Re: [Matplotlib-users] imshow clim question

[John H. <jdh...@ac...>]

>>>>> "Yogesh" == Yogesh Wadadekar <wad...@st...> writes:

    Yogesh> Hi,

    Yogesh> I encounter problems with the solution below. My test case
    Yogesh> from yesterday was really not a 'test case' because both
    Yogesh> images had near identical values. Thus, the auto vmin,vmax
    Yogesh> settings were the same in both images.

I think the difference we are seeing may due to the fact that the norm
attributes are not set until the figure is drawn.  So in a script with
interactive off, the vmin and vmax attrs are not updated from None to
their True values.  You can fix this either by working in interactive
mode or by forcing a draw

  from pylab import imshow, draw, rand, show

  im = imshow(rand(10,10))
  #draw()
  print im.norm.vmin, im.norm.vmax
  show()

Try the script above with draw commented and uncommented.

JDH