[GRASS-user] problem with reprojection of Hydro1k data

[FAROUX STEPHANIE]

I did it; results are not exactly the same but it's not enough because 
gaps between continents are still more important.

FAROUX STEPHANIE wrote:
> Thank you for your answer Markus.
> I didn't read the note in the r.proj page. I will try again and then 
> we will see.
> Stéphanie
>
> Markus Neteler wrote:
>> Stéphanie,
>>
>> On Fri, Feb 13, 2009 at 2:18 PM, FAROUX STEPHANIE
>> <stephanie.faroux at meteo.fr> wrote:
>>  
>>> Hello,
>>> First i'd like to know if anybody already used the Hydro1k data from 
>>> USGS?
>>> I try to make global maps of parameters from continental ones.
>>> The initial projection is lambert azimutal equal area, with different
>>> latitude and longitude of origins for different continents. I 
>>> defined one
>>> location by continent; then i reprojected all maps in a latlon global
>>> location, with WGS84 datum.
>>> There are gaps between continents, for example between Asia and 
>>> Europe and
>>> between Europe and Africa.
>>> I wonder if the problem comes:
>>> - from the data which don't perfectly cover the earth
>>>     
>>
>> ... could be possible, I didn't try with Hydro1k data from USGS.
>>
>>  
>>> - from my reprojection in grass
>>>     
>>
>> How did you do that? Say, did you use the v.in.region trick
>> mentioned in the r.proj manual page which helps a lot?
>>
>> Markus
>>
>>   
>
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