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Fix postgis lua example

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Fixes #1573.
This commit is contained in:
Patrick Niklaus 2015-08-07 12:02:43 +02:00
parent 49adf2192a
commit 4b4bc0dde2
1 changed files with 7 additions and 7 deletions
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14
profiles/examples/postgis.lua
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@ -45,7 +45,7 @@ function node_function(node)
end
-- ways processing, called from OSRM
function way_function (way)
function way_function (way, result)
-- only route on ways with highway=*
local highway = way.tags:Find("highway")
if (not highway or highway=='') then
@ -65,18 +65,18 @@ function way_function (way)
local cursor = assert( sql_con:execute(sql_query) ) -- execute querty
local row = cursor:fetch( {}, "a" ) -- fetch first (and only) row
way.forward_speed = 20.0 -- default speed
result.forward_speed = 20.0 -- default speed
result.forward_mode = 1
if row then
local val = tonumber(row.val) -- read 'val' from row
local val = tonumber(row.val) -- read 'val' from row
if val > 10 then
way.forward_speed = way.forward_speed / math.log10( val ) -- reduce speed by amount of industry close by
-- reduce speed by amount of industry close by
result.forward_speed = way.forward_speed / math.log10( val )
end
end
cursor:close() -- done with this query
-- set other required info for this way
way.name = way.tags:Find("name")
way.direction = Way.bidirectional
way.type = 1
result.name = way.get_value_by_key("name")
return 1
end