Return the FWA edge type codes bundled with this package, optionally filtered by category. Source: Table 2 "Edge Type Code Table" from the GeoBC Freshwater Atlas User Guide (GeoBC 2009, p. 11).
Value
A data.frame with columns edge_type (integer), description
(character), and category (character).
Examples
# All edge types
frs_edge_types()
#> edge_type
#> 1 100
#> 2 150
#> 3 1000
#> 4 1050
#> 5 1100
#> 6 1150
#> 7 1200
#> 8 1250
#> 9 1300
#> 10 1325
#> 11 1350
#> 12 1375
#> 13 1400
#> 14 1410
#> 15 1425
#> 16 1450
#> 17 1475
#> 18 1500
#> 19 1525
#> 20 1550
#> 21 1600
#> 22 1625
#> 23 1700
#> 24 1800
#> 25 1825
#> 26 1850
#> 27 1875
#> 28 1900
#> 29 1925
#> 30 1950
#> 31 1975
#> 32 2000
#> 33 2100
#> 34 2300
#> 35 5000
#> 36 5100
#> 37 5200
#> 38 5900
#> 39 6000
#> 40 6010
#> 41 6100
#> description
#> 1 Coastline
#> 2 Construction line, coastline
#> 3 Single line blueline, main flow
#> 4 Single line blueline, main flow through wetland
#> 5 Single line blueline, secondary flow
#> 6 Single line blueline, secondary flow through wetland
#> 7 Construction line, main flow
#> 8 Construction line, double line river, main flow
#> 9 Construction line, secondary flow
#> 10 Construction line, segment delimiter
#> 11 Construction line, double line river, secondary flow
#> 12 Construction line, river delimiter
#> 13 Construction line, other flow/inferred connection
#> 14 Construction line, network connector
#> 15 Construction line, subsurface flow
#> 16 Construction line, connection
#> 17 Construction line, lake arm
#> 18 Lake shoreline
#> 19 Lake shoreline shared with a wetland
#> 20 Construction line, lakeshore
#> 21 Island shoreline
#> 22 Island shoreline shared with a wetland
#> 23 Wetland shoreline
#> 24 Double line blueline, right bank
#> 25 Double line blueline, right bank shared with wetland
#> 26 Double line blueline, left bank
#> 27 Double line blueline, left bank shared with wetland
#> 28 Island in river, right bank
#> 29 Island in river, right bank shared with wetland
#> 30 Island in river, left bank
#> 31 Island in river, left bank shared with wetland
#> 32 Single line, Canal
#> 33 Double line, Canal or Reservoir bank
#> 34 Single-line, Canal, secondary flow
#> 35 Major watershed boundary
#> 36 Minor watershed boundary
#> 37 Watershed boundary (manually modified)
#> 38 Isolated watershed boundary
#> 39 International/Provincial Boundary
#> 40 Construction Line, connectors (for streams that leave and re-enter a watershed group)
#> 41 Non-BC International/Provincial Boundary (appears only in extra-jurisdictional data)
#> category
#> 1 coastline
#> 2 construction
#> 3 stream
#> 4 stream
#> 5 stream
#> 6 stream
#> 7 construction
#> 8 construction
#> 9 construction
#> 10 construction
#> 11 construction
#> 12 construction
#> 13 connector
#> 14 connector
#> 15 subsurface
#> 16 connector
#> 17 construction
#> 18 lake
#> 19 lake
#> 20 construction
#> 21 island
#> 22 island
#> 23 wetland
#> 24 river
#> 25 river
#> 26 river
#> 27 river
#> 28 island
#> 29 island
#> 30 island
#> 31 island
#> 32 canal
#> 33 canal
#> 34 canal
#> 35 boundary
#> 36 boundary
#> 37 boundary
#> 38 boundary
#> 39 boundary
#> 40 connector
#> 41 boundary
# Just lake codes
frs_edge_types(category = "lake")
#> edge_type description category
#> 18 1500 Lake shoreline lake
#> 19 1525 Lake shoreline shared with a wetland lake
# Stream-type codes (definite, probable, intermittent, inferred)
frs_edge_types(category = "stream")
#> edge_type description category
#> 3 1000 Single line blueline, main flow stream
#> 4 1050 Single line blueline, main flow through wetland stream
#> 5 1100 Single line blueline, secondary flow stream
#> 6 1150 Single line blueline, secondary flow through wetland stream
# Use with frs_classify() to scope classification by waterbody type
lake_codes <- frs_edge_types(category = "lake")$edge_type
paste("edge_type IN (", paste(lake_codes, collapse = ", "), ")")
#> [1] "edge_type IN ( 1500, 1525 )"