创建转弯导航 iPhone 应用程序 [英] Creating Turn-Turn Navigation iPhone app

问题描述

我正在尝试构建像 TomTom 或 Mapquest 这样的逐向导航应用程序，并且我正在寻求一些入门帮助，包括可用选项和许可(如果有)的方向.

I am trying to build a turn-by-turn navigation app like TomTom or Mapquest, and I am looking for some help in getting started, in the direction of available options and licensing (if any).

从技术上讲，我认为通过核心位置在地图上绘制当前位置或地址相当容易.但我有一些更具体的路由问题.
- 是否有 Google/或任何其他 API 用于转弯指示?
- 从技术上讲，使用可用的 3rd 方/开源工具(地图、路线、POI 等)创建这样的应用程序的最佳方法是什么?
- 有哪些潜在的挑战或该做什么和不该做什么?

Technically, I think its fairly easy to plot the current location or address on map via Core Location. But I have some question more specific to routing.
- Is there a Google/or any other API for turn-by-turn directions?
- Technically, what is the best way to go about creating an app like that using available 3rd party/open source tools (maps, routes, POI, etc.)?
- What are the potential challenges or do's and dont's?

推荐答案

您还可以查看 openrouteservice.org 在特定国家/地区的路由.虽然 MapQuest 目前不支持其他国家/地区的路由，但他们已全力支持 OSM 计划.如果他们计划很快在不同的国家推出一些东西，我不会感到惊讶.我不擅长路由，但我绝对可以为您提供有关 TTS 工作的指导.另外，我认识一些路由方面的专家，我可以 ping 寻求答案.根据您的野心和应用程序的规模，您可能会很好地投资于基于客户端服务器的 TTS.过去我对 OpenMary(100% 基于 Java 的 TTS)有过非常好的体验，它还支持不同的语言.

You could also look into openrouteservice.org for routing in specific countries. While MapQuest doesn't currently support routing in other countries they have thrown their full weight behind OSM initiatives. I wouldn't be surprised if they are planning to roll something out soon in different countries. I'm not strong in routing but I could definitely give you guidance on the TTS work. Also, I know some gurus on the routing front that I could ping for answers. Depending on your ambition and the scale of your app you might do well to invest in client server based TTS. I've had really good experience with OpenMary (100% Java based TTS) in the past and it also supports different languages.

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