69 lines
2.1 KiB
Lua
69 lines
2.1 KiB
Lua
api_version = 1
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-- Rasterbot profile
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properties.force_split_edges = true
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-- Set to true if you need to call the node_function for every node.
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-- Generally can be left as false to avoid unnecessary Lua calls
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-- (which slow down pre-processing).
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properties.call_tagless_node_function = false
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-- Minimalist node_ and way_functions in order to test source_ and segment_functions
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function node_function (node, result)
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end
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function way_function (way, result)
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local highway = way:get_value_by_key("highway")
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local name = way:get_value_by_key("name")
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if name then
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result.name = name
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end
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result.forward_mode = mode.cycling
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result.backward_mode = mode.cycling
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result.forward_speed = 15
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result.backward_speed = 15
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end
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function source_function ()
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local path = os.getenv('OSRM_RASTER_SOURCE')
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if not path then
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path = "rastersource.asc"
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end
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raster_source = sources:load(
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path,
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0, -- lon_min
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0.1, -- lon_max
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0, -- lat_min
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0.1, -- lat_max
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5, -- nrows
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4 -- ncols
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)
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end
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function segment_function (segment)
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local sourceData = sources:query(raster_source, segment.source.lon, segment.source.lat)
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local targetData = sources:query(raster_source, segment.target.lon, segment.target.lat)
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io.write("evaluating segment: " .. sourceData.datum .. " " .. targetData.datum .. "\n")
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local invalid = sourceData.invalid_data()
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local scaled_weight = segment.weight
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local scaled_duration = segment.duration
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if sourceData.datum ~= invalid and targetData.datum ~= invalid then
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local slope = (targetData.datum - sourceData.datum) / segment.distance
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scaled_weight = scaled_weight / (1.0 - (slope * 5.0))
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scaled_duration = scaled_duration / (1.0 - (slope * 5.0))
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io.write(" slope: " .. slope .. "\n")
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io.write(" was weight: " .. segment.weight .. "\n")
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io.write(" new weight: " .. scaled_weight .. "\n")
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io.write(" was duration: " .. segment.duration .. "\n")
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io.write(" new duration: " .. scaled_duration .. "\n")
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end
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segment.weight = scaled_weight
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segment.duration = scaled_duration
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end
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