Navigate NLDI
Navigate the Network Linked Data Index network.
navigate_nldi( nldi_feature, mode = "upstreamMain", data_source = "flowlines", distance_km = 10 )
nldi_feature |
list with names 'featureSource' and 'featureID' where 'featureSource' is derived from the "source" column of the response of dataRetrieval::get_nldi_sources() and the 'featureSource' is a known identifier from the specified 'featureSource'. |
mode |
character chosen from ("UM", "UT", DM", "DD"). See examples. |
data_source |
character chosen from "source" column of the response of dataRetrieval::get_nldi_sources() or empty string for flowline geometry. |
distance_km |
numeric distance in km to stop navigating. |
sf data.frame with result
library(sf)
library(dplyr)
nldi_nwis <- list(featureSource = "nwissite", featureID = "USGS-05428500")
navigate_nldi(nldi_feature = nldi_nwis,
mode = "upstreamTributaries")$UT %>%
st_geometry() %>%
plot()
navigate_nldi(nldi_feature = nldi_nwis,
mode = "UM")$UM %>%
st_geometry() %>%
plot(col = "blue", add = TRUE)
nwissite <- navigate_nldi(nldi_feature = nldi_nwis,
mode = "UT",
data_source = "nwissite")$UT_nwissite
st_geometry(nwissite) %>%
plot(col = "green", add = TRUE)
nwissitePlease choose more modern alternatives, such as Google Chrome or Mozilla Firefox.