[GRASS-user] How to add labels to raster non-interactively?
Rainer M Krug
Rainer+grass at krugs.de
Mon Oct 8 02:37:06 EDT 2007
Glynn Clements wrote:
> Rainer M Krug wrote:
>
>>>> I have a raster which has very large cell values (>10^10) which I can
>>>> not store in the grid directly.
>>> Do you have to use integers? A DCELL (double-precision floating point)
>>> map can store integers up to 2^53 (~10^16) exactly.
>> No - I don'y have to use integers - DCELL would be fine as well. but how
>> can I change the format? The raster is created from an imported shape file.
>> In a second step I want to use r.reclass() to create the second raster
>> which holds the large cell values. Can I specify in r.reclass() that the
>> cell values should be stored as DCELL?
>
> No, at present, reclass maps are restricted to integers.
That's a pitty - it would be nice to have an option to specify that the
reclassified raster map holds floats instead.
>
> But, if you're creating a reclass map, you can use r.reclass to set
> the category labels when the map is created.
Thanks - how could I have missed that? I read the manual page several
times...
>
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