matplotlib-users Mailing List for matplotlib

John Hunter wrote:
> On Sat, Aug 30, 2008 at 4:13 PM, Xavier Gnata <xav...@gm...> wrote:
> 
>> Hi,
>>
>> I'm using the TkAgg backend. It is nice and fine except one issue:
>>
>> Here is a trivial testcase:
>>
>> import pylab
>> import numpy
>>
>> M=numpy.zeros((2000,2000))
>> pylab.imshow(M)
>>
>> The cursor position is displayed this way: x=1.23e03 y=1.72e03 (in right
>> corner of the window)
>> It should be formated as intergers and not as floats.
>>
>> It is not only cosmetics because with 1.23e03, we are missing the last
>> digit (it matters in my usecase and anyhow it is q bit stupid).
>>
>> The fix should be trivial but I have to find the line of interest...
>> 
>
> The x and y toolbar coordinate formatting are controlled by a pair of
> functions, fmt_xdata and fmt_ydata. You can set them to be anything
> you like, eg for integer formatting:
>
> def format_int(pylab.imshow(M)x):
> return '%d'%int(x)
>
> ax.fmt_xdata = format_int
>
>
> JDH
> 
Ok thanks it does the job.
However, I think it should really be done by default.
self.xaxis.major.formatter.set_scientific(sb) is not the best way to 
display pixel numbers (IMHO).
Xavier

On Sat, Aug 30, 2008 at 4:13 PM, Xavier Gnata <xav...@gm...> wrote:
> Hi,
>
> I'm using the TkAgg backend. It is nice and fine except one issue:
>
> Here is a trivial testcase:
>
> import pylab
> import numpy
>
> M=numpy.zeros((2000,2000))
> pylab.imshow(M)
>
> The cursor position is displayed this way: x=1.23e03 y=1.72e03 (in right
> corner of the window)
> It should be formated as intergers and not as floats.
>
> It is not only cosmetics because with 1.23e03, we are missing the last
> digit (it matters in my usecase and anyhow it is q bit stupid).
>
> The fix should be trivial but I have to find the line of interest...
The x and y toolbar coordinate formatting are controlled by a pair of
functions, fmt_xdata and fmt_ydata. You can set them to be anything
you like, eg for integer formatting:
def format_int(x):
 return '%d'%int(x)
ax.fmt_xdata = format_int
JDH