[ncl-talk] Disappearing Dots (Revisited)

Tue Jan 14 20:26:26 MST 2020

It does, after all, simply return "plt," which I thought would be the one
to store in an array (arr(i)), from the call itself, not the function
within.  That's why I am a bit confused.

On Wed, Jan 15, 2020 at 5:25 AM Barry Lynn <barry.h.lynn at gmail.com> wrote:

> Rashed's fix worked fine.  I wonder why I am able to call the arrow
> routine with a single array name (not array(i)).
>
> Thanks again.
>
> On Tue, Jan 14, 2020 at 9:48 PM Barry Lynn <barry.h.lynn at gmail.com> wrote:
>
>> Rashed seems to demonstrate that his version works, so I will probably
>> find the same.  I'll update later.
>>
>> Thank you for the help.
>>
>> Barry
>>
>> On Tue, Jan 14, 2020 at 9:47 PM Barry Lynn <barry.h.lynn at gmail.com>
>> wrote:
>>
>>> Hi Adam, Rasheed.
>>>
>>> In both cases, I call the function within a loop.  The only difference
>>> is whether I refer to array(i) or arr_0, arr_1... n.
>>>
>>> In any case, I will try Rashed's version.
>>>
>>> Barry
>>>
>>> On Tue, Jan 14, 2020 at 9:06 PM Adam Phillips <asphilli at ucar.edu> wrote:
>>>
>>>> Hi Barry,
>>>> If I had to guess, it is that the arrow function writes the
>>>> gsn_add_polyline output as attributes named arr,arr1, and arr2 to the plt
>>>> array that is to be returned by the function. If you call the function
>>>> multiple times and pass all the graphical output to the same logical array
>>>> named "array", each time you call arrow, array at arr, array at arr1 and
>>>> array at arr2 will get overwritten.  To get around this, you should alter
>>>> the arrow function to use the unique_string function.
>>>> https://www.ncl.ucar.edu/Document/Functions/Built-in/unique_string.shtml
>>>>
>>>> For an example of how to do this, see polymarker example #18:
>>>> https://www.ncl.ucar.edu/Applications/polyg.shtml#ex18
>>>>
>>>> For example, change this:
>>>> plt at arr = gsn_add_polyline(wks,plt,xpts,ypts,res)
>>>> to this:
>>>> str = unique_string("arr")
>>>> plt@$str$ = gsn_add_polyline(wks,plt,xpts,ypts,res)
>>>>
>>>> and do the same for the other two calls to gsn_add_polyline.
>>>> Hope that helps!
>>>> Adam
>>>>
>>>>
>>>> On Tue, Jan 14, 2020 at 9:45 AM Barry Lynn via ncl-talk <
>>>> ncl-talk at ucar.edu> wrote:
>>>>
>>>>> Hi:
>>>>>
>>>>> I have a bit of a mystery:
>>>>>
>>>>> I have a loop where I am calling gsn_add_polymarker. I created an
>>>>> array (dum_b(n_calls)) so I could plot the markers within the loop.
>>>>>
>>>>> dum_b(i) = gsn_add_polymarker(wks,plot,lon_old(i),lat_old(i),mkres)
>>>>>
>>>>>
>>>>> However, when I call:
>>>>>
>>>>>
>>>>> array(i) = arrow(wks,plot,xpts,ypts,mkres)
>>>>>
>>>>>
>>>>> I am not able to make the lines with the arrows (more than once).
>>>>>
>>>>>
>>>>> warning:TransformPostDraw: tfPolyDrawList element 1 is invalid
>>>>>
>>>>>
>>>>> Yet, if I call the same with
>>>>>
>>>>>
>>>>> arr_0 = arrow...
>>>>>
>>>>>
>>>>> arr_1 = arrow...
>>>>>
>>>>>
>>>>> up to n_calls, I have no problem.
>>>>>
>>>>>
>>>>> If someone can solve the mystery, I would be curious to find out the
>>>>> reason for this "strange" behavior.
>>>>>
>>>>>
>>>>> https://www.ncl.ucar.edu/Support/talk_archives/2010/att-1344/arrow.ncl
>>>>>
>>>>> On Mon, Jul 8, 2019 at 12:13 PM Barry Lynn <barry.h.lynn at gmail.com>
>>>>> wrote:
>>>>>
>>>>>> Hi:
>>>>>>
>>>>>> That was absolutely the correct solution -- thank you.
>>>>>>
>>>>>> Are you aware of a way to increase the spacing between maps?  I am
>>>>>> using wrf resources so this is very obtuse.
>>>>>>
>>>>>> Barry
>>>>>>
>>>>>> On Mon, Jul 8, 2019 at 10:44 AM Rashed Mahmood <
>>>>>> rashidcomsis at gmail.com> wrote:
>>>>>>
>>>>>>> Hi Barry,
>>>>>>> A quick look suggests that it may be related to not specifying
>>>>>>> unique ids for markid and textid:
>>>>>>>     markid = gsn_add_polymarker(wks,plots(0),lon,lat,mkres)
>>>>>>>     textid = gsn_add_text(wks,plots(0),cities,lon,lat,txres)
>>>>>>>
>>>>>>> Next lines should have,
>>>>>>> markid*1 *= gsn_add_polymarker(wks,plots(0),lon,lat,mkres)
>>>>>>> textid*1* = gsn_add_text(wks,plots(0),cities,lon,lat,txres)
>>>>>>>
>>>>>>> and so on...
>>>>>>>
>>>>>>> Cheers
>>>>>>>
>>>>>>> Rashed
>>>>>>>
>>>>>>>
>>>>>>> On Mon, Jul 8, 2019 at 7:51 AM Barry Lynn via ncl-talk <
>>>>>>> ncl-talk at ucar.edu> wrote:
>>>>>>>
>>>>>>>> Hello:
>>>>>>>>
>>>>>>>> For some reason, the markid only appears on the last graph, but not
>>>>>>>> the first two.  Yet, the "call" to each is the same.  I had this problem in
>>>>>>>> other programs I wrote.
>>>>>>>>
>>>>>>>> If you have a suggestion, thank you,
>>>>>>>>
>>>>>>>> Barry
>>>>>>>> --
>>>>>>>> Barry H. Lynn, Ph.D
>>>>>>>> Senior Associate Scientist, Lecturer,
>>>>>>>> The Institute of the Earth Science,
>>>>>>>> The Hebrew University of Jerusalem,
>>>>>>>> Givat Ram, Jerusalem 91904, Israel
>>>>>>>> Tel: 972 547 231 170
>>>>>>>> Fax: (972)-25662581
>>>>>>>>
>>>>>>>> C.E.O, Weather It Is, LTD
>>>>>>>> Weather and Climate Focus
>>>>>>>> http://weather-it-is.com
>>>>>>>> Jerusalem, Israel
>>>>>>>> Local: 02 930 9525
>>>>>>>> Cell: 054 7 231 170
>>>>>>>> Int-IS: x972 2 930 9525
>>>>>>>>
>>>>>>>> _______________________________________________
>>>>>>>> ncl-talk mailing list
>>>>>>>> ncl-talk at ucar.edu
>>>>>>>> List instructions, subscriber options, unsubscribe:
>>>>>>>> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>>>>>>>
>>>>>>>
>>>>>>
>>>>>> --
>>>>>> Barry H. Lynn, Ph.D
>>>>>> Senior Associate Scientist, Lecturer,
>>>>>> The Institute of the Earth Science,
>>>>>> The Hebrew University of Jerusalem,
>>>>>> Givat Ram, Jerusalem 91904, Israel
>>>>>> Tel: 972 547 231 170
>>>>>> Fax: (972)-25662581
>>>>>>
>>>>>> C.E.O, Weather It Is, LTD
>>>>>> Weather and Climate Focus
>>>>>> http://weather-it-is.com
>>>>>> Jerusalem, Israel
>>>>>> Local: 02 930 9525
>>>>>> Cell: 054 7 231 170
>>>>>> Int-IS: x972 2 930 9525
>>>>>>
>>>>>>
>>>>>
>>>>> --
>>>>> Barry H. Lynn, Ph.D
>>>>> Senior Associate Scientist, Lecturer,
>>>>> The Institute of the Earth Science,
>>>>> The Hebrew University of Jerusalem,
>>>>> Givat Ram, Jerusalem 91904, Israel
>>>>> Tel: 972 547 231 170
>>>>> Fax: (972)-25662581
>>>>>
>>>>> C.E.O, Weather It Is, LTD
>>>>> Weather and Climate Focus
>>>>> http://weather-it-is.com
>>>>> Jerusalem, Israel
>>>>> Local: 02 930 9525
>>>>> Cell: 054 7 231 170
>>>>> Int-IS: x972 2 930 9525
>>>>>
>>>>> _______________________________________________
>>>>> ncl-talk mailing list
>>>>> ncl-talk at ucar.edu
>>>>> List instructions, subscriber options, unsubscribe:
>>>>> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>>>>
>>>>
>>>>
>>>> --
>>>> Adam Phillips
>>>> Associate Scientist,  Climate and Global Dynamics Laboratory, NCAR
>>>> www.cgd.ucar.edu/staff/asphilli/   303-497-1726
>>>>
>>>> <http://www.cgd.ucar.edu/staff/asphilli>
>>>>
>>>
>>>
>>> --
>>> Barry H. Lynn, Ph.D
>>> Senior Associate Scientist, Lecturer,
>>> The Institute of the Earth Science,
>>> The Hebrew University of Jerusalem,
>>> Givat Ram, Jerusalem 91904, Israel
>>> Tel: 972 547 231 170
>>> Fax: (972)-25662581
>>>
>>> C.E.O, Weather It Is, LTD
>>> Weather and Climate Focus
>>> http://weather-it-is.com
>>> Jerusalem, Israel
>>> Local: 02 930 9525
>>> Cell: 054 7 231 170
>>> Int-IS: x972 2 930 9525
>>>
>>>
>>
>> --
>> Barry H. Lynn, Ph.D
>> Senior Associate Scientist, Lecturer,
>> The Institute of the Earth Science,
>> The Hebrew University of Jerusalem,
>> Givat Ram, Jerusalem 91904, Israel
>> Tel: 972 547 231 170
>> Fax: (972)-25662581
>>
>> C.E.O, Weather It Is, LTD
>> Weather and Climate Focus
>> http://weather-it-is.com
>> Jerusalem, Israel
>> Local: 02 930 9525
>> Cell: 054 7 231 170
>> Int-IS: x972 2 930 9525
>>
>>
>
> --
> Barry H. Lynn, Ph.D
> Senior Associate Scientist, Lecturer,
> The Institute of the Earth Science,
> The Hebrew University of Jerusalem,
> Givat Ram, Jerusalem 91904, Israel
> Tel: 972 547 231 170
> Fax: (972)-25662581
>
> C.E.O, Weather It Is, LTD
> Weather and Climate Focus
> http://weather-it-is.com
> Jerusalem, Israel
> Local: 02 930 9525
> Cell: 054 7 231 170
> Int-IS: x972 2 930 9525
>
>

-- 
Barry H. Lynn, Ph.D
Senior Associate Scientist, Lecturer,
The Institute of the Earth Science,
The Hebrew University of Jerusalem,
Givat Ram, Jerusalem 91904, Israel
Tel: 972 547 231 170
Fax: (972)-25662581

C.E.O, Weather It Is, LTD
Weather and Climate Focus
http://weather-it-is.com
Jerusalem, Israel
Local: 02 930 9525
Cell: 054 7 231 170
Int-IS: x972 2 930 9525
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