convert.lu.ecors: Convert Land Use classes

In fredtaka/ecors: Remote Sensing data acquisition and processing for ecology with Google Earth Engine

Convert Land Use classes

Description

Re-assign land use classes by converting pixel values.

Usage

convert.lu.ecors(x, old.value, new.value, new.lu.class, new.color = NULL)

Arguments

x	lu.ecors object (from get.lu.ecors).
old.value	vector of original pixel values wich will be replaced.
new.value	vector of pixel values that will replace the original values.
new.lu.class	land use class names that will replace the originals (optional).
new.color	colors used in plots that will replace the originals (optional).

Value

Google Earth Engine container object lu.conv are exported to .GlobalEnv to be used in rgee functions and avoid errors (elapsed time limit). Object with metadata is returned.

Examples

#Get a lu.ecors class object
FAL.IBGE.JBB<-sf::st_read(system.file("extdata/FAL.IBGE.JBB.gpkg", package="ecors"))
test.points<-sf::st_read(system.file("extdata/Points_tests.gpkg", package="ecors"))
test.plots<-sf::st_read(system.file("extdata/Plots_tests.gpkg", package="ecors"))

# Get data (projecting to UTM 32S zone to performe buffer operations)
lu2000_2010<-get.lu.ecors(site=FAL.IBGE.JBB, points=test.points, plots=test.plots,
     polygons=NULL, id.column=1, projected=F, custom.crs=32723,
     collection.lu="mapbiomas6", years=c(2000,2010), resolution=30, evaluate="surroundings.site",
     buffer1=5000, buffer2=10000, buffer3=NULL, cumulative.surroundings=F)

# Grouping several native land use classes
converted<-convert.lu.ecors(x=lu2000_2010,old.value = c(1,3,4,10,11,12,13),
                             new.value = rep(1,times=7), new.lu.class = rep("Native",times=7))

#Plotting
plot(x=converted, comp=lu2000_2010)

fredtaka/ecors documentation built on Aug. 26, 2022, 6:58 a.m.