FM / profiles

/usr/local/share/osrm/profiles

Name	Size	Mode	Actions
examples/	-	0755	rm
lib/	-	0755	rm
bicycle.lua	22034	0644	edit dl rm
car.lua	13502	0644	edit dl rm
car_fast.lua	14112	0644	edit dl rm
debug_example.lua	1429	0644	edit dl rm
foot.lua	7353	0644	edit dl rm
rasterbot.lua	2021	0644	edit dl rm
rasterbotinterp.lua	1192	0644	edit dl rm
test.lua	2040	0644	edit dl rm
testbot.lua	4246	0644	edit dl rm
turnbot.lua	217	0644	edit dl rm

Edit: /usr/local/share/osrm/profiles/rasterbot.lua (2021B)

-- Rasterbot profile

api_version = 2

function setup()
  local raster_path = os.getenv('OSRM_RASTER_SOURCE') or "rastersource.asc"

return {
    properties = {
      force_split_edges = true,
      process_call_tagless_node = false,
    },
    
    raster_source = raster:load(
      raster_path,
      0,    -- lon_min
      0.1,  -- lon_max
      0,    -- lat_min
      0.1,  -- lat_max
      5,    -- nrows
      4     -- ncols
    )
  }
end

-- Minimalist process_ways in order to test source_ and process_segments
function process_way (profile, way, result)
  local highway = way:get_value_by_key("highway")
  local name = way:get_value_by_key("name")

if name then
    result.name = name
  end

result.forward_mode = mode.cycling
  result.backward_mode = mode.cycling

result.forward_speed = 15
  result.backward_speed = 15
end

function process_segment (profile, segment)
  local sourceData = raster:query(profile.raster_source, segment.source.lon, segment.source.lat)
  local targetData = raster:query(profile.raster_source, segment.target.lon, segment.target.lat)
  io.write("evaluating segment: " .. sourceData.datum .. " " .. targetData.datum .. "\n")
  local invalid = sourceData.invalid_data()
  local scaled_weight = segment.weight
  local scaled_duration = segment.duration

if sourceData.datum ~= invalid and targetData.datum ~= invalid then
    local slope = (targetData.datum - sourceData.datum) / segment.distance
    scaled_weight = scaled_weight / (1.0 - (slope * 5.0))
    scaled_duration = scaled_duration / (1.0 - (slope * 5.0))
    io.write("   slope: " .. slope .. "\n")
    io.write("   was weight: " .. segment.weight .. "\n")
    io.write("   new weight: " .. scaled_weight .. "\n")
    io.write("   was duration: " .. segment.duration .. "\n")
    io.write("   new duration: " .. scaled_duration .. "\n")
  end

segment.weight = scaled_weight
  segment.duration = scaled_duration
end

return {
  setup = setup,
  process_way = process_way,
  process_segment = process_segment
}

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