hec_two allows you query a time series from a hec-ras model result using one more coordinates and an optional time stamp.
hec_two(hc, xy, ts_type = "Water Surface", time_stamp = NULL)
| xy | a coordinate or set of coordinates either in a dataframe or matrix structure. See details below for more information. |
|---|---|
| ts_type | the time series to extract, option defaults to Water Surface |
| time_stamp | return only values with this timestamp |
| f | an hdf file read in with the hec_file() function |
You can supply coordinates in as a matrix. The matrix must have two columns, the first corresponding to the x the second to y. You can supply a dataframe with two columns, the first for x and the second for y.
# NOT RUN { ## first read in file f <- hec_file("examples/ArdenwoodCreek.p50.hdf") ## water surface time series at the coordinate 4567654.0, 2167453.0 ws <- hec_two(f, xy=c(4567654.0, 2167453.0), "Water Surface") ## water surface time series at multiple coordinates coords <- c(4567654.0, 2167453.0, 3456124.0, 7856124.0) ws <- hec_two(f, xy=coords, "Water Surface") ## water surface for a fixed timestamp, useful when querying for large amounts of coordinates. ws <- hec_two(f, xy=c(4567654.0, 2167453.0), "Water Surface", timestamp="2005-09-12 00:00:00") # }