[GRASS-dev] r.proj produces null map

Margherita Di Leo diregola at gmail.com
Mon May 18 08:36:23 PDT 2015


[forgot the list ]

On Mon, May 18, 2015 at 8:35 AM, Margherita Di Leo <diregola at gmail.com>
wrote:

>
>
> On Mon, May 18, 2015 at 8:18 AM, Martin Landa <landa.martin at gmail.com>
> wrote:
>
>>
>>
>> are you sure that you have set in destination location region
>> correctly? See r.proj's -g flag.
>>
>
> I think so, unless I can't see the obvious... here's an example
>
> r.proj -g input=accum location=GMTED2010-wgs84
> mapset=res075
> n=3036289.28490875 s=1327842.48956189 w=3859987.52509802
> e=5240836.36134497 rows=7200 cols=7200
>
> the region in the destination mapset is
> g.region -p
> projection: 99 (Lambert Azimuthal Equal Area)
> zone:       0
> datum:      etrs89
> ellipsoid:  grs80
> north:      3036500
> south:      1327500
> west:       3859750
> east:       5241000
> nsres:      250
> ewres:      250
> rows:       6836
> cols:       5525
> cells:      37768900
>
>
> r.proj input=accum location=GMTED2010-wgs84 mapset=res075 output=acc_prova
> method=nearest
>
> Input:
> Cols: 7202 (7200)
> Rows: 7200 (7200)
> North: 49.999861 (49.999861)
> South: 34.999861 (34.999861)
> West: 364.995694 (4.999861)
> East: 379.999861 (19.999861)
> EW-res: 0.002083
> NS-res: 0.002083
>
> Output:
> Cols: 5524 (5525)
> Rows: 6834 (6836)
> North: 3036250.000000 (3036500.000000)
> South: 1327750.000000 (1327500.000000)
> West: 3859750.000000 (3859750.000000)
> East: 5240750.000000 (5241000.000000)
> EW-res: 250.000000
> NS-res: 250.000000
>
> Allocating memory and reading input raster map...
> Projecting...
> r.proj complete.
>
>
> r.info acc_prova
>
>  +----------------------------------------------------------------------------+
>  | Map:      acc_prova                      Date: Mon May 18 08:26:37
> 2015    |
>  | Mapset:   wetness-idx                    Login of Creator:
> user            |
>  | Location:
> GMTED2010-LAEA                                                   |
>  | DataBase:
> /home/user/GIS/grassdata                                         |
>  | Title:     ( acc_prova
> )                                                   |
>  | Timestamp:
> none                                                            |
>
>  |----------------------------------------------------------------------------|
>  |
> |
>  |   Type of Map:  raster               Number of Categories:
> 0               |
>  |   Data Type:
> DCELL                                                      |
>  |   Rows:
> 6834                                                       |
>  |   Columns:
> 5524                                                       |
>  |   Total Cells:
> 37751016                                                   |
>  |        Projection: Lambert Azimuthal Equal
> Area                            |
>  |            N:    3036250    S:    1327750   Res:
> 250                     |
>  |            E:    5240750    W:    3859750   Res:
> 250                     |
>  |   Range of data:    min = -nan  max =
> -nan                                 |
>  |
> |
>  |   Data
> Description:                                                        |
>  |    generated by
> r.proj                                                     |
>  |
> |
>  |
> Comments:                                                                |
>  |    r.proj input="accum" location="GMTED2010-wgs84" mapset="res075"
> outp\   |
>  |    ut="acc_prova" method="nearest"
> memory=300                              |
>  |
> |
>
>  +----------------------------------------------------------------------------+
>
>
>
>
> --
> Best regards,
>
> Dr. Margherita DI LEO
> Scientific / technical project officer
>
> European Commission - DG JRC
> Institute for Environment and Sustainability (IES)
> Via Fermi, 2749
> I-21027 Ispra (VA) - Italy - TP 261
>
> Tel. +39 0332 78 3600
> margherita.di-leo at jrc.ec.europa.eu
>
> Disclaimer: The views expressed are purely those of the writer and may not
> in any circumstance be regarded as stating an official position of the
> European Commission.
>



-- 
Best regards,

Dr. Margherita DI LEO
Scientific / technical project officer

European Commission - DG JRC
Institute for Environment and Sustainability (IES)
Via Fermi, 2749
I-21027 Ispra (VA) - Italy - TP 261

Tel. +39 0332 78 3600
margherita.di-leo at jrc.ec.europa.eu

Disclaimer: The views expressed are purely those of the writer and may not
in any circumstance be regarded as stating an official position of the
European Commission.
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