Prefuse é mais uma biblioteca para visualização de gráficos em Java.
A classe utilizada. Atenção para a utilização do uso do arquivo graph.xml e também da API prefuse.
import java.awt.Color;
import javax.swing.JFrame;
import prefuse.Constants;
import prefuse.Display;
import prefuse.Visualization;
import prefuse.action.ActionList;
import prefuse.action.RepaintAction;
import prefuse.action.assignment.ColorAction;
import prefuse.action.assignment.DataColorAction;
import prefuse.action.layout.graph.BalloonTreeLayout;
import prefuse.action.layout.graph.ForceDirectedLayout;
import prefuse.activity.Activity;
import prefuse.controls.DragControl;
import prefuse.controls.PanControl;
import prefuse.controls.ZoomControl;
import prefuse.data.Graph;
import prefuse.data.io.DataIOException;
import prefuse.data.io.GraphMLReader;
import prefuse.render.DefaultRendererFactory;
import prefuse.render.LabelRenderer;
import prefuse.util.ColorLib;
import prefuse.visual.VisualItem;
public class ExampleI {
public static void main(String[] argv) {
// -- 1. load the data ------------------------------------------------
// load the socialnet.xml file. it is assumed that the file can be
// found at the root of the java classpath
Graph graph = null;
try {
graph = new GraphMLReader().readGraph("data/graph.xml");
// graph = new GraphMLReader().readGraph("data/socialnet.xml");
} catch (DataIOException e) {
e.printStackTrace();
System.err.println("Error loading graph. Exiting...");
System.exit(1);
}
// -- 2. the visualization --------------------------------------------
// add the graph to the visualization as the data group "graph"
// nodes and edges are accessible as "graph.nodes" and "graph.edges"
Visualization vis = new Visualization();
vis.add("graph", graph);
vis.setInteractive("graph.edges", null, false);
// -- 3. the renderers and renderer factory ---------------------------
// draw the "name" label for NodeItems
LabelRenderer r = new LabelRenderer("name");
r.setRoundedCorner(8, 8); // round the corners
// create a new default renderer factory
// return our name label renderer as the default for all non-EdgeItems
// includes straight line edges for EdgeItems by default
vis.setRendererFactory(new DefaultRendererFactory(r));
// -- 4. the processing actions ---------------------------------------
// create our nominal color palette
// pink for females, baby blue for males
int[] palette = new int[] { ColorLib.rgb(255, 180, 180), ColorLib.rgb(190, 190, 255) };
// map nominal data values to colors using our provided palette
DataColorAction fill = new DataColorAction("graph.nodes", "type", Constants.NOMINAL, VisualItem.FILLCOLOR,
palette);
// use black for node text
ColorAction text = new ColorAction("graph.nodes", VisualItem.TEXTCOLOR, ColorLib.gray(0));
// use light grey for edges
ColorAction edges = new ColorAction("graph.edges", VisualItem.STROKECOLOR, ColorLib.gray(200));
// create an action list containing all color assignments
ActionList color = new ActionList();
color.add(fill);
color.add(text);
color.add(edges);
// create an action list with an animated layout
ActionList layout = new ActionList(Activity.INFINITY);
// ActionList layout = new ActionList(Activity.DEFAULT_STEP_TIME);
layout.add(new ForceDirectedLayout("graph"));
layout.add(new RepaintAction());
// add the actions to the visualization
vis.putAction("color", color);
vis.putAction("layout", layout);
BalloonTreeLayout balloonlayout = new BalloonTreeLayout("graph", 300);
layout.add(balloonlayout);
// -- 5. the display and interactive controls -------------------------
Display d = new Display(vis);
d.setSize(720, 500); // set display size
d.pan(350, 350); // Configura o centro do Display.
// d.setForeground(Color.GRAY);
// d.setBackground(Color.WHITE);
// Cor cinza da aplicação Java
d.setBackground(new Color(238, 238, 238));
// drag individual items around
d.addControlListener(new DragControl());
// pan with left-click drag on background
d.addControlListener(new PanControl());
// zoom with right-click drag
d.addControlListener(new ZoomControl());
// d.addControlListener(new WheelZoomControl());
// d.addControlListener(new ZoomToFitControl());
// d.addControlListener(new NeighborHighlightControl());
// assign the colors
vis.run("color");
// start up the animated layout
vis.run("layout");
// -- 6. launch the visualization -------------------------------------
// create a new window to hold the visualization
JFrame frame = new JFrame("Prefuse - Dashboard BSJUG Views (2012 - 09/07/2021)");
// ensure application exits when window is closed
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(d);
frame.pack(); // layout components in window
frame.setVisible(true); // show the window
}
}
Quem puder melhorar esse pequeno exemplo por favor fiquem a vontade e postem aqui.
Dashboard do blog de 2012 até 09-07-2021 das visualizações e países e línguas. Usando JTable para visualização dos dados. Uso de imagens (ImageIcon) na tabela.
Para o código fonte não ficar muito grande aqui nessa postagem resolvi reduzir ele um pouco mesmo assim ainda ficou grande, mas tem como estudar e entender.
A casse DashboardBSJUG.java é a classe principal, mas perceba também o uso da classe BrowserOpener para abri o link da aplicação no browser, no seu navegador padrão. Para isso utilizei um pequeno arquivo html que chamei de BSJUG.html que esta declarado em um JEditorPane. Atenção para a classe ToolTipHeader.java que vai auxiliar a classe principal.
import java.awt.Color;
import java.awt.Cursor;
import java.awt.Desktop;
import java.awt.EventQueue;
import java.awt.Font;
import java.awt.Toolkit;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.IOException;
import java.net.URISyntaxException;
import java.net.URL;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.border.EmptyBorder;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import javax.swing.event.HyperlinkEvent;
import javax.swing.event.HyperlinkListener;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableModel;
import javax.swing.table.TableRowSorter;
import javax.swing.text.AttributeSet;
import javax.swing.text.Element;
import javax.swing.text.html.HTML;
import javax.swing.JTable;
import javax.swing.ListSelectionModel;
import javax.swing.RowFilter;
import javax.swing.RowSorter;
import javax.swing.SwingConstants;
import javax.swing.ToolTipManager;
import javax.swing.JEditorPane;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.ImageIcon;
import javax.swing.JTextField;
public class DashboardBSJUG extends JFrame {
private static final long serialVersionUID = 1L;
private JPanel contentPane;
private JEditorPane editorPane;
private static JTable table;
private static JTextField filterText;
private JLabel lblNewLabel;
//DefaultTableModel model;
private TableModel model;
DefaultTableCellRenderer esquerda = new DefaultTableCellRenderer();
DefaultTableCellRenderer centralizado = new DefaultTableCellRenderer();
DefaultTableCellRenderer direita = new DefaultTableCellRenderer();
public static void main(String[] args) {
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
DashboardBSJUG frame = new DashboardBSJUG();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
public void showPage(String page) {
URL pageURL = getClass().getResource(page);
try {
editorPane.setPage(pageURL);
} catch (IOException ioe) {
Toolkit.getDefaultToolkit().beep();
JOptionPane.showMessageDialog(null, "ERRO while loading help page!", "Dashboard BSJUG",
JOptionPane.ERROR_MESSAGE);
System.out.println("ERRO while loading help page!");
}
}
public DashboardBSJUG() {
setTitle("Dashboard BSJUG – Baixada Santista Java Users Group Views (2012 - 09/07/2021)");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 900, 600);
setResizable(false);
setLocationRelativeTo(null);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
contentPane.setLayout(null);
editorPane = new JEditorPane();
editorPane.setBounds(302, 77, 295, 166);
ToolTipManager.sharedInstance().registerComponent(editorPane);
editorPane.setEditable(false);
editorPane.setContentType("text/html");
editorPane.addHyperlinkListener(new BrowserOpener(this));
editorPane.addHyperlinkListener(new MyHyperlinkListener(this));
showPage("BSJUG.html");
// A cor cinza da aplicação Java
editorPane.setBackground(new Color(238, 238, 238));
contentPane.add(editorPane);
JLabel lblTitle = new JLabel("Dashboard BSJUG Views");
lblTitle.setToolTipText("Dashboard BSJUG Views");
lblTitle.setFont(new Font("Tahoma", Font.BOLD, 28));
lblTitle.setHorizontalAlignment(SwingConstants.CENTER);
lblTitle.setBounds(10, 11, 874, 46);
contentPane.add(lblTitle);
String[] toolTips = {"Índice", "País", "Língua", "Código Língua / País", "País / Visualizações", "Bandeira"};
String[] columns = { "Index", "Country", "Language", "Locale", "Country / Views", "Flag" };
Object[][] rows = {
{ "1º", "Brazil", "Portuguese", "pt-BR", "Brasil, 90379", new ImageIcon(DashboardBSJUG.class.getResource("/flagsII/Brazil.png")) },
{ "2º", "United States", "English", "en-US", "Estados Unidos, 12198", new ImageIcon(DashboardBSJUG.class.getResource("/flagsII/United States.png")) },
{ "3º", "Portugal", "Portuguese", "pt-PT", "Portugal, 3277", new ImageIcon(DashboardBSJUG.class.getResource("/flagsII/Portugal.png")) },
{ "4º", "Angola", "Portuguese", "pt-AO", "Angola, 1007", new ImageIcon(DashboardBSJUG.class.getResource("/flagsII/Angola.png")) },
{ "5º", "Hong Kong SAR, China", "Chinese", "zh-HK", "Hong Kong, RAE Da China, 775", new ImageIcon(DashboardBSJUG.class.getResource("/flagsII/Hong Kong.png")) },
{ "148º", "Burundi", "French", "fr-BI", "Burundi, 1", new ImageIcon(DashboardBSJUG.class.getResource("/flagsII/Burundi.png")) } };
//Create a table with a sorter.
model = new DefaultTableModel(rows, columns) {
private static final long serialVersionUID = 1L;
public Class getColumnClass(int column) {
Class returnValue;
if ((column >= 0) && (column < getColumnCount())) {
returnValue = getValueAt(0, column).getClass();
} else {
returnValue = Object.class;
}
return returnValue;
}
};
table = new JTable(model);
TableRowSorter sorter = new TableRowSorter(model);
table.setRowSorter(sorter);
//Tabela sem deixar editar
//table.setEnabled(false);
//table.setEnabled(false);
//Tabela deixa selecionar mas não deixar editar
table.setDefaultEditor(Object.class, null);
// table.setBounds(236, 306, 622, 244);
// Move as colunas
// table.getTableHeader().setReorderingAllowed(false);
// Cor cinza da aplicação Java
table.setBackground(new Color(238, 238, 238));
table.setCursor(new Cursor(Cursor.HAND_CURSOR));
ToolTipHeader tooltipHeader = new ToolTipHeader(table.getColumnModel());
tooltipHeader.setToolTipStrings(toolTips);
tooltipHeader.setCursor(new Cursor(Cursor.HAND_CURSOR));
table.setTableHeader(tooltipHeader);
// JTable Header Sort Data
table.setAutoCreateRowSorter(true);
//Largura das colunas 0, 4 e 5
table.getColumnModel().getColumn(0).setPreferredWidth(10);
table.getColumnModel().getColumn(3).setPreferredWidth(10);
//table.getColumnModel().getColumn(4).setPreferredWidth(10);
table.getColumnModel().getColumn(5).setPreferredWidth(10);
esquerda.setHorizontalAlignment(2);
centralizado.setHorizontalAlignment(0);
direita.setHorizontalAlignment(4);
table.getColumnModel().getColumn(3).setCellRenderer(centralizado);
//table.getColumnModel().getColumn(4).setCellRenderer(centralizado);
//largura das linhas da tabela
table.setRowHeight(50);
//Hide Column in the JTable
//table.removeColumn(table.getColumnModel().getColumn(4));
table.setFillsViewportHeight(true);
// For the purposes of this example, better to have a single
// selection.
table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
table.getSelectionModel().addListSelectionListener(new ListSelectionListener() {
public void valueChanged(ListSelectionEvent event) {
int viewRow = DashboardBSJUG.table.getSelectedRow();
if (viewRow < 0) {
System.out.println(" ");
} else {
//int modelRow = Teste.table.convertRowIndexToModel(viewRow);
String subtitleName = (String) DashboardBSJUG.table.getValueAt(DashboardBSJUG.table.getSelectedRow(), 1);
System.out.println(String.valueOf(subtitleName));
}
}
});
JScrollPane scrollPane = new JScrollPane();
scrollPane.setBounds(30, 254, 839, 263);
contentPane.add(scrollPane);
scrollPane.setViewportView(table);
filterText = new JTextField();
filterText.setBounds(574, 528, 295, 20);
//Whenever filterText changes, invoke newFilter.
filterText.addKeyListener(new KeyAdapter() {
@Override
public void keyPressed(KeyEvent e) {
RowSorter rs = table.getRowSorter();
if (rs == null) {
table.setAutoCreateRowSorter(true);
rs = table.getRowSorter();
}
TableRowSorter rowSorter =
(rs instanceof TableRowSorter) ? (TableRowSorter) rs : null;
if (rowSorter == null) {
throw new RuntimeException("Cannot find appropriate rowSorter: " + rs);
}
filterText.getDocument().addDocumentListener(new DocumentListener() {
@Override
public void insertUpdate(DocumentEvent e) {
update(e);
}
@Override
public void removeUpdate(DocumentEvent e) {
update(e);
}
@Override
public void changedUpdate(DocumentEvent e) {
update(e);
}
private void update(DocumentEvent e) {
String text = filterText.getText();
if (text.trim().length() == 0) {
rowSorter.setRowFilter(null);
} else {
//O acento circonflex faz com que o regex reconheça acentuação
rowSorter.setRowFilter(RowFilter.regexFilter("(?i)^" + text));
}
lblNewLabel.setText("Result(s): " + rowSorter.getViewRowCount() + " found.");
}
});
}
});
contentPane.add(filterText);
JLabel lblPesquisa = new JLabel("Search:");
lblPesquisa.setToolTipText("Pesquisa:");
lblPesquisa.setBounds(505, 534, 59, 14);
contentPane.add(lblPesquisa);
lblNewLabel = new JLabel("");
lblNewLabel.setBounds(30, 531, 465, 17);
contentPane.add(lblNewLabel);
// contentPane.add(table);
}//******************************************Fim do construtor
class WindowEventHandler extends WindowAdapter {
DashboardBSJUG guia;
WindowEventHandler(DashboardBSJUG guia) {
this.guia = guia;
}
public void windowClosing(WindowEvent evt) {
DashboardBSJUG.this.dispose();
}
}
//************************************************************
class MyHyperlinkListener implements HyperlinkListener {
private String tooltip;
DashboardBSJUG guia;
MyHyperlinkListener(DashboardBSJUG guia) {
this.guia = guia;
}
public void hyperlinkUpdate(HyperlinkEvent e) {
JEditorPane editor = (JEditorPane) e.getSource();
if (e.getEventType() != HyperlinkEvent.EventType.ACTIVATED)
if (e.getEventType() == HyperlinkEvent.EventType.ENTERED) {
tooltip = editor.getToolTipText();
Element elem = e.getSourceElement();
if (elem != null) {
AttributeSet attr = elem.getAttributes();
AttributeSet a = (AttributeSet) attr.getAttribute(HTML.Tag.A);
if (a != null)
editor.setToolTipText((String) a.getAttribute(HTML.Attribute.TITLE));
}
} else if (e.getEventType() == HyperlinkEvent.EventType.EXITED) {
editor.setToolTipText(this.tooltip);
}
}
}
//*******************************************************************
class BrowserOpener implements HyperlinkListener {
DashboardBSJUG guia;
BrowserOpener(DashboardBSJUG guia) {
this.guia = guia;
}
public void hyperlinkUpdate(HyperlinkEvent event) {
if (event.getEventType() == HyperlinkEvent.EventType.ACTIVATED)
try {
Desktop.getDesktop().browse(event.getURL().toURI());
} catch (IOException e) {
e.printStackTrace();
} catch (URISyntaxException e) {
e.printStackTrace();
}
}
}
}
Essa aplicação demonstra a utilização dessa ferramentas Java para elaboração de um Dashboard ou para muitas outras coisas dependendo da sua necessidade.
Um outro exemplo utilizando a API prefuse bem interessante. Essa aplicação se resume em ler dois arquivos de .txt um chamado zipcode.txt e o outro state.txt ambos localizado dentro do Classpath do projeto. Mais informações sobre a biblioteca aqui: https://github.com/prefuse/Prefuse
A tela é bem simples. Existe um campo de pesquisar no qual você vai digital um zipcode (que equivalente para nós aqui no Brasil como o CEP).
A classe ZipDecode.java
import java.awt.Font;
import java.awt.Shape;
import java.awt.event.ComponentAdapter;
import java.awt.event.ComponentEvent;
import javax.swing.BorderFactory;
import javax.swing.JFrame;
import prefuse.Constants;
import prefuse.Display;
import prefuse.Visualization;
import prefuse.action.Action;
import prefuse.action.ActionList;
import prefuse.action.RepaintAction;
import prefuse.action.animate.ColorAnimator;
import prefuse.action.animate.LocationAnimator;
import prefuse.action.assignment.ColorAction;
import prefuse.action.layout.AxisLayout;
import prefuse.activity.Activity;
import prefuse.activity.ActivityAdapter;
import prefuse.activity.SlowInSlowOutPacer;
import prefuse.data.Schema;
import prefuse.data.Table;
import prefuse.data.Tuple;
import prefuse.data.event.TupleSetListener;
import prefuse.data.expression.FunctionExpression;
import prefuse.data.expression.FunctionTable;
import prefuse.data.expression.Predicate;
import prefuse.data.expression.parser.ExpressionParser;
import prefuse.data.io.DataIOException;
import prefuse.data.io.DelimitedTextTableReader;
import prefuse.data.query.SearchQueryBinding;
import prefuse.data.search.SearchTupleSet;
import prefuse.data.tuple.TupleSet;
import prefuse.render.DefaultRendererFactory;
import prefuse.render.ShapeRenderer;
import prefuse.render.LabelRenderer;
import prefuse.util.ColorLib;
import prefuse.util.FontLib;
import prefuse.util.PrefuseLib;
import prefuse.util.ui.JSearchPanel;
import prefuse.visual.VisualItem;
import prefuse.visual.VisualTable;
/**
* Re-implementation of Ben Fry's Zipdecode. Check out the original at
* <a href="http://acg.media.mit.edu/people/fry/zipdecode/">
* http://acg.media.mit.edu/people/fry/zipdecode/</a>.
*
* This demo showcases creating new functions in the prefuse expression
* language, creating derived columns, and provides an example of using a
* dedicated focus set of items to support more efficient data handling.
*
* @author <a href="http://jheer.org">jeffrey heer</a>
*/
// https://github.com/prefuse/Prefuse
public class ZipDecode extends Display implements Constants {
private static final long serialVersionUID = 1L;
public static final String ZIPCODES = "/zipcode.txt";
public static final String STATES = "/state.txt";
// data groups
private static final String DATA = "data";
private static final String LABELS = "labels";
private static final String FOCUS = Visualization.FOCUS_ITEMS;
public static class StateLookupFunction extends FunctionExpression {
private static Table s_states;
static {
try {
s_states = new DelimitedTextTableReader().readTable(STATES);
} catch (Exception e) {
e.printStackTrace();
}
}
public StateLookupFunction() {
super(1);
}
public String getName() {
return "STATE";
}
public Class getType(Schema s) {
return String.class;
}
public Object get(Tuple t) {
int code = s_states.index("code").get(param(0).getInt(t));
return s_states.getString(code, "alpha");
}
}
// add state function to the FunctionTable
static {
FunctionTable.addFunction("STATE", StateLookupFunction.class);
}
public ZipDecode(final Table t) {
super(new Visualization());
// this predicate makes sure only the continental states are included
Predicate filter = (Predicate) ExpressionParser.parse("state >= 1 && state getWidth() / 2 ? RIGHT : LEFT);
// now return shape as usual
return super.getShape(item);
}
});
m_vis.setRendererFactory(rf);
// -- actions ---------------------------------------------------------
ActionList layout = new ActionList();
layout.add(new AxisLayout(DATA, "lat", Y_AXIS));
layout.add(new AxisLayout(DATA, "lon", X_AXIS));
m_vis.putAction("layout", layout);
// the update list updates the colors of data points and sets the visual
// properties for any labels. Color updating is limited only to the
// current focus items, ensuring faster performance.
final Action update = new ZipColorAction(FOCUS);
m_vis.putAction("update", update);
// animate a change in color in the interface. this animation is quite
// short, only 200ms, so that it does not impede with interaction.
// color animation of data points looks only at the focus items,
// ensuring faster performance.
ActionList animate = new ActionList(200);
animate.add(new ColorAnimator(FOCUS, VisualItem.FILLCOLOR));
animate.add(new ColorAnimator(LABELS, VisualItem.TEXTCOLOR));
animate.add(new RepaintAction());
animate.addActivityListener(new ActivityAdapter() {
public void activityCancelled(Activity a) {
// if animation is canceled, set colors to final state
update.run(1.0);
}
});
m_vis.putAction("animate", animate);
// update items after a resize of the display, animating them to their
// new locations. this animates all data points, so is noticeably slow.
ActionList resize = new ActionList(1500);
resize.setPacingFunction(new SlowInSlowOutPacer());
resize.add(new LocationAnimator(DATA));
resize.add(new LocationAnimator(LABELS));
resize.add(new RepaintAction());
m_vis.putAction("resize", resize);
// -- display ---------------------------------------------------------
setSize(720, 360);
setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10));
setBackground(ColorLib.getGrayscale(50));
setFocusable(false);
// -- search ----------------------------------------------------------
// zipcode text search is performed using a prefix based search,
// provided by a search dynamic query. to make this application run
// more efficiently, we optimize data handling by taking all search
// results (both added and removed) and shuttling them into a
// focus set. we work with this reduced set for updating and
// animating color changes in the action definitions above.
// create a final reference to the focus set, so that the following
// search listener can access it.
final TupleSet focus = m_vis.getFocusGroup(FOCUS);
// create the search query binding
SearchQueryBinding searchQ = new SearchQueryBinding(vt, "zipstr");
final SearchTupleSet search = searchQ.getSearchSet();
// create the listener that collects search results into a focus set
search.addTupleSetListener(new TupleSetListener() {
public void tupleSetChanged(TupleSet t, Tuple[] add, Tuple[] rem) {
m_vis.cancel("animate");
// invalidate changed tuples, add them all to the focus set
focus.clear();
for (int i = 0; i < add.length; ++i) {
((VisualItem) add[i]).setValidated(false);
focus.addTuple(add[i]);
}
for (int i = 0; i "); // the search box label
searcher.setShowCancel(false); // don't show the cancel query button
searcher.setShowBorder(false); // don't show the search box border
searcher.setFont(FontLib.getFont("Georgia", Font.PLAIN, 22));
searcher.setBackground(ColorLib.getGrayscale(50));
searcher.setForeground(ColorLib.getColor(100, 100, 75));
add(searcher); // add the search box as a sub-component of the display
searcher.setBounds(10, getHeight() - 40, 120, 30);
addComponentListener(new ComponentAdapter() {
public void componentResized(ComponentEvent e) {
m_vis.run("layout");
m_vis.run("update");
m_vis.run("resize");
searcher.setBounds(10, getHeight() - 40, 120, 30);
invalidate();
}
});
// -- launch ----------------------------------------------------------
m_vis.run("layout");
m_vis.run("animate");
}
private static Schema getDataSchema() {
Schema s = PrefuseLib.getVisualItemSchema();
s.setDefault(VisualItem.INTERACTIVE, false);
s.setDefault(VisualItem.FILLCOLOR, ColorLib.rgb(100, 100, 75));
return s;
}
private static Schema getLabelSchema() {
Schema s = PrefuseLib.getMinimalVisualSchema();
s.setDefault(VisualItem.INTERACTIVE, false);
// default font is 16 point Georgia
s.addInterpolatedColumn(VisualItem.FONT, Font.class, FontLib.getFont("Georgia", 16));
// default fill color should be invisible
s.addInterpolatedColumn(VisualItem.FILLCOLOR, int.class);
s.setInterpolatedDefault(VisualItem.FILLCOLOR, 0);
s.addInterpolatedColumn(VisualItem.TEXTCOLOR, int.class);
// default text color is white
s.setInterpolatedDefault(VisualItem.TEXTCOLOR, ColorLib.gray(255));
// default start text color is fully transparent
s.setDefault(VisualItem.STARTTEXTCOLOR, ColorLib.gray(255, 0));
return s;
}
// ------------------------------------------------------------------------
public static void main(String[] args) {
String datafile = ZIPCODES;
if (args.length > 0)
datafile = args[0];
try {
JFrame frame = demo(datafile);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
System.exit(1);
}
}
public static JFrame demo() {
try {
return demo(ZIPCODES);
} catch (Exception e) {
return null;
}
}
public static JFrame demo(String table) throws DataIOException {
DelimitedTextTableReader tr = new DelimitedTextTableReader();
Table t = tr.readTable(table);
ZipDecode zd = new ZipDecode(t);
JFrame frame = new JFrame("Prefuse - Zipdecode");
frame.getContentPane().add(zd);
frame.pack();
return frame;
}
public static class ZipColorAction extends ColorAction {
public ZipColorAction(String group) {
super(group, VisualItem.FILLCOLOR);
}
public int getColor(VisualItem item) {
if (item.isInGroup(Visualization.SEARCH_ITEMS)) {
return ColorLib.gray(255);
} else {
return ColorLib.rgb(100, 100, 75);
}
}
}
} // end of class ZipDecode
Uso da API prefuse (Java) para demonstração de resultados, em forma de gráficos. Infelizmente não obtive o resultado desejado devido a API ter sido meio que abandonada pelos desenvolvedores deixando pouco material como exemplo e estudo. Tentei entrar em contado com um dos desenvolvedores, mas não obtive ajuda. Então aqui fica o registro do que fiz e conseguir.
Quanto maio o volume de dados mais emaranhado ficará o gráfico em um modo geral. Olhando a imagem acima você verá o emaranhado de dados de visualizações do blog entre os anos de 2012 ano em que foi criado e 2021 o ano vigente em curso. Você pode arrastar com o mouse os dados no gráfico e veja também que existe um campo de pesquisa na parte inferior direita onde você pode pesquisar pelo o nome dos países que ganha um destaque em vermelho. Exemplo: Brazil.
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.event.MouseEvent;
import java.util.Iterator;
import javax.swing.BorderFactory;
import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingConstants;
import prefuse.Constants;
import prefuse.Display;
import prefuse.Visualization;
import prefuse.action.ActionList;
import prefuse.action.GroupAction;
import prefuse.action.ItemAction;
import prefuse.action.RepaintAction;
import prefuse.action.animate.ColorAnimator;
import prefuse.action.animate.PolarLocationAnimator;
import prefuse.action.animate.QualityControlAnimator;
import prefuse.action.animate.VisibilityAnimator;
import prefuse.action.assignment.ColorAction;
import prefuse.action.assignment.FontAction;
import prefuse.action.layout.CollapsedSubtreeLayout;
import prefuse.action.layout.graph.RadialTreeLayout;
import prefuse.activity.SlowInSlowOutPacer;
import prefuse.controls.ControlAdapter;
import prefuse.controls.DragControl;
import prefuse.controls.FocusControl;
import prefuse.controls.HoverActionControl;
import prefuse.controls.PanControl;
import prefuse.controls.ZoomControl;
import prefuse.controls.ZoomToFitControl;
import prefuse.data.Graph;
import prefuse.data.Node;
import prefuse.data.Table;
import prefuse.data.Tuple;
import prefuse.data.event.TupleSetListener;
import prefuse.data.io.GraphMLReader;
import prefuse.data.query.SearchQueryBinding;
import prefuse.data.search.PrefixSearchTupleSet;
import prefuse.data.search.SearchTupleSet;
import prefuse.data.tuple.DefaultTupleSet;
import prefuse.data.tuple.TupleSet;
import prefuse.render.AbstractShapeRenderer;
import prefuse.render.DefaultRendererFactory;
import prefuse.render.EdgeRenderer;
import prefuse.render.LabelRenderer;
import prefuse.util.ColorLib;
import prefuse.util.FontLib;
import prefuse.util.ui.JFastLabel;
import prefuse.util.ui.JSearchPanel;
import prefuse.util.ui.UILib;
import prefuse.visual.VisualItem;
import prefuse.visual.expression.InGroupPredicate;
import prefuse.visual.sort.TreeDepthItemSorter;
/**
* Demonstration of a node-link tree viewer
*
* @version 1.0
* @author <a href="http://jheer.org">jeffrey heer</a>
*/
//http://www.sfu.ca/siatclass/IAT355/Spring2012Old/Resources/prefuseDist/demos/prefuse/demos/RadialGraphView.java
public class RadialGraphView extends Display {
private static final long serialVersionUID = 1L;
public static final String DATA_FILE = "data/graph.xml";
private static final String tree = "tree";
private static final String treeNodes = "tree.nodes";
private static final String treeEdges = "tree.edges";
private static final String linear = "linear";
private LabelRenderer m_nodeRenderer;
private EdgeRenderer m_edgeRenderer;
private String m_label = "label";
public RadialGraphView(Graph g, String label) {
super(new Visualization());
m_label = label;
// -- set up visualization --
m_vis.add(tree, g);
m_vis.setInteractive(treeEdges, null, false);
// -- set up renderers --
m_nodeRenderer = new LabelRenderer(m_label);
m_nodeRenderer.setRenderType(AbstractShapeRenderer.RENDER_TYPE_FILL);
m_nodeRenderer.setHorizontalAlignment(Constants.CENTER);
m_nodeRenderer.setRoundedCorner(8, 8);
m_edgeRenderer = new EdgeRenderer();
DefaultRendererFactory rf = new DefaultRendererFactory(m_nodeRenderer);
rf.add(new InGroupPredicate(treeEdges), m_edgeRenderer);
m_vis.setRendererFactory(rf);
// -- set up processing actions --
// colors
ItemAction nodeColor = new NodeColorAction(treeNodes);
ItemAction textColor = new TextColorAction(treeNodes);
m_vis.putAction("textColor", textColor);
ItemAction edgeColor = new ColorAction(treeEdges, VisualItem.STROKECOLOR, ColorLib.rgb(200, 200, 200));
FontAction fonts = new FontAction(treeNodes, FontLib.getFont("Tahoma", 10));
fonts.add("ingroup('_focus_')", FontLib.getFont("Tahoma", 11));
// recolor
ActionList recolor = new ActionList();
recolor.add(nodeColor);
recolor.add(textColor);
m_vis.putAction("recolor", recolor);
// repaint
ActionList repaint = new ActionList();
repaint.add(recolor);
repaint.add(new RepaintAction());
m_vis.putAction("repaint", repaint);
// animate paint change
ActionList animatePaint = new ActionList(400);
animatePaint.add(new ColorAnimator(treeNodes));
animatePaint.add(new RepaintAction());
m_vis.putAction("animatePaint", animatePaint);
// create the tree layout action
RadialTreeLayout treeLayout = new RadialTreeLayout(tree);
// treeLayout.setAngularBounds(-Math.PI/2, Math.PI);
m_vis.putAction("treeLayout", treeLayout);
CollapsedSubtreeLayout subLayout = new CollapsedSubtreeLayout(tree);
m_vis.putAction("subLayout", subLayout);
// create the filtering and layout
ActionList filter = new ActionList();
filter.add(new TreeRootAction(tree));
filter.add(fonts);
filter.add(treeLayout);
filter.add(subLayout);
filter.add(textColor);
filter.add(nodeColor);
filter.add(edgeColor);
m_vis.putAction("filter", filter);
// animated transition
ActionList animate = new ActionList(1250);
animate.setPacingFunction(new SlowInSlowOutPacer());
animate.add(new QualityControlAnimator());
animate.add(new VisibilityAnimator(tree));
animate.add(new PolarLocationAnimator(treeNodes, linear));
animate.add(new ColorAnimator(treeNodes));
animate.add(new RepaintAction());
m_vis.putAction("animate", animate);
m_vis.alwaysRunAfter("filter", "animate");
// ------------------------------------------------
// initialize the display
setSize(800, 600);
setItemSorter(new TreeDepthItemSorter());
addControlListener(new DragControl());
addControlListener(new ZoomToFitControl());
addControlListener(new ZoomControl());
addControlListener(new PanControl());
addControlListener(new FocusControl(1, "filter"));
addControlListener(new HoverActionControl("repaint"));
// ------------------------------------------------
// filter graph and perform layout
m_vis.run("filter");
// maintain a set of items that should be interpolated linearly
// this isn't absolutely necessary, but makes the animations nicer
// the PolarLocationAnimator should read this set and act accordingly
m_vis.addFocusGroup(linear, new DefaultTupleSet());
m_vis.getGroup(Visualization.FOCUS_ITEMS).addTupleSetListener(new TupleSetListener() {
public void tupleSetChanged(TupleSet t, Tuple[] add, Tuple[] rem) {
TupleSet linearInterp = m_vis.getGroup(linear);
if (add.length 1) {
infile = argv[0];
label = argv[1];
}
UILib.setPlatformLookAndFeel();
JFrame frame = new JFrame("Prefuse Radialgraph - Dashboard BSJUG Views (2012 - 09/07/2021)");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setContentPane(demo(infile, label));
frame.pack();
frame.setVisible(true);
}
public static JPanel demo() {
return demo(DATA_FILE, "name");
}
public static JPanel demo(String datafile, final String label) {
Graph g = null;
try {
g = new GraphMLReader().readGraph(datafile);
} catch (Exception e) {
e.printStackTrace();
System.exit(1);
}
return demo(g, label);
}
public static JPanel demo(Graph g, final String label) {
// create a new radial tree view
final RadialGraphView gview = new RadialGraphView(g, label);
Visualization vis = gview.getVisualization();
// create a search panel for the tree map
SearchQueryBinding sq = new SearchQueryBinding((Table) vis.getGroup(treeNodes), label,
(SearchTupleSet) vis.getGroup(Visualization.SEARCH_ITEMS));
JSearchPanel search = sq.createSearchPanel();
search.setShowResultCount(true);
search.setBorder(BorderFactory.createEmptyBorder(5, 5, 4, 0));
search.setFont(FontLib.getFont("Tahoma", Font.PLAIN, 11));
final JFastLabel title = new JFastLabel(" ");
title.setPreferredSize(new Dimension(350, 20));
title.setVerticalAlignment(SwingConstants.BOTTOM);
title.setBorder(BorderFactory.createEmptyBorder(3, 0, 0, 0));
title.setFont(FontLib.getFont("Tahoma", Font.PLAIN, 16));
gview.addControlListener(new ControlAdapter() {
public void itemEntered(VisualItem item, MouseEvent e) {
if (item.canGetString(label))
title.setText(item.getString(label));
}
public void itemExited(VisualItem item, MouseEvent e) {
title.setText(null);
}
});
Box box = new Box(BoxLayout.X_AXIS);
box.add(Box.createHorizontalStrut(10));
box.add(title);
box.add(Box.createHorizontalGlue());
box.add(search);
box.add(Box.createHorizontalStrut(3));
JPanel panel = new JPanel(new BorderLayout());
panel.add(gview, BorderLayout.CENTER);
panel.add(box, BorderLayout.SOUTH);
//Color BACKGROUND = Color.WHITE;
Color BACKGROUND = Color.GRAY;
Color FOREGROUND = Color.DARK_GRAY;
UILib.setColor(panel, BACKGROUND, FOREGROUND);
return panel;
}
// ------------------------------------------------------------------------
/**
* Switch the root of the tree by requesting a new spanning tree at the desired
* root
*/
public static class TreeRootAction extends GroupAction {
public TreeRootAction(String graphGroup) {
super(graphGroup);
}
public void run(double frac) {
TupleSet focus = m_vis.getGroup(Visualization.FOCUS_ITEMS);
if (focus == null || focus.getTupleCount() == 0)
return;
Graph g = (Graph) m_vis.getGroup(m_group);
Node f = null;
Iterator tuples = focus.tuples();
while (tuples.hasNext() && !g.containsTuple(f = (Node) tuples.next())) {
f = null;
}
if (f == null)
return;
g.getSpanningTree(f);
}
}
/**
* Set node fill colors
*/
public static class NodeColorAction extends ColorAction {
public NodeColorAction(String group) {
super(group, VisualItem.FILLCOLOR, ColorLib.rgba(255, 255, 255, 0));
add("_hover", ColorLib.gray(220, 230));
add("ingroup('_search_')", ColorLib.rgb(255, 190, 190));
add("ingroup('_focus_')", ColorLib.rgb(198, 229, 229));
}
} // end of inner class NodeColorAction
/**
* Set node text colors
*/
public static class TextColorAction extends ColorAction {
public TextColorAction(String group) {
super(group, VisualItem.TEXTCOLOR, ColorLib.gray(0));
add("_hover", ColorLib.rgb(255, 0, 0));
}
} // end of inner class TextColorAction
} // end of class RadialGraphView
Essa API também pode e consegue gerar outros tipos de gráficos que com um tempo posso ir postando por aqui. Esse é apenas um dos tipos de gráfico que essa API pode gerar.
// Tutorial 16: FlagQuiz java
// Quiz the user on their knowledge of flags The user must try to
// match five flags to their countries.
import java.util.*;
import java.awt.Container;
import java.awt.Cursor;
import java.awt.event.*;
import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.border.*;
//https://slidetodoc.com/1-tutorial-16-flag-quiz-application-introducing-onedimensional/
public class FlagQuiz extends JFrame {
private static final long serialVersionUID = 1L;
// array of country names
private String[] countries = { "Russia", "China", "United States", "Italy", "Australia", "South Africa", "Brazil",
"Spain" };
// boolean array tracks displayed flags
private boolean[] flagsUsed = new boolean[countries.length];
// contains the index of current flag
private int currentIndex;
// tracks the number of flags that have been displayed
private int count = 1;
int score = 0;
// JPanel and JLabel for displaying a flag image
private JPanel flagJPanel;
private JLabel flagIconJLabel;
// JLabel and JComboBox for choosing a country
private JLabel selectCountryJLabel;
private JComboBox selectCountryJComboBox;
// JTextField for giving the user feedback
private JTextField feedbackJTextField;
// JButton to submit an answer
private JButton submitJButton;
// JButton to display the next flag
private JButton nextFlagJButton;
// no-argument constructor
public FlagQuiz() {
createUserInterface();
}
// create and position GUI components; register event handlers
private void createUserInterface() {
// get content pane for attaching GUI components
Container contentPane = getContentPane();
// enable explicit positioning of GUI components
contentPane.setLayout(null);
// set up flagJPanel
flagJPanel = new JPanel();
flagJPanel.setBounds(10, 11, 100, 90);
flagJPanel.setLayout(null);
flagJPanel.setBorder(new TitledBorder("Flag"));
contentPane.add(flagJPanel);
// set up flagIconJLabel
flagIconJLabel = new JLabel();
flagIconJLabel.setBounds(10, 11, 80, 68);
flagIconJLabel.setHorizontalAlignment(JLabel.CENTER);
flagJPanel.add(flagIconJLabel);
// set up selectCountryJLabel
selectCountryJLabel = new JLabel();
selectCountryJLabel.setBounds(120, 8, 151, 21);
selectCountryJLabel.setText("Select country: ");
contentPane.add(selectCountryJLabel);
Arrays.sort(countries); // sort the array
// set up selectCountryJComboBox
selectCountryJComboBox = new JComboBox(countries);
selectCountryJComboBox.setBounds(120, 32, 151, 21);
selectCountryJComboBox.setMaximumRowCount(3);
contentPane.add(selectCountryJComboBox);
displayFlag(); // display first flag
// set up feedbackJTextField
feedbackJTextField = new JTextField();
feedbackJTextField.setBounds(120, 64, 151, 32);
feedbackJTextField.setHorizontalAlignment(JTextField.CENTER);
feedbackJTextField.setEditable(false);
contentPane.add(feedbackJTextField);
// set up submitJButton
submitJButton = new JButton();
submitJButton.setBounds(281, 26, 88, 32);
submitJButton.setText("Submit");
submitJButton.setToolTipText("Submit");
submitJButton.setCursor(new Cursor(Cursor.HAND_CURSOR));
contentPane.add(submitJButton);
submitJButton.addActionListener(new ActionListener()// anonymous inner class
{
// event handler called when submitJButton is pressed
public void actionPerformed(ActionEvent event) {
submitJButtonActionPerformed(event);
}
}// end anonymous inner class
); // end call to addActionListener
// set up nextFlagJButton
nextFlagJButton = new JButton();
nextFlagJButton.setBounds(281, 66, 88, 32);
nextFlagJButton.setText("Next Flag");
nextFlagJButton.setToolTipText("Next Flag");
nextFlagJButton.setCursor(new Cursor(Cursor.HAND_CURSOR));
nextFlagJButton.setEnabled(false);
contentPane.add(nextFlagJButton);
nextFlagJButton.addActionListener(new ActionListener() // anonymous inner class
{
// event handler called when nextFlagJButton is pressed
public void actionPerformed(ActionEvent event) {
nextFlagJButtonActionPerformed(event);
}
} // end anonymous inner class
); // end call to add. Action. Listener
// set properties of application’s window
setTitle("Flag Quiz"); // set title bar string
setSize(400, 200); // set window size
setVisible(true);
} // end method createUserInterface
// return an unused random number
private int getUniqueRandomNumber() {
Random generator = new Random();
int randomNumber;
// generate random numbers until unused flag is found
do {
randomNumber = generator.nextInt(8);
} while (flagsUsed[randomNumber] == true);
// indicate that flag has been used
flagsUsed[randomNumber] = true;
return randomNumber;
}// end method getUniqueRandomNumber
// choose a flag and display it in the JLabel
private void displayFlag() {
currentIndex = getUniqueRandomNumber();
// get an unused flag
// create the path for that flag
String country = (String) selectCountryJComboBox.getItemAt(currentIndex);
String countryPath = "images/" + country + ".png";
// set the flagIconJLabel to display the
// flagIconJLabel.setIcon( new ImageIcon( countryPath ) );
flagIconJLabel.setIcon(new ImageIcon(FlagQuiz.class.getResource(countryPath)));
}// end method displayFlag
// check the answer and update the quiz
private void submitJButtonActionPerformed(ActionEvent event) {
// determine whether the answer was correct
if (selectCountryJComboBox.getSelectedIndex() == currentIndex) {
feedbackJTextField.setText("Correct!");
score = score + 1;
System.out.println("Score: " + score);
} else {
// if an incorrect answer is given
feedbackJTextField.setText("Sorry, incorrect!");
score = score - 1;
System.out.println("Score: " + score);
}
// inform user if quiz is over
if (count == 5) {
feedbackJTextField.setText(feedbackJTextField.getText() + " Game Over!");
nextFlagJButton.setEnabled(false);
submitJButton.setEnabled(false);
selectCountryJComboBox.setEnabled(false);
} else // if less than 5 flags have been displayed
{
submitJButton.setEnabled(false);
nextFlagJButton.setEnabled(true);
}
} // end method submitJButtonActionPerformed
// display next flag in the quiz
private void nextFlagJButtonActionPerformed(ActionEvent event) {
displayFlag(); // display next flag
count++;
// reset GUI components to initial states
feedbackJTextField.setText("");
selectCountryJComboBox.setSelectedIndex(0);
submitJButton.setEnabled(true);
nextFlagJButton.setEnabled(false);
} // end method nextFlagJButton.ActionPerformed
// main method
public static void main(String args[]) {
FlagQuiz application = new FlagQuiz();
application.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
} // end method main
} // end class FlagQuiz
Bem simples, mas eficaz.
South AfricaBrazilItalyChinaRussiaUnited StatesSpainAustralia
BSJUG - Baixada Santista Java Users Group 