GL.glBegin(GL_POINTS)
GL.glVertex2i(x, y)
GL.glEnd()
for k in xrange(step):
x += x_in
y += y_in
GL.glBegin(GL_POINTS)
GL.glVertex2i(x, y)
GL.glEnd()
GL.glFlush()
def initialize():
GL.glClearColor(0.7, 0.7, 0.7, 0.7)
GL.glMatrixMode(GL.GL_PROJECTION)
GL.glLoadIdentity()
GLU.gluOrtho2D(-100, 100, -100, 100)
GLUT.glutInit()
GLU.gluInitDisplayMode(GLUT.GLUT_SINGLE | GLUT.GLUT_RGB)
GLUT.glutInitWIndowSize(500, 500)
GLUT.glutInitWIndowPosition(100, 100)
GLUT.glutCreateWindow("DDA Sistemas Graficos")
initialize()
GLUT.glutDisplayFunc(dda)
GLUT.glutMainLoop()
