javascript - Choropleth in Leaflet -

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i'm new leaflet (and stackoverflow) , i've been trying choropleth show on map. have basic leaflet map shows up, when try geojson display, thrown error.

var map; window.onload = initialize();  function initialize(){     setmap(); };  function setmap() {     map = l.map('map').setview([45, -90], 7);      var layer = l.tilelayer('http://{s}.acetate.geoiq.com/tiles/acetate/{z}/{x}/{y}.png',{     attribution: 'acetate tileset geoiq', }).addto(map);  var mylayer = l.geojson().addto(map); mylayer.adddata(counties); };

"counties" refers name of geojson file created. need style in anyway show up?

any great appreciated.

thanks!

to show yes. start with:

function getcolor(d) {     return d > 1000 ? '#800026' :            d > 500  ? '#bd0026' :            d > 200  ? '#e31a1c' :            d > 100  ? '#fc4e2a' :            d > 50   ? '#fd8d3c' :            d > 20   ? '#feb24c' :            d > 10   ? '#fed976' :                       '#ffeda0'; //you pick own colors using css color wheel etc }

followed by:

function style(feature) {     return {         fillcolor: getcolor(feature.properties.density), //based on value in data         weight: 2,         opacity: 1,         color: 'white',         dasharray: '3',         fillopacity: 0.7     }; }  l.geojson(statesdata, {style: style}).addto(map);

in case wondering additional info on map. try this: http://leafletjs.com/examples/choropleth.html


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