[Matplotlib-users] Slider and Animation

[bhargav v. <coo...@gm...>]

Hello All, 

I have two questions regarding the matplotlib Slider and animation. 

Question 1: How to create an image along with a Slider axes, such that the Slider values changes with time? 

Here is the example structure of the code I am trying but unsuccessful to have an animated Slider that changes with time.

def complicated_image(Timestep):
	"""Write code to create complicated image where all variables to plot are certain functions of Timestep"""
	p2 = plt.quiver(X,Y,Z1,Z2)
	p3 = plt.pcolormesh(Delta0)
	p1 = plt.contour(r,z,value,10)

	return plt.gca()  [ Question 2 : Is there are better way to return the axis so that it can be used in the animate_image function.]

def animate_image():
	f1 = figure()
	ax = gca()
	
	for i in range(100):
		ax.cla()
		ax = complicated_image(i)
		axtime = plt.axes([0.1,0.01,0.8,0.02],axisbg='white')
		stime = Slider(axtime,'TimeStep',0,100,valinit=0)
		
		f1.savefig('slidertest%03d.png'%i)


If I omit the lines containing the axtime axes (i.e. the part related to Slider) then I get the image properly that changes with time but of course without the Slider.



Regards
Bhargav Vaidya