[OSGeo-Discuss] C++ library for "gridding"

Paul Ramsey pramsey at refractions.net
Thu Oct 19 16:50:05 PDT 2006


That's great news! Is this work being done in the GRASS CVS? On a  
branch?

P

On 19-Oct-06, at 4:28 PM, Venkatesh Raghavan wrote:

> Hi All,
>
> Our colleagues in China have informed that they are
> working on modifying GRASS commands for data
> processing and analysis to C-API functions.
>
> Perhaps, Helana and others would work together
> or support Prof. Chen in speeding up development
> of the GRASS C-API.
>
> Regards
>
> Venka
>
> Paul Ramsey wrote:
>> I'll admit to interest, but can't really help. I would like to  
>> eventually add raster analytics to PostGIS, and hopefully do so  
>> through library linking rather than actually implementing the  
>> features in the core PostGIS code.  It would be nice to have a  
>> common library to work on this stuff in.
>> P
>> On 19-Oct-06, at 10:09 AM, Helena Mitasova wrote:
>>> If anybody is interested in developing general library for gridding
>>> that would include some of the standard methods and at the same time
>>> allow easy implementation of new functions, I will be happy to help.
>>> Our original intention with the RST modules in GRASS was to  
>>> create such
>>> library(including 2D, 3D and 4D) but I had to move on to erosion  
>>> modeling
>>> before it could be finished - so whatever we have done is now  
>>> scattered in
>>> the GRASS modules.
>>>
>>> Helena
>>>
>>> Markus Neteler wrote:
>>>> Hi,
>>>>
>>>> we are working on the SWIG interface to solve that to some
>>>> extend. A major rewrite is the alternative :-)
>>>>
>>>> Markus
>>>>
>>>> PS: See
>>>> http://grass.gdf-hannover.de/wiki/GRASS_and_Python
>>>> http://grass.gdf-hannover.de/wiki/GRASS_and_PHP
>>>> http://grass.gdf-hannover.de/wiki/GRASS_and_Shell
>>>>
>>>> On 10/18/06, Paul Ramsey <pramsey at refractions.net> wrote:
>>>>> Yes, unfortunately the algorithmic goodness of GRASS is scattered
>>>>> throughout the program executables rather than consolidated in a
>>>>> library.
>>>>>
>>>>> On 18-Oct-06, at 2:37 AM, Rob Agar wrote:
>>>>>
>>>>> > Jachym Cepicky wrote:
>>>>> >> as Frank pointed out, GRASS is the tool you are searching  
>>>>> for. GRASS
>>>>> >> has no direct support for Kriging, but it is possible to  
>>>>> provide this
>>>>> >> via R package or gstat.
>>>>> >> GRASS's modul v.surf.rst is the module, which works for most  
>>>>> data the
>>>>> >> best. See [1] for details.
>>>>> >
>>>>> > That great, but ideally I'm after a directly programmable  
>>>>> interface
>>>>> > (as opposed to a command line program).  GRASS is an application
>>>>> > rather than a library isn't it?
>>>>> >
>>>>> > Rob
>>>>> >
>>>>> >  
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>>>>>
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>>>>>
>>>>
>>>>
>>>
>>>
>>> --Helena Mitasova
>>> Department of Marine, Earth and Atmospheric Sciences
>>> North Carolina State University
>>> 1125 Jordan Hall
>>> NCSU Box 8208
>>> Raleigh, NC 27695-8208
>>> http://skagit.meas.ncsu.edu/~helena/
>>>
>>> email: hmitaso at unity.ncsu.edu
>>> ph: 919-513-1327 (no voicemail)
>>> fax 919 515-7802
>>>
>>>
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