get_wms return RGB layer instead of values for MNT or MNH

paul-carteron commented 1 year ago

happign 0.1.9 work, need to go back to old method

paul-carteron commented 1 year ago

gdal_translate with -tr and -projwin argument work but I need to compute width and height for each tile as before. Also I cannot reproject the raster.

rm(list=ls())

library(sf)
library(tmap)
library(terra)

# x <- mapedit::drawFeatures()
x <- read_sf(system.file("extdata/penmarch.shp", package = "happign"))

apikey = "ortho"
layer = "ORTHOIMAGERY.ORTHOPHOTOS.BDORTHO"
res = 5
filename = tempfile(fileext = ".tif")
crs = 2154
overwrite = FALSE
version = "1.3.0"
styles = ""
interactive = FALSE
x <- st_make_valid(x) |>
   st_transform(st_crs(crs))
bbox <- st_bbox(x)

url <- paste0(
   "https://wxs.ign.fr/",
   apikey,
   "/geoportail/r/wms?",
   "VERSION=1.3.0",
   "&REQUEST=GetMap",
   "&LAYERS=", layer,
   "&CRS=EPSG:2154",
   "&FORMAT=image/geotiff",
   "&width=2048",
   "&height=2048",
   "&styles=",
   "&bbox=", paste(bbox["xmin"], bbox["ymin"], bbox["xmax"], bbox["ymax"], sep = ",")
)

gdal_utils("translate",
           source = url,
           destination = "temp.tif",
           quiet = FALSE,
           options = c("-tr", 2, 2, 
                       "-projwin", bbox$xmin, bbox$ymax, bbox$xmax, bbox$ymin))

rast <- rast("temp.tif")

tm_shape(rast)+
   tm_rgb()

paul-carteron commented 1 year ago

gdal warp can't be used because RGB is returned and also it's much longer

paul-carteron / happign

get_wms return RGB layer instead of values for MNT or MNH #21