[R] Surfaceplot3D with wireframe

Gustaf Granath gustaf.granath at ebc.uu.se
Tue Oct 10 12:42:24 CEST 2006


Hi,
I want to make a surface3D plot of a landscape. I have cordinates (x, y, z)
recorded with a GPS. The datapoints are not evenly distributed within the
rectangular area.

To do a fast 3D plot I used following.

> library(grid)
> library(lattice)
> v <- read.table("clipboard")
> names(v) <- c("x", "y", "z")
> wireframe(z ~ x * y, data = v)

However I just get an empty box with no 3D grid. I have tried with other data
and then it usually works. But I cant get it to work with my data.
Here is a sample of my data (x, y, z). I think there is something in my data set
that wireframe doesnt like. Any ideas?? Are there better commands to use? 
(I have tried to change the magnitude of the numbers but that doesnt help)
     y               x            z      
6659592.078	1585162.959	59.229
6659591.348	1585164.402	59.159
6659590.494	1585163.294	59.205
6659589.466	1585158.968	59.290
6659589.229	1585159.390	59.246
6659588.963	1585158.895	59.201
6659589.475	1585158.617	59.199
6659589.808	1585159.206	59.135
6659592.361	1585161.707	59.447
6659592.387	1585161.319	59.437
6659592.590	1585161.871	59.217
6659591.989	1585162.156	59.163
6659591.934	1585161.489	59.358
6659590.340	1585158.060	59.352
6659590.228	1585157.714	59.138
6659590.957	1585157.947	59.145
6659590.422	1585158.344	59.214
6659589.904	1585158.024	59.175
6659589.877	1585162.033	59.346
6659589.967	1585161.674	59.197
6659590.109	1585162.062	59.205
6659589.778	1585162.572	59.152
6659589.591	1585161.876	59.187
6659591.783	1585156.210	59.561
6659592.164	1585156.764	59.266
6659590.352	1585156.154	59.339
6659590.890	1585154.720	59.278
6659592.520	1585155.023	59.250
6659593.127	1585166.690	59.217

Regards,
Gustaf
_________________________________________________________
Gustaf Granath (PhD student)
Dept of Plant Ecology
Evolutionary Biology Centre (EBC)
Uppsala University
Villavägen 14, SE - 752 36 Uppsala, Sweden

Tel: +46 (0)18-471 76 88 
Fax: 018 55 34 19
Email: Gustaf.Granath at ebc.uu.se



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