QWT基础教程介绍

学习QWT已经有一段时间了，可以说是已经有了一定的理解，所以打算做个系列教程用来给将来的自己做参考，希望也能对正在使用QWT的朋友有一点点帮助。

QWT是一个QT的第三方控件库，主要用于数据可视化，关于QWT的安装，可以去看我的另一篇文章：安装QWT。

下面是QT源码包中README的内容

The Qwt Widget Library
----------------------

      Qwt is an extension to the libraries of the Qt Project.  

      The Qwt library contains widgets and components which are 
      primarily useful for technical and scientifical purposes.
      It includes a 2-D plotting widget, different kinds of sliders, 
      and much more.

      Qwt is hosted at http://qwt.sf.net

Installation
------------
      
      Read INSTALL how to build and install Qwt.

Copyright
---------

    Qwt Widget Library 
    Copyright (C) 1997   Josef Wilgen
    Copyright (C) 2002   Uwe Rathmann

    Qwt is published under the Qwt License, Version 1.0.
    You should have received a copy of this licence in the file
    COPYING.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

里面简要地介绍了QWT的用途，以及一些版权信息。

本次教程将会以源码包中的examples为素材进行讲解。我们本着先易后难的基本学习法则，先介绍简单的例子如simpleplot等，通过简单的例子来掌握基本绘图方法，然后再逐渐深入讲解一些难一点的例子如oscilloscope等，通过模仿这些高级案例来掌握如何实现一些高级功能。好了，话不多说，开始我们的旅程。