shp_to_inp: Convert .shp files to SWMM's .inp file
In dleutnant/swmmr: R Interface for US EPA's SWMM

Reads *.shp files and other information needed for SWMM's *.inp file and returns a list of class inp. If paths are not specified default values are taken.

shp_to_inp(
  path_options = NULL,
  path_polygon = NULL,
  subcatchment_typologies = NULL,
  path_point = NULL,
  junction_parameters = NULL,
  path_outfall = NULL,
  path_line = NULL,
  conduit_material = NULL,
  path_timeseries = NULL,
  infiltration = NULL,
  path_pumps = NULL,
  path_pump_curve = NULL,
  path_weirs = NULL,
  path_storage = NULL,
  path_storage_curve = NULL
)

`path_options`	Name (incl. path) to a .txt file with SWMM sections. Write section name in lower case and in squared brackets. The following sections are allowed: options, report, raingages, evaporation, pollutant, landuse, buildup, washoff, coverages.
`path_polygon`	Name (incl. path) to a .shp file with polygons features. At least the following subcatchment related columns must be specified: Name, Outlet, Area, RouteTo.
`subcatchment_typologies`	R data.frame or tibble with further subcatchment related parameters. If subcatchment_typologies is given, polygon feature has to include a column named Type. Parameters defined in subcatchment_typologies parameters are merged to subcatchments by Type.
`path_point`	Name (incl. path) to a .shp file with point features. At least the following junction related columns must be specified: Name, Bottom and Top or Ymax.
`junction_parameters`	R data.frame or tibble with further junction related parameters (e.g. Surcharge depth).
`path_outfall`	Name (incl. path) to a .shp file with point features. At least the following outfall related columns must be specified: Name, Bottom, Type, Gated.
`path_line`	Name (incl. path) to a .shp file with line features. At least the following conduit related coulumns must be specified: Name, Length, Type, FromNode, ToNode, OutOffset, Geom1.
`conduit_material`	R data.frame or tibble with further conduit related parameters (e.g. roughness). If conduit_material is given, line feature has to include a column named Material. Parameters defined in conduit_material parameters are merged to conduits by Material.
`path_timeseries`	Name (incl. path) to a .dat file with a timeseries in SWMM format.
`infiltration`	R data.frame or tibble with infiltration parameters related to soil properties. If infiltration is given, polygon feature has to include a column named soil. Infiltration parameters are merged to subcatchments by soil name.
`path_pumps`	Name (incl. path) to a .shp file with line features. All parameters must be given: Name, FromNode, ToNode, Pcurve, status, Startup, Shutoff.
`path_pump_curve`	Name (incl. path) to a .txt file with pump curve information. Having the following structure: "Name of pump" "PUMP1-4" "x" "y", without header.
`path_weirs`	Name (incl. path) to a .shp file with line features. All parameters must be given: Name, FromNode, ToNode, Type, CrestHt, Cd, Gated, EC, Cd2, Sur.
`path_storage`	Name (incl. path) to a .txt file with storage curve information. Having the following structure: "Name of storage" "Storage" "x" "y", without header.
`path_storage_curve`	Name (incl. path) to a .txt file with storage curve information. Having the following structure: "Name of storage unit" "Storage" "x" "y", without header.