[Portugal] CRS com mais de 2 eixos (axis)

[Jorge de Jesus]

 Obrigado pela resposta
 
O EPSG:4978 tem a estrutura WKT que estava mais ao menos a procura :)

Obrigado pela referencia

Jorge 



On 04/04/11 18:48, Jose Gonçalves wrote:
> Caro Jorge
>
> Tradicionalmente os sistemas de referenciação geográfica separam a
> componente planimétrica, referida a um elipsóide, da altimétrica,
> referida ao geóide (ou melhor, ao nível do mar num dado local). As
> transformações de coordenadas são feitas separadamente.
>
> Os códigos EPSG que são exportados para a lista incluída no PROJ.4,
> que são os usados por muitas aplicações, são mesmo só 2D. Contudo, a
> base de dados EPSG (http://www.epsg.org/CurrentDB.html) também inclui
> sistemas altimétricos, mas separados dos sistemas planimétricos. Por
> exemplo o datum Cascais é o EPSG:5780
> (http://spatialreference.org/ref/epsg/5780/).
>
> Os sistemas de coordenadas cartesianas terrestres é que são de facto
> 3D, como é o caso do WGS84 (EPSG:4978) ou dos ITRF. Apesar de não
> fazerem parte da lista exportada para o PROJ, podem ser usados com a
> opção +proj=geocent, no comando cs2cs.
>
> Cumprimentos
>
> José Alberto Gonçalves
>
>
>
>
> 2011/3/31 Jorge de Jesus <jmdj at pml.ac.uk <mailto:jmdj at pml.ac.uk>>
>
>      Bons dias
>
>     Necessito de uma indicacao relacionada com CRS (coordinate reference
>     system) , a maior parte dos sistemas usa 2D (x,y) eu estava a
>     procura de
>     um CRS que seja 1D, 3D,  4D ou mais?
>
>
>     Alguem pode indicar-me um codigo EPGS ?!
>
>     Obrigado
>
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Plymouth Marine Laboratory
 
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Website: www.pml.ac.uk
Click here for PML Annual Review 2010
Registered Charity No. 1091222
PML is a company limited by guarantee
registered in England & Wales
company number 4178503

Please think before you print

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