[MITgcm-support] tsearch

[Martin Losch]

Hi Yuan,

thanks, I just checked in a new version, I prefer to not use your solution with verLessThan, because that function hasn't been around forever either, instead I look for DelaunayTri and use it if available (assuming that if it is not available, your matlab is so old that it still has tsearch).

Martin

On Jul 9, 2013, at 8:38 PM, Yuan Lian <lian at ashimaresearch.com> wrote:

> Hi Martin,
> 
> Here is the version that may be checked into the repository. I also added a version check in case someone is using a older version of matlab. Please note that I assumed version 7.14 or later removed tsearch.
> 
> Best,
> Yuan
> 
> 
> On 7/9/13 12:20 AM, Martin Losch wrote:
>> Hi Angela,
>> 
>> could you send me a working version of the matlab-script (preferably with the not-working code lines commented out followed by the new code lines)? I could then check this into the repository.
>> 
>> Martin
>> 
>> On Jul 9, 2013, at 2:11 AM, Angela Zalucha <azalucha at seti.org> wrote:
>> 
>>> Thanks, that did work.
>>> 
>>>  Angela
>>> 
>>> _-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_
>>> Angela Zalucha, Ph.D.
>>> Research Scientist
>>> Search for Extraterrestrial Intelligence (SETI) Institute
>>> 
>>> 
>>> Office located at Southwest Research Institute
>>> 1050 Walnut Street, Suite 300
>>> Boulder, CO 80302
>>> USA
>>> (720) 208-7211
>>> 
>>> 
>>> http://www.seti.org/users/azalucha
>>> _-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_
>>> 
>>> On Mon, 8 Jul 2013, Yuan Lian wrote:
>>> 
>>>> Hi Angela,
>>>> 
>>>> You can replace tsearch line with the following:
>>>> 
>>>> %%%%%% the following only works for matlab version 2012 or later.
>>>> % Triangularize the data
>>>> tri=DelaunayTri(x,y);
>>>> if isempty(tri),
>>>> warning('Data cannot be triangulated.');
>>>> return
>>>> end
>>>> 
>>>> % Find the nearest triangle (t)
>>>> [t, bcs] = pointLocation(tri, xi, yi);
>>>> 
>>>> %%%%%%
>>>> 
>>>> Hope this helps.
>>>> 
>>>> Best,
>>>> Yuan
>>>> 
>>>> 
>>>> On 7/8/13 3:12 PM, Angela Zalucha wrote:
>>>>> Yes, I have found this page:
>>>>> http://www.mathworks.com/matlabcentral/fileexchange/authors/251793
>>>>> But I don't know what "p" corresponds to in griddata_preprocess.m, as it is a black box to me.
>>>>> 
>>>>>  Angela
>>>>> _-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_
>>>>> Angela Zalucha, Ph.D.
>>>>> Research Scientist
>>>>> Search for Extraterrestrial Intelligence (SETI) Institute
>>>>> Office located at Southwest Research Institute
>>>>> 1050 Walnut Street, Suite 300
>>>>> Boulder, CO 80302
>>>>> USA
>>>>> (720) 208-7211
>>>>> http://www.seti.org/users/azalucha
>>>>> _-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_
>>>>> On Mon, 8 Jul 2013, Menemenlis, Dimitris (3248) wrote:
>>>>>> Angela you are right, tsearch has been replaced by DelaunayTri function in recent matlab.
>>>>>> You could try replacing tsearch with DelaunayTri function in griddata_preprocess.m
>>>>>> But this routine is not needed for reading MITgcm files.
>>>>>> It is used for computing interpolation weights.
>>>>>> Dimitris Menemenlis
>>>>>> On Jul 8, 2013, at 5:50 PM, Angela Zalucha wrote:
>>>>>>> Hi,
>>>>>>> I am running Matlab 2013a and I am unable to read in any files due to a Matlab function that is no longer supported, tsearch.  This function is called in the mitgcm-provided script griddata_preprocess.m.  I checked the repository and there is no update there.  Has anyone fixed this problem?
>>>>>>> 
>>>>>>> Angela
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