Infographie

public void display( GLAutoDrawable drawable ) { 

      final GL2 gl = drawable.getGL().getGL2(); 

      gl.glScalef( 0.50f,0.25f,0.50f ); 

      gl.glBegin( GL2.GL_TRIANGLES );

      // Drawing Using Triangles 

      gl.glColor3f( 1.0f, 0.0f, 0.0f );   // Red 

      gl.glVertex3f( 0.5f,0.7f,0.0f );    // Top 

      gl.glColor3f( 0.0f,1.0f,0.0f );     // blue 

      gl.glVertex3f( -0.2f,-0.50f,0.0f ); // Bottom Left 

      gl.glColor3f( 0.0f,0.0f,1.0f );     // green 

      gl.glVertex3f( 0.5f,-0.5f,0.0f );   // Bottom Right 

      gl.glEnd(); 

   }

public void display( GLAutoDrawable drawable ) {

      final GL2 gl = drawable.getGL().getGL2(); 

      gl.glClear (GL2.GL_COLOR_BUFFER_BIT |  GL2.GL_DEPTH_BUFFER_BIT );  

      // Clear The Screen And The Depth Buffer 

      gl.glLoadIdentity();  // Reset The View     

      //triangle rotation      

      gl.glRotatef( rtri, 0.0f, 1.0f, 0.0f );  

      // Drawing Using Triangles 

      gl.glBegin( GL2.GL_TRIANGLES );          

      gl.glColor3f( 1.0f, 0.0f, 0.0f );   // Red 

      gl.glVertex3f( 0.5f,0.7f,0.0f );    // Top 

      gl.glColor3f( 0.0f,1.0f,0.0f );     // blue 

      gl.glVertex3f( -0.2f,-0.50f,0.0f ); // Bottom Left 

      gl.glColor3f( 0.0f,0.0f,1.0f );     // green 

      gl.glVertex3f( 0.5f,-0.5f,0.0f );   // Bottom Right 

      gl.glEnd();    

      gl.glFlush(); 

      rtri += 0.2f;  //assigning the angle               

   }