Create an empty grid table

Create an empty grid table and associated entries for gpkg_spatial_ref_sys, gpkg_2d_gridded_coverage_ancillary, and gpkg_2d_gridded_tile_ancillary.

gpkg_create_empty_grid(
  x,
  tile_matrix_set_name,
  datatype = "integer",
  scale = 1,
  offset = 0,
  precision = 1,
  data_null = NULL,
  grid_cell_encoding = "grid-value-is-center",
  uom = NULL,
  field_name = "Height",
  quantity_definition = "Height",
  srs_id = 4326,
  contents = TRUE,
  description = "",
  ext = c(-180, -90, 180, 90)
)

Arguments

x

A geopackage object

tile_matrix_set_name

character. New table name.

datatype

character. Either "integer" (default) or "float".

scale

numeric. Default: 1.0

offset

numeric. Default: 0.0

precision

numeric. Default: 1.0

data_null

numeric. Default: NULL

grid_cell_encoding

character Default: "grid-value-is-center"

uom

character. Unit of measure. Default: NULL

field_name

character. Default: "Height".

quantity_definition

character. Default: "Height"

srs_id

integer. Spatial Reference System ID. Must be defined in gpkg_spatial_ref_sys table. Default: 4326

contents

logical. Include entry in gpkg_contents? Default: TRUE

description

character. Description for gpkg_contents. Default: ""

ext

numeric. Length 4. Extent (c(xmin, ymin, xmax, ymax)) for gpkg_contents. Default: c(-180, -90, 180, 90)

Value

integer