The interesting part is how I tell the browser about the coordinates. Figure 1 shows a class diagram for this simple GPS-tracker application.

令人感兴趣的是我将如何告诉浏览器这个坐标。

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The concept is based on a tracker object that exists in the dialogs parent and a helper class from which the dialog is dual-derived.

这个概念是基于一个跟踪对象，在对话框的父母和一个助手类从该对话框是双源存在。

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The helper class automates the interaction between the dialog and its tracker, and the tracker allows the parent to manage the dialog.

帮助类自动化之间的对话与互动的跟踪，并允许父跟踪管理对话框。

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