JavaScript ArcGIS TravelMode用法及代码示例

AMD: require(["esri/rest/support/TravelMode"], (TravelMode) => { /* code goes here */ });

ESM: import TravelMode from "@arcgis/core/rest/support/TravelMode";

类： esri/rest/support/TravelMode

继承: TravelMode > Accessor

自从：用于 JavaScript 4.20 的 ArcGIS API

TravelMode 是一组特征，用于定义车辆、自行车或行人等对象如何沿街道网络移动。在寻找方向以确定车辆或行人如何行驶以及他们可以去哪里时，会考虑这些特征。要获取支持的出行模式列表、查找默认出行模式以及查找和使用特定出行模式，您可以使用 networkService.fetchServiceDescription() 方法：

// 1. Get the default and supported travel modes of a route service
const apiKey = "<your api key>";
const url = "https://route-api.arcgis.com/arcgis/rest/services/World/Route/NAServer/Route_World";
const serviceDescription = await fetchServiceDescription(url, apiKey);
const { defaultTravelMode, supportedTravelModes } = serviceDescription;
console.log(`The id of the default travel mode is: ${defaultTravelMode}.`);
console.log(`This service has ${supportedTravelModes.length} preset travel modes`);

// 2. Find and use the "Driving Time" travel mode
const apiKey = "<your api key>";
const url = "https://route-api.arcgis.com/arcgis/rest/services/World/Route/NAServer/Route_World";
const serviceDescription = await fetchServiceDescription(url, apiKey);
const { supportedTravelModes } = serviceDescription;
const driveTimeTravelMode = supportedTravelModes.find((mode) => mode.name === "Driving Time");

// Solve a route using the "Driving Time" travel mode
const routeParameters = {
  stops: stopsFeatureSet, // route stops
  travelMode: driveTimeTravelMode
};
const result = await solve(url, routeParameters);

对于ArcGIS Enterprise 服务，出行模式的默认值基于使用网络分析函数发布Map服务时的图层设置。打开服务说明页面以查看参数的默认值。