refactored jogl
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package lsystem.screen;
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import java.awt.*;
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import java.awt.event.*;
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import com.jogamp.opengl.GL;
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import com.jogamp.opengl.GL2;
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import com.jogamp.opengl.GLAutoDrawable;
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import com.jogamp.opengl.GLEventListener;
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import com.jogamp.opengl.awt.GLCanvas;
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import com.jogamp.opengl.util.Animator;
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/**
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* Article1.java author: InfoRital
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*
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* Code source du premier article. Article1 implémente {@link GLEventListener}
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* pour obtenir le mécanisme de callback
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*
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*/
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public class Jogl implements GLEventListener {
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public static void initialize(String[] args) {
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// Création de la fenêtre
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Frame frame = new Frame("L-système 3D");
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// Création du canvas pour dessiner dessus
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GLCanvas canvas = new GLCanvas();
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// Nous attachons ensuite le méchanisme de callback à notre surface dessinable
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canvas.addGLEventListener((GLEventListener) new Jogl());
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// dessin -> fenêtre
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frame.add(canvas);
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// Création de l'animator
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final Animator animator = new Animator(canvas);
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// croix rouge = fermeture de la fenêtre
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frame.addWindowListener(new WindowAdapter() {
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public void windowClosing(WindowEvent e) {
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// Thread pour arrêter l'animator avant la fenêtre
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new Thread(animator::stop).start();
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}
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});
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// Taille de la fenêtre
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frame.setSize(300, 300);
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frame.setVisible(true);
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// Démarrage de l'animator qui va se charger de faire des appels à la méthode
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animator.start();
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}
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// init() sera appelée une fois au début de l'animation. C'est dans cette méthode
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// que nous nous chargerons de toutes les opérations d'initialisation
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public void init(GLAutoDrawable drawable) {
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// GLEventListener renvoie un contexte (drawable)
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// que nous allons utiliser pour instancier un objet de type GL
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// qui nous permettra d'utiliser les fonctions OpenGL
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GL gl = drawable.getGL();
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// désactiver la synchronisation verticale indépendamment de la plateforme utilisée
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gl.setSwapInterval(1);
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}
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// Appelée que si la fenêtre d'affichage est redimensionnée
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public void reshape(GLAutoDrawable drawable, int x, int y, int width, int height) {
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GL gl = drawable.getGL();
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}
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// display() sera appelée en boucle tout au long de l'application par la classe Animator.
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// C'est dans cette fonction qu'on fera tout ce qui doit être affiché
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public void display(GLAutoDrawable drawable) {
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GL gl = drawable.getGL();
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((GL2) gl).glBegin( GL2.GL_LINES );
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((GL2) gl).glVertex3f( -0.75f,0f,3f );// 3 units into the window
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((GL2) gl).glVertex3f( 0f,-0.75f,3f );
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((GL2) gl).glEnd();
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}
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/**
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* displayChanged() est appelée si le mode d'affichage par exemple est modifié.
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* Cependant nous n'implémenterons pas cette méthode.
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*/
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/*
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* public void displayChanged(GLAutoDrawable drawable, boolean modeChanged,
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* boolean deviceChanged) { }
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*/
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@Override
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public void dispose(GLAutoDrawable arg0) {
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// TODO Auto-generated method stub
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}
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}
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89
src/lsystem/screen/JoglEventListener.java
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89
src/lsystem/screen/JoglEventListener.java
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package lsystem.screen;
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import com.jogamp.opengl.GL;
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import com.jogamp.opengl.GL2;
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import com.jogamp.opengl.GLAutoDrawable;
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import com.jogamp.opengl.GLEventListener;
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import com.jogamp.opengl.glu.GLU;
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import com.jogamp.opengl.util.gl2.GLUT;
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public class JoglEventListener implements GLEventListener {
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private GLU glu = new GLU();
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private GLUT glut = new GLUT();
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private float camera [] = {0f, 0f, 5f};
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private float [] light_0_ambient = {0.01f, 0.01f, 0.01f, 0.01f};
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private float [] light_0_diffuse = {1.0f, 1.0f, 1.0f, 1.0f};
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private float [] light_0_specular = {1.0f,1.0f, 1.0f, 1.0f};
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private float [] light_0_position = {100f, 0f, 10f, 1f};
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private float [] material_specular = {1.0f, 1.0f, 1.0f, 1.0f};
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private float angle = 0f;
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@Override
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public void init(GLAutoDrawable glAutoDrawable) {
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GL2 gl = glAutoDrawable.getGL().getGL2();
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gl.glClearColor(0.8f, 0.5f, 0.0f, 1.0f);
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gl.glEnable(GL2.GL_DEPTH_TEST);
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gl.glClearDepth(1.0f);
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gl.glShadeModel(GL2.GL_SMOOTH);
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gl.glEnable(GL2.GL_LIGHTING);
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gl.glEnable(GL2.GL_LIGHT0);
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gl.glLightfv(GL2.GL_LIGHT0, GL2.GL_AMBIENT, light_0_ambient, 0);
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gl.glLightfv(GL2.GL_LIGHT0, GL2.GL_DIFFUSE, light_0_diffuse, 0);
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gl.glLightfv(GL2.GL_LIGHT0, GL2.GL_SPECULAR, light_0_specular, 0);
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gl.glLightfv(GL2.GL_LIGHT0, GL2.GL_POSITION, light_0_position, 0);
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gl.glEnable(GL2.GL_COLOR_MATERIAL);
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gl.glColorMaterial(GL2.GL_FRONT_AND_BACK, GL2.GL_AMBIENT_AND_DIFFUSE);
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gl.glMateriali(GL2.GL_FRONT_AND_BACK, GL2.GL_SHININESS, 90);
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gl.glMaterialfv(GL2.GL_FRONT_AND_BACK, GL2.GL_SPECULAR, material_specular, 0);
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}
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@Override
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public void dispose(GLAutoDrawable glAutoDrawable) {
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}
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@Override
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public void display(GLAutoDrawable glAutoDrawable) {
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GL2 gl = glAutoDrawable.getGL().getGL2();
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gl.glClear(GL2.GL_COLOR_BUFFER_BIT | GL2.GL_DEPTH_BUFFER_BIT);
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gl.glLoadIdentity();
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glu.gluLookAt(
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camera[0], camera[1], camera[2],
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0.0f, 0.0f, 0.0f,
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0.0f, 1.0f, 0.0f
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);
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gl.glRotatef(angle, 0f, 1f, 0f);
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gl.glColor3f(1.0f, 0.0f, 0.0f);
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glut.glutSolidSphere(1.0f, 20, 20);
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angle += 0.1f;
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angle %= 360f;
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}
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@Override
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public void reshape(GLAutoDrawable glAutoDrawable, int x, int y, int width, int height) {
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GL2 gl = glAutoDrawable.getGL().getGL2();
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gl.glViewport(x, y, width, height);
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gl.glMatrixMode(GL2.GL_PROJECTION);
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gl.glLoadIdentity();
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glu.gluPerspective(60.0f, (float) width/height, 0.1f, 10.0f);
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gl.glMatrixMode(GL2.GL_MODELVIEW);
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}
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}
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34
src/lsystem/screen/SwingGLCanvas.java
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src/lsystem/screen/SwingGLCanvas.java
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package lsystem.screen;
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import com.jogamp.opengl.GLCapabilities;
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import com.jogamp.opengl.GLProfile;
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import com.jogamp.opengl.awt.GLCanvas;
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import com.jogamp.opengl.util.FPSAnimator;
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import javax.swing.*;
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import java.awt.*;
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import java.awt.event.WindowAdapter;
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import java.awt.event.WindowEvent;
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public class SwingGLCanvas {
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public SwingGLCanvas() {
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GLProfile glProfile = GLProfile.getDefault();
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GLCapabilities glCapabilities = new GLCapabilities(glProfile);
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final GLCanvas glCanvas = new GLCanvas(glCapabilities);
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glCanvas.addGLEventListener(new JoglEventListener());
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final JFrame jframe = new JFrame("L-System");
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final FPSAnimator animator = new FPSAnimator(glCanvas, 60);
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jframe.addWindowListener(new WindowAdapter() {
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@Override
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public void windowClosing(WindowEvent e) {
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jframe.dispose();
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}
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});
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jframe.getContentPane().add(glCanvas, BorderLayout.CENTER);
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jframe.setSize(Constants.WIDTH, Constants.HEIGHT);
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animator.start();
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jframe.setVisible(true);
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}
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}
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