Hi Eric, the following lines below will show this. Interestingly, the
correct (or, at least, what I want) behaviour results from using pcolor, but
not with contourf.
a = arange(12, 27, .5)
b = arange(17, 23, .5)
x, y = meshgrid(a, b)
# get max and min for clim
cmin = min(x.min(), y.min()) # cmin = 12
cmax = max(x.max(), y.max()) # cmax = 26.5
figure(1)
contourf(x)
#pcolor(x)
clim([cmin, cmax])
colorbar()
figure(2)
contourf(y)
#pcolor(y)
clim([cmin, cmax])
colorbar()
-Evan
On 3/27/07, Eric Firing <[EMAIL PROTECTED]> wrote:
Evan,
That is getting clearer, but it still seems to me that no override
should be needed in this case; it should "just work", so if it doesn't,
either there is a bug in mpl or a bug in the code. It would be most
helpful if you would write a stripped-down simplest-possible script that
illustrates the problem. Then I can either show how to fix the script,
or I can use the script to help me track down the mpl bug, if that is
the problem.
Eric
Evan Mason wrote:
> Hi Eric
>
> I am using matplotlib-0.90.0.
>
> I am making 2 contourf subplots of temperature values which have similar
> but not equal ranges. In subplot1 the range is 15-25; in subplot2 it is
> 16 to 24. I use clim, giving it the max and min values obtained from a
> comparison of subplot1 and 2; i.e., I use clim([15, 25]) on both
> subplots. The two subplots display exactly as I want them to.
>
> Next, I want 2 colorbars to go with the two subplots. I want the range
> of each colorbar to be the same, set as the clim values (15 and 25).
> This happens for subplot1, but not for subplot2, which shows the range
> 16-24, following its input data range and not the clim values.
>
> So what I want to know is if it is possible to overide the colorbar
> limits, setting them to 15-25?
>
> I hope that's clearer now, thanks, Evan
>
>
>
> On 3/27/07, * Eric Firing* <[EMAIL PROTECTED]
> <mailto:[EMAIL PROTECTED]>> wrote:
>
> Evan,
>
> It is still not quite clear to me what you want versus what you are
> getting. With recent versions of mpl, the colorbar automatically
uses
> the same color boundaries as contourf, if that is what the colorbar
is
> tracking. What version of mpl are you using?
>
> (With the most recent mpl I see that there is a strange bug such
that
> setting clim clobbers the axis tick labeling for the colorbar--yet
> another thing that needs to be figured out and fixed.)
>
>
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