[R-sig-Geo] 3d surface plot of large data

Alexander.Herr at csiro.au Alexander.Herr at csiro.au
Thu Dec 14 05:00:07 CET 2006

Dear list,

I am trying to plot a grid with an overlayed height. I have a dataframe
with four variables:
x,y,gridvalue,height. The dataframe has 2.5mio observations (ie grid

I assign colors through the gridvalue using map_color_gradient thus
x,y,gridvalue,height,gridcol as variables of the dataframe.

My attempts with surface3d fail, mainly because I cannot produce the
matrix required for the height input. 

Any ideas/help appreciated

Dr Alexander Herr
Spatial and statistical analyst
CSIRO, Sustainable Ecosystems
Davies Laboratory,
University Drive, Douglas, QLD 4814 
Private Mail Bag, Aitkenvale, QLD 4814
(07) 4753 8510; 4753 8650(fax)
Home: http://herry.ausbats.org.au
Webadmin ABS: http://ausbats.org.au
Sustainable Ecosystems: http://www.cse.csiro.au/

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