[GRASS-dev] terminology fixes in GRASS

Helena Mitasova hmitaso at unity.ncsu.edu
Wed Dec 13 13:04:44 EST 2006


Markus,

although I suggested the change, when I browsed the man pages for the 
context
how this terminology is used, there are few instances
where raster file may be justified - for example if you are importing
an external raster file by r.in.* to create GRASS raster map,
although increasingly also the raster to be imported would have multiple
files so then raster map would be OK.

In general, when making this change it is good to
check whether there may be a reason for having a file rather
map to distiguish between a raster stored in a single file rather
than multiple files or there may be some other reason too
that I might have missed.
Maybe some users could check the updated man pages to see
whether the change raster map might have caused a problem.

For 3d we should probably use 3D raster map to be consistent.
Just an explanation - in literature grid is used for raster that
represents continuous field and the value is applied to the point
and you need interpolation to resample, raster would be image
or discrete geometry (e.g. land cover, soils) where we have cats
associated with pixel (area) and you use nearest neighbor to resample.
Most volume data would be continuous
3D field, that is why the grid was used.
But I think that for manuals and help we are fine with calling everything
raster and 3d raster as we don't need to make the terminology
more complicated for users than it already is.

Helena


Markus Neteler wrote:
> Hi,
>
> I have made a global fix to terminology in GRASS for consistency.
> This basically affects messages, some comments and the HTML 
> pages:
>
>  raster file(s) -> raster map(s)
>  vector file(s) -> vector map(s)
>
> The same thing should be done now for raster3d where
> we have a mixture of
> 3d grid file
> 3d grid map
> 3d cell
> ...
>
> What's your suggestion for this?
>
> Markus
>
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> grass-dev at grass.itc.it
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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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