googlemaps
Version:
A simple way to query the Google Maps API from Node.js
54 lines (42 loc) • 1.2 kB
JavaScript
var _encodePolyline = require('./encodePolylines');
/**
Transfors an array of paths into a pipe separeted string
input = [
{
points: [
'40.737102,-73.990318',
'40.749825,-73.987963',
'40.752946,-73.987384',
'40.755823,-73.986397'
],
color: '0x0000ff',
weight: 5
}
]
output = color:0x0000ff|weight:5|40.737102,-73.990318|40.749825,-73.987963|40.752946,-73.987384|40.755823,-73.986397
**/
module.exports = function(paths, encodePolylines) {
if (!Array.isArray(paths)) {
throw new Error('paths must be an array');
}
return paths.map(function(path) {
var i, len, p = [], keys = ['weight', 'color', 'fillcolor', 'geodisc'];
for (i = 0, len = keys.length; i < len; i++) {
if (path[keys[i]] != null) {
p.push(keys[i] + ':' + path[keys[i]]);
}
}
if (!Array.isArray(path.points)) {
throw new Error('Each path must have an array of points');
} else {
if (encodePolylines === true) {
p.push( 'enc:' + _encodePolyline(path['points']));
} else {
path['points'].map(function(point) {
p.push(point);
});
}
}
return p.join('|');
}).join('|');
}