Révision 2

PyOpenGL-Demo/da/dots.py (revision 2)
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#!/usr/bin/python
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#!/usr/bin/python3
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# This is statement is required by the build system to query build info


  		





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if __name__ == '__build__':


  		





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	raise Exception


  		





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import string


  		





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__version__ = string.split('$Revision: 1.1.1.1 $')[1]


  		





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__date__ = string.join(string.split('$Date: 2007/02/15 19:25:28 $')[1:3], ' ')


  		





  
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__version__ = str.split('$Revision: 1.1.1.1 $')[1]


  		





  
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__date__ = str.join('$Date: 2007/02/15 19:25:28 $', ' ')


  		





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__author__ = 'Tarn Weisner Burton <twburton@users.sourceforge.net>'


  		





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try:


  		





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	from numpy import *


  		





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	from numpy.random import *


  		





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except ImportError, err:


  		





  
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except ImportError:


  		





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	try: 


  		





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		from Numeric import *


  		





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		from RandomArray import *


  		





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	except ImportError, err:


  		





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		print "This demo requires the numpy or Numeric extension, sorry"


  		





  
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	except ImportError:


  		





  
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		print("This demo requires the numpy or Numeric extension, sorry")


  		





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		import sys


  		





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		sys.exit()


  		





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import string, sys


  		





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from OpenGL.GL import *


  		





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from OpenGL.GLUT import *



  		





  
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from OpenGL.GLUT import *


  		





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MY_LIST=1


  		





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NUMDOTS = 500


  		





  ......




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def display(*args):


  		





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	global x, y, move_x, move_y, NUMDOTS, NUMDOTS2, MAX_AGE, age


  		





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	glClearColor(0.0, 0.0, 0.0, 0.0)



  		





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	glClear(GL_COLOR_BUFFER_BIT)



  		





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	glColor3f(1.0,1.0,0.0)



  		





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	x = x + move_x



  		





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	y = y + move_y



  		





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	age = age + 1



  		





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	which = greater(age, MAX_AGE)



  		





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	x = choose(which, (x, random(NUMDOTS)))



  		





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	y = choose(which, (y, random(NUMDOTS)))



  		





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	age = choose(which, (age, 0))



  		





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	x = choose(greater(x,1.0),(x,x-1.0))  # very cool - wraparound



  		





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	y = choose(greater(y,1.0),(y,y-1.0))



  		





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	x2 = random(NUMDOTS2)



  		





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	y2 = random(NUMDOTS2)



  		





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	v = concatenate((transpose(array([x,y])), transpose(array([x-.005,y+.005])), transpose(array([x+.005,y-.005])), transpose(array([x2,y2]))))



  		





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	glVertexPointerd(v)



  		





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	glEnableClientState(GL_VERTEX_ARRAY)



  		





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	glDrawArrays(GL_POINTS, 0, len(v))



  		





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	glDisableClientState(GL_VERTEX_ARRAY)



  		





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	glFlush()



  		





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	glutSwapBuffers()



  		





  
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	glClearColor(0.0, 0.0, 0.0, 0.0)


  		





  
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	glClear(GL_COLOR_BUFFER_BIT)


  		





  
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	glColor3f(1.0,1.0,0.0)


  		





  
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	x = x + move_x


  		





  
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	y = y + move_y


  		





  
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	age = age + 1


  		





  
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	which = greater(age, MAX_AGE)


  		





  
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	x = choose(which, (x, random(NUMDOTS)))


  		





  
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	y = choose(which, (y, random(NUMDOTS)))


  		





  
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	age = choose(which, (age, 0))


  		





  
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	x = choose(greater(x,1.0),(x,x-1.0))  # very cool - wraparound


  		





  
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	y = choose(greater(y,1.0),(y,y-1.0))


  		





  
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	x2 = random(NUMDOTS2)


  		





  
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	y2 = random(NUMDOTS2)


  		





  
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	v = concatenate((transpose(array([x,y])), transpose(array([x-.005,y+.005])), transpose(array([x+.005,y-.005])), transpose(array([x2,y2]))))


  		





  
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	glVertexPointerd(v)


  		





  
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	glEnableClientState(GL_VERTEX_ARRAY)


  		





  
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	glDrawArrays(GL_POINTS, 0, len(v))


  		





  
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	glDisableClientState(GL_VERTEX_ARRAY)


  		





  
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	glFlush()


  		





  
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	glutSwapBuffers()


  		





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def halt():


  		





  ......




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	glutInit(sys.argv)


  		





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	glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB)


  		





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	glutInitWindowSize(300, 300)


  		





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	glutCreateWindow('Dots')


  		





  
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	glutCreateWindow(b'Dots')


  		





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	setup_viewport()


  		





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	glutReshapeFunc(reshape)


  		





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	glutDisplayFunc(display)


  		





  ......




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	glutKeyboardFunc(keyboard)


  		





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	glutMainLoop()


  		





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print "Use the mouse buttons to control some of the dots."


  		





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print "Hit any key to quit."


  		





  
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print("Use the mouse buttons to control some of the dots.")


  		





  
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print("Hit any key to quit.")


  		





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main()


  		





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