这张Map是一个社区的人口总数。图层“Population2000Layer”包括属性字段“Total”。只需要到达那里并在多边形的中心显示总数，例如
局部填充（特征、属性、总计）
目标是使用"总人口“属性来标记每个多边形：

function choroplethize(d) {
<!-- jenks breaks from 2010 were applied to 2000 as well-->
return d > 1175  ? '#045a8d' :
       d > 1083  ? '#2b8cbe' :
       d > 801  ? '#74a9cf' :
       d > 711  ? '#bdc9e1' :
                  '#f1eef6';
}

// styling for the total Population layers
function styleTotalPop(feature) {
    return {
        weight: 3,
        opacity: 0.25,
        color: 'black',
        dashArray: '3',
        fillOpacity: 0.9,
        fillColor: choroplethize(feature.properties.Total)
    }
}

<!-- add blocks' Populations for 2000 and 2010 as GeoJSON layer -->
var Population2000Layer = L.geoJson(Population2000, {
    style: styleTotalPop,
    onEachFeature: geojsonPopup2000,
    pointToLayer: function (feature, latlng) {
        return L.marker(latlng);
    }
});