Created
May 28, 2020 14:09
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Landsat imagery test
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username = '', | |
password = '' | |
wdir <- file.path(tempdir(),"Path_for_downloading_folder") | |
bbox_ls <- clipping_bbox(-82.758605,27.631232,-82.732227,27.654636) | |
sres <- lsSearch(startDate = as.Date("01-01-2020", "%d-%m-%Y"), | |
endDate = as.Date("31-01-2020", "%d-%m-%Y"), | |
#pathrow = list(c(200, 31), c(200, 30)), | |
browseAvaliable = "Y", | |
region = st_as_sfc(bbox_ls), | |
AppRoot = wdir, | |
username = '', | |
password = '', | |
product = 'LSR_LANDSAT_8_C1') | |
lsPreview(sres, 1) | |
lsDownload(sres, | |
username = '', | |
password = '', | |
AppRoot = wdir, | |
untar = T) | |
wdir.ls8 <- file.path(wdir,"Landsat8") | |
files.ls8 <- list.files(wdir.ls8, | |
pattern = "\\.TIF$", | |
full.names = TRUE, | |
recursive = TRUE)[c(6,5,4)] | |
files.ls8.rgb <- stack(files.ls8) | |
qrange <- c(0.001, 0.999) | |
img.ls8.rgb <- varRGB(files.ls8.rgb[[1]], | |
files.ls8.rgb[[2]], | |
files.ls8.rgb[[3]], | |
qrange) | |
plotRGB(img.ls8.rgb) | |
bbox_sp <- as_Spatial(st_as_sfc(bbox_ls)) | |
bbox_sp <- spTransform(bbox_sp, crs(img.ls8.rgb)) | |
img.ls8.rgb_c <- crop(img.ls8.rgb, | |
extent(bbox_sp)) | |
img.ls8.rgb_m <- mask(img.ls8.rgb, | |
bbox_sp) | |
test <- varRGB(img.ls8.rgb_c$red, | |
img.ls8.rgb_c$green, | |
img.ls8.rgb_c$blue | |
) | |
test <- stack(test) | |
#RGB <- cbind(getValues(test$red), getValues(test$green), getValues(test$blue)) | |
plotRGB(test) | |
plotRGB(test, stretch = 'lin') | |
tmap_mode("view") | |
genPlotGIS(list(test)#, | |
#region = st_as_sfc(bbox_ls) | |
) |
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