Re: Why doesn't my text show up in my plot?

Mary,

I will try and come up with an example. The gsn_add_text isn't working
either. Now, I could be using it wrong (most likely).

My question is, should gsn_add_text be able to plot text outside of the
boundary of the plot map?

Thanks,
Craig

On Wed, Feb 26, 2014 at 1:26 PM, Craig Tierney - NOAA Affiliate <
craig.tierney@noaa.gov> wrote:

> On Wed, Feb 26, 2014 at 12:45 PM, Mary Haley <haley@ucar.edu> wrote:
>
>> Craig,
>>
>> Can you trim this down to a short but complete script that illustrates
>> the problem? I can't tell from looking at the code snippet what might be
>> going on.
>>
>>
> I will see what I can do. The plotting script is really 1000+ lines of
> NCL that allow me plot any dataset, from any resolution, of any
> meteorological field, and just do the right thing. This script is plotting
> a data on a icosahederal grid.
>
> There could be a maximization issue, or maybe one plot element is covering
>> up another, etc.
>>
>> Note: generally I recommend against using gsn_text_ndc (or any of the
>> gsn_xxx_ndc procedures) if you can use gsn_add_xxx instead.
>>
>>
> I was not a fan of working in NDC space, but it did help me simplify my
> code because when the scripts change domain (eg. global to conus), then I
> would have to rescale the coordinates. In NDC space and an assumption of
> where the plot ends up, I can safely tuck away the text in the corner of
> the plot.
>
>
>> The difference, of course, is that with gsn_xxx_ndc you need to use NDC
>> coordinates (coordinates from 0 to 1), whereas with the gsn_add_xxx
>> functions you need to use the plot's coordinate space. Also, with
>> gsn_xxx_ndc, the primitive gets drawn right in that moment and it is *not*
>> attached to anything. The gsn_add_xxx function will attach the primitive to
>> the plot, but not draw it. So, you have to draw the plot in order to see
>> the primitive. But, the benefit is if you resize the plot, then the
>> primitive will be resized automatically.
>>
>>
> I will try the gsn_add_text and see if that resolves the order issue.
>
> Craig
>
>> --Mary
>>
>> On Feb 26, 2014, at 11:59 AM, Craig Tierney - NOAA Affiliate <
>> craig.tierney@noaa.gov> wrote:
>>
>> > I am using ncl 6.1.2. When I try to call gsn_text_ndc before the call
>> to gsn_csm_contour_map, the text displays.
>> >
>> > ----------------------------
>> > ; Create a control string for the plot
>> > cstr="Min/Max control: "+min(d1)+"/"+max(d1)+" "+"Min/Max Diff:
>> "+min(data)+"/"+max(data)
>> > print(cstr)
>> >
>> > ; Attach all necessary labels
>> > txresb = True
>> > txresb@txFontHeightF = 0.010
>> > gsn_text_ndc(wks,cstr, 0.5, 0.1, txresb)
>> >
>> > ; plot the map
>> > map = gsn_csm_contour_map(wks,data,res)
>> >
>> > draw(map)
>> > -----------------------------
>> >
>> > When I reverse it, the text does not display.
>> >
>> > ----------------------------
>> > ; Create a control string for the plot
>> > cstr="Min/Max control: "+min(d1)+"/"+max(d1)+" "+"Min/Max Diff:
>> "+min(data)+"/"+max(data)
>> > print(cstr)
>> >
>> > ; plot the map
>> > map = gsn_csm_contour_map(wks,data,res)
>> >
>> > ; Attach all necessary labels
>> > txresb = True
>> > txresb@txFontHeightF = 0.010
>> > gsn_text_ndc(wks,cstr, 0.5, 0.1, txresb)
>> >
>> > draw(map)
>> > -----------------------------
>> >
>> > Why is this and is there a way to enable additional debugging so that I
>> could see what NCL is doing when I run into future problems like this?
>> >
>> > Thanks,
>> > Craig
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>>
>>
>
Received on Wed Feb 26 13:55:11 2014