Transformation of an sf object into raster
Function transforming an object of class sf into raster (points grid) with wd, the pixel size of the raster. landname gives the variable names for which raster points have to be computed.
landtoraster(landgis, landname, wd, data = NULL)
landgis |
an object of class sf |
landname |
vector of names of landscape variable for which rasters are computed. |
wd |
numeric, pixels size of raster |
data |
a dataframe with X and Y columns, locations. |
a list of dataframes. The components of the list correspond to variables specifed in argument landname. Each dataframe gives the X and Y locations of pixels in raster.
O. Martin
##---- Should be DIRECTLY executable !! ----
##-- ==> Define data, use random,
##-- or do help(data=index) for the standard data sets.
data(dataSiland)
data(landSiland)
head(dataSiland)
head(landSiland)
u1=landtoraster(landSiland,c("L1","L2"),wd=20)
names(u1)
plot(u1[[1]][,c("X","Y")],pch=".")
u2=landtoraster(landSiland,c("L1","L2"),wd=20,data=dataSiland)
points(u2[[1]][,c("X","Y")],pch=".",col=2)
points(dataSiland[,c("X","Y")],pch=16,cex=0.6,col=3)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.