[R-sig-Geo] plotting bathymetric data?

[Rodrigo Plei]

Dear people,

I have a shapefile with the contour of the coast line and bathymetric data
from 100 to 500 m.

I would like to use maptools package to plot the coastline as continuous
contour and the bathymetries as dashed lines.

I tried to subset only the bathymetries from the original shapefile and
convert them in new shapefile using the function "writeSpatialShape"
without success.

Does anyone known how I can do that?

Any help will be deeply appreciated.

Cheers,

Rodrigo

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Prof. Dr. Rodrigo Silvestre Martins

Universidade Federal de São Paulo
Instituto do Mar
Campus Baixada Santista
Rua Dr. Carvalho de Mendonça, 144
Encruzilhada, 11070100, Santos, SP - Brasil
Tel: + 55  13 3229-0365

http://www.unifesp.br/campus/san7/
<http://www.unifesp.br/campus/san7/graduacao/cursos/bacharelado-interdisciplinar-em-ciencia-e-tecnologia-do-mar>

Email: rodrigo.plei at gmail.com ; ocersm at lycos.com; rsmartins at usp.br;
rsmartins at unifesp.br
CV Lattes: http://lattes.cnpq.br/5350064124902777
Google Scholar:
http://scholar.google.com.br/citations?user=zX_EezEAAAAJ&hl=pt-BR
Orcid: http://orcid.org/0000-0002-9884-1515
Research Gate: https://www.researchgate.net/profile/Rodrigo_Martins6/
<https://www.researchgate.net/profile/Rodrigo_Martins6/?ev=hdr_xprf>

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