Comments (3)
Another 10x+ speed-up, FYI @mem48, @JosiahParry, @palelimbot, @kadyb and anyone else interested in perf. What lwgeom
slowness doing and worth reporting upstream?
> l <- flowlines_sf[1:5, ]
> bearings_sf_1_9 <- line_bearing(l)
> bearings_sf_1_9 # lines of 0 length have NaN bearing
[1] -92.04942 -102.44566 -143.83660 -173.33154 170.51696
> line_bearing(l, bidirectional = TRUE)
[1] 87.950582 77.554344 36.163396 6.668455 -9.483044
> # benchmark:
> profvis::profvis(line_bearing(l))
> bm = bench::mark(line_bearing(l))
> l <- flowlines_sf[1:5, ]
> bearings_sf_1_9 <- line_bearing(l)
> bearings_sf_1_9 # lines of 0 length have NaN bearing
[1] -92.04942 -102.44566 -143.83660 -173.33154 170.51696
> line_bearing(l, bidirectional = TRUE)
[1] 87.950582 77.554344 36.163396 6.668455 -9.483044
> # benchmark:
> # profvis::profvis(line_bearing(l))
> bm = bench::mark(line_bearing(l))
> bm2 = bench::mark(geosphere = {
+ odc = od::od_coordinates(l)
+ geosphere::bearing(
+ p1 = odc[, 1:2],
+ p2 = odc[, 3:4]
+ )
+ })
> bm$`itr/sec`
[1] 58.62699
> bm2$`itr/sec`
[1] 3095.411
> bm2$`itr/sec` / bm$`itr/sec`
[1] 52.79839
from stplanr.
New implementation, same results:
> bearings_sf_1_9 # lines of 0 length have NaN bearing
[1] -92.04942 -102.44566 -143.83660 -173.33154 170.51696
from stplanr.
> line_bearing(l, bidirectional = TRUE)
[1] 87.950582 77.554344 36.163396 6.668455 -9.483044
from stplanr.
Related Issues (20)
- Use different buffer options in `rnet_merge()`
- Convert large GeoJSON file to PMTiles HOT 1
- bug in geo_buffer HOT 7
- Possible speed enhancement to `mats2line()` HOT 3
- Invalid LineStrings in routes_fast_sf HOT 1
- Use `od::odc_to_sfc()` do the legwork in `mats2line()` HOT 3
- Bug in `line_segment()` when using certain values on projected data with `rsgeo` implementation HOT 8
- `rnet_merge()` fails when inputs are projected HOT 4
- Argument of segment_length in line_segment fun causes issue HOT 14
- Tried creating a route from desirelines using osrm function HOT 9
- rnet merge function can't not handle attributes containing strings HOT 1
- Add links to more papers in DESCRIPTION
- Re-add n_segments argument to line_segment() HOT 1
- `line_segment()` fails when n_segments has multiple values HOT 1
- od2line() throws an error if only one origin-destination relation is selected HOT 5
- Tests fail if {rsgeo} is not installed
- Work-around rsgeo not on cran
- Checks when Suggests are unavailable HOT 1
- Actions failing HOT 1
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from stplanr.