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The Waikato Environment for Knowledge Analysis (WEKA), a machine
learning workbench. This is the stable version. Apart from bugfixes, this version
does not receive any other updates.
/*
* 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 m_plots = new ArrayList();
/** The master plot */
protected PlotData2D m_masterPlot = null;
/** The name of the master plot */
protected String m_masterName = "master plot";
/** The instances to be plotted */
protected Instances m_plotInstances = null;
/**
* An optional "compainion" of the panel. If specified, this class will get to
* do its thing with our graphics context before we do any drawing. Eg. the
* visualize panel may need to draw polygons etc. before we draw plot axis and
* data points
*/
protected Plot2DCompanion m_plotCompanion = null;
/** the class for displaying instance info. */
protected Class m_InstanceInfoFrameClass = null;
/** For popping up text info on data points */
protected JFrame m_InstanceInfo = null;
/** The list of the colors used */
protected ArrayList m_colorList;
/** default colours for colouring discrete class */
protected Color[] m_DefaultColors = { Color.blue, Color.red, Color.green,
Color.cyan, Color.pink, new Color(255, 0, 255), Color.orange,
new Color(255, 0, 0), new Color(0, 255, 0), Color.white };
/**
* Indexes of the attributes to go on the x and y axis and the attribute to
* use for colouring and the current shape for drawing
*/
protected int m_xIndex = 0;
protected int m_yIndex = 0;
protected int m_cIndex = 0;
protected int m_sIndex = 0;
/**
* Holds the min and max values of the x, y and colouring attributes over all
* plots
*/
protected double m_maxX;
protected double m_minX;
protected double m_maxY;
protected double m_minY;
protected double m_maxC;
protected double m_minC;
/** Axis padding */
protected final int m_axisPad = 5;
/** Tick size */
protected final int m_tickSize = 5;
/** the offsets of the axes once label metrics are calculated */
protected int m_XaxisStart = 0;
protected int m_YaxisStart = 0;
protected int m_XaxisEnd = 0;
protected int m_YaxisEnd = 0;
/**
* if the user resizes the window, or the attributes selected for the
* attributes change, then the lookup table for points needs to be
* recalculated
*/
protected boolean m_plotResize = true;
/** if the user changes attribute assigned to an axis */
protected boolean m_axisChanged = false;
/**
* An array used to show if a point is hidden or not. This is used for
* speeding up the drawing of the plot panel although I am not sure how much
* performance this grants over not having it.
*/
protected int[][] m_drawnPoints;
/** Font for labels */
protected Font m_labelFont;
protected FontMetrics m_labelMetrics = null;
/** the level of jitter */
protected int m_JitterVal = 0;
/** random values for perterbing the data points */
protected Random m_JRand = new Random(0);
/** Constructor */
public Plot2D() {
super();
setProperties();
this.setBackground(m_backgroundColour);
m_drawnPoints = new int[this.getWidth()][this.getHeight()];
/** Set up some default colours */
m_colorList = new ArrayList(10);
for (int noa = m_colorList.size(); noa < 10; noa++) {
Color pc = m_DefaultColors[noa % 10];
int ija = noa / 10;
ija *= 2;
for (int j = 0; j < ija; j++) {
pc = pc.darker();
}
m_colorList.add(pc);
}
}
/**
* Set the properties for Plot2D
*/
private void setProperties() {
if (VisualizeUtils.VISUALIZE_PROPERTIES != null) {
String thisClass = this.getClass().getName();
String axisKey = thisClass + ".axisColour";
String backgroundKey = thisClass + ".backgroundColour";
String axisColour =
VisualizeUtils.VISUALIZE_PROPERTIES.getProperty(axisKey);
if (axisColour == null) {
/*
* System.err.println("Warning: no configuration property found in "
* +VisualizeUtils.PROPERTY_FILE +" for "+axisKey);
*/
} else {
// System.err.println("Setting axis colour to: "+axisColour);
m_axisColour = VisualizeUtils.processColour(axisColour, m_axisColour);
}
String backgroundColour =
VisualizeUtils.VISUALIZE_PROPERTIES.getProperty(backgroundKey);
if (backgroundColour == null) {
/*
* System.err.println("Warning: no configuration property found in "
* +VisualizeUtils.PROPERTY_FILE +" for "+backgroundKey);
*/
} else {
// System.err.println("Setting background colour to: "+backgroundColour);
m_backgroundColour =
VisualizeUtils.processColour(backgroundColour, m_backgroundColour);
}
try {
m_InstanceInfoFrameClass =
Class.forName(VisualizeUtils.VISUALIZE_PROPERTIES.getProperty(
thisClass + ".instanceInfoFrame",
"weka.gui.visualize.InstanceInfoFrame"));
} catch (Exception e) {
e.printStackTrace();
m_InstanceInfoFrameClass = InstanceInfoFrame.class;
}
}
}
/**
* Apply settings
*
* @param settings the settings to apply
* @param ownerID the ID of the owner perspective, panel etc. to use when
* looking up our settings
*/
public void applySettings(Settings settings, String ownerID) {
m_axisColour =
settings.getSetting(ownerID,
VisualizeUtils.VisualizeDefaults.AXIS_COLOUR_KEY,
VisualizeUtils.VisualizeDefaults.AXIS_COLOR,
Environment.getSystemWide());
m_backgroundColour =
settings.getSetting(ownerID,
VisualizeUtils.VisualizeDefaults.BACKGROUND_COLOUR_KEY,
VisualizeUtils.VisualizeDefaults.BACKGROUND_COLOR,
Environment.getSystemWide());
this.setBackground(m_backgroundColour);
repaint();
}
/**
* Set a companion class. This is a class that might want to render something
* on the plot before we do our thing. Eg, Malcolm's shape drawing stuff needs
* to happen before we plot axis and points
*
* @param p a companion class
*/
public void setPlotCompanion(Plot2DCompanion p) {
m_plotCompanion = p;
}
/**
* Set level of jitter and repaint the plot using the new jitter value
*
* @param j the level of jitter
*/
public void setJitter(int j) {
if (m_plotInstances.numAttributes() > 0
&& m_plotInstances.numInstances() > 0) {
if (j >= 0) {
m_JitterVal = j;
m_JRand = new Random(m_JitterVal);
// if (m_pointLookup != null) {
m_drawnPoints =
new int[m_XaxisEnd - m_XaxisStart + 1][m_YaxisEnd - m_YaxisStart + 1];
updatePturb();
// }
this.repaint();
}
}
}
/**
* Set a list of colours to use when colouring points according to class
* values or cluster numbers
*
* @param cols the list of colours to use
*/
public void setColours(ArrayList cols) {
m_colorList = cols;
}
/**
* Set the index of the attribute to go on the x axis
*
* @param x the index of the attribute to use on the x axis
*/
public void setXindex(int x) {
m_xIndex = x;
for (int i = 0; i < m_plots.size(); i++) {
m_plots.get(i).setXindex(m_xIndex);
}
determineBounds();
if (m_JitterVal != 0) {
updatePturb();
}
m_axisChanged = true;
this.repaint();
}
/**
* Set the index of the attribute to go on the y axis
*
* @param y the index of the attribute to use on the y axis
*/
public void setYindex(int y) {
m_yIndex = y;
for (int i = 0; i < m_plots.size(); i++) {
m_plots.get(i).setYindex(m_yIndex);
}
determineBounds();
if (m_JitterVal != 0) {
updatePturb();
}
m_axisChanged = true;
this.repaint();
}
/**
* Set the index of the attribute to use for colouring
*
* @param c the index of the attribute to use for colouring
*/
public void setCindex(int c) {
m_cIndex = c;
for (int i = 0; i < m_plots.size(); i++) {
m_plots.get(i).setCindex(m_cIndex);
}
determineBounds();
m_axisChanged = true;
this.repaint();
}
/**
* Return the list of plots
*
* @return the list of plots
*/
public ArrayList getPlots() {
return m_plots;
}
/**
* Get the master plot
*
* @return the master plot
*/
public PlotData2D getMasterPlot() {
return m_masterPlot;
}
/**
* Return the current max value of the attribute plotted on the x axis
*
* @return the max x value
*/
public double getMaxX() {
return m_maxX;
}
/**
* Return the current max value of the attribute plotted on the y axis
*
* @return the max y value
*/
public double getMaxY() {
return m_maxY;
}
/**
* Return the current min value of the attribute plotted on the x axis
*
* @return the min x value
*/
public double getMinX() {
return m_minX;
}
/**
* Return the current min value of the attribute plotted on the y axis
*
* @return the min y value
*/
public double getMinY() {
return m_minY;
}
/**
* Return the current max value of the colouring attribute
*
* @return the max colour value
*/
public double getMaxC() {
return m_maxC;
}
/**
* Return the current min value of the colouring attribute
*
* @return the min colour value
*/
public double getMinC() {
return m_minC;
}
/**
* Sets the master plot from a set of instances
*
* @param inst the instances
* @exception Exception if instances could not be set
*/
public void setInstances(Instances inst) throws Exception {
// System.err.println("Setting Instances");
PlotData2D tempPlot = new PlotData2D(inst);
tempPlot.setPlotName("master plot");
setMasterPlot(tempPlot);
}
/**
* Set the master plot.
*
* @param master the plot to make the master plot
* @exception Exception if the plot could not be set.
*/
public void setMasterPlot(PlotData2D master) throws Exception {
if (master.m_plotInstances == null) {
throw new Exception("No instances in plot data!");
}
removeAllPlots();
m_masterPlot = master;
m_plots.add(m_masterPlot);
m_plotInstances = m_masterPlot.m_plotInstances;
m_xIndex = 0;
m_yIndex = 0;
m_cIndex = 0;
determineBounds();
}
/**
* Clears all plots
*/
public void removeAllPlots() {
m_masterPlot = null;
m_plotInstances = null;
m_plots = new ArrayList();
m_xIndex = 0;
m_yIndex = 0;
m_cIndex = 0;
}
/**
* Add a plot to the list of plots to display
*
* @param newPlot the new plot to add
* @exception Exception if the plot could not be added
*/
public void addPlot(PlotData2D newPlot) throws Exception {
if (newPlot.m_plotInstances == null) {
throw new Exception("No instances in plot data!");
}
if (m_masterPlot != null) {
if (m_masterPlot.m_plotInstances.equalHeaders(newPlot.m_plotInstances) == false) {
throw new Exception("Plot2D :Plot data's instances are incompatable "
+ " with master plot");
}
} else {
m_masterPlot = newPlot;
m_plotInstances = m_masterPlot.m_plotInstances;
}
m_plots.add(newPlot);
setXindex(m_xIndex);
setYindex(m_yIndex);
setCindex(m_cIndex);
}
/**
* Set up fonts and font metrics
*
* @param gx the graphics context
*/
private void setFonts(Graphics gx) {
if (m_labelMetrics == null) {
m_labelFont = new Font("Monospaced", Font.PLAIN, 12);
m_labelMetrics = gx.getFontMetrics(m_labelFont);
}
gx.setFont(m_labelFont);
}
/**
* Pops up a window displaying attribute information on any instances at a
* point+-plotting_point_size (in panel coordinates)
*
* @param x the x value of the clicked point
* @param y the y value of the clicked point
* @param newFrame true if instance info is to be displayed in a new frame.
*/
public void searchPoints(int x, int y, final boolean newFrame) {
if (m_masterPlot.m_plotInstances != null) {
int longest = 0;
for (int j = 0; j < m_masterPlot.m_plotInstances.numAttributes(); j++) {
if (m_masterPlot.m_plotInstances.attribute(j).name().length() > longest) {
longest = m_masterPlot.m_plotInstances.attribute(j).name().length();
}
}
StringBuffer insts = new StringBuffer();
Vector data = new Vector();
for (int jj = 0; jj < m_plots.size(); jj++) {
PlotData2D temp_plot = (m_plots.get(jj));
data.add(new Instances(temp_plot.m_plotInstances, 0));
for (int i = 0; i < temp_plot.m_plotInstances.numInstances(); i++) {
if (temp_plot.m_pointLookup[i][0] != Double.NEGATIVE_INFINITY) {
double px =
temp_plot.m_pointLookup[i][0] + temp_plot.m_pointLookup[i][2];
double py =
temp_plot.m_pointLookup[i][1] + temp_plot.m_pointLookup[i][3];
// double size = temp_plot.m_pointLookup[i][2];
double size = temp_plot.m_shapeSize[i];
if ((x >= px - size) && (x <= px + size) && (y >= py - size)
&& (y <= py + size)) {
{
data.get(jj).add(
(Instance) temp_plot.m_plotInstances.instance(i).copy());
insts.append("\nPlot : " + temp_plot.m_plotName
+ "\nInstance: " + (i + 1) + "\n");
for (int j = 0; j < temp_plot.m_plotInstances.numAttributes(); j++) {
for (int k = 0; k < (longest - temp_plot.m_plotInstances
.attribute(j).name().length()); k++) {
insts.append(" ");
}
insts.append(temp_plot.m_plotInstances.attribute(j).name());
insts.append(" : ");
if (temp_plot.m_plotInstances.instance(i).isMissing(j)) {
insts.append("Missing");
} else if (temp_plot.m_plotInstances.attribute(j).isNominal()
|| temp_plot.m_plotInstances.attribute(j).isString()) {
insts.append(temp_plot.m_plotInstances.attribute(j).value(
(int) temp_plot.m_plotInstances.instance(i).value(j)));
} else {
insts
.append(temp_plot.m_plotInstances.instance(i).value(j));
}
insts.append("\n");
}
}
}
}
}
}
// remove datasets that contain no instances
int i = 0;
while (data.size() > i) {
if (data.get(i).numInstances() == 0) {
data.remove(i);
} else {
i++;
}
}
if (insts.length() > 0) {
// Pop up a new frame
if (newFrame || m_InstanceInfo == null) {
try {
final JFrame jf = (JFrame) m_InstanceInfoFrameClass.newInstance();
((InstanceInfo) jf).setInfoText(insts.toString());
((InstanceInfo) jf).setInfoData(data);
final JFrame testf = m_InstanceInfo;
jf.addWindowListener(new WindowAdapter() {
@Override
public void windowClosing(WindowEvent e) {
if (!newFrame || testf == null) {
m_InstanceInfo = null;
}
jf.dispose();
}
});
jf.setVisible(true);
if (m_InstanceInfo == null) {
m_InstanceInfo = jf;
}
} catch (Exception e) {
e.printStackTrace();
}
} else {
// Overwrite info in existing frame
((InstanceInfo) m_InstanceInfo).setInfoText(insts.toString());
((InstanceInfo) m_InstanceInfo).setInfoData(data);
}
}
}
}
/**
* Determine the min and max values for axis and colouring attributes
*/
public void determineBounds() {
double value; // , min, max; NOT USED
// find maximums minimums over all plots
m_minX = m_plots.get(0).m_minX;
m_maxX = m_plots.get(0).m_maxX;
m_minY = m_plots.get(0).m_minY;
m_maxY = m_plots.get(0).m_maxY;
m_minC = m_plots.get(0).m_minC;
m_maxC = m_plots.get(0).m_maxC;
for (int i = 1; i < m_plots.size(); i++) {
value = m_plots.get(i).m_minX;
if (value < m_minX) {
m_minX = value;
}
value = m_plots.get(i).m_maxX;
if (value > m_maxX) {
m_maxX = value;
}
value = m_plots.get(i).m_minY;
if (value < m_minY) {
m_minY = value;
}
value = m_plots.get(i).m_maxY;
if (value > m_maxY) {
m_maxY = value;
}
value = m_plots.get(i).m_minC;
if (value < m_minC) {
m_minC = value;
}
value = m_plots.get(i).m_maxC;
if (value > m_maxC) {
m_maxC = value;
}
}
fillLookup();
this.repaint();
}
// to convert screen coords to attrib values
// note that I use a double to avoid accuracy
// headaches with ints
/**
* convert a Panel x coordinate to a raw x value.
*
* @param scx The Panel x coordinate
* @return A raw x value.
*/
public double convertToAttribX(double scx) {
double temp = m_XaxisEnd - m_XaxisStart;
double temp2 = ((scx - m_XaxisStart) * (m_maxX - m_minX)) / temp;
temp2 = temp2 + m_minX;
return temp2;
}
/**
* convert a Panel y coordinate to a raw y value.
*
* @param scy The Panel y coordinate
* @return A raw y value.
*/
public double convertToAttribY(double scy) {
double temp = m_YaxisEnd - m_YaxisStart;
double temp2 = ((scy - m_YaxisEnd) * (m_maxY - m_minY)) / temp;
temp2 = -(temp2 - m_minY);
return temp2;
}
// ////
/**
* returns a value by which an x value can be peturbed. Makes sure that the x
* value+pturb stays within the plot bounds
*
* @param xvalP the x coordinate to be peturbed
* @param xj a random number to use in calculating a peturb value
* @return a peturb value
*/
int pturbX(double xvalP, double xj) {
int xpturb = 0;
if (m_JitterVal > 0) {
xpturb = (int) (m_JitterVal * (xj / 2.0));
if (((xvalP + xpturb) < m_XaxisStart) || ((xvalP + xpturb) > m_XaxisEnd)) {
xpturb *= -1;
}
}
return xpturb;
}
/**
* Convert an raw x value to Panel x coordinate.
*
* @param xval the raw x value
* @return an x value for plotting in the panel.
*/
public double convertToPanelX(double xval) {
double temp = (xval - m_minX) / (m_maxX - m_minX);
double temp2 = temp * (m_XaxisEnd - m_XaxisStart);
temp2 = temp2 + m_XaxisStart;
return temp2;
}
/**
* returns a value by which a y value can be peturbed. Makes sure that the y
* value+pturb stays within the plot bounds
*
* @param yvalP the y coordinate to be peturbed
* @param yj a random number to use in calculating a peturb value
* @return a peturb value
*/
int pturbY(double yvalP, double yj) {
int ypturb = 0;
if (m_JitterVal > 0) {
ypturb = (int) (m_JitterVal * (yj / 2.0));
if (((yvalP + ypturb) < m_YaxisStart) || ((yvalP + ypturb) > m_YaxisEnd)) {
ypturb *= -1;
}
}
return ypturb;
}
/**
* Convert an raw y value to Panel y coordinate.
*
* @param yval the raw y value
* @return an y value for plotting in the panel.
*/
public double convertToPanelY(double yval) {
double temp = (yval - m_minY) / (m_maxY - m_minY);
double temp2 = temp * (m_YaxisEnd - m_YaxisStart);
temp2 = m_YaxisEnd - temp2;
return temp2;
}
/**
* Draws an X.
*
* @param gx the graphics context
* @param x the x coord
* @param y the y coord
* @param size the size of the shape
*/
private static void drawX(Graphics gx, double x, double y, int size) {
gx.drawLine((int) (x - size), (int) (y - size), (int) (x + size),
(int) (y + size));
gx.drawLine((int) (x + size), (int) (y - size), (int) (x - size),
(int) (y + size));
}
/**
* Draws a plus.
*
* @param gx the graphics context
* @param x the x coord
* @param y the y coord
* @param size the size of the shape
*/
private static void drawPlus(Graphics gx, double x, double y, int size) {
gx.drawLine((int) (x - size), (int) (y), (int) (x + size), (int) (y));
gx.drawLine((int) (x), (int) (y - size), (int) (x), (int) (y + size));
}
/**
* Draws a diamond.
*
* @param gx the graphics context
* @param x the x coord
* @param y the y coord
* @param size the size of the shape
*/
private static void drawDiamond(Graphics gx, double x, double y, int size) {
gx.drawLine((int) (x - size), (int) (y), (int) (x), (int) (y - size));
gx.drawLine((int) (x), (int) (y - size), (int) (x + size), (int) (y));
gx.drawLine((int) (x + size), (int) (y), (int) (x), (int) (y + size));
gx.drawLine((int) (x), (int) (y + size), (int) (x - size), (int) (y));
}
/**
* Draws an triangle (point at top).
*
* @param gx the graphics context
* @param x the x coord
* @param y the y coord
* @param size the size of the shape
*/
private static void drawTriangleUp(Graphics gx, double x, double y, int size) {
gx.drawLine((int) (x), (int) (y - size), (int) (x - size), (int) (y + size));
gx.drawLine((int) (x - size), (int) (y + size), (int) (x + size),
(int) (y + size));
gx.drawLine((int) (x + size), (int) (y + size), (int) (x), (int) (y - size));
}
/**
* Draws an triangle (point at bottom).
*
* @param gx the graphics context
* @param x the x coord
* @param y the y coord
* @param size the size of the shape
*/
private static void
drawTriangleDown(Graphics gx, double x, double y, int size) {
gx.drawLine((int) (x), (int) (y + size), (int) (x - size), (int) (y - size));
gx.drawLine((int) (x - size), (int) (y - size), (int) (x + size),
(int) (y - size));
gx.drawLine((int) (x + size), (int) (y - size), (int) (x), (int) (y + size));
}
/**
* Draws a data point at a given set of panel coordinates at a given size and
* connects a line to the previous point.
*
* @param x the x coord
* @param y the y coord
* @param xprev the x coord of the previous point
* @param yprev the y coord of the previous point
* @param size the size of the point
* @param shape the shape of the data point (square is reserved for nominal
* error data points). Shapes: 0=x, 1=plus, 2=diamond,
* 3=triangle(up), 4 = triangle (down).
* @param gx the graphics context
*/
protected static void drawDataPoint(double x, double y, double xprev,
double yprev, int size, int shape, Graphics gx) {
drawDataPoint(x, y, size, shape, gx);
// connect a line to the previous point
gx.drawLine((int) x, (int) y, (int) xprev, (int) yprev);
}
/**
* Draws a data point at a given set of panel coordinates at a given size.
*
* @param x the x coord
* @param y the y coord
* @param size the size of the point
* @param shape the shape of the data point (square is reserved for nominal
* error data points). Shapes: 0=x, 1=plus, 2=diamond,
* 3=triangle(up), 4 = triangle (down).
* @param gx the graphics context
*/
protected static void drawDataPoint(double x, double y, int size, int shape,
Graphics gx) {
Font lf = new Font("Monospaced", Font.PLAIN, 12);
FontMetrics fm = gx.getFontMetrics(lf);
if (size == 0) {
size = 1;
}
if (shape != ERROR_SHAPE && shape != MISSING_SHAPE) {
shape = shape % 5;
}
switch (shape) {
case X_SHAPE:
drawX(gx, x, y, size);
break;
case PLUS_SHAPE:
drawPlus(gx, x, y, size);
break;
case DIAMOND_SHAPE:
drawDiamond(gx, x, y, size);
break;
case TRIANGLEUP_SHAPE:
drawTriangleUp(gx, x, y, size);
break;
case TRIANGLEDOWN_SHAPE:
drawTriangleDown(gx, x, y, size);
break;
case ERROR_SHAPE: // draws the nominal error shape
gx.drawRect((int) (x - size), (int) (y - size), (size * 2), (size * 2));
break;
case MISSING_SHAPE:
int hf = fm.getAscent();
int width = fm.stringWidth("M");
gx.drawString("M", (int) (x - (width / 2)), (int) (y + (hf / 2)));
break;
}
}
/**
* Updates the perturbed values for the plots when the jitter value is changed
*/
private void updatePturb() {
double xj = 0;
double yj = 0;
for (int j = 0; j < m_plots.size(); j++) {
PlotData2D temp_plot = (m_plots.get(j));
for (int i = 0; i < temp_plot.m_plotInstances.numInstances(); i++) {
if (temp_plot.m_plotInstances.instance(i).isMissing(m_xIndex)
|| temp_plot.m_plotInstances.instance(i).isMissing(m_yIndex)) {
} else {
if (m_JitterVal > 0) {
xj = m_JRand.nextGaussian();
yj = m_JRand.nextGaussian();
}
temp_plot.m_pointLookup[i][2] =
pturbX(temp_plot.m_pointLookup[i][0], xj);
temp_plot.m_pointLookup[i][3] =
pturbY(temp_plot.m_pointLookup[i][1], yj);
}
}
}
}
/**
* Fills the lookup caches for the plots. Also calculates errors for numeric
* predictions (if any) in plots
*/
private void fillLookup() {
for (int j = 0; j < m_plots.size(); j++) {
PlotData2D temp_plot = (m_plots.get(j));
if (temp_plot.m_plotInstances.numInstances() > 0
&& temp_plot.m_plotInstances.numAttributes() > 0) {
for (int i = 0; i < temp_plot.m_plotInstances.numInstances(); i++) {
if (temp_plot.m_plotInstances.instance(i).isMissing(m_xIndex)
|| temp_plot.m_plotInstances.instance(i).isMissing(m_yIndex)) {
temp_plot.m_pointLookup[i][0] = Double.NEGATIVE_INFINITY;
temp_plot.m_pointLookup[i][1] = Double.NEGATIVE_INFINITY;
} else {
double x =
convertToPanelX(temp_plot.m_plotInstances.instance(i).value(
m_xIndex));
double y =
convertToPanelY(temp_plot.m_plotInstances.instance(i).value(
m_yIndex));
temp_plot.m_pointLookup[i][0] = x;
temp_plot.m_pointLookup[i][1] = y;
}
}
}
}
}
/**
* Draws the data points and predictions (if provided).
*
* @param gx the graphics context
*/
private void paintData(Graphics gx) {
for (int j = 0; j < m_plots.size(); j++) {
PlotData2D temp_plot = (m_plots.get(j));
for (int i = 0; i < temp_plot.m_plotInstances.numInstances(); i++) {
if (temp_plot.m_plotInstances.instance(i).isMissing(m_xIndex)
|| temp_plot.m_plotInstances.instance(i).isMissing(m_yIndex)) {
} else {
double x =
(temp_plot.m_pointLookup[i][0] + temp_plot.m_pointLookup[i][2]);
double y =
(temp_plot.m_pointLookup[i][1] + temp_plot.m_pointLookup[i][3]);
double prevx = 0;
double prevy = 0;
if (i > 0) {
prevx =
(temp_plot.m_pointLookup[i - 1][0] + temp_plot.m_pointLookup[i - 1][2]);
prevy =
(temp_plot.m_pointLookup[i - 1][1] + temp_plot.m_pointLookup[i - 1][3]);
}
int x_range = (int) x - m_XaxisStart;
int y_range = (int) y - m_YaxisStart;
if (x_range >= 0 && y_range >= 0) {
if (m_drawnPoints[x_range][y_range] == i
|| m_drawnPoints[x_range][y_range] == 0
|| temp_plot.m_shapeSize[i] == temp_plot.m_alwaysDisplayPointsOfThisSize
|| temp_plot.m_displayAllPoints == true) {
m_drawnPoints[x_range][y_range] = i;
if (temp_plot.m_plotInstances.attribute(m_cIndex).isNominal()) {
if (temp_plot.m_plotInstances.attribute(m_cIndex).numValues() > m_colorList
.size() && !temp_plot.m_useCustomColour) {
extendColourMap(temp_plot.m_plotInstances.attribute(m_cIndex)
.numValues());
}
Color ci;
if (temp_plot.m_plotInstances.instance(i).isMissing(m_cIndex)) {
ci = Color.gray;
} else {
int ind =
(int) temp_plot.m_plotInstances.instance(i).value(m_cIndex);
ci = m_colorList.get(ind);
}
if (!temp_plot.m_useCustomColour) {
gx.setColor(ci);
} else {
gx.setColor(temp_plot.m_customColour);
}
if (temp_plot.m_plotInstances.instance(i).isMissing(m_cIndex)) {
if (temp_plot.m_connectPoints[i] == true) {
drawDataPoint(x, y, prevx, prevy, temp_plot.m_shapeSize[i],
MISSING_SHAPE, gx);
} else {
drawDataPoint(x, y, temp_plot.m_shapeSize[i],
MISSING_SHAPE, gx);
}
} else {
if (temp_plot.m_shapeType[i] == CONST_AUTOMATIC_SHAPE) {
if (temp_plot.m_connectPoints[i] == true) {
drawDataPoint(x, y, prevx, prevy,
temp_plot.m_shapeSize[i], j, gx);
} else {
drawDataPoint(x, y, temp_plot.m_shapeSize[i], j, gx);
}
} else {
if (temp_plot.m_connectPoints[i] == true) {
drawDataPoint(x, y, prevx, prevy,
temp_plot.m_shapeSize[i], temp_plot.m_shapeType[i], gx);
} else {
drawDataPoint(x, y, temp_plot.m_shapeSize[i],
temp_plot.m_shapeType[i], gx);
}
}
}
} else {
double r;
Color ci = null;
if (!temp_plot.m_plotInstances.instance(i).isMissing(m_cIndex)) {
r =
(temp_plot.m_plotInstances.instance(i).value(m_cIndex) - m_minC)
/ (m_maxC - m_minC);
r = (r * 240) + 15;
ci = new Color((int) r, 150, (int) (255 - r));
} else {
ci = Color.gray;
}
if (!temp_plot.m_useCustomColour) {
gx.setColor(ci);
} else {
gx.setColor(temp_plot.m_customColour);
}
if (temp_plot.m_plotInstances.instance(i).isMissing(m_cIndex)) {
if (temp_plot.m_connectPoints[i] == true) {
drawDataPoint(x, y, prevx, prevy, temp_plot.m_shapeSize[i],
MISSING_SHAPE, gx);
} else {
drawDataPoint(x, y, temp_plot.m_shapeSize[i],
MISSING_SHAPE, gx);
}
} else {
if (temp_plot.m_shapeType[i] == CONST_AUTOMATIC_SHAPE) {
if (temp_plot.m_connectPoints[i] == true) {
drawDataPoint(x, y, prevx, prevy,
temp_plot.m_shapeSize[i], j, gx);
} else {
drawDataPoint(x, y, temp_plot.m_shapeSize[i], j, gx);
}
} else {
if (temp_plot.m_connectPoints[i] == true) {
drawDataPoint(x, y, prevx, prevy,
temp_plot.m_shapeSize[i], temp_plot.m_shapeType[i], gx);
} else {
drawDataPoint(x, y, temp_plot.m_shapeSize[i],
temp_plot.m_shapeType[i], gx);
}
}
}
}
}
}
}
}
}
}
/*
* public void determineAxisPositions(Graphics gx) { setFonts(gx); int mxs =
* m_XaxisStart; int mxe = m_XaxisEnd; int mys = m_YaxisStart; int mye =
* m_YaxisEnd; m_axisChanged = false;
*
* int h = this.getHeight(); int w = this.getWidth(); int hf =
* m_labelMetrics.getAscent(); int mswx=0; int mswy=0;
*
* // determineBounds(); int fieldWidthX =
* (int)((Math.log(m_maxX)/Math.log(10)))+1; int precisionX = 1; if
* ((Math.abs(m_maxX-m_minX) < 1) && ((m_maxY-m_minX) != 0)) { precisionX =
* (int)Math.abs(((Math.log(Math.abs(m_maxX-m_minX)) / Math.log(10))))+1; }
* String maxStringX = Utils.doubleToString(m_maxX, fieldWidthX+1+precisionX
* ,precisionX); mswx = m_labelMetrics.stringWidth(maxStringX); int
* fieldWidthY = (int)((Math.log(m_maxY)/Math.log(10)))+1; int precisionY = 1;
* if (Math.abs((m_maxY-m_minY)) < 1 && ((m_maxY-m_minY) != 0)) { precisionY =
* (int)Math.abs(((Math.log(Math.abs(m_maxY-m_minY)) / Math.log(10))))+1; }
* String maxStringY = Utils.doubleToString(m_maxY, fieldWidthY+1+precisionY
* ,precisionY); String minStringY = Utils.doubleToString(m_minY,
* fieldWidthY+1+precisionY ,precisionY);
*
* if (m_plotInstances.attribute(m_yIndex).isNumeric()) { mswy =
* (m_labelMetrics.stringWidth(maxStringY) >
* m_labelMetrics.stringWidth(minStringY)) ?
* m_labelMetrics.stringWidth(maxStringY) :
* m_labelMetrics.stringWidth(minStringY); } else { mswy =
* m_labelMetrics.stringWidth("MM"); }
*
* m_YaxisStart = m_axisPad; m_XaxisStart = 0+m_axisPad+m_tickSize+mswy;
*
* m_XaxisEnd = w-m_axisPad-(mswx/2);
*
* m_YaxisEnd = h-m_axisPad-(2 * hf)-m_tickSize; }
*/
/**
* Draws the axis and a spectrum if the colouring attribute is numeric
*
* @param gx the graphics context
*/
private void paintAxis(Graphics gx) {
setFonts(gx);
int mxs = m_XaxisStart;
int mxe = m_XaxisEnd;
int mys = m_YaxisStart;
int mye = m_YaxisEnd;
m_plotResize = false;
int h = this.getHeight();
int w = this.getWidth();
int hf = m_labelMetrics.getAscent();
int mswx = 0;
int mswy = 0;
// determineBounds();
int precisionXmax = 1;
int precisionXmin = 1;
int precisionXmid = 1;
/*
* if ((Math.abs(m_maxX-m_minX) < 1) && ((m_maxY-m_minX) != 0)) { precisionX
* = (int)Math.abs(((Math.log(Math.abs(m_maxX-m_minX)) / Math.log(10))))+1;
* }
*/
int whole = (int) Math.abs(m_maxX);
double decimal = Math.abs(m_maxX) - whole;
int nondecimal;
nondecimal = (whole > 0) ? (int) (Math.log(whole) / Math.log(10)) : 1;
precisionXmax =
(decimal > 0) ? (int) Math.abs(((Math.log(Math.abs(m_maxX)) / Math
.log(10)))) + 2 : 1;
if (precisionXmax > VisualizeUtils.MAX_PRECISION) {
precisionXmax = 1;
}
String maxStringX =
Utils.doubleToString(m_maxX, nondecimal + 1 + precisionXmax,
precisionXmax);
whole = (int) Math.abs(m_minX);
decimal = Math.abs(m_minX) - whole;
nondecimal = (whole > 0) ? (int) (Math.log(whole) / Math.log(10)) : 1;
precisionXmin =
(decimal > 0) ? (int) Math.abs(((Math.log(Math.abs(m_minX)) / Math
.log(10)))) + 2 : 1;
if (precisionXmin > VisualizeUtils.MAX_PRECISION) {
precisionXmin = 1;
}
String minStringX =
Utils.doubleToString(m_minX, nondecimal + 1 + precisionXmin,
precisionXmin);
mswx = m_labelMetrics.stringWidth(maxStringX);
int precisionYmax = 1;
int precisionYmin = 1;
int precisionYmid = 1;
whole = (int) Math.abs(m_maxY);
decimal = Math.abs(m_maxY) - whole;
nondecimal = (whole > 0) ? (int) (Math.log(whole) / Math.log(10)) : 1;
precisionYmax =
(decimal > 0) ? (int) Math.abs(((Math.log(Math.abs(m_maxY)) / Math
.log(10)))) + 2 : 1;
if (precisionYmax > VisualizeUtils.MAX_PRECISION) {
precisionYmax = 1;
}
String maxStringY =
Utils.doubleToString(m_maxY, nondecimal + 1 + precisionYmax,
precisionYmax);
whole = (int) Math.abs(m_minY);
decimal = Math.abs(m_minY) - whole;
nondecimal = (whole > 0) ? (int) (Math.log(whole) / Math.log(10)) : 1;
precisionYmin =
(decimal > 0) ? (int) Math.abs(((Math.log(Math.abs(m_minY)) / Math
.log(10)))) + 2 : 1;
if (precisionYmin > VisualizeUtils.MAX_PRECISION) {
precisionYmin = 1;
}
String minStringY =
Utils.doubleToString(m_minY, nondecimal + 1 + precisionYmin,
precisionYmin);
if (m_plotInstances.attribute(m_yIndex).isNumeric()) {
mswy =
(m_labelMetrics.stringWidth(maxStringY) > m_labelMetrics
.stringWidth(minStringY)) ? m_labelMetrics.stringWidth(maxStringY)
: m_labelMetrics.stringWidth(minStringY);
mswy += m_labelMetrics.stringWidth("M");
} else {
mswy = m_labelMetrics.stringWidth("MM");
}
m_YaxisStart = m_axisPad;
m_XaxisStart = 0 + m_axisPad + m_tickSize + mswy;
m_XaxisEnd = w - m_axisPad - (mswx / 2);
m_YaxisEnd = h - m_axisPad - (2 * hf) - m_tickSize;
// draw axis
gx.setColor(m_axisColour);
if (m_plotInstances.attribute(m_xIndex).isNumeric()) {
if (w > (2 * mswx)) {
gx.drawString(maxStringX, m_XaxisEnd - (mswx / 2), m_YaxisEnd + hf
+ m_tickSize);
mswx = m_labelMetrics.stringWidth(minStringX);
gx.drawString(minStringX, (m_XaxisStart - (mswx / 2)), m_YaxisEnd + hf
+ m_tickSize);
// draw the middle value
if (w > (3 * mswx) && (m_plotInstances.attribute(m_xIndex).isNumeric())) {
double mid = m_minX + ((m_maxX - m_minX) / 2.0);
whole = (int) Math.abs(mid);
decimal = Math.abs(mid) - whole;
nondecimal = (whole > 0) ? (int) (Math.log(whole) / Math.log(10)) : 1;
precisionXmid =
(decimal > 0) ? (int) Math.abs(((Math.log(Math.abs(mid)) / Math
.log(10)))) + 2 : 1;
if (precisionXmid > VisualizeUtils.MAX_PRECISION) {
precisionXmid = 1;
}
String maxString =
Utils.doubleToString(mid, nondecimal + 1 + precisionXmid,
precisionXmid);
int sw = m_labelMetrics.stringWidth(maxString);
double mx = m_XaxisStart + ((m_XaxisEnd - m_XaxisStart) / 2.0);
gx.drawString(maxString, (int) (mx - ((sw) / 2.0)), m_YaxisEnd + hf
+ m_tickSize);
gx.drawLine((int) mx, m_YaxisEnd, (int) mx, m_YaxisEnd + m_tickSize);
}
}
} else {
int numValues = m_plotInstances.attribute(m_xIndex).numValues();
int maxXStringWidth = (m_XaxisEnd - m_XaxisStart) / numValues;
for (int i = 0; i < numValues; i++) {
String val = m_plotInstances.attribute(m_xIndex).value(i);
int sw = m_labelMetrics.stringWidth(val);
int rm;
// truncate string if necessary
if (sw > maxXStringWidth) {
int incr = (sw / val.length());
rm = (sw - maxXStringWidth) / incr;
if (rm == 0) {
rm = 1;
}
val = val.substring(0, val.length() - rm);
sw = m_labelMetrics.stringWidth(val);
}
if (i == 0) {
gx.drawString(val, (int) convertToPanelX(i), m_YaxisEnd + hf
+ m_tickSize);
} else if (i == numValues - 1) {
if ((i % 2) == 0) {
gx.drawString(val, m_XaxisEnd - sw, m_YaxisEnd + hf + m_tickSize);
} else {
gx.drawString(val, m_XaxisEnd - sw, m_YaxisEnd + (2 * hf)
+ m_tickSize);
}
} else {
if ((i % 2) == 0) {
gx.drawString(val, (int) convertToPanelX(i) - (sw / 2), m_YaxisEnd
+ hf + m_tickSize);
} else {
gx.drawString(val, (int) convertToPanelX(i) - (sw / 2), m_YaxisEnd
+ (2 * hf) + m_tickSize);
}
}
gx.drawLine((int) convertToPanelX(i), m_YaxisEnd,
(int) convertToPanelX(i), m_YaxisEnd + m_tickSize);
}
}
// draw the y axis
if (m_plotInstances.attribute(m_yIndex).isNumeric()) {
if (h > (2 * hf)) {
gx.drawString(maxStringY, m_XaxisStart - mswy - m_tickSize,
m_YaxisStart + (hf));
gx.drawString(minStringY, (m_XaxisStart - mswy - m_tickSize),
m_YaxisEnd);
// draw the middle value
if (w > (3 * hf) && (m_plotInstances.attribute(m_yIndex).isNumeric())) {
double mid = m_minY + ((m_maxY - m_minY) / 2.0);
whole = (int) Math.abs(mid);
decimal = Math.abs(mid) - whole;
nondecimal = (whole > 0) ? (int) (Math.log(whole) / Math.log(10)) : 1;
precisionYmid =
(decimal > 0) ? (int) Math.abs(((Math.log(Math.abs(mid)) / Math
.log(10)))) + 2 : 1;
if (precisionYmid > VisualizeUtils.MAX_PRECISION) {
precisionYmid = 1;
}
String maxString =
Utils.doubleToString(mid, nondecimal + 1 + precisionYmid,
precisionYmid);
int sw = m_labelMetrics.stringWidth(maxString);
double mx = m_YaxisStart + ((m_YaxisEnd - m_YaxisStart) / 2.0);
gx.drawString(maxString, m_XaxisStart - sw - m_tickSize - 1,
(int) (mx + ((hf) / 2.0)));
gx.drawLine(m_XaxisStart - m_tickSize, (int) mx, m_XaxisStart,
(int) mx);
}
}
} else {
int numValues = m_plotInstances.attribute(m_yIndex).numValues();
int div = ((numValues % 2) == 0) ? (numValues / 2) : (numValues / 2 + 1);
int maxYStringHeight = (m_YaxisEnd - m_XaxisStart) / div;
int sw = m_labelMetrics.stringWidth("M");
for (int i = 0; i < numValues; i++) {
// can we at least print 2 characters
if (maxYStringHeight >= (2 * hf)) {
String val = m_plotInstances.attribute(m_yIndex).value(i);
int numPrint =
((maxYStringHeight / hf) > val.length()) ? val.length()
: (maxYStringHeight / hf);
for (int j = 0; j < numPrint; j++) {
String ll = val.substring(j, j + 1);
if (val.charAt(j) == '_' || val.charAt(j) == '-') {
ll = "|";
}
if (i == 0) {
gx.drawString(ll, m_XaxisStart - sw - m_tickSize - 1,
(int) convertToPanelY(i) - ((numPrint - 1) * hf) + (j * hf)
+ (hf / 2));
} else if (i == (numValues - 1)) {
if ((i % 2) == 0) {
gx.drawString(ll, m_XaxisStart - sw - m_tickSize - 1,
(int) convertToPanelY(i) + (j * hf) + (hf / 2));
} else {
gx.drawString(ll, m_XaxisStart - (2 * sw) - m_tickSize - 1,
(int) convertToPanelY(i) + (j * hf) + (hf / 2));
}
} else {
if ((i % 2) == 0) {
gx.drawString(ll, m_XaxisStart - sw - m_tickSize - 1,
(int) convertToPanelY(i) - (((numPrint - 1) * hf) / 2)
+ (j * hf) + (hf / 2));
} else {
gx.drawString(ll, m_XaxisStart - (2 * sw) - m_tickSize - 1,
(int) convertToPanelY(i) - (((numPrint - 1) * hf) / 2)
+ (j * hf) + (hf / 2));
}
}
}
}
gx.drawLine(m_XaxisStart - m_tickSize, (int) convertToPanelY(i),
m_XaxisStart, (int) convertToPanelY(i));
}
}
gx.drawLine(m_XaxisStart, m_YaxisStart, m_XaxisStart, m_YaxisEnd);
gx.drawLine(m_XaxisStart, m_YaxisEnd, m_XaxisEnd, m_YaxisEnd);
if (m_XaxisStart != mxs || m_XaxisEnd != mxe || m_YaxisStart != mys
|| m_YaxisEnd != mye) {
m_plotResize = true;
}
}
/**
* Add more colours to the colour map
*/
private void extendColourMap(int highest) {
// System.err.println("Extending colour map");
for (int i = m_colorList.size(); i < highest; i++) {
Color pc = m_DefaultColors[i % 10];
int ija = i / 10;
ija *= 2;
for (int j = 0; j < ija; j++) {
pc = pc.brighter();
}
m_colorList.add(pc);
}
}
/**
* Renders this component
*
* @param gx the graphics context
*/
@Override
public void paintComponent(Graphics gx) {
super.paintComponent(gx);
if (m_plotInstances != null && m_plotInstances.numInstances() > 0
&& m_plotInstances.numAttributes() > 0) {
if (m_plotCompanion != null) {
m_plotCompanion.prePlot(gx);
}
m_JRand = new Random(m_JitterVal);
paintAxis(gx);
if (m_axisChanged || m_plotResize) {
int x_range = m_XaxisEnd - m_XaxisStart;
int y_range = m_YaxisEnd - m_YaxisStart;
if (x_range < 10) {
x_range = 10;
}
if (y_range < 10) {
y_range = 10;
}
m_drawnPoints = new int[x_range + 1][y_range + 1];
fillLookup();
m_plotResize = false;
m_axisChanged = false;
}
paintData(gx);
}
}
protected static Color checkAgainstBackground(Color c, Color background) {
if (background == null) {
return c;
}
if (c.equals(background)) {
int red = c.getRed();
int blue = c.getBlue();
int green = c.getGreen();
red += (red < 128) ? (255 - red) / 2 : -(red / 2);
blue += (blue < 128) ? (blue - red) / 2 : -(blue / 2);
green += (green < 128) ? (255 - green) / 2 : -(green / 2);
c = new Color(red, green, blue);
}
return c;
}
/**
* Main method for testing this class
*
* @param args arguments
*/
public static void main(String[] args) {
try {
if (args.length < 1) {
System.err.println("Usage : weka.gui.visualize.Plot2D "
+ " [ ...]");
System.exit(1);
}
final javax.swing.JFrame jf =
new javax.swing.JFrame("Weka Explorer: Visualize");
jf.setSize(500, 400);
jf.getContentPane().setLayout(new BorderLayout());
final Plot2D p2 = new Plot2D();
jf.getContentPane().add(p2, BorderLayout.CENTER);
jf.addWindowListener(new java.awt.event.WindowAdapter() {
@Override
public void windowClosing(java.awt.event.WindowEvent e) {
jf.dispose();
System.exit(0);
}
});
p2.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {
if ((e.getModifiers() & InputEvent.BUTTON1_MASK) == InputEvent.BUTTON1_MASK) {
p2.searchPoints(e.getX(), e.getY(), false);
} else {
p2.searchPoints(e.getX(), e.getY(), true);
}
}
});
jf.setVisible(true);
if (args.length >= 1) {
for (int j = 0; j < args.length; j++) {
System.err.println("Loading instances from " + args[j]);
java.io.Reader r =
new java.io.BufferedReader(new java.io.FileReader(args[j]));
Instances i = new Instances(r);
i.setClassIndex(i.numAttributes() - 1);
PlotData2D pd1 = new PlotData2D(i);
if (j == 0) {
pd1.setPlotName("Master plot");
p2.setMasterPlot(pd1);
p2.setXindex(2);
p2.setYindex(3);
p2.setCindex(i.classIndex());
} else {
pd1.setPlotName("Plot " + (j + 1));
pd1.m_useCustomColour = true;
pd1.m_customColour = (j % 2 == 0) ? Color.red : Color.blue;
p2.addPlot(pd1);
}
}
}
} catch (Exception ex) {
ex.printStackTrace();
System.err.println(ex.getMessage());
}
}
}