Function shapeGenerator

docs/app/js/sanddance-app.js:131383–131394

(path, field, pointRadius)

    }
});
function shapeGenerator(path, field, pointRadius) {
    const shape = pointRadius == null ? (_)=>path(field(_)) : (_)=>{
        var prev = path.pointRadius(), value = path.pointRadius(pointRadius)(field(_));
        path.pointRadius(prev);
        return value;
    };
    shape.context = (_)=>{
        path.context(_);
        return shape;
    };
    return shape;
}
/**
 * GeoJSON feature generator for creating graticules.
 * @constructor