/** @mainpage Marble
Marble is an application that displays a view of the earth. It is
both a valuable application in its own right, but also an example
program that shows how you can use the Marble widgets in your own
We have designed Marble so that you can use its components easily to
enhance your application with geo services. This manual enumerates the
components and describes how to use them in your own application.
The Marble application makes use of the following classes and widgets:
1. MarbleWidget, the main widget in any application using the Marble
framework. This widget displays a view of the earth or any other
globe, depending on which dataset is used. The user can navigate
the globe using either a control widget, e.g. the MarbleNavigator,
or the mouse.
2. MarbleModel, the data storage class that holds the data that is
visualized in the MarbleWidget. The MarbleModel is created internally
and can be accessed using the model() method.
This data model contains several separate datatypes, among them:
<b>tiles</b> which provide the background map, <b>vectors</b> which
provide things like country borders and coastlines and <b>placemarks</b>
which can show points of interest, such as cities, mountain tops or the poles.
These two classes provide the core of the classes that comprise the
Marble framework. You can use only them and get a very capable
In addition to this, there is also a simple control widget called the
MarbleNavigator that controls panning and zooming. This control widget
can be used in simpler application where theming, searching and other
advanced controls are not needed.
To help you get started, we provide small example programs which you can
find in the examples/cpp directory of the sources. They are also available
online at <a href="http://techbase.kde.org/Projects/Marble/MarbleCPlusPlus">KDE TechBase</a>.
@see <a href="http://techbase.kde.org/Projects/Marble/MarbleCPlusPlus">KDE TechBase: MarbleCPlusPlus</a>