[ncl-talk] exponential format for label bar

[Zhifeng Yang]

Hi Mary,

Maybe it’s better to tell you the maximum and minimum data. The data range from -0.00001 to 0.00001. And I want contour levels with 0.0000001 interval. If you have any data in hand, you can simply divid by a big number for the whole data, then get very small data, then you can draw with very small data.

Thank you for your concern, Mary.

Zhifeng
> On Mar 20, 2017, at 10:40 AM, Mary Haley <haley at ucar.edu> wrote:
> 
> Zhifeng,
> 
> What you are setting looks correct.
> 
> I was going to try to create an example so I could make sure this resource works as expected, but it's hard to get NCL to do a mix of exponential and fractional labels.
> 
> Can you either provide the data you are trying to contour or else tell me what the exact min/max is of your data, and what contour levels you are using, and I'll see if I can reproduce the problem.
> 
> Thanks,
> 
> --Mary
> 
> 
> On Sun, Mar 19, 2017 at 8:01 PM, Zhifeng Yang <yangzf01 at gmail.com <mailto:yangzf01 at gmail.com>> wrote:
> Hi Dennis,
> 
> I tried 
> 
> cres at cnLineLabelFormat= "0@!;*^se"
> But it doesn’t work. I also used other combination. It seems no effect at all.
> 
> Thank you
> Zhifeng
> 
>> On Mar 19, 2017, at 6:53 PM, Dennis Shea <shea at ucar.edu <mailto:shea at ucar.edu>> wrote:
>> 
>> http://www.ncl.ucar.edu/Applications/tickmarks.shtml <http://www.ncl.ucar.edu/Applications/tickmarks.shtml>
>> Example 8
>> 
>> may be what you want.
>> 
>> On Sun, Mar 19, 2017 at 4:01 PM, Zhifeng Yang <yangzf01 at gmail.com <mailto:yangzf01 at gmail.com>> wrote:
>> Hi 
>> 
>> I use some very small numbers to plot contour image. Since they are very small, like -0.000001, the label bar looks very wield. So I want to display the small number as exponential format on the label bar, such as -1.0e(-6) or -1.0*10^-6, rather than -0.000001. Do you have any ideas?
>> 
>> Thank you
>> Zhifeng
>> 
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