Bug: hereR::isoline fails: "Error in decode(encoded[[x]]): Invalid format version"

[nbanion]

For specific parameter combinations, hereR::isoline fails. In these cases, I would expect the function to either (1) return a polygon or (2) throw an error that makes my mistake more obvious.

This bug was the motivation to propose workaround #118 . As noted there, it probably makes sense to close that issue and just address the bug directly here.

Below I induce an error by playing with range.

library(hereR)
library(sf)
#> Linking to GEOS 3.8.0, GDAL 3.0.4, PROJ 6.3.1

# A test point.
point <- 
  c(-73.51263, 44.20958) %>% 
  st_point() %>% st_sfc() %>% st_sf(crs = "WGS84")

# Range 1800 (30 min) succeeds.
isoline(point, range = 1800)
#> Simple feature collection with 1 feature and 5 fields
#> geometry type:  POLYGON
#> dimension:      XY
#> bbox:           xmin: -73.88306 ymin: 43.82996 xmax: -73.31863 ymax: 44.64157
#> geographic CRS: WGS 84
#>   id rank           departure             arrival range
#> 1 NA    1 2021-05-12 16:07:03 2021-05-12 16:37:03  1800
#>                         geometry
#> 1 POLYGON ((-73.87688 44.2309...

# Range 3600 (60 min) fails.
isoline(point, range = 3600)
#> Error in decode(encoded[[x]]): Invalid format version

^{Created on 2021-05-12 by the reprex package (v2.0.0)}

[munterfi]

Hi, thanks for reporting!

This issue is already fixed in #121:

library(hereR)
set_verbose(TRUE)
library(sf)
#> Linking to GEOS 3.8.1, GDAL 3.1.4, PROJ 6.3.1

point <- 
  c(-73.51263, 44.20958) %>% 
  st_point() %>% st_sfc() %>% st_sf(crs = "WGS84")

isoline(point, range = 1800)
#> Sending 1 request(s) with 1 RPS to: 'https://isoline.router.hereapi.com/v8/isolines?...'
#> Received 1 response(s) with total size: 5 Kb
#> Simple feature collection with 1 feature and 5 fields
#> Geometry type: POLYGON
#> Dimension:     XY
#> Bounding box:  xmin: -73.90503 ymin: 43.84094 xmax: -73.31863 ymax: 44.64157
#> Geodetic CRS:  WGS 84
#>   id rank           departure             arrival range
#> 1 NA    1 2021-05-14 13:34:00 2021-05-14 14:04:00  1800
#>                         geometry
#> 1 POLYGON ((-73.89885 44.2254...

isoline(point, range = 3600)
#> Sending 1 request(s) with 1 RPS to: 'https://isoline.router.hereapi.com/v8/isolines?...'
#> Received 1 response(s) with total size: 5.9 Kb
#> Simple feature collection with 1 feature and 5 fields
#> Geometry type: MULTIPOLYGON
#> Dimension:     XY
#> Bounding box:  xmin: -74.28955 ymin: 43.42896 xmax: -73.11676 ymax: 45.04395
#> Geodetic CRS:  WGS 84
#>   id rank           departure             arrival range
#> 1 NA    1 2021-05-14 13:34:01 2021-05-14 14:34:01  3600
#>                         geometry
#> 1 MULTIPOLYGON (((-74.27719 4...

Are you using the latest version of the hereR and flexpolyline packages on CRAN?

packageVersion("flexpolyline")
#> [1] '0.2.3'
packageVersion("hereR")
#> [1] '0.7.0'

Session info

``` r devtools::session_info() #> ─ Session info ─────────────────────────────────────────────────────────────── #> setting value #> version R version 4.0.5 (2021-03-31) #> os macOS Big Sur 10.16 #> system x86_64, darwin17.0 #> ui X11 #> language (EN) #> collate en_US.UTF-8 #> ctype en_US.UTF-8 #> tz Europe/Zurich #> date 2021-05-14 #> #> ─ Packages ─────────────────────────────────────────────────────────────────── #> package * version date lib source #> assertthat 0.2.1 2019-03-21 [1] CRAN (R 4.0.0) #> cachem 1.0.4 2021-02-13 [1] CRAN (R 4.0.2) #> callr 3.7.0 2021-04-20 [1] CRAN (R 4.0.2) #> class 7.3-18 2021-01-24 [1] CRAN (R 4.0.5) #> classInt 0.4-3 2020-04-07 [1] CRAN (R 4.0.0) #> cli 2.5.0 2021-04-26 [1] CRAN (R 4.0.2) #> crayon 1.4.1 2021-02-08 [1] CRAN (R 4.0.2) #> crul 1.1.0 2021-02-15 [1] CRAN (R 4.0.2) #> curl 4.3.1 2021-04-30 [1] CRAN (R 4.0.5) #> data.table 1.14.0 2021-02-21 [1] CRAN (R 4.0.2) #> DBI 1.1.1 2021-01-15 [1] CRAN (R 4.0.2) #> desc 1.3.0 2021-03-05 [1] CRAN (R 4.0.2) #> devtools 2.4.0 2021-04-07 [1] CRAN (R 4.0.2) #> digest 0.6.27 2020-10-24 [1] CRAN (R 4.0.2) #> dplyr 1.0.5 2021-03-05 [1] CRAN (R 4.0.2) #> e1071 1.7-6 2021-03-18 [1] CRAN (R 4.0.2) #> ellipsis 0.3.2 2021-04-29 [1] CRAN (R 4.0.2) #> evaluate 0.14 2019-05-28 [1] CRAN (R 4.0.0) #> fansi 0.4.2 2021-01-15 [1] CRAN (R 4.0.2) #> fastmap 1.1.0 2021-01-25 [1] CRAN (R 4.0.2) #> flexpolyline 0.2.3 2021-04-30 [1] CRAN (R 4.0.2) #> fs 1.5.0 2020-07-31 [1] CRAN (R 4.0.2) #> generics 0.1.0 2020-10-31 [1] CRAN (R 4.0.2) #> glue 1.4.2 2020-08-27 [1] CRAN (R 4.0.2) #> hereR * 0.7.0 2021-04-16 [1] CRAN (R 4.0.2) #> htmltools 0.5.1.1 2021-01-22 [1] CRAN (R 4.0.2) #> httpcode 0.3.0 2020-04-10 [1] CRAN (R 4.0.2) #> jsonlite 1.7.2 2020-12-09 [1] CRAN (R 4.0.2) #> KernSmooth 2.23-18 2020-10-29 [1] CRAN (R 4.0.5) #> knitr 1.33 2021-04-24 [1] CRAN (R 4.0.2) #> lifecycle 1.0.0 2021-02-15 [1] CRAN (R 4.0.2) #> magrittr 2.0.1 2020-11-17 [1] CRAN (R 4.0.2) #> memoise 2.0.0 2021-01-26 [1] CRAN (R 4.0.2) #> pillar 1.6.0 2021-04-13 [1] CRAN (R 4.0.2) #> pkgbuild 1.2.0 2020-12-15 [1] CRAN (R 4.0.2) #> pkgconfig 2.0.3 2019-09-22 [1] CRAN (R 4.0.0) #> pkgload 1.2.1 2021-04-06 [1] CRAN (R 4.0.2) #> prettyunits 1.1.1 2020-01-24 [1] CRAN (R 4.0.0) #> processx 3.5.2 2021-04-30 [1] CRAN (R 4.0.5) #> proxy 0.4-25 2021-03-05 [1] CRAN (R 4.0.2) #> ps 1.6.0 2021-02-28 [1] CRAN (R 4.0.2) #> purrr 0.3.4 2020-04-17 [1] CRAN (R 4.0.0) #> R6 2.5.0 2020-10-28 [1] CRAN (R 4.0.2) #> Rcpp 1.0.6 2021-01-15 [1] CRAN (R 4.0.2) #> remotes 2.3.0 2021-04-01 [1] CRAN (R 4.0.2) #> rlang 0.4.11 2021-04-30 [1] CRAN (R 4.0.5) #> rmarkdown 2.7 2021-02-19 [1] CRAN (R 4.0.2) #> rprojroot 2.0.2 2020-11-15 [1] CRAN (R 4.0.2) #> sessioninfo 1.1.1 2018-11-05 [1] CRAN (R 4.0.0) #> sf * 0.9-8 2021-03-17 [1] CRAN (R 4.0.2) #> stringi 1.5.3 2020-09-09 [1] CRAN (R 4.0.2) #> stringr 1.4.0 2019-02-10 [1] CRAN (R 4.0.2) #> testthat 3.0.2 2021-02-14 [1] CRAN (R 4.0.2) #> tibble 3.1.1 2021-04-18 [1] CRAN (R 4.0.2) #> tidyselect 1.1.1 2021-04-30 [1] CRAN (R 4.0.5) #> units 0.7-1 2021-03-16 [1] CRAN (R 4.0.2) #> usethis 2.0.1 2021-02-10 [1] CRAN (R 4.0.2) #> utf8 1.2.1 2021-03-12 [1] CRAN (R 4.0.2) #> vctrs 0.3.8 2021-04-29 [1] CRAN (R 4.0.2) #> withr 2.4.2 2021-04-18 [1] CRAN (R 4.0.2) #> xfun 0.22 2021-03-11 [1] CRAN (R 4.0.2) #> yaml 2.2.1 2020-02-01 [1] CRAN (R 4.0.0) #> #> [1] /Library/Frameworks/R.framework/Versions/4.0/Resources/library ```

[nbanion]

I was out of date. After updating, the example works for me. Thanks for the fix!