R/package_tools.R

In rsat: Dealing with Multiplatform Satellite Images

as.Date <- function(x, ...) {
  if (is.numeric(x)) {
    return(base::as.Date("1970-01-01") + x)
  } else {
    return(base::as.Date(x, ...))
  }
}
#' @importFrom sf st_transform st_as_sf st_crs<-
#' @importFrom raster projection
#' @importFrom methods is slot<-
transform_multiple_proj <- function(obj, proj4) {
  # Object to be transformed
  if (is(obj, "sf")) {
    new_obj <- obj
  } else if (is(obj, "Spatial")) {
    new_obj <- st_as_sf(obj)
  } else if (is(obj, "Raster")) {
    new_obj <- extent(obj)
    new_obj <- st_as_sf(as(new_obj, "SpatialPolygons"))
    st_crs(new_obj) <- projection(obj)
  } else {
    stop("Spatial object not supported!")
  }

  if (missing(proj4)) {
    return(new_obj)
  } else {
    return(st_transform(new_obj, proj4))
  }
}

lsGetPathRow <- function(str) {
  str <- basename(str)
  return(substr(str, 4, 9))
}

lsGetDates <- function(str, ...) {
  arg <- list(...)
  bname <- basename(str)
  str <- gsub("\\..*", "", bname)
  # sizes<-sapply(str,nchar)
  sizes <- vapply(str, nchar,FUN.VALUE = numeric(1))
  sday <- c()
  for (s in seq_len(length(sizes))) {
    if (sizes[s] == 21) { # new name convention
      sday <- c(sday, as.Date(substr(basename(str[s]), 10, 16), "%Y%j"))
    } else { # old name convention
      sday <- c(sday, as.Date(substr(basename(str[s]), 11, 18), "%Y%m%d"))
    }
  }
  sday <- as.Date(sday)
  if ("format" %in% names(arg)) {
    return(format(sday, format = arg$format))
  } else {
    return(as.Date(sday, "%Y%j"))
  }
}

genGetDates <- function(str, ...) {
  arg <- list(...)
  if ("date.format" %in% names(arg)) {
    return(format(as.Date(gsub(".*\\s*(\\d{7}).*", "\\1", str),
                          "%Y%j"), format = arg$date.format))
  } else {
    return(as.Date(gsub(".*\\s*(\\d{7}).*", "\\1", str), "%Y%j"))
  }
}
#' @importFrom sf st_crs
st_crs<-function(x,...){
  if(is.numeric(x)&&x==54008){
    return(st_crs("ESRI:54008"))
  }else{
    return(sf::st_crs(x))
  }
}

toEspaJSON <- function(json_list, is.array = c("products", "inputs")) {
  nam <- names(json_list)
  resjson <- "{"
  for (n in seq_len(length(nam))) {
    resjson <- paste0(resjson, '"', nam[n], '":')
    nlist <- json_list[[n]]
    if (inherits(nlist,"list")) {
      resjson <- paste0(resjson, toEspaJSON(nlist))
    } else if (length(nlist) > 1 | nam[n] %in% is.array) {
      resjson <- paste0(resjson, "[")
      for (x in nlist) {
        if (is.na(x)) {
          resjson <- paste0(resjson, "null,")
        } else {
          resjson <- paste0(resjson, '"', x, '",')
        }
      }
      resjson <- paste0(resjson, "]")
    } else if (length(nlist) == 1) {
      if (is.na(nlist)) {
        resjson <- paste0(resjson, "null")
      } else {
        resjson <- paste0(resjson, '"', nlist, '"')
      }
    }
    resjson <- paste0(resjson, ",")
  }
  resjson <- paste0(resjson, "}")
  resjson <- gsub(",]", "]", resjson)
  resjson <- gsub(",}", "}", resjson)
  return(resjson)
}

#' @importFrom tools md5sum
genCheckMD5 <- function(path.file, oficial.md5, verbose = FALSE, ...) {
  file.md5 <- md5sum(path.file)
  file.md5 <- toupper(file.md5)
  if (toupper(file.md5) == toupper(oficial.md5)) {
    if (verbose) {
      message(paste0("File md5:", file.md5))
      message(paste0("Oficial md5:", oficial.md5))
      message("Return TRUE")
    }
    return(TRUE)
  } else {
    if (verbose) {
      message(paste0("File md5:", file.md5))
      message(paste0("Oficial md5:", oficial.md5))
      message("Return FALSE")
    }
    return(FALSE)
  }
}


modGetDates <- function(str, ...) {
  arg <- list(...)
  dt <- as.Date(gsub(".*\\As*(\\d{7}).*", "\\1", str), "%Y%j")
  if (!any(is.na(dt))) {
    if ("format" %in% names(arg)) {
      return(format(dt, format = arg$format))
    } else {
      return(dt)
    }
  } # else{
  # return(genGetDates(str,...))
  # }
}
modGetPathRow <- function(str) {
  return(gsub(".*\\s*(h\\d{2}v\\d{2}).*", "\\1", str))
}
getTileID_MSIL2A <- function(str) {
  return(substr(str, 40, 44))
}

SENPRODUCTS <- list(
  "Sentinel-1" = c("SLC", "GRD", "OCN"),
  "Sentinel-2" = c("S2MSI2A",
                   "S2MSI1C",
                   "S2MS2Ap"),
  "Sentinel-3" = c("SR_1_SRA___",
                   "SR_1_SRA_A",
                   "SR_1_SRA_BS",
                   "SR_2_LAN___",
                   "OL_1_EFR___",
                   "OL_1_ERR___",
                   "OL_2_LFR___",
                   "OL_2_LRR___",
                   "SL_1_RBT___",
                   "SL_2_LST___",
                   "SY_2_SYN___",
                   "SY_2_V10___",
                   "SY_2_VG1___",
                   "SY_2_VGP___"),
  "Sentinel-5" = c("L1B_IR_SIR",
                   "L1B_IR_UVN",
                   "L1B_RA_BD1",
                   "L1B_RA_BD2",
                   "L1B_RA_BD3",
                   "L1B_RA_BD4",
                   "L1B_RA_BD5",
                   "L1B_RA_BD6",
                   "L1B_RA_BD7",
                   "L1B_RA_BD8",
                   "L2__AER_AI",
                   "L2__AER_LH",
                   "L2__CH4",
                   "L2__CLOUD_",
                   "L2__CO____",
                   "L2__HCHO__",
                   "L2__NO2___",
                   "L2__NP_BD3",
                   "L2__NP_BD6",
                   "L2__NP_BD7",
                   "L2__O3_TCL",
                   "L2__O3____",
                   "L2__SO2___")
)

optEnv <- new.env()

assign("RSAT_DATABASE", "", env=optEnv)
setRSATOpt <- function(opt,value,env=optEnv) {
  assign(opt, value, envir=env)
}

getRSATOpt <- function(opt,env=optEnv) {
  return(get(opt, envir=env))
}