[ncl-talk] geolocation_circle and gc_inout
Md. Jalal Uddin
dmjalal90 at gmail.com
Mon Apr 1 16:59:24 MDT 2019
Sorry, sir. I don't have the 0.0 value within 500 km. Please look at the
attached figures.
On Mon, Apr 1, 2019 at 10:14 PM Dennis Shea <shea at ucar.edu> wrote:
> [1] Save time: change *N=180* to (say) *N=90*
>
> *gc_inout* <http://www.ncl.ucar.edu/Document/Functions/Built-in/gc_inout.shtml> while written in "C" , it is not particularly 'fast'. It is best to reduce the number of points to check.
>
> [2] * *YOU*** should put timing checks into your code. This will tell you where the time is being spent. EG:
>
> beg_script = *get_cpu_time*()
> :
> :
> beg_geo_circle = *get_cpu_time*()
> circle = *geolocation_circle*(slat, slon, srad, sradu, N, optgeo) ; circle is type list
> * print*("geolocation_circle: " + (*get_cpu_time*() - beg_geo_circle)+" seconds")
> :
> :
> beg_gc_inout = *get_cpu_time*()
> latlon_circle := *gc_inout*(lat2d,lon2d, poly_lat,poly_lon)
> print("gc_inout: " + (*get_cpu_time*() - beg_gc_inout)+" seconds")
> :
> :
>
> : at end of script
>
> print("Script: Total time: " + (*get_cpu_time*() - beg_script)+" seconds")
>
> [3]
> It seems you have 0.0 in your data as both a valid value and as a missing value [_FillValue]?
> In your case, you [possibly] have 0.0 values *within* and* outside* 500km. Is that correct?
> Currently, values outside the circle are set to False by gc_inout.
> You have also, reset value 0.0 to _FillValue.
>
> If True, you will have to add code to draw a circle.
>
>
>
>
>
> On Fri, Mar 29, 2019 at 5:21 AM Md. Jalal Uddin <dmjalal90 at gmail.com>
> wrote:
>
>> In addition, the do loop is too slow. How can I make it faster?
>>
>> On Fri, Mar 29, 2019 at 5:04 PM Md. Jalal Uddin <dmjalal90 at gmail.com>
>> wrote:
>>
>>> Thank you, sir, for your kind help. I was able to mask data for multiple
>>> cyclone's centres, but the figure did not show the whole circle data
>>> (circle_mar.png). I attached the output figure and code in the attachment.
>>> Could I have your kind suggestion?
>>>
>>>
>>> On Fri, Mar 29, 2019 at 11:35 AM Dennis Shea <shea at ucar.edu> wrote:
>>>
>>>> Please see examples 29 and 30 at:
>>>>
>>>> *https://www.ncl.ucar.edu/Applications/polyg.shtml*
>>>> <https://www.ncl.ucar.edu/Applications/polyg.shtml>
>>>>
>>>> On Thu, Mar 28, 2019 at 2:54 AM Md. Jalal Uddin <dmjalal90 at gmail.com>
>>>> wrote:
>>>>
>>>>> Hi all,
>>>>>
>>>>> Could anyone give me the idea to mask rainfall data for multiple
>>>>> circles? geolocation_circle produce ''circle_lat and lon'' that is 3
>>>>> dimensions, but the data lat and lon 1 dimension.
>>>>>
>>>>> How can be used gc_inout to mask the data inside multiple circles?
>>>>> Please look at the multiple circle's figures in the attached file.
>>>>>
>>>>> Any help would be appreciated.
>>>>>
>>>>> Variable: circle_lat
>>>>> Type: float
>>>>> Total Size: 10800 bytes
>>>>> 2700 values
>>>>> Number of Dimensions: 3
>>>>> Dimensions and sizes: [location | 15] x [radii | 1] x [circle | 180]
>>>>> Coordinates:
>>>>> Number Of Attributes: 7
>>>>> _FillValue : 9.96921e+36
>>>>> radii_input_units : km
>>>>> radii_input_values : 500
>>>>> radii_converted_units : great_circle_degrees
>>>>> radii_converted_values : 4.522022
>>>>> long_name : circle latitudes
>>>>> units : degrees_north
>>>>>
>>>>> Variable: circle_lon
>>>>> Type: float
>>>>> Total Size: 10800 bytes
>>>>> 2700 values
>>>>> Number of Dimensions: 3
>>>>> Dimensions and sizes: [location | 15] x [radii | 1] x [circle | 180]
>>>>> Coordinates:
>>>>> Number Of Attributes: 7
>>>>> _FillValue : 9.96921e+36
>>>>> radii_converted_values : 4.522022
>>>>> radii_converted_units : great_circle_degrees
>>>>> radii_input_values : 500
>>>>> radii_input_units : km
>>>>> long_name : circle longitudes
>>>>> units : degrees_east
>>>>>
>>>>> --
>>>>> *Md. Jalal Uddin*
>>>>> MSc in Applied Meteorology (English Language)
>>>>> Nanjing University of Information, Science and Technology, China
>>>>> B.Sc. in Disaster Management (Hons.)
>>>>> Patuakhali Science and Technology University, Bangladesh.
>>>>> Cell: +8613260859092, +8801792052662
>>>>> Web: www.dmjalal90.weebly.com
>>>>> Facebook: jalal.hossen.39
>>>>> LinkedIn: https://bd.linkedin.com/in/md-jalal-uddin-80a026b0
>>>>> Twitter: dmjalal90
>>>>> Skype: dmjalal90
>>>>> _______________________________________________
>>>>> ncl-talk mailing list
>>>>> ncl-talk at ucar.edu
>>>>> List instructions, subscriber options, unsubscribe:
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>>>>>
>>>>
>>>
>>> --
>>> *Md. Jalal Uddin*
>>> MSc in Applied Meteorology (English Language)
>>> Nanjing University of Information, Science and Technology, China
>>> B.Sc. in Disaster Management (Hons.)
>>> Patuakhali Science and Technology University, Bangladesh.
>>> Cell: +8613260859092, +8801792052662
>>> Web: www.dmjalal90.weebly.com
>>> Facebook: jalal.hossen.39
>>> LinkedIn: https://bd.linkedin.com/in/md-jalal-uddin-80a026b0
>>> Twitter: dmjalal90
>>> Skype: dmjalal90
>>>
>>
>>
>> --
>> *Md. Jalal Uddin*
>> MSc in Applied Meteorology (English Language)
>> Nanjing University of Information, Science and Technology, China
>> B.Sc. in Disaster Management (Hons.)
>> Patuakhali Science and Technology University, Bangladesh.
>> Cell: +8613260859092, +8801792052662
>> Web: www.dmjalal90.weebly.com
>> Facebook: jalal.hossen.39
>> LinkedIn: https://bd.linkedin.com/in/md-jalal-uddin-80a026b0
>> Twitter: dmjalal90
>> Skype: dmjalal90
>>
>
--
*Md. Jalal Uddin*
MSc in Applied Meteorology (English Language)
Nanjing University of Information, Science and Technology, China
B.Sc. in Disaster Management (Hons.)
Patuakhali Science and Technology University, Bangladesh.
Cell: +8613260859092, +8801792052662
Web: www.dmjalal90.weebly.com
Facebook: jalal.hossen.39
LinkedIn: https://bd.linkedin.com/in/md-jalal-uddin-80a026b0
Twitter: dmjalal90
Skype: dmjalal90
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