Test for LINESTRING type in weight_streetnet

[agila5]

Fixes #246.

I'm not sure if we can do something better to accept also MULTILINESTRING(s), but I think this is good enough for the moment. Reprex of the new behaviour

library(dodgr)
toy <- structure(
  list(
    highway = c("primary", "primary"),
    osm_id = c(1L, 2L), 
    geometry = structure(
      list(
        structure(c(0, 1, 0, 1),
          dim = c(2L, 2L), class = c(
            "XY",
            "LINESTRING", "sfg"
          )
        ), structure(list(structure(c(
          1, 2, 1,
          2
        ), dim = c(2L, 2L), class = c("XY", "LINESTRING", "sfg"))), class = c(
          "XY",
          "MULTILINESTRING", "sfg"
        ))
      ),
      class = c("sfc_GEOMETRY", "sfc"), precision = 0, bbox = structure(c(
        xmin = 0, ymin = 0, xmax = 2,
        ymax = 2
      ), class = "bbox"), crs = structure(list(
        input = NA_character_,
        wkt = NA_character_
      ), class = "crs"), classes = c(
        "LINESTRING",
        "MULTILINESTRING"
      ), n_empty = 0L
    )
  ),
  row.names = 1:2, class = c(
    "sf",
    "data.frame"
  ), sf_column = "geometry", agr = structure(c(highway = NA_integer_), class = "factor", levels = c(
    "constant",
    "aggregate", "identity"
  ))
)
weight_streetnet(toy)
#> Warning: At least one of the input geometries is not a LINESTRING. Discarding
#> them.
#>   geom_num edge_id from_id from_lon from_lat to_id to_lon to_lat        d
#> 1        1       1       0        0        0     1      1      1 156899.6
#> 2        1       2       1        1        1     0      0      0 156899.6
#>   d_weighted highway way_id component    time time_weighted
#> 1   224142.2 primary      1         1 37655.9      53794.14
#> 2   224142.2 primary      1         1 37655.9      53794.14

^{Created on 2024-09-24 with reprex v2.0.2}

Session info

sessioninfo::session_info()
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