/* images.java - jpq - 03/01/03 - 20/01/03 - 12/04/09 * ajout de main() le 03/02/18 * modification 02/02/21 */ import java.awt.event.*; import java.awt.*; import java.util.*; import javax.swing.*; public class images extends JPanel { static final long serialVersionUID = 020221L; controles C; dessin D; table T; public images (int nsimul, int nimages, int max) { setLayout (new BorderLayout ()); D = new dessin (nsimul, nimages, max); T = new table(); C = new controles(); add ("North", C); add ("South", T); add ("Center", D); } //////////////////////////////////////////////////////////////////////////////// protected class dessin extends Panel { static final long serialVersionUID = 020221L; Image img; Graphics g; int nsimul, nimages, max, bsup, w, h, hmax; int [] histogramme; boolean [] bimg; boolean retrace; Random rnd; public dessin (int nsimul, int nimages, int max) { this.nsimul = nsimul; this.nimages = nimages; this.max = max; retrace = false; rnd = new Random(); } private void h (Graphics g) { bsup = max - 1; while (bsup >= 0 && histogramme [bsup] == 0) bsup --; bsup ++; hmax = 0; for (int i = 0; i < bsup; i ++) { int hi = histogramme [i]; if (hi > hmax) hmax = hi; } g.setColor (Color.white); g.fillRect (1, 1, w - 2, h - 2); g.setColor (Color.yellow); g.drawLine (20, h - 40, w, h - 40); g.drawLine (20, 40, 20, h - 40); g.setColor (Color.blue); g.drawString ("0", 5, h - 40); g.drawString (Integer.toString (hmax) + "_", 5, 40); for (int j = 0; j < bsup; j ++) { int x = j * (w - 50) / bsup + 50; int y = h - 40 - (int)((double)(histogramme [j] * (h - 80)) / hmax); g.setColor (Color.black); g.drawLine (x, y, x, h - 40); if (j % 10 == 9) { g.setColor (Color.blue); g.drawString (Integer.toString (j + 1), x, h - 10); } } g.setColor (Color.black); g.drawRect (0, 0, w - 1, h - 1); } public void paint (Graphics g1) { if (img == null || w != getSize().width || h != getSize().height) { w = getSize().width; h = getSize().height; img = createImage (w, h); g = img.getGraphics (); g.setColor (Color.white); g.fillRect (1, 1, w - 2, h - 2); g.setColor (Color.black); g.drawRect (0, 0, w - 1, h - 1); } if (histogramme == null) histogramme = new int [max]; if (bimg == null || bimg.length < nimages) bimg = new boolean [nimages]; if (retrace) { retrace = false; for (int j = 0; j < histogramme.length; j ++) histogramme [j] = 0; max = 0; for (int i = 0; i < nsimul; i ++) { for (int j = 0; j < nimages; j ++) bimg [j] = false; int na = 0; while (true) { // on obtient au hasard l'image numéro no (0<=no= max) max = na + 1; if (max > histogramme.length) { int [] nh = new int [max]; System.arraycopy (histogramme, 0, nh, 0, histogramme.length); histogramme = nh; } histogramme [na] ++; h (g); g1.drawImage (img, 0, 0, this); } } else g1.drawImage (img, 0, 0, this); } } //////////////////////////////////////////////////////////////////////////////// protected class controles extends Panel implements ActionListener { static final long serialVersionUID = 020221L; TextField tnsimul, tnimages; Button ok; Font f; private Label ajoutlbl (String s) { Label lbl = new Label (s); lbl.setFont (f); lbl.setBackground (Color.lightGray); return lbl; } private TextField ajouttf (int n, int n1) { TextField tf = new TextField (n); tf.setFont (f); tf.setText (Integer.toString (n1)); return tf; } public controles() { f = new Font ("Arial", Font.PLAIN, 10); // setLayout (new FlowLayout()); setBackground (Color.lightGray); add (ajoutlbl ("Simulations :")); add (tnsimul = ajouttf (5, D.nsimul)); add (ajoutlbl ("images :")); add (tnimages = ajouttf (5, D.nimages)); add (ok = new Button ("Ok")); ok.setFont (f); ok.addActionListener (this); } private int pint (TextField tf, int i) { try { i = Integer.parseInt(tf.getText()); } catch (NumberFormatException nfe) { } if (i <= 0) i = 1; tf.setText (Integer.toString (i)); return i; } public void actionPerformed (ActionEvent e) { if (e.getSource () == ok) { D.nsimul = pint (tnsimul, D.nsimul); // D.max = pint (tmax, D.max); D.nimages = pint (tnimages, D.nimages); D.retrace = T.retrace = true; T.ta.setText (""); D.repaint(); T.repaint(); } } } //////////////////////////////////////////////////////////////////////////////// protected class table extends Panel { static final long serialVersionUID = 020221L; TextArea ta; boolean retrace; public table() { setLayout (new FlowLayout()); setBackground (Color.lightGray); add (ta = new TextArea ("", 5, 50, TextArea.SCROLLBARS_HORIZONTAL_ONLY)); retrace = false; } public void paint (Graphics g) { if (retrace) { retrace = false; int n = 0; double somme = 0.0; double somme2 = 0.0; int pdec = 0; int ddec = 0; int med = 0; int i95 = 0; double dsimul = (double)(D.nsimul); double pdsimul = dsimul * 0.1; double dmed = dsimul * 0.5; double ddsimul = dsimul * 0.9; double d95 = dsimul * 0.95; String s1 = "nombres\t"; String s2 = "effectifs \t"; for (int i = 0; i < D.max; i ++) { int ip1 = i + 1; int dhi = D.histogramme [i]; s1 += Integer.toString (ip1) + "\t"; s2 += Integer.toString (dhi) + "\t"; n += dhi; if ((n >= pdsimul) && (pdec == 0)) pdec = ip1; if ((n >= dmed) && (med == 0)) med = ip1; if ((n >= ddsimul) && (ddec == 0)) ddec = ip1; if ((n >= d95) && (i95 == 0)) i95 = ip1; somme += dhi * ip1; somme2 += dhi * ip1 * ip1; } double moy = somme / n; double var = somme2 / n - moy * moy; ta.setText (s1 + "\n" + s2 + "\n1er décile = " + pdec + " ; médiane = " + med + " ; 9e décile = " + ddec + " ; seuil 95% = " + i95 + "\ntotal = " + n + "; moyenne = " + moy + "; variance = " + var); } } } //////////////////////////////////////////////////////////////////////////////// public static void main (String [] args) { int w = 600; int h = 400; int nsimul = 1000; int nimages = 6; int max = 50; images i = new images (nsimul, nimages, max); JFrame f = new JFrame ("images"); f.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE); f.add (i); f.setSize (w, h); f.setVisible (true); } }