weka.clusterers.forOPTICSAndDBScan.OPTICS_GUI.GraphPanel Maven / Gradle / Ivy
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The OPTICS and DBScan clustering algorithms. Martin Ester, Hans-Peter Kriegel, Joerg Sander, Xiaowei Xu: A Density-Based Algorithm for Discovering Clusters in Large Spatial Databases with Noise. In: Second International Conference on Knowledge Discovery and Data Mining, 226-231, 1996; Mihael Ankerst, Markus M. Breunig, Hans-Peter Kriegel, Joerg Sander: OPTICS: Ordering Points To Identify the Clustering Structure. In: ACM SIGMOD International Conference on Management of Data, 49-60, 1999.
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/*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see
* GraphPanel.java
* Authors: Rainer Holzmann, Zhanna Melnikova-Albrecht
* Date: Sep 16, 2004
* Time: 10:28:19 AM
* $ Revision 1.4 $
*
*
* @author Zhanna Melnikova-Albrecht ([email protected])
* @author Rainer Holzmann ([email protected])
* @version $Revision: 10838 $
*/
public class GraphPanel
extends JComponent
implements RevisionHandler {
/** for serialization */
private static final long serialVersionUID = 7917937528738361470L;
/**
* Holds the clustering results
*/
private ArrayList resultVector;
/**
* Holds the value that is multiplied with the original values of core- and reachability
* distances in order to get better graphical views
*/
private int verticalAdjustment;
/**
* Specifies the color for displaying core-distances
*/
private Color coreDistanceColor;
/**
* Specifies the color for displaying reachability-distances
*/
private Color reachabilityDistanceColor;
/**
* Specifies the width for displaying the distances
*/
private int widthSlider;
/**
* Holds the flag for showCoreDistances
*/
private boolean showCoreDistances;
/**
* Holds the flag for showrRechabilityDistances
*/
private boolean showReachabilityDistances;
/**
* Holds the index of the last toolTip
*/
private int recentIndex = -1;
// *****************************************************************************************************************
// constructors
// *****************************************************************************************************************
public GraphPanel(ArrayList resultVector,
int verticalAdjustment,
boolean showCoreDistances,
boolean showReachbilityDistances) {
this.resultVector = resultVector;
this.verticalAdjustment = verticalAdjustment;
coreDistanceColor = new Color(100, 100, 100);
reachabilityDistanceColor = Color.orange;
widthSlider = 5;
this.showCoreDistances = showCoreDistances;
this.showReachabilityDistances = showReachbilityDistances;
addMouseMotionListener(new MouseHandler());
}
// *****************************************************************************************************************
// methods
// *****************************************************************************************************************
/**
* Draws the OPTICS Plot
* @param g
*/
protected void paintComponent(Graphics g) {
if (isOpaque()) {
Dimension size = getSize();
g.setColor(getBackground());
g.fillRect(0, 0, size.width, size.height);
}
int stepSize = 0;
int cDist = 0;
int rDist = 0;
for (int vectorIndex = 0; vectorIndex < resultVector.size(); vectorIndex++) {
double coreDistance = ((DataObject) resultVector.get(vectorIndex)).getCoreDistance();
double reachDistance = ((DataObject) resultVector.get(vectorIndex)).getReachabilityDistance();
if (coreDistance == DataObject.UNDEFINED)
cDist = getHeight();
else
cDist = (int) (coreDistance * verticalAdjustment);
if (reachDistance == DataObject.UNDEFINED)
rDist = getHeight();
else
rDist = (int) (reachDistance * verticalAdjustment);
int x = vectorIndex + stepSize;
if (isShowCoreDistances()) {
/**
* Draw coreDistance
*/
g.setColor(coreDistanceColor);
g.fillRect(x, getHeight() - cDist, widthSlider, cDist);
}
if (isShowReachabilityDistances()) {
int sizer = widthSlider;
if (!isShowCoreDistances()) sizer = 0;
/**
* Draw reachabilityDistance
*/
g.setColor(reachabilityDistanceColor);
g.fillRect(x + sizer, getHeight() - rDist, widthSlider, rDist);
}
if (isShowCoreDistances() && isShowReachabilityDistances()) {
stepSize += (widthSlider * 2);
} else
stepSize += widthSlider;
}
}
/**
* Sets a new resultVector
* @param resultVector
*/
public void setResultVector(ArrayList resultVector) {
this.resultVector = resultVector;
}
/**
* Displays a toolTip for the selected DataObject
* @param toolTip
*/
public void setNewToolTip(String toolTip) {
setToolTipText(toolTip);
}
/**
* Adjusts the size of this panel in respect of the shown content
* @param serObject SERObject that contains the OPTICS clustering results
*/
public void adjustSize(SERObject serObject) {
int i = 0;
if (isShowCoreDistances() && isShowReachabilityDistances())
i = 10;
else if ((isShowCoreDistances() && !isShowReachabilityDistances()) ||
!isShowCoreDistances() && isShowReachabilityDistances())
i = 5;
setSize(new Dimension((i * serObject.getDatabaseSize()) +
serObject.getDatabaseSize(), getHeight()));
setPreferredSize(new Dimension((i * serObject.getDatabaseSize()) +
serObject.getDatabaseSize(), getHeight()));
}
/**
* Returns the flag for showCoreDistances
* @return True or false
*/
public boolean isShowCoreDistances() {
return showCoreDistances;
}
/**
* Sets the flag for showCoreDistances
* @param showCoreDistances
*/
public void setShowCoreDistances(boolean showCoreDistances) {
this.showCoreDistances = showCoreDistances;
}
/**
* Returns the flag for showReachabilityDistances
* @return True or false
*/
public boolean isShowReachabilityDistances() {
return showReachabilityDistances;
}
/**
* Sets the flag for showReachabilityDistances
* @param showReachabilityDistances
*/
public void setShowReachabilityDistances(boolean showReachabilityDistances) {
this.showReachabilityDistances = showReachabilityDistances;
}
/**
* Sets a new value for the vertical verticalAdjustment
* @param verticalAdjustment
*/
public void setVerticalAdjustment(int verticalAdjustment) {
this.verticalAdjustment = verticalAdjustment;
}
/**
* Sets a new color for the coreDistance
* @param coreDistanceColor
*/
public void setCoreDistanceColor(Color coreDistanceColor) {
this.coreDistanceColor = coreDistanceColor;
repaint();
}
/**
* Sets a new color for the reachabilityDistance
* @param reachabilityDistanceColor
*/
public void setReachabilityDistanceColor(Color reachabilityDistanceColor) {
this.reachabilityDistanceColor = reachabilityDistanceColor;
repaint();
}
// *****************************************************************************************************************
// inner classes
// *****************************************************************************************************************
private class MouseHandler
extends MouseMotionAdapter
implements RevisionHandler {
/**
* Invoked when the mouse button has been moved on a component
* (with no buttons no down).
*/
public void mouseMoved(MouseEvent e) {
showToolTip(e.getX());
}
/**
* Shows a toolTip with the dataObjects parameters (c-dist, r-dist, key, attributes . . .)
* @param x MouseCoordinate X
* @return boolean
*/
private boolean showToolTip(int x) {
int i = 0;
if (isShowCoreDistances() && isShowReachabilityDistances())
i = 11;
else if ((isShowCoreDistances() && !isShowReachabilityDistances()) ||
!isShowCoreDistances() && isShowReachabilityDistances() ||
!isShowCoreDistances() && !isShowReachabilityDistances())
i = 6;
if ((x / i) == recentIndex)
return false;
else
recentIndex = x / i;
DataObject dataObject = null;
try {
dataObject = (DataObject) resultVector.get(recentIndex);
} catch (Exception e) {
}
if (dataObject != null) {
if (!isShowCoreDistances() && !isShowReachabilityDistances()) {
setNewToolTip("Please select a distance" +
""
);
} else
setNewToolTip("" +
"DataObject: " + dataObject + " Key: " + dataObject.getKey() + " " +
(isShowCoreDistances() ? "" : "") + "Core-Distance:" +
(isShowCoreDistances() ? "" : "") +
" " +
(isShowCoreDistances() ? "" : "") +
((dataObject.getCoreDistance() == DataObject.UNDEFINED) ? "UNDEFINED" :
Utils.doubleToString(dataObject.getCoreDistance(), 3, 5)) +
(isShowCoreDistances() ? "" : "") +
" " +
(isShowReachabilityDistances() ? "" : "") + "Reachability-Distance:" +
(isShowReachabilityDistances() ? "" : "") +
" " +
(isShowReachabilityDistances() ? "" : "") +
((dataObject.getReachabilityDistance() == DataObject.UNDEFINED) ? "UNDEFINED" :
Utils.doubleToString(dataObject.getReachabilityDistance(), 3, 5)) +
(isShowReachabilityDistances() ? "" : "") +
"
"
);
}
return true;
}
/**
* Returns the revision string.
*
* @return the revision
*/
public String getRevision() {
return RevisionUtils.extract("$Revision: 10838 $");
}
}
/**
* Returns the revision string.
*
* @return the revision
*/
public String getRevision() {
return RevisionUtils.extract("$Revision: 10838 $");
}
}