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+#' Piirkonnale andmebaasis oleva liiklussageduse andmete jagamine kihtideks
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+#'
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+#' Etteantud piirkonna geomeetrilise piirjoone ('piir') ja selle joone piirikasti ('bb') järele leitud liiklussagedusandmete eraldamine kihtideks ("sapa", "vaab", "ar", "sapaarv", "vaabarv", "ararv"). Andmed salvestatakse postgis andmebaasi.
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+#'
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+#' @param obj str Objekti nimi. Edaspidi on oluline ainult see nimi. Piirkonna geomeetrilist joont ei ole vaja lisada.
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+#' @param conf A list() of configuration variables. Default values \code{\link[ruut]{get_config}}.
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+#' @return Liiklussageduse andmete jagamine kihtideks.
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+#' @seealso [sf::st_read()], [sf::write_sf()],[sf::st_transform()],[ruut::pk_sellest_alustame_db_loomist()],[ruut::pk_lisame_ruudustikud()] ,[ruut::pk_lisame_polygoonid()],[ruut::pk_lisame_jooned()],[ruut::pk_lisame_punktid()],[ruut::pk_teisendame_polygoone()],[ruut::pk_teisendame_jooni()],[ruut::pk_teisendame_punkte()]
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+#' @keywords postgis, boundary box, EPSG:3301
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+#' @export
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+#' @examples
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+#' \dontrun{
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+#'
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+#' obj <- "marja"
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+#' pk_teisendame_liiklussagedusi(obj = obj, conf = NULL)
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+#'
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+#' # Layers list.
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+#' ruut::db_schema_tablenames(conf = conf)
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+#' }
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+pk_teisendame_liiklussagedusi <- function(obj = NULL, conf = NULL) {
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+ ## ------------- muutujad ja teisendused ---------------
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+ vars <- ajutised_muutujad(pk = NULL, obj, conf)
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+ obj <- vars$obj
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+ piir <- vars$pk
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+ conf <- vars$conf
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+ ## Konfiguratsiooni muutujale väärtuste omistamine, kui seda pole antud.
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+ if (!any("a00_piir" %in% ruut::db_schema_tablenames(conf = conf))) {
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+ cat(
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+ "\nAndmebaas loomata. Palun funktsiooniga ruut::pk_sellest_alustame_db_loomist() andmebaasi loomist.\n"
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+ )
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+ return(NULL)
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+ }
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+
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+ ## ====================== teisendused =====================
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+ # Layers list
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+ layer_names <- ruut::db_schema_tablenames(conf = conf)
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+ layer_names <-
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+ layer_names[!layer_names %in% c(
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+ "a00_piir",
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+ "a00_bb2",
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+ "a00_piir_bb",
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+ "bb2_epk10t_grid",
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+ "bb2_epk02t_grid",
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+ "bb2_epk2t_grid"
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+ )]
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+ layer_names <- layer_names[grepl("^data_l_", layer_names)]
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+ layer_name <- "n_liiklussagedus"
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+ parent_table <- "data_l_te_n_liiklussagedus"
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+
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+ ## Konfiguratsiooni muutujale väärtuste omistamine, kui seda pole antud.
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+ if (!parent_table %in% layer_names) {
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+ cat(sprintf("\nPuudub andmebaas \"%s\".\n", parent_table))
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+ return(NULL)
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+ }
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+
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+ conn <- ruut::db_connect(conf = conf)
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+ try(ruumiline_obj <-
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+ sf::st_read(dsn = conn,
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+ layer = c(conf$schema, parent_table)))
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+ DBI::dbDisconnect(conn)
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+ ## Kontlrollime kas geomeetriline objekt on polügoon.
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+ ## Arvutame sel juhul pindala.
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+ is_line <-
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+ any(grepl("line", tolower(attributes(
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+ ruumiline_obj$geom
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+ )$class), fixed = TRUE))
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+ # Liiklussageduse klassid.
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+ ls_klassid <-
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+ c("sapa", "vaab", "ar", "sapaarv", "vaabarv", "ararv")
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+ if (is_line) {
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+ for (ls_klass in ls_klassid) {
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+ ls <- ruumiline_obj[, ls_klass]
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+ ## Veeru ümbernimetamine
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+ names(ls) <- c("ls", "geom")
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+
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+ ## 1. Ajutise sf salvestamine
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+ pk <- sf::st_transform(ls, 3301)
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+ # Write to gpkg and check validity
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+ sf::write_sf(
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+ pk,
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+ dsn = vars$tmp_gpkg_file,
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+ layer = vars$conf$gpkg_table,
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+ driver = "gpkg",
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+ fid_column_name = "fid",
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+ delete_dsn = T
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+ )
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+ ## 2. Lõikame objekti ruudistikga tükkideks. Ühte ruutu võib jääda mitu tükki.
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+ ## Peame need pärast ühendama
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+ # ruut::qgis_algorithm_search_by_word("join")
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+ algorithm <- "native:joinattributesbylocation"
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+ conf$table <- sprintf("%s", "bb2_epk02t_grid")
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+ input <- ruut::construct_to_gpkg_output_postgres_str(
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+ conf = conf,
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+ geometry_type = "Polygon",
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+ srid = 3301,
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+ checkPrimaryKeyUnicity = TRUE,
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+ key = "id",
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+ geometry_field = "geom"
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+ )
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+ join <- vars$tmp_gpkg_file_input_1
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+ output <- vars$tmp_gpkg_file_output_2 # ajutine fail
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+ str <-
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+ sprintf(
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+ "{
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+ 'DISCARD_NONMATCHING' : false,
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+ 'INPUT' : '%s',
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+ 'JOIN' : '%s',
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+ 'JOIN_FIELDS' : ['ls'],
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+ 'METHOD' : 2,
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+ 'OUTPUT' : '%s',
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+ 'PREDICATE' : [0],
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+ 'PREFIX' : ''
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+}",
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+ input,
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+ join,
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+ output
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+ )
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+ cmd <-
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+ ruut::construct_qgis_output_result_to_better_format(str = str, algorithm = algorithm)
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+ system(cmd)
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+
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+ ## ------------- TIFF ----------------
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+ ## 5. Asendame NULL väärtustega 0.
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+ algorithm <- "qgis:advancedpythonfieldcalculator"
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+ input <- vars$tmp_gpkg_file_input_2 # ajutine fail
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+ output <- vars$tmp_gpkg_file_output_1
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+ cmd <-
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+ sprintf(
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+ "qgis_process run %s --FIELD_NAME='value' --FIELD_TYPE=1 --FIELD_LENGTH=4 --FIELD_PRECISION=2 --GLOBAL=\"def getValue(x):
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+ if not x:
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+ value = 0
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+ else:
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+ value = round(x,1)
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+ return value\" --FORMULA='value = getValue( <ls> )' --INPUT='%s' --OUTPUT='%s' ",
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+ algorithm,
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+ input,
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+ output
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+ )
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+ system(cmd)
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+
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+ ## 6. tif salvestamine tmp kataloogi
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+ conn <- ruut::db_connect(conf = conf)
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+ grid_layer <-
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+ sf::read_sf(dsn = conn,
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+ layer = c(conf$schema, "bb2_epk02t_grid"))
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+ DBI::dbDisconnect(conn)
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+ # sf::st_crs(grid_layer) <- 3301
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+ pk_attributes <- attributes(grid_layer$geom)
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+ extent <-
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+ sprintf(
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+ "%s,%s,%s,%s [EPSG:3301]",
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+ round((pk_attributes$bbox["xmin"] / 100), digits = 0) * 100,
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+ ceiling((pk_attributes$bbox["xmax"] / 100)) * 100,
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+ round((pk_attributes$bbox["ymin"] / 100), digits = 0) * 100,
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+ ceiling((pk_attributes$bbox["ymax"] / 100)) * 100
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+ )
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+ # ruut::qgis_algorithm_search_by_word("Rasterize")
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+ algorithm <- "gdal:rasterize"
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+ # ruut::qgis_show_help(algorithm = algorithm)
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+ input <- vars$tmp_gpkg_file_input_1
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+ tif_file_name <-
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+ sprintf("tif_%s_%s", gsub("^data_", "", parent_table), ls_klass)
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+ output <- sprintf("%s/%s.tif", vars$tmp_dir, tif_file_name)
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+ str <-
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+ sprintf(
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+ "{ 'BURN' : 0, 'DATA_TYPE' : 5, 'EXTENT' : '%s', 'EXTRA' : '-a_srs epsg:3301', 'FIELD' : 'value', 'HEIGHT' : 100, 'INIT' : None, 'INPUT' : '%s', 'INVERT' : False, 'NODATA' : -1, 'OPTIONS' : '', 'OUTPUT' : '%s', 'UNITS' : 1, 'WIDTH' : 100 }",
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+ extent,
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+ input,
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+ output
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+ )
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+ cmd <-
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+ ruut::construct_qgis_output_result_to_better_format(str = str, algorithm = algorithm)
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+ system(cmd) # Salvestame kataloogi
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+
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+ ## 7. ----------- TIF TO POSTGIS -------------
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+ (
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+ cmd <- sprintf(
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+ "export PGPASSWORD=%s && raster2pgsql -s 3301 -d -I -C -M %s %s.%s_tif | psql -U %s -d %s -h %s -p %s",
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+ conf$password,
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+ output,
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+ conf$schema,
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+ tif_file_name,
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+ conf$user,
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+ conf$dbname,
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+ conf$host,
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+ conf$port
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+ )
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+ )
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+ system(cmd)
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+
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+ ## 8. Eemaldame üleliigsed veerud ja salvestame tiff alusfaili andmebaasi
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+ # ruut::qgis_algorithm_search_by_word("Drop ")
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+ algorithm <- "native:deletecolumn"
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+ input <- vars$tmp_gpkg_file_input_1
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+ conf$table <-
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+ sprintf("grid_%s_%s", gsub("^data_", "", parent_table), ls_klass)
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+ output <-
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+ ruut::construct_to_gpkg_output_postgres_str(
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+ conf = conf,
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+ geometry_field = "geom",
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+ geometry_type = "Polygon",
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+ srid = 3301,
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+ checkPrimaryKeyUnicity = FALSE,
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+ key = "id"
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+ )
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+ cmd <-
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+ sprintf(
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+ "qgis_process run %s --COLUMN='fid' --COLUMN='left' --COLUMN='top' --COLUMN='right' --COLUMN='bottom' --COLUMN='ls' --INPUT='%s' --OUTPUT='%s' ",
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+ algorithm,
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+ input,
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+ output
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+ )
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+ system(cmd)
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+
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+ ## 9. Kustutame geom veeru.
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+ conn <- ruut::db_connect(conf = conf)
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+ q <-
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+ sprintf("ALTER TABLE \"%s\".\"%s\" DROP COLUMN geom;",
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+ conf$schema,
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+ conf$table)
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+ cat(sprintf("\n-----------------\n%s\n\n", q))
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+ DBI::dbSendQuery(conn, q)
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+ ## 10. Vaakum.
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+ q <-
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+ sprintf(
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+ "VACUUM (FULL, FREEZE, VERBOSE, ANALYZE, INDEX_CLEANUP) \"%s\".\"%s\";",
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+ conf$schema,
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+ conf$table
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+ )
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+ cat(sprintf("\n-----------------\n%s\n\n", q))
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+ DBI::dbSendQuery(conn, q)
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+ ## 11. Add foreign key.
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+ q <-
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+ sprintf(
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+ "ALTER TABLE \"%s\".\"%s\" ADD CONSTRAINT %s_fk FOREIGN KEY (id) REFERENCES %s.bb2_epk02t_grid(id);",
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+ conf$schema,
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+ conf$table,
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+ conf$table,
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+ conf$schema
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+ )
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+ cat(sprintf("\n-----------------\n%s\n\n", q))
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+ DBI::dbSendQuery(conn, q)
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+ DBI::dbDisconnect(conn)
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+ }
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+ }
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+ ## Layers list
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+ conf$schema <- obj
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+ ruut::db_schema_tablenames(conf = conf)
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+ sf::st_layers(dsn = vars$tmp_gpkg_file)
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+}
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