[ncl-talk] Contour Plot Help

Mariama Barr - Dallas bama4 at umbc.edu
Wed Sep 16 09:59:41 MDT 2015 

My mistake, I see now that the data ranges significantly more, does this
affect the contour even though I set a min and max for contouring?

On Wed, Sep 16, 2015 at 11:57 AM, Mariama Barr - Dallas <bama4 at umbc.edu>
wrote:

> I have a software feature that displays all data values that I used
> before, but for specifics, here is the printout:
>
>
> ​
>
> On Wed, Sep 16, 2015 at 11:47 AM, Dennis Shea <shea at ucar.edu> wrote:
>
>> To my knowledge, you have not done what I requested. Right before you use
>> the plot function
>>
>>    printVarSummary(var)
>>    printMinMax(var,0)
>>
>> The output has not been sent to ncl-talk
>> ---
>>
>>
>> I'll also add that the following might help. Add this before the plot
>> function
>>
>>
>> https://www.ncl.ucar.edu/Document/Functions/Contributed/stat_dispersion.shtml
>>
>>
>> ==
>>
>>   opt = True
>>   opt at PrintStat = True
>>   statb = *stat_dispersion*(var, opt )
>>
>>     printVarSummary(var)
>>     printMinMax(var,0)
>>
>>   plot = gsn_csm_contour_map(wks, var, res)
>>
>> ===
>>
>>
>> Also, as an experiment, you might try a run with
>>
>>
>> *res at cnFillMode <https://www.ncl.ucar.edu/Document/Graphics/Resources/cn.shtml#cnFillMode>* = "RasterFill"
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> On Wed, Sep 16, 2015 at 8:37 AM, Mariama Barr - Dallas <bama4 at umbc.edu>
>> wrote:
>>
>>> Well I have contour levels set at a min of 375 and a max of 425 and the
>>> spacing is 10.0 and it still gives an algorithm failure error. I will try
>>> and increase the spacing to see if it works but I really want as small
>>> spacing as possible so that I can see smaller variations of the data in the
>>> map.
>>>
>>> On Wed, Sep 16, 2015 at 10:32 AM, Rick Brownrigg <brownrig at ucar.edu>
>>> wrote:
>>>
>>>> Hi,
>>>>
>>>> There would be a practical limit based upon your machine. Did you try
>>>> intermediate values between 100M and 10G?  How about Adam's suggestion of
>>>> explicitly setting contour levels -- trying something fairly coarse and
>>>> then dialing it back in until things fail.  There's obviously something
>>>> about the data that's requiring extreme amounts of workspace memory -- but
>>>> its hard to say what without some sleuthing...
>>>>
>>>> Rick
>>>>
>>>>
>>>> On Wed, Sep 16, 2015 at 8:17 AM, Mariama Barr - Dallas <bama4 at umbc.edu>
>>>> wrote:
>>>>
>>>>> Yes, I also tried adjusting the space allocated in the .hluresfile
>>>>> file from  100000000 to 10000000000. It gives an algorithm error. any
>>>>> extreme allocatons gives a segmentation dump so I assume that there is a
>>>>> reasonable limit to the amount that can be allocated to the ncarg graphics?
>>>>>
>>>>> On Tue, Sep 15, 2015 at 7:22 PM, Mary Haley <haley at ucar.edu> wrote:
>>>>>
>>>>>> Adam's suggestions were good ones.  If you are trying to plot the
>>>>>> entire globe, then try cutting back back on the number of contour levels
>>>>>> too, if you are explicitly setting them.
>>>>>>
>>>>>> --Mary
>>>>>>
>>>>>>
>>>>>> On Mon, Sep 14, 2015 at 12:47 PM, Mariama Barr - Dallas <
>>>>>> bama4 at umbc.edu> wrote:
>>>>>>
>>>>>>> I am using NCL version 6.2.1. I commented those out because I was
>>>>>>> using them previously to zoom in on a certain longitude and latitude but
>>>>>>> right now I want to display the entire globe.
>>>>>>>
>>>>>>> On Mon, Sep 14, 2015 at 1:44 PM, Dennis Shea <shea at ucar.edu> wrote:
>>>>>>>
>>>>>>>> Before the plot = ..
>>>>>>>>
>>>>>>>>    printVarSummary(var)
>>>>>>>>    printMinMax(var,0)
>>>>>>>>
>>>>>>>> Why did you comment out the mpMinLatF, etc resources?
>>>>>>>>
>>>>>>>> Please always include this information when sending questions to
>>>>>>>> ncl-talk.
>>>>>>>>
>>>>>>>> Also ... the version of NCL you are using.
>>>>>>>>
>>>>>>>> ncl -V
>>>>>>>>
>>>>>>>> ==========
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> On Mon, Sep 14, 2015 at 9:15 AM, Adam Phillips <asphilli at ucar.edu>
>>>>>>>> wrote:
>>>>>>>>
>>>>>>>>> Hi Mariama,
>>>>>>>>> My guess is that you have either a very high resolution grid
>>>>>>>>> and/or a very noisy data array, and NCL is warning you that the output
>>>>>>>>> graphic is exceeding the maximum size that is set.
>>>>>>>>>
>>>>>>>>> See the FAQ page here:
>>>>>>>>> http://www.ncl.ucar.edu/FAQ/#err_msgs_012
>>>>>>>>>
>>>>>>>>> The solutions are:
>>>>>>>>> 1) Increase your work station size as the FAQ describes.
>>>>>>>>> 2) Change your contour settings. If it would be better to set
>>>>>>>>> non-regular levels you can set cnLevelSelectionMode = "ExplicitLevels" and
>>>>>>>>> set cnLevels to   (/200,300,340,380,420,460,500/)  (Those levels are a
>>>>>>>>> complete guess.)
>>>>>>>>> 3) If it is a very high resolution grid you can try plotting every
>>>>>>>>> other point or every third point using ::2 or ::3 syntax.
>>>>>>>>>
>>>>>>>>> If none of those solutions help please let the ncl-talk email list
>>>>>>>>> know.
>>>>>>>>> Adam
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On Mon, Sep 14, 2015 at 8:46 AM, Mariama Barr - Dallas <
>>>>>>>>> bama4 at umbc.edu> wrote:
>>>>>>>>>
>>>>>>>>>> Hello,
>>>>>>>>>> Everytime I try to manually set the contour spacing to a value
>>>>>>>>>>  40.0 and below, I get a
>>>>>>>>>> "fatal:ContourPlotDraw: Workspace reallocation would exceed
>>>>>>>>>> maximum size 100000000" error. Below is my code:
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> ​
>>>>>>>>>> --
>>>>>>>>>> Mariama Barr-Dallas
>>>>>>>>>> Meyerhoff Scholar/ NSA Scholar M23
>>>>>>>>>> Computer Science Major, History Major
>>>>>>>>>> University of Maryland Baltimore County
>>>>>>>>>> Class of 2015
>>>>>>>>>>
>>>>>>>>>> _______________________________________________
>>>>>>>>>> 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>
>>>>>>>>>
>>>>>>>>> _______________________________________________
>>>>>>>>> ncl-talk mailing list
>>>>>>>>> ncl-talk at ucar.edu
>>>>>>>>> List instructions, subscriber options, unsubscribe:
>>>>>>>>> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> Mariama Barr-Dallas
>>>>>>> Meyerhoff Scholar/ NSA Scholar M23
>>>>>>> Computer Science Major, History Major
>>>>>>> University of Maryland Baltimore County
>>>>>>> Class of 2015
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> ncl-talk mailing list
>>>>>>> ncl-talk at ucar.edu
>>>>>>> List instructions, subscriber options, unsubscribe:
>>>>>>> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>>>>>>>
>>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> Mariama Barr-Dallas
>>>>> Meyerhoff Scholar/ NSA Scholar M23
>>>>> Computer Science Major, History Major
>>>>> University of Maryland Baltimore County
>>>>> Class of 2015
>>>>>
>>>>> _______________________________________________
>>>>> ncl-talk mailing list
>>>>> ncl-talk at ucar.edu
>>>>> List instructions, subscriber options, unsubscribe:
>>>>> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>>>>>
>>>>>
>>>>
>>>
>>>
>>> --
>>> Mariama Barr-Dallas
>>> Meyerhoff Scholar/ NSA Scholar M23
>>> Computer Science Major, History Major
>>> University of Maryland Baltimore County
>>> Class of 2015
>>>
>>> _______________________________________________
>>> ncl-talk mailing list
>>> ncl-talk at ucar.edu
>>> List instructions, subscriber options, unsubscribe:
>>> http://mailman.ucar.edu/mailman/listinfo/ncl-talk
>>>
>>>
>>
>
>
> --
> Mariama Barr-Dallas
> Meyerhoff Scholar/ NSA Scholar M23
> Computer Science Major, History Major
> University of Maryland Baltimore County
> Class of 2015
>



-- 
Mariama Barr-Dallas
Meyerhoff Scholar/ NSA Scholar M23
Computer Science Major, History Major
University of Maryland Baltimore County
Class of 2015
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