[GRASS-dev] Standard option identifiers

[Markus Metz]

On Tue, Nov 1, 2016 at 2:10 AM, pablo zader <pzader at gmail.com> wrote:
> Hi list
>
> I'm developing some script in "grass gis", and I have some doubt that the
> documentation will not answer me
> (https://grass.osgeo.org/programming7/gis_8h.html)
>
> What is the diference betwen G_OPT_R_INPUT  and G_OPT_R_MAP ?

The key for G_OPT_R_INPUT is "input", while the key for G_OPT_R_MAP is
"map". Typically, you would use G_OPT_R_INPUT if the module also has
an output option and G_OPT_R_MAP if the module does not have an output
option, e.g. r.info.

HTH,

Markus M

>
> if I have a geoprocess has two input raster layers, which of these two
> options standares I use to define these inputs?
>
> Another related question: what are the values that support the keyword
> "type" in the definition of the head of the code?
>
> In my example, I implemented a script with python scripting library, it
> takes two raster layers as inputs and outputs a raster layer.
> The defintion header is:
>
> option: G_OPT_R_INPUT
> type : string
>
> option: G_OPT_R_INPUT
> type : string
>
> It is correct?
>
> Or, the correct is:
>
> option: G_OPT_R_INPUT
> type : raster
>
> option: G_OPT_R_INPUT
> type : raster
>
> Thanks in advanced
>
>
> --
> Pablo J. Zader
> Universidad Nacional de Córdoba
> GIS and remote sensing developer
> --
> Lic. en Cs. de la Computación
> Mgtr. Aplicaciones en Espaciales de Alerta y Respuesta Temprana a
> Emergencias
> --
> pablo.zader at gmail.com
>
> "Los Grandes Hombres hablan sobre ideas...
>  Los Hombres Promedio hablan sobre cosas...
>  Los Hombres Pequeños hablan.. de otros Hombres.
>
> del libro Matemática estas ahi? A. Paenza "
>
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