) {
final VisualizationTask task = new VisualizationTask(NAME, selres, p.getRelation(), this);
task.put(VisualizationTask.META_LEVEL, VisualizationTask.LEVEL_DATA - 1);
baseResult.getHierarchy().add(selres, task);
baseResult.getHierarchy().add(p, task);
}
}
}
}
}