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+#' Piirkonna ruudustike leidmine
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+#'
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+#' Etteantud piirkonna geomeetrilise piirjoone ('piir') järele leitakse selle piirkonna EPSG:3301 projektsioonile vastav piirikast ('boundarybox_3301'). Piirikasti järele leitakse selle kastiga kaetud 5x5 km ('epk10t_grid'), 1x1 km ('epk2t_grid') ja 100x100 meetrit ('epk02t_grid') ruudustikud. Samuti leitakse piirkonna piiri sees olevad ja statistilist ning muud infot sisaldavad 5x5 km ('epk10t') ja 1x1 km ('epk2t') sisaldavad ruudu. Andmed salvestatakse GPKG faili kihtidena. Faili nimeks on objekti nimi.
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+#'
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+#' @param obj str Objekti nimi.
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+#' @param pk Piirkonna geomeetriline joon.
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+#' @param gpkg_home path Salvestatavate GPKG faili asukoht.
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+#'
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+#'
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+piirkonnale_ruudustike_lisamine <- function(obj = NULL, pk = NULL, gpkg_home = "/tmp") {
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+ if (is.null(pk) || !sf::st_is_valid(pk)) {
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+ cat("\nPalun kontrolli geomeetrilise kujundi õigsust.\n")
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+ return()
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+ }
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+ if (is.null(obj)) {
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+ cat("\nPuudu on objekti nimi.\n")
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+ return()
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+ }
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+ cat(sprintf("\nAlgparameetrid: objekti nimi %s ja GPKG faili kataloog %s\n", obj, gpkg_home))
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+ dsn <- sprintf("%s/%s.gpkg", gpkg_home, obj)
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+ input_layer_name <- "piir"
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+ input_layer <- sprintf("%s|layername=%s", dsn, input_layer_name)
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+ output_layer_name <- "boundarybox_3301"
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+ tmp_gpkg_file <- tempfile(fileext = ".gpkg")
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+ # write to gpkg
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+ class(pk)
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+ sf::write_sf(pk,
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+ dsn = dsn,
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+ layer = "piir", driver = "gpkg", append = FALSE
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+ )
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+
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+ ## ------------ 2. piirkonna 3301 projektsiooniga piirikast --------------
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+ ## 2.1 Esmalt leiame milliset 500x500 meetri ruutudega on objekt kaetud.
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+ # ruut::qgis_algorithm_search_by_word(str = "grid")
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+ algorithm <- "native:creategrid"
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+ # cat(qgisprocess::qgis_show_help(algorithm = algorithm))
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+ result <- qgisprocess::qgis_run_algorithm(
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+ algorithm = algorithm,
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+ CRS = "EPSG:3301",
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+ # EXTENT = '25.454305528,26.259893095,59.454118579,59.714621582 [EPSG:4326]',
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+ EXTENT = input_layer,
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+ HOVERLAY = 0,
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+ HSPACING = 500,
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+ TYPE = 2,
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+ VOVERLAY = 0,
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+ VSPACING = 500,
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+ OUTPUT = qgisprocess::qgis_tmp_file(ext = ".gpkg")
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+ # .quiet = TRUE
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+ )
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+ result
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+ pk_grid <- sf::read_sf(qgisprocess::qgis_output(result, "OUTPUT"))
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+ # sf::st_geometry(pk_grid) %>% plot()
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+ ## 2.2 Leitud ruutudele leiame piirikasti.
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+ algorithm <- "qgis:minimumboundinggeometry"
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+ # cat(qgisprocess::qgis_show_help(algorithm = algorithm))
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+ result <- qgisprocess::qgis_run_algorithm(
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+ algorithm = algorithm,
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+ FIELD = "",
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+ INPUT = pk_grid,
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+ TYPE = 3,
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+ OUTPUT = tmp_gpkg_file
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+ # .quiet = TRUE
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+ )
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+ result
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+ pk_grid_bb <- sf::read_sf(qgisprocess::qgis_output(result, "OUTPUT"))
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+ sf::st_geometry(pk_grid_bb) %>% plot(add = T)
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+ system(sprintf("ogr2ogr -f GPKG -overwrite %s %s -nln %s", dsn, tmp_gpkg_file, output_layer_name))
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+
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+ ## ------------- 3. piirkonna epk10t (5x5 km) ruudud --------------------
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+ # 3.1 kogu ruutvõrgustik
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+ ruudud <- c("epk10t_grid", "epk2t_grid", "epk02t_grid")
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+ j <- 4
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+ for (j in 1:length(ruudud)) {
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+ ruut <- ruudud[j]
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+ output_layer_name <- ruut
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+ conf <- ruut::get_config()
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+ pg <- ruut::construct_ogr2ogr_PG_connect_str(conf = conf)
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+ input <- sprintf(
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+ 'postgres://dbname=\'%s\' host=%s port=%s user=\'%s\' sslmode=%s password=\'%s\' key=\'fid\' srid=4326 type=Polygon checkPrimaryKeyUnicity=\'1\' table=\"%s\".\"%s\" (geometry)',
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+ conf$dbname, conf$host, conf$port, conf$user, conf$sslmode, conf$password,
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+ "maaamet", ruut
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+ )
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+ # ruut::qgis_algorithm_search_by_word(str = "extract")
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+ algorithm <- "native:extractbylocation"
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+ # cat(qgisprocess::qgis_show_help(algorithm = algorithm))
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+ result <- qgisprocess::qgis_run_algorithm(
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+ algorithm = algorithm,
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+ INPUT = input,
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+ INTERSECT = sprintf("%s|layername=%s", dsn, "boundarybox_3301"),
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+ OUTPUT = tmp_gpkg_file,
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+ PREDICATE = c(0, 1)
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+ # .quiet = TRUE
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+ )
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+ result
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+ assign(ruut, sf::read_sf(qgisprocess::qgis_output(result, "OUTPUT")))
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+ system(sprintf("ogr2ogr -f GPKG -overwrite %s %s -nln %s", dsn, tmp_gpkg_file, output_layer_name))
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+ }
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+ sf::st_geometry(epk10t_grid) %>% plot(add = T)
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+
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+ # 3.2 ainult piirkonnaga seotud ning informatsiooni sisaldav ruutvõrgustik
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+ ruudud <- c("epk10t", "epk2t")
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+ j <- 4
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+ for (j in 1:length(ruudud)) {
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+ ruut <- ruudud[j]
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+ output_layer_name <- ruut
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+ conf <- ruut::get_config()
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+ pg <- ruut::construct_ogr2ogr_PG_connect_str(conf = conf)
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+ input <- sprintf(
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+ 'postgres://dbname=\'%s\' host=%s port=%s user=\'%s\' sslmode=%s password=\'%s\' key=\'fid\' srid=4326 type=Polygon checkPrimaryKeyUnicity=\'1\' table=\"%s\".\"%s\" (geometry)',
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+ conf$dbname, conf$host, conf$port, conf$user, conf$sslmode, conf$password,
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+ "maaamet", ruut
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+ )
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+ # ruut::qgis_algorithm_search_by_word(str = "extract")
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+ algorithm <- "native:extractbylocation"
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+ # cat(qgisprocess::qgis_show_help(algorithm = algorithm))
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+ result <- qgisprocess::qgis_run_algorithm(
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+ algorithm = algorithm,
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+ INPUT = input,
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+ INTERSECT = input_layer,
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+ OUTPUT = tmp_gpkg_file,
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+ PREDICATE = c(0, 1)
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+ # .quiet = TRUE
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+ )
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+ result
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+ assign(ruut, sf::read_sf(qgisprocess::qgis_output(result, "OUTPUT")))
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+ system(sprintf("ogr2ogr -f GPKG -overwrite %s %s -nln %s", dsn, tmp_gpkg_file, output_layer_name))
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+ }
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+ sf::st_geometry(epk10t) %>% plot(add = T)
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+ ## ---------------------- vaata layer'id ----------------------
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+ # Vaata layer'eid
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+ sf::st_layers(dsn = dsn)
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+}
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+# piirkonnale_ruudustike_lisamine(obj = NULL, pk = NULL, gpkg_home = "/tmp")
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