[GRASS-user] v.out.ogr to KML ERROR 1: Latitude is invalide

[Moritz Lennert]

On 19/06/09 04:40, maven apache wrote:
> This is a vector layer transfered from a raster and its general info can 
> be seen as follows:
> +----------------------------------------------------------------------------+
>  | Layer:           swi_0 at PERMANENT                                     
>       
>  | Mapset:          PERMANENT                                           
>       
>  | Location:        newlocation                                         
>      
>  | Database:        D:/GrassDataBase                                     
>      
>  | Title:                                                               
>       
>  | Map scale:       1:1                                                 
>       
>  | Map format:      native                                               
>      
>  | Name of creator: Administrator                                       
>       
>  | Organization:                                                         
>      
>  | Source date:     Thu Jun 18 20:51:48 2009                             
>      
>  |----------------------------------------------------------------------------
>  |   Type of Map:  vector (level: 2)                                     
>      
>  |                                                                       
>      
>  |   Number of points:       0               Number of areas:      88   
>       
>  |   Number of lines:        0               Number of islands:    79   
>       
>  |   Number of boundaries:   229             Number of faces:      0     
>      
>  |   Number of centroids:    84              Number of kernels:    0     
>      
>  |                                                                       
>      
>  |   Map is 3D:              0                                           
>      
>  |   Number of dblinks:      1                                           
>      
>  |                                                                       
>      
>  |         Projection: Universe Transverse Mercator (zone 0)             
>      
>  |               N:  2762370.84493965    S:  2668889.78644383           
>       
>  |               E:   636604.74247833    W:   592287.35339113           
>       
>  |                                                                       
>      
>  |   Digitization threshold: 0                                           
>      
>  |   Comments:                                                           
>      
>  |                                                                       
>      
>  +----------------------------------------------------------------------------+
> then I want to export it to kml and add it to the google earth, I use 
> the commond:
> g.region vect=swi_blue at PERMANENT 
> v.out.ogr input=swi_blue at PERMANENT type=area dsn=d:/blueNew.kml layer=1 
> format=KML
> and I got the errors:
> ---------------------------------------------------------------
> arning 1: Layer name 'swi_blue at PERMANENT' adjusted to 
> 'swi_blue_PERMANENT' for XML validity.
> 
> Exporting 4893 areas (may take some time) ...
> ERROR 1: Latitude 2764980.037140 is invalid. Valid range is [-90,90]. 
> This warning will not be issued any more
> Warning 1: Longitude 638073.992861 has been modified to fit into range 
> [-180,180]. This warning will not be issued any more
> 
> 
> 
> 9259 features written
> 
> 4476 features without category written
> ----------------------------------------------------------------
> it seems that there is something wrong with the Coordinate,but  Latitude 
> 2764980.037140 is the same with the general info from the command v.info 
> <http://v.info> map=''''''.
> I wonder it is my problem or the grass?

On the KML page of OGR it says: "Note that KML by specification uses 
only a single projection, EPSG:4326" [1]

It also says "As such OGR will create layers in the correct coordinate 
system and transform any geometries."

Not sure how to interpret this, but from your error message, I would 
guess that you have to reproject your vector to a epsg:4326 location 
first, before exporting with v.out.ogr.

Moritz

[1]http://www.gdal.org/ogr/drv_kml.html