7.py

import glfw
from OpenGL.GL import *
from OpenGL.GLU import *
import numpy as np

def render():
   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
   glEnable(GL_DEPTH_TEST)

   glLoadIdentity()

   drawFrame()

   glColor3ub(255, 255, 255)
   drawTriangle()

   glRotatef(30, 0, 0, 1)
   glTranslatef(0.6, 0, 0)

   drawFrame()
   glColor3ub(255, 0, 0)
   drawTriangle()

   glLoadIdentity()

   glTranslatef(0.6, 0, 0)
   glRotatef(30, 0, 0, 1)

   drawFrame()
   glColor3ub(0, 0, 255)
   drawTriangle()
		

def drawFrame():
   glBegin(GL_LINES)
   glColor3ub(255, 0, 0)
   glVertex2fv(np.array([0.,0.]))
   glVertex2fv(np.array([1.,0.]))
   glColor3ub(0, 255, 0)
   glVertex2fv(np.array([0.,0.]))
   glVertex2fv(np.array([0.,1.]))
   glEnd()

def drawTriangle():
   glBegin(GL_TRIANGLES)
   glVertex2fv(np.array([0.,.5]))
   glVertex2fv(np.array([0.,0.]))
   glVertex2fv(np.array([.5,0.]))
   glEnd()

def main():
    if not glfw.init():
        return
    window = glfw.create_window(480,480,'A', None,None)
    if not window:
        glfw.terminate()
        return
    glfw.make_context_current(window)

    while not glfw.window_should_close(window):
        glfw.poll_events()
        render()
        glfw.swap_buffers(window)

    glfw.terminate()

if __name__ == "__main__":
    main()