# Re: Small/Medium Circles..

From: Erick Rivera Lemus <lemus_at_nyahnyahspammersnyahnyah>
Date: Thu Sep 29 2011 - 09:09:58 MDT

I appreciate the time you guys took to explain and give me some
suggestions. I tried your methods and they work, but they do not
reflect what I want to show. Scaling is kinda tricky. So what I am
doing is to calculate from a giving lat, lon and the radius (in this
case the storm). I am calculating its exact size. It has been a good
challenge. I will like to make it into a function but I am not sure
how to do it. If you guys are familiar with Matlab there is a function
with similar function is called the scircle1. However I based my
calculations from an in-house function here at Rutgers done by John
Kerfoot that calculates the outerside position given a lat lon and

Again I appreciate the help and if you have any suggestion on how to
write it into a function will be great.

Cheers,
Erick Rafael Rivera Lemus
Software Technician
Institute of Marine and Coastal Sciences
Coastal Ocean Observation Laboratory

Rutgers, The State University of New Jersey
71 Dudley Road New Brunswick, NJ 08901

Office: 848-932-3261
Fax: 732-932-8578
Cell: 617-447-5106

On Sep 28, 2011, at 2:33 PM, David Brown wrote:

>
> I see that Adam has sent an answer concerning how to get a realistic
> size for each filled circle. I have just created an example that has
> a very crude representation of a possible hurricane track -- 3
> locations only. It modifies the example polyg_8.ncl. Your situation
> is actually simpler than polyg_8, because you basically just need to
> draw one circle at a time. So you can see that mostly I just removed
> code from the original example.
> -dave
> <track.ncl>
>
>
>
> On Sep 28, 2011, at 7:48 AM, Erick Rivera Lemus wrote:
>
>> Hi David,
>>
>> Yes I see example 8. But the data that I have is
>> lat lon and radius of isobar. The position changes as well as the
>> radius. I am not sure how to use the example since we are trying to
>> show the actual radius of the storm moving along the northeast. I
>> want to show the size of the storm. Do you have any suggestions on
>> how to do it using the example you sent me?
>>
>> Thanks.
>>
>>
>> Cheers,
>> Erick Rafael Rivera Lemus
>> Software Technician
>> Institute of Marine and Coastal Sciences
>> Coastal Ocean Observation Laboratory
>>
>> Rutgers, The State University of New Jersey
>> 71 Dudley Road New Brunswick, NJ 08901
>>
>> Office: 848-932-3261
>> Fax: 732-932-8578
>> Cell: 617-447-5106
>>
>>
>>
>>
>> <OI_MARA_2011_08_28_0300.jpg>
>>
>>
>>
>>
>>
>>
>>
>>
>> On Sep 27, 2011, at 4:53 PM, David Brown wrote:
>>
>>>
>>> For filled circles you can use poly marker index 16, or for an
>>> empty circle you can use index 4. You can control the size using
>>> gsMarkerSizeF. See http://www.ncl.ucar.edu/Applications/
>>> polyg.shtml, example 8.
>>> -dave
>>>
>>>
>>> On Sep 27, 2011, at 2:27 PM, Erick Rivera Lemus wrote:
>>>
>>>> Hello,
>>>>
>>>> I Have a question about circles. Is there a function on NCL that
>>>> is able to create circles based upon the lat, lon and radius that
>>>> you specify?
>>>>
>>>> In my example I have a map and I have a marker with constant
>>>> width for each hour. I have data that represent the range in
>>>> width due to pressure and winds. So for example when is closer to
>>>> the water I expect the width of the marker to be bigger and
>>>> smaller as it approaches closer to land. Is there any function
>>>> that shapes markers according to lat lon and radius.
>>>>
>>>> I would like to plot small or medium circles on a map that would
>>>> give us a better representation of Hurricane Irene as it made his
>>>> travel along the NE.
>>>>
>>>>
>>>> PS. I sent an image to previous email but It was hold by
>>>> moderator due to image size.
>>>>
>>>>
>>>> Cheers,
>>>> Erick Rafael Rivera Lemus
>>>> Software Technician
>>>> Institute of Marine and Coastal Sciences
>>>> Coastal Ocean Observation Laboratory
>>>>
>>>> Rutgers, The State University of New Jersey
>>>> 71 Dudley Road New Brunswick, NJ 08901
>>>>
>>>> Office: 848-932-3261
>>>> Fax: 732-932-8578
>>>> Cell: 617-447-5106
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> ncl-talk mailing list
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>>>
>>
>

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Received on Thu Sep 29 09:10:09 2011

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