Use building:levels as an indicator for height

[jaskiratr]

Current Behavior

Expected Behavior
OSM Buildings

OSM Data Source

[jsteele2003]

There's almost certainly a better way to do this, but it works for syracuse at least!

Filter
.features | .[] | select(.properties.building != null) | (select(.properties.height != null) | ((.properties.height = try (.properties.height | tostring | capture("(?<num>[0-9]+)")| .num | tonumber) catch .) )) , (select(.properties.height == null and .properties["building:levels"] == null) | .properties.height = 1), (select(.properties.height == null and .properties["building:levels"] != null) | .properties.height = try (.properties["building:levels"] | tostring | capture("(?<num>[0-9]+)")| .num | tonumber) catch .)

Sample
[ { "type": "Feature", "properties": {"party": "Green", "building": "yes", "height" : "10"} }, { "type": "Feature", "properties": {"party": "Republican", "building": "yes"} }, { "type": "Feature", "properties": {"party": "Democrat", "building": "yes", "height" : "20 m", "building:levels": 31} }, { "type": "Feature", "properties": {"party": "Salty", "building": "yes", "building:levels": "31"} }]

Output
{ "type": "Feature", "properties": { "party": "Green", "building": "yes", "height": 10 } } { "type": "Feature", "properties": { "party": "Republican", "building": "yes", "height": 1 } } { "type": "Feature", "properties": { "party": "Democrat", "building": "yes", "height": 20, "building:levels": 31 } } { "type": "Feature", "properties": { "party": "Salty", "building": "yes", "building:levels": "31", "height": 31 } }

I am noticing however that the levels property isn't an exact match for height- so might require some more arithmetic to approximate height a bit more accurately