【摘要】 为使图形应用程序在具备高质量图形绘制能力的同时拥有在多种系统平台上运行的跨平台能力,提出并实现了一个在多种平台下接口统一、绘制快速、绘制效果优良的高质量二维图形库,以用于支撑当前跨平台图形应用系统的开发。首先根据电子地图绘制的具体需要,在分析多种现有图形库的优点与不足之后,从图形库外部接口设计到内部实现原理介绍如何构建一个具备跨平台能力的高质量二维图形库,最后通过与GDI、GDI+对比的方式对图形库绘制效果与效率进行验证。更多还原

【Abstract】 To support the applications be able to draw high quality outputs and cross-platform enabled,a graphics library which has unified interface on multi-platforms,fast rendering ability and better rendering effects is proposed and implemented,so the cross-platform graphics applications are developed much easier.Firstly,the advantages and disadvantages of several existing graphics libraries are stu-died.Then the theory and design to implement a device independent high quality 2D graphic library is explained based on the requirements of digital map drawing system.Finally,in contrast with GDI and GDI+,the improvement in rendering effects and speed of the library are tested.更多还原