[GRASS-user] Aspect direction in r.slope.aspect

[Nikos Alexandris]

On Sun, 2009-01-25 at 12:40 -0800, Hamish wrote:
> Doc Robinson wrote:
> > 4. What then about r.param.scale? Output is in the 0 +/- 180 range rather
> > than 0-360.
Hamish:
> I have added more metadata output to r.param.scale in trunk and develbranch6.
> testing welcome.

Hamish, I've just had a quick-run.
Regards, Nikos

>  +----------------------------------------------------------------------------+
>  | Layer:    test_latest_r.param.scale      Date: Tue Jan 27 03:42:35 2009    |
>  | Mapset:   nik                            Login of Creator: nik             |
>  | Location: hgrs87                                                           |
>  | DataBase: /geo/grassdb/peloponnese                                         |
>  | Title:    DEM terrain parameter: Direction of maximum gradient ( test_late |
>  | Timestamp: none                                                            |
>  |----------------------------------------------------------------------------|
>  |                                                                            |
>  |   Type of Map:  raster               Number of Categories: 255             |
>  |   Data Type:    DCELL                                                      |
>  |   Data Units:   degrees              Vertical datum:                       |
>  |   Rows:         1337                                                       |
>  |   Columns:      840                                                        |
>  |   Total Cells:  1123080                                                    |
>  |        Projection: Transverse Mercator                                     |
>  |            N:    4530000    S:    3861500   Res:   500                     |
>  |            E:     557500    W:     137500   Res:   500                     |
>  |   Range of data:    min = -179.944962  max = 180.000002                    |
>  |                                                                            |
>  |   Data Source:                                                             |
>  |    srtm3 at PERMANENT                                                         |
>  |                                                                            |
>  |                                                                            |
>  |   Data Description:                                                        |
>  |    generated by r.param.scale                                              |
>  |                                                                            |
>  |   Comments:                                                                |
>  |    Flow direction (aspect): W=0, E=180, N=+90, S=-90 degrees               |
>  |                                                                            |
>  |    r.param.scale input="srtm3 at PERMANENT" output="test_latest_r.param.sc\   |
>  |    ale" s_tol=1.0 c_tol=0.0001 size=3 param="aspect" exp=0.0 zscale=1.0    |
>  |                                                                            |
>  +----------------------------------------------------------------------------+