[GRASS-user] Scripting i.ortho.photo

[Andy Harfoot]

Hamish wrote:
> Andy Harfoot wrote:
>> Unfortunately photo.rectify is interactive still so I think there's 
>> modification to the code required before it can be executed using 
>> parameters alone.
> 
> in photo.rectify, is it just the setting of the corresponding output map
> names which is needed before the calculation begins, or is there more
> to fill in past that first screen?
> 

There are two sets of inputs - the output map names, and subsequently, 
the output region definition, with a choice between using the existing 
or one calculated using the rectification parameters (with the option to 
edit it). I guess that this could be simplified to a parameter choosing 
between using the existing region (which could be set prior to the 
rectification) or the calculated 'minimal' region, using the existing code.

> 
>> I think photo.rectify is the key as all the other elements of the 
>> i.ortho.photo sequence generate text files in the group directory to 
>> store the parameters, and these could be created independently
> 
> so that's the only one that takes much computational time right?
> 

Yes.

I hope that helps - I'm currently using the GRASS 6.3 binaries in 
Cygwin. Is it naive to assume that I can compile your updated 
i.ortho.photo code and drop it into my 6.3 install?

Cheers,

Andy

-- 
Andy Harfoot

GeoData Institute
University of Southampton
Southampton
SO17 1BJ

Tel:  +44 (0)23 8059 2719
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www.geodata.soton.ac.uk