p.grid {wasim} | R Documentation |
These two functions help to read and plot grid-files created by WaSiM. You need the gridasci-executable if to convert binary grid data to ascii grid data.
p.grid(grid, ...) read.grid(file, record_size=4)
grid |
A grid read with the read.grid function |
... |
Additional arguments passed to plot |
file |
WASIM grid output file in ASCII or binary format. |
record_size |
number of bytes used to represent a float value in the binary grid. Usually 4, but may be platform-dependent. |
The file is opened as a binary grid unless the infile has one of the following extensions: *.asc, *.ascii, *.txt. Nodata values are represented by NAs.
read.grid returns a list:
head |
dataframe of header information containing the fields ncols, nrows, xllcorner, yllcorner, cellsize, nodata_value. |
tab |
The actual grid |
Dominik Reusser, Till Francke
WaSiM-ETH manual
read.results
, p.flow_comp
for more WaSiM related function.
filled.contour
for plotting options
sd.grid <- read.grid( file= system.file("weisseritz/sd__ww100.grd", package="wasim")) # Datumsreihe heisst jetzt d.datum p.grid(sd.grid, color.palette=topo.colors, zlim=c(-20,20), main="Saturation deficit at the Weisseritz")