Qwt 替代方案
有没有类似于 Qwt 但更灵活的库？灵活的含义是使用现有的函数和参数，而不需要像 Qwt 这样的基本类进行继承。
我更喜欢 Qt，但如果可以轻松地以 Qt 形式实现，纯 C++ 也会很好。
也许一些 Qwt 替代方案仍处于开发初期，但有潜力发挥作用。
Is there any lib similar to Qwt but that is more flexible? Flexible in the meaning of using existing functions and parameters without need to do inheritance of basic classes like Qwt.
I would prefer Qt, but also plain c++ will be good if it can be easily implemented in Qt form.
Maybe some Qwt alternative that is still in the beginning of development, but has potential to be good.
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有一个很好的替代方案：QCustomPlot (http://www.qcustomplot.com/)
恕我直言，甚至比 Qwt 还要好。
There is an excellent alternative: QCustomPlot (http://www.qcustomplot.com/)
IMHO even better than Qwt.
不确定这是否满足您的需求（以及您是否仍在搜索；）），但也许您会发现这很有趣：
http://www.workslikeclockwork.com/index.php/components/ qt-绘图小部件/
Sure 具有灵活性，因为它正处于开发初期（而且并不打算像 Qwt 那样大）。代码相对较小且文档清晰，所以让我听听您的想法。
Not sure whether this meets your needs (and whether you're still searching ;)), but maybe you'll find this interesting:
http://www.workslikeclockwork.com/index.php/components/qt-plotting-widget/
Sure has the flexibility in the sense that it's at the beginning of development (and doesn't aim to be as big as Qwt anyway). Code is relatively small and cleanly documented, so let me hear what you think.
最流行的绘图库：
这些库之间的选择取决于您的具体目标和项目要求。如果您正在从事非开源项目并且需要合并不受许可限制的绘图，我建议您使用Qwt（我个人的偏好）或PLplot。这些库可在 LGPL 许可下使用，确保非开源项目具有更大的灵活性。另一方面，QtCharts 和 QCustomPlot 只能在 GPL 许可证下访问，如果您希望维护免费的解决方案。
The most popular plot libraries:
The choice between these libraries depends on your specific goals and project requirements. If you're working on non-open-source projects and need to incorporate plots without licensing restrictions, I recommend Qwt (my personal preference) or PLplot. These libraries are available under the LGPL license, ensuring more flexibility for non-open-source projects. On the other hand, QtCharts and QCustomPlot are only accessible under the GPL license, if you wish to maintain a cost-free solution.