Displaying 1 result from an estimated 1 matches for "elevfile".
2006 Dec 18
2
surface3d grid from xyz dataframe
...thus
producing:
x,y,gridvalue,height,gridcol as variables of the dataframe. The grid
dimensions are 1253 x 2001 (=2507253 data points).
My attempts with surface3d fail, mainly because I cannot produce the
matrix required for the height input.
elev.to.list{CTFS} fails with: "Error in matrix(elevfile$elev, nrow=
1+ydim/gridsize, ncol=1+xdim/gridsize. : attempt to set an attribute on
NULL" which I assume means it requires a square grid (=quadrates).
Any ideas/help appreciated
Thanks
Herry
Dr Alexander Herr
Spatial and statistical analyst
CSIRO, Sustainable Ecosystems
Davies Laboratory,
U...