一个不错的qt第三方图形图
KD Chart is the most powerful Qt component of its kind! Besides having all the standard features, it enables the developer to design and manage a large number of axes and provides sophisticated customization.
KD Chart utilizes the Qt Model-View programming model and allows for re-use of existing data models to create charts. KD Chart is a complete implementation of the ODF (OpenDocument) Chart specification. It now includes Stock Charts, Box & Whisker Charts and the KD Gantt module for implementing ODF Gantt charts into applications.
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