如何以编程方式找到一个黑莓的方向吗？ [英] How do I programmatically find direction on a blackberry?

问题描述

如何编程上使用黑莓GPS找不到方向？

How do I programmatically find direction on a blackberry using GPS?

推荐答案

通过GPS，最小分辨率和身边是3米。如果采取连续GPS数据，寻找显著的变化在给定方向，它会给你的行进方向的粗略估计，这样的人正面临着一个可能的方向。

With GPS, the minimum resolution is aroud 3 meters. If you take consecutive GPS readings and look for significant changes in a given direction, it will give you a rough estimate of the direction of travel, and thus a probable direction the person is facing.

这是几乎没有为具有磁罗盘，好其中没有对市场的黑莓（黑莓？）目前有。

This is not nearly as good as having a magnetic compass, which none of the Blackberries (Blackberrys?) on the market currently have.

一些GPS系统具有以公知的取向放置在彼此旁边两个GPS接收机。他们可以计算单元是基于比较两个GPS读数面向的方向。他们称之为GPS罗盘。此外，<一个href=\"http://www.hemispheregps.com/Products/$p$pcisionProducts/$p$pcisionProducts/V100Series/tabid/379/Default.aspx\"相对=nofollow>这些系统的太笨重在这一点上被包含在一个电话

Some GPS systems have two GPS receivers placed beside each other in a known orientation. They can calculate which direction the unit is facing based on comparing two GPS readings. They call it a GPS compass. Also, these systems are too bulky to be included in a phone at this point.

您可以使用黑莓API 找到GPS信息包括课程取得了良好的标题（getCourse方法）。它会给你一个罗盘读数与0.00是北。

You can use the Blackberry API to find the GPS information including the course made good heading (getCourse method). It will give you a compass reading with 0.00 being North.

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