CRAN version 0.1.4

v0.1.4

Major changes:

• New vignette on street networks and time-based routing
• weight_streetnet function now returns edge times for all Open Street Map networks extracted with the osmdata package.
• weight_streetnet now accepts SC format data from osmdata::osmdata_sc()
• New dodgr_times function to calculate journey times, including differential speeds and penalties for intersections and traffic lights.
• dodgr::weighting_profiles data changed from single data.frame to list with additional parameters determining speeds and time penalties for dodgr_times function; former data.frame is now
  dodgr::weighting_profiles$weighting_profiles.
• New function write_dodgr_wt_profile writes full profile to local .json file for editing and subsequent use via weight_streetnet(wt_profile_file=<local_file_name.json>)`.
• dodgr_dists(), dodgr_paths(), and dodgr_flows() can no longer be used to automatically download street networks, thus former parameters wt_profile and expand have been removed; networks must be explicitly
  downloaded with dodgr_streetnet().

Minor changes:

• Bug fix with dodgr_to_igraph to create proper weighted igraph
• Add "footway" to weighting_profiles

CRAN version 0.1.3

v0.1.3

Major changes:

• New functions dodgr_fundamental_cycles and dodgr_full_cycles
• New function dodgr_sflines_to_poly to convert sf collections of LINESTRING object into corresponding enclosed POLYGON objects.
• New function dodgr_to_sf creates full sf objects, extending dodgr_to_sfc
• New function igraph_to_dodgr converts igraph objects into dodgr format
• New function dodgr_uncontract_graph to convert from contracted back into original, uncontracted from, including any additional data appended on to contracted graph.

Minor changes:

• Bug fix with vignette caused by updates to tinytex rendering of svg
• Bug fix for dodgr_dists (heap = "set") with integer distances

CRAN version 0.1.2

Major changes:

• New function dodgr_to_igraph
• weight_streetnet is now a method, with implementations for objects of
  classes .sf and .sc.
• New function weight_railway to weight a network for railway routing.
• dodgr_dists implements Dijkstra paths with std::set sorting through new
  option dodgr_dists(..., heap = "set") (It's slower than others, but good for
  sake of completeness).

Minor changes:

• Various modifications that should result in notable speed gains
• dodgr_streetnet now accepts polygonal bbox argument, and uses
  osmdata::trim_osmdata to trim resultant network to within that polygon
  (issue #50).
• Extended examples for weight_streetnet and dodgr_flows_aggregateto include a non-OSM example fromstplanr::routes_fast` (issue #45).

CRAN release v0.1.1

v0.1.1

Major changes:

• Crucial fix of previous typo that made all dodgr_dist calculations wrong (Earth's radius is 6371, not 3671!) - thanks to @chrijo
• weight_streetnet function now accepts data.frame objects defining wt_profile, enabling modification and direct re-submission of
  dodgr::weighting_profiles
• weighting_profiles$value modified to 0-1 scores rather than previous percentage values.
• weight_streetnet flags any highway types not present in nominated or submitted weighting profile.
• dodgr_paths now has additional pairwise parameter to enable paths only between matched pairs of from and to points (so returning n paths rather than n^2), thanks to @mem48.
• dodgr_to_sf deprecated to dodgr_to_sfc (#43)

Minor changes:

• Added Malcolm Morgan (@mem48; bug-finder extraordinare) as contributor
• Bug fix with dodgr_paths and simple data.frames, thanks to James Smith.
• Bug fix of former improper handling of one-way edges, thanks to @chrijo.
• match_pts_to_graph has additional connected parameter to allow points to be matched only to largest connected component.

Non-CRAN Release v0.1.0

Major changes:

• New function dodgr_flowmap() plots maps of flows. Currently only writes .png files, because large networks can not be effectively plotted on graphic devices.
• dodgr_flows() has option to routes flows from a set of source origins to all points in a network, attenuated by distance from those origins.
• dodgr_to_sf() converts a spatially-explicit dodgr graph into Simple Features (sf) format.

Minor changes:

• match_pts_to_graph() now accepts Simple Features (sf) collections of sfc_POINT objects to be matched.

Non-CRAN Release v0.0.6

Non-CRAN release v0.0.6

CRAN v0.0.3

Minor C++ fixes; no change to functionality

CRAN v0.0.2

Major changes:

• New function, dodgr_paths, for returning explicit shortest path routes.
• New function, dodgr_flows, for aggregting flows across a network from multiple origin and destination points.
• New function, merge_directed_flows, to reduce aggregated directional flows to non-directional equivalent values useful for visualisation.