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rhwlo/routes.elm

Created May 29, 2016 22:09
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An Elm program to visualize BART routes
Raw
routes.elm
{- this is hosted currently at http://fearchar.net/2016/May/29/bart-elm-routes -}
import Debug exposing (log)
import Dict exposing (Dict)
import Json.Decode as Json exposing ((:=))
import Maybe
import Result
import String
import Html.App as Html
import Html exposing (Html)
import Svg exposing (..)
import Svg.Attributes as SA exposing (..)
import Svg.Events exposing (onMouseOver, onMouseOut)
import Char exposing (isHexDigit, toLocaleLower, toCode)
type alias RGB = (Int, Int, Int)
type alias Route = { name : String, abbreviation : String, id : String, number : Int, color: String, stationCount : Int, stations : List String }
type alias Station = { abbreviation: String, name : String, latitude : Float, longitude : Float }
type alias Model = (List Route, Dict String Station, Maybe Route)
type Msg = Highlight Route | Unhighlight
sourceJson : String
sourceJson = """{"routes":[{"Name":"Pittsburg/Bay Point - SFIA/Millbrae","Abbreviation":"PITT-SFIA","ID":"ROUTE 1","Number":1,"Color":"#ffff33","Holidays":1,"StationCount":26,"Stations":[{"Abbreviation":"PITT","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"NCON","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"CONC","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"PHIL","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"WCRK","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"LAFY","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"ORIN","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"ROCK","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"MCAR","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"19TH","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"12TH","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"WOAK","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"EMBR","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"MONT","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"POWL","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"CIVC","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"16TH","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"24TH","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"GLEN","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"BALB","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"DALY","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"COLM","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"SSAN","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"SBRN","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"SFIA","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"MLBR","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""}]},{"Name":"Millbrae/SFIA - 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Daly City","Abbreviation":"DUBL-DALY","ID":"ROUTE 11","Number":11,"Color":"#0099cc","Holidays":1,"StationCount":17,"Stations":[{"Abbreviation":"DUBL","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"WDUB","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"CAST","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"BAYF","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"SANL","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"COLS","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"FTVL","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"LAKE","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"WOAK","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"EMBR","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"MONT","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"POWL","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"CIVC","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"16TH","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"24TH","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"GLEN","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"BALB","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"DALY","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""}]},{"Name":"Daly City - Dublin/Pleasanton","Abbreviation":"DALY-DUBL","ID":"ROUTE 12","Number":12,"Color":"#0099cc","Holidays":1,"StationCount":17,"Stations":[{"Abbreviation":"DALY","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"BALB","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"GLEN","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"24TH","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"16TH","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"CIVC","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"POWL","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"MONT","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"EMBR","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"WOAK","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"LAKE","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"FTVL","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"COLS","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"SANL","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"BAYF","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"CAST","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"WDUB","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"DUBL","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""}]},{"Name":"Coliseum - Oakland Int'l Airport","Abbreviation":"COLS-OAKL","ID":"ROUTE 19","Number":19,"Color":"#d5cfa3","Holidays":1,"StationCount":2,"Stations":[{"Abbreviation":"COLS","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"OAKL","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""}]},{"Name":"Oakland Int'l Airport - Coliseum","Abbreviation":"OAKL-COLS","ID":"ROUTE 20","Number":20,"Color":"#d5cfa3","Holidays":1,"StationCount":2,"Stations":[{"Abbreviation":"OAKL","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""},{"Abbreviation":"COLS","Name":"","Latitude":0,"Longitude":0,"Address":"","City":"","County":"","State":"","ZIPCode":""}]}],
"stations":[{"Abbreviation":"12TH","Name":"12th St. Oakland City Center","Latitude":37.803665,"Longitude":-122.27161,"Address":"1245 Broadway","City":"Oakland","County":"alameda","State":"CA","ZIPCode":"94612"},{"Abbreviation":"16TH","Name":"16th St. Mission","Latitude":37.76506,"Longitude":-122.41969,"Address":"2000 Mission Street","City":"San Francisco","County":"sanfrancisco","State":"CA","ZIPCode":"94110"},{"Abbreviation":"19TH","Name":"19th St. Oakland","Latitude":37.80787,"Longitude":-122.26903,"Address":"1900 Broadway","City":"Oakland","County":"alameda","State":"CA","ZIPCode":"94612"},{"Abbreviation":"24TH","Name":"24th St. Mission","Latitude":37.752254,"Longitude":-122.418465,"Address":"2800 Mission Street","City":"San Francisco","County":"sanfrancisco","State":"CA","ZIPCode":"94110"},{"Abbreviation":"ASHB","Name":"Ashby","Latitude":37.853024,"Longitude":-122.26978,"Address":"3100 Adeline Street","City":"Berkeley","County":"alameda","State":"CA","ZIPCode":"94703"},{"Abbreviation":"BALB","Name":"Balboa Park","Latitude":37.72198,"Longitude":-122.44741,"Address":"401 Geneva Avenue","City":"San Francisco","County":"sanfrancisco","State":"CA","ZIPCode":"94112"},{"Abbreviation":"BAYF","Name":"Bay Fair","Latitude":37.697186,"Longitude":-122.12687,"Address":"15242 Hesperian Blvd.","City":"San Leandro","County":"alameda","State":"CA","ZIPCode":"94578"},{"Abbreviation":"CAST","Name":"Castro Valley","Latitude":37.690754,"Longitude":-122.07557,"Address":"3301 Norbridge Dr.","City":"Castro Valley","County":"alameda","State":"CA","ZIPCode":"94546"},{"Abbreviation":"CIVC","Name":"Civic Center/UN Plaza","Latitude":37.77953,"Longitude":-122.41376,"Address":"1150 Market Street","City":"San Francisco","County":"sanfrancisco","State":"CA","ZIPCode":"94102"},{"Abbreviation":"COLS","Name":"Coliseum","Latitude":37.754005,"Longitude":-122.19727,"Address":"7200 San Leandro St.","City":"Oakland","County":"alameda","State":"CA","ZIPCode":"94621"},{"Abbreviation":"COLM","Name":"Colma","Latitude":37.68464,"Longitude":-122.46623,"Address":"365 D Street","City":"Colma","County":"sanmateo","State":"CA","ZIPCode":"94014"},{"Abbreviation":"CONC","Name":"Concord","Latitude":37.973736,"Longitude":-122.0291,"Address":"1451 Oakland Avenue","City":"Concord","County":"contracosta","State":"CA","ZIPCode":"94520"},{"Abbreviation":"DALY","Name":"Daly City","Latitude":37.70612,"Longitude":-122.46908,"Address":"500 John Daly Blvd.","City":"Daly City","County":"sanmateo","State":"CA","ZIPCode":"94014"},{"Abbreviation":"DBRK","Name":"Downtown Berkeley","Latitude":37.869865,"Longitude":-122.26804,"Address":"2160 Shattuck Avenue","City":"Berkeley","County":"alameda","State":"CA","ZIPCode":"94704"},{"Abbreviation":"DUBL","Name":"Dublin/Pleasanton","Latitude":37.701694,"Longitude":-121.90037,"Address":"5801 Owens Dr.","City":"Pleasanton","County":"alameda","State":"CA","ZIPCode":"94588"},{"Abbreviation":"DELN","Name":"El Cerrito del Norte","Latitude":37.925655,"Longitude":-122.31727,"Address":"6400 Cutting Blvd.","City":"El Cerrito","County":"contracosta","State":"CA","ZIPCode":"94530"},{"Abbreviation":"PLZA","Name":"El Cerrito Plaza","Latitude":37.903057,"Longitude":-122.29927,"Address":"6699 Fairmount Avenue","City":"El Cerrito","County":"contracosta","State":"CA","ZIPCode":"94530"},{"Abbreviation":"EMBR","Name":"Embarcadero","Latitude":37.792976,"Longitude":-122.39674,"Address":"298 Market Street","City":"San Francisco","County":"sanfrancisco","State":"CA","ZIPCode":"94111"},{"Abbreviation":"FRMT","Name":"Fremont","Latitude":37.557354,"Longitude":-121.9764,"Address":"2000 BART Way","City":"Fremont","County":"alameda","State":"CA","ZIPCode":"94536"},{"Abbreviation":"FTVL","Name":"Fruitvale","Latitude":37.774963,"Longitude":-122.22427,"Address":"3401 East 12th Street","City":"Oakland","County":"alameda","State":"CA","ZIPCode":"94601"},{"Abbreviation":"GLEN","Name":"Glen Park","Latitude":37.73292,"Longitude":-122.43409,"Address":"2901 Diamond Street","City":"San Francisco","County":"sanfrancisco","State":"CA","ZIPCode":"94131"},{"Abbreviation":"HAYW","Name":"Hayward","Latitude":37.6704,"Longitude":-122.08797,"Address":"699 'B' Street","City":"Hayward","County":"alameda","State":"CA","ZIPCode":"94541"},{"Abbreviation":"LAFY","Name":"Lafayette","Latitude":37.893394,"Longitude":-122.1238,"Address":"3601 Deer Hill Road","City":"Lafayette","County":"contracosta","State":"CA","ZIPCode":"94549"},{"Abbreviation":"LAKE","Name":"Lake Merritt","Latitude":37.797485,"Longitude":-122.26561,"Address":"800 Madison Street","City":"Oakland","County":"alameda","State":"CA","ZIPCode":"94607"},{"Abbreviation":"MCAR","Name":"MacArthur","Latitude":37.828415,"Longitude":-122.26723,"Address":"555 40th Street","City":"Oakland","County":"alameda","State":"CA","ZIPCode":"94609"},{"Abbreviation":"MLBR","Name":"Millbrae","Latitude":37.59979,"Longitude":-122.38666,"Address":"200 North Rollins Road","City":"Millbrae","County":"sanmateo","State":"CA","ZIPCode":"94030"},{"Abbreviation":"MONT","Name":"Montgomery St.","Latitude":37.789257,"Longitude":-122.401405,"Address":"598 Market Street","City":"San Francisco","County":"sanfrancisco","State":"CA","ZIPCode":"94104"},{"Abbreviation":"NBRK","Name":"North Berkeley","Latitude":37.87404,"Longitude":-122.28345,"Address":"1750 Sacramento Street","City":"Berkeley","County":"alameda","State":"CA","ZIPCode":"94702"},{"Abbreviation":"NCON","Name":"North Concord/Martinez","Latitude":38.003277,"Longitude":-122.0246,"Address":"3700 Port Chicago Highway","City":"Concord","County":"contracosta","State":"CA","ZIPCode":"94520"},{"Abbreviation":"OAKL","Name":"Oakland Int'l Airport","Latitude":37.71297,"Longitude":-122.21244,"Address":"4 Airport Drive","City":"Oakland","County":"alameda","State":"CA","ZIPCode":"94621"},{"Abbreviation":"ORIN","Name":"Orinda","Latitude":37.87836,"Longitude":-122.18379,"Address":"11 Camino Pablo","City":"Orinda","County":"contracosta","State":"CA","ZIPCode":"94563"},{"Abbreviation":"PITT","Name":"Pittsburg/Bay Point","Latitude":38.018913,"Longitude":-121.94515,"Address":"1700 West Leland Road","City":"Pittsburg","County":"contracosta","State":"CA","ZIPCode":"94565"},{"Abbreviation":"PHIL","Name":"Pleasant Hill/Contra Costa Centre","Latitude":37.928402,"Longitude":-122.056015,"Address":"1365 Treat Blvd.","City":"Walnut Creek","County":"contracosta","State":"CA","ZIPCode":"94597"},{"Abbreviation":"POWL","Name":"Powell St.","Latitude":37.784992,"Longitude":-122.40686,"Address":"899 Market Street","City":"San Francisco","County":"sanfrancisco","State":"CA","ZIPCode":"94102"},{"Abbreviation":"RICH","Name":"Richmond","Latitude":37.936886,"Longitude":-122.353165,"Address":"1700 Nevin Avenue","City":"Richmond","County":"contracosta","State":"CA","ZIPCode":"94801"},{"Abbreviation":"ROCK","Name":"Rockridge","Latitude":37.8446,"Longitude":-122.25179,"Address":"5660 College Avenue","City":"Oakland","County":"alameda","State":"CA","ZIPCode":"94618"},{"Abbreviation":"SBRN","Name":"San Bruno","Latitude":37.637753,"Longitude":-122.41604,"Address":"1151 Huntington Avenue","City":"San Bruno","County":"sanmateo","State":"CA","ZIPCode":"94066"},{"Abbreviation":"SFIA","Name":"San Francisco Int'l Airport","Latitude":37.616035,"Longitude":-122.39261,"Address":"International Terminal, Level 3","City":"San Francisco Int'l Airport","County":"sanmateo","State":"CA","ZIPCode":"94128"},{"Abbreviation":"SANL","Name":"San Leandro","Latitude":37.72262,"Longitude":-122.16131,"Address":"1401 San Leandro Blvd.","City":"San Leandro","County":"alameda","State":"CA","ZIPCode":"94577"},{"Abbreviation":"SHAY","Name":"South Hayward","Latitude":37.6348,"Longitude":-122.05755,"Address":"28601 Dixon Street","City":"Hayward","County":"alameda","State":"CA","ZIPCode":"94544"},{"Abbreviation":"SSAN","Name":"South San Francisco","Latitude":37.664173,"Longitude":-122.444115,"Address":"1333 Mission Road","City":"South San Francisco","County":"sanmateo","State":"CA","ZIPCode":"94080"},{"Abbreviation":"UCTY","Name":"Union City","Latitude":37.59121,"Longitude":-122.01787,"Address":"10 Union Square","City":"Union City","County":"alameda","State":"CA","ZIPCode":"94587"},{"Abbreviation":"WCRK","Name":"Walnut Creek","Latitude":37.90563,"Longitude":-122.06742,"Address":"200 Ygnacio Valley Road","City":"Walnut Creek","County":"contracosta","State":"CA","ZIPCode":"94596"},{"Abbreviation":"WDUB","Name":"West Dublin/Pleasanton","Latitude":37.69976,"Longitude":-121.9281,"Address":"6501 Golden Gate Drive","City":"Dublin","County":"alameda","State":"CA","ZIPCode":"94568"},{"Abbreviation":"WOAK","Name":"West Oakland","Latitude":37.804676,"Longitude":-122.29458,"Address":"1451 7th Street","City":"Oakland","County":"alameda","State":"CA","ZIPCode":"94607"}]}"""
routesDecoder : Json.Decoder (List Route)
routesDecoder = let
idSanitize : String -> String
idSanitize = String.map <|
\c -> case c of
' ' -> '-'
_ -> c
in Json.at ["routes"] <| Json.list
<| Json.object7 Route
("Name" := Json.string)
("Abbreviation" := Json.string)
(Json.map idSanitize ("ID" := Json.string))
("Number" := Json.int)
("Color" := Json.string)
("StationCount" := Json.int)
("Stations" := (Json.list <| "Abbreviation" := Json.string))
stationsDecoder : Json.Decoder (Dict String Station)
stationsDecoder = Json.map Dict.fromList
<| Json.map (List.map (\s -> (s.abbreviation, s)))
<| Json.at ["stations"] <| Json.list
<| Json.object4 Station
("Abbreviation" := Json.string)
("Name" := Json.string)
("Latitude" := Json.float)
("Longitude" := Json.float)
staleRoutes : List Route
staleRoutes = Result.withDefault [] <| Json.decodeString routesDecoder sourceJson
staleStations : Dict String Station
staleStations = Result.withDefault Dict.empty <| Json.decodeString stationsDecoder sourceJson
init : Model
init = (staleRoutes, staleStations, Nothing)
main = Html.beginnerProgram {
model = init,
view = view,
update = update }
view : Model -> Svg Msg
view (routes, stations, maybeHighlight) = svg
[ version "1.1", x "0", y "0", width "1000", height "1000", viewBox "0 0 1000 1000" ]
((List.map makeRouteCircle routes) ++ (makeSvgMap routes stations maybeHighlight))
makeRouteCircle : Route -> Svg Msg
makeRouteCircle route = let
cxVal = 50 * ((route.number - 1) % 6 + 1)
cyVal = 50 * ((route.number - 1) // 6 + 1)
textX = cxVal - (6 * (String.length (toString route.number)))
textY = cyVal + 5
in g [id route.id] [circle [ fill route.color, stroke (complementS route.color), id route.id, cx (toString cxVal), cy (toString cyVal), r "20", SA.title route.name, onMouseOver (Highlight route), onMouseOut Unhighlight ] [], text' [stroke (complementS route.color), fill (complementS route.color), fontFamily "Verdana", fontSize "20px", x (toString textX), y (toString textY), SA.title route.name, onMouseOver (Highlight route), onMouseOut Unhighlight] [text (toString route.number)]]
makeSvgMap : List Route -> Dict String Station -> Maybe Route -> List (Svg Msg)
makeSvgMap troutes tstations maybeRoute = let
mapW = 600
mapH = 800
minLat = 37.557
maxLat = 38.019
minLong = -122.47
maxLong = -121.90
latScale = (mapH - 50) / (maxLat - minLat)
lonScale = (mapW - 50) / (maxLong - minLong)
drawStation : (String, Station) -> Svg Msg
drawStation (abbr, station) = let
stationColor : String
stationColor = Maybe.withDefault "#ffffff" (maybeRoute `Maybe.andThen` (\r ->
if List.member abbr r.stations then (Just r.color) else Nothing))
in circle [ fill stationColor, cx (toString <| (station.longitude - minLong) * lonScale + 385), cy (toString <| (maxLat - station.latitude) * latScale + 50), r "5", id ("stn-" ++ abbr)] []
in [ rect [x "360", y "25", fill "#000000", stroke "none", width "600", height "800"] [] ] ++ List.map drawStation (Dict.toList tstations)
complementS : String -> String
complementS color = let
rgb : RGB
rgb = Maybe.withDefault (0,0,0) <| rgbFromHex color
brightest : RGB -> Int
brightest (r, g, b) = List.foldl Basics.max 0 [r, g, b]
rgbToString : RGB -> String
rgbToString (r, g, b) = "rgb(" ++ toString r ++ "," ++ toString g ++ "," ++ toString b ++ ")"
complement : RGB
complement = let br = brightest rgb
in (255 - brightest rgb, 255 - brightest rgb, 255 - brightest rgb)
in rgbToString complement
rgbFromHex : String -> Maybe RGB
rgbFromHex h = let
fromHex : List Char -> Maybe Int
fromHex cs = let
fromHexC c me = let
mi = if not (isHexDigit c) then Nothing else case toLocaleLower c of
'a' -> Just 10
'b' -> Just 11
'c' -> Just 12
'd' -> Just 13
'e' -> Just 14
'f' -> Just 15
_ -> Just (toCode c - 48)
in Maybe.map2 (\e i -> e * 16 + i) me mi
in List.foldl fromHexC (Just 0) cs
maybeTake : Int -> List a -> Maybe (List a)
maybeTake n xs = if List.length (List.take n xs) < n then Nothing else Just (List.take n xs)
withoutHash : List Char
withoutHash = if String.left 1 h == "#" then List.drop 1 (String.toList h) else String.toList h
maybeColor : Int -> Maybe Int
maybeColor offset = (maybeTake 2 <| List.drop offset withoutHash) `Maybe.andThen` fromHex
red : Maybe Int
red = maybeColor 0
blue : Maybe Int
blue = maybeColor 2
green : Maybe Int
green = maybeColor 4
in
Maybe.map3 (,,) red blue green
update : Msg -> Model -> Model
update msg (routes, stations, _) = case msg of
Highlight r -> (routes, stations, Just r)
Unhighlight -> (routes, stations, Nothing)
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