#1057: r.slope.aspect: add -c option
----------------------------+-----------------------------------------------
Reporter: paoloC | Owner: grass-dev@…
Type: enhancement | Status: new
Priority: normal | Milestone: 7.0.0
Component: Raster | Version: svn-trunk
Keywords: r.slope.aspect | Platform: Unspecified
Cpu: Unspecified |
----------------------------+-----------------------------------------------
Comment(by hamish):
see code in addons/grass6/display/d.barb/main.c
{{{
type_opt = G_define_option();
type_opt->key = "aspect_type";
type_opt->type = TYPE_STRING;
type_opt->required = NO;
type_opt->answer = "cartesian";
type_opt->options = "cartesian,compass";
type_opt->description = _("Direction map aspect type");
}}}
{{{
/* aspect flavours */
#define TYPE_GRASS 0
#define TYPE_COMPASS 1
...
if (strcmp(type_opt->answer, "compass") == 0)
aspect_type = TYPE_COMPASS;
else
aspect_type = TYPE_GRASS;
...
angle = (aspect_type == TYPE_GRASS ? theta : 90 - theta);
}}}
Hamish
--
Ticket URL: <https://trac.osgeo.org/grass/ticket/1057#comment:4>
GRASS GIS <http://grass.osgeo.org>
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