E01_10.java

// EJERCICIO 1 (dibuja un triAngulo)
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.media.opengl.*;
import javax.media.opengl.glu.*;
import com.sun.opengl.util.GLUT;


public class E01_10 extends JFrame implements GLEventListener
{
	GLU glu = new GLU();
	GL gl = null;
	GLUT glut = new GLUT();

	public static void main(String[] args)
	{
		E01_10 frame = new E01_10();
		frame.addWindowListener( new WindowAdapter() {
			public void windowClosed(WindowEvent e) { System.exit(0); }
			public void windowClosing(WindowEvent e) { windowClosed(e); }
	    	} );
	}

	public E01_10()
	{
		super("P01_10");
		GLCapabilities caps = new GLCapabilities();
		GLCanvas canvas = new GLCanvas(caps);
		canvas.addGLEventListener(this);

		add("Center", canvas);
		setSize(500, 500);
		setLocationRelativeTo(null);
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		setVisible(true);
	}

	void run() { }

	public void init (GLAutoDrawable DRAW)
	{
		gl = DRAW.getGL();

		gl.glClearColor (0.0f, 0.0f, 0.0f, 0.0f);
		gl.glLoadIdentity();
		gl.glOrtho(-2.0, 7.0, -2.0, 7.0, 0.0, 1.0);

	}

	public void reshape(GLAutoDrawable drawable, int x, int y, int w, int h)
	{

		GL gl = drawable.getGL();
		GLU glu = new GLU();

		gl.glOrtho(-2.0, 7.0, -2.0, 7.0, 0.0, 1.0);
		gl.glLoadIdentity();

	}

	public void display(GLAutoDrawable drawable)
	{
		gl.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT);
		gl.glBegin(GL.GL_TRIANGLES);
			gl.glColor3d(1.0,0.0,0.0); gl.glVertex3d(0.0,0.8,0.0);	// rojo
			gl.glColor3d(0.0,1.0,0.0); gl.glVertex3d(-0.6,-0.2,0.0);// verde
			gl.glColor3d(0.0,0.0,1.0); gl.glVertex3d(0.6,-0.2,0.0);	// azul
		gl.glEnd();

		gl.glPopMatrix();
		gl.glFlush();
	}



	public void displayChanged(GLAutoDrawable drawable, boolean modeChanged, boolean deviceChanged){   }
}