[ 源代码： qwt ]
软件包：libqwt-headers（6.1.4-1）
Qt widgets library for technical applications (header files)
The Qwt library contains Qt GUI Components and utility classes which are primarily useful for programs with a technical background. Most of these widgets are used to control or display values, arrays, or ranges of type double.
This package contains the header files for both Qt4 and Qt5 versions