fwa_locate_along | R Documentation |
Gets the point on a stream corresponding to the river metre (downstream route measure).
fwa_locate_along(
blue_line_key,
downstream_route_measure = 0,
bbox = NULL,
properties = NULL,
transform = NULL,
epsg = 4326,
nocache = getOption("fwa.nocache", FALSE)
)
blue_line_key |
A positive whole number of the stream blue line key. |
downstream_route_measure |
A positive number of the river metre. |
bbox |
A vector of four numbers indicating bounding box to limit output
features to, e.g. |
properties |
A vector of strings of the column names to include. If NULL (default), all columns are retained. |
transform |
A character vector with the name of the valid transform function followed by the parameter values (e.g. c("ST_Simplify", 100)) |
epsg |
A positive whole number of the epsg to transform features to. |
nocache |
A flag specifying whether or not to cache results. |
An sf object.
Other functions:
fwa_index_point()
,
fwa_locate_along_interval()
,
fwa_watershed_at_measure()
,
fwa_watershed_hex()
,
fwa_watershed_stream()
,
hydroshed()
fwa_locate_along(356308001, downstream_route_measure = 10000)
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