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[目的 /意义]技术主题图是进行技术布局分析、技术路线跟踪的有效方法之一。为提高技术主题图绘制效率,增强技术主题图表现形式,丰富科技情报分析人员选择技术主题图绘制工具范围。[方法 /过程]提出一种简易的技术主题图绘制方法,融合Fruchterman-Reingold layout和Vos Mapping算法进行主题词的平面布局,建立平面像素点密度函数,依据密度值进行色彩渲染,得到技术主题图。[结果 /结论]基于该方法设计软件工具,分为数据处理模块、节点布局模块、图形渲染模块、人机交互模块。将该方法应用于3D打印中国论文数据进行实证应用,结果表明该方法简单有效。
[Purpose / Significance] The technical subject map is one of the effective methods for technical layout analysis and technical route tracking. In order to improve the efficiency of technical subject drawing, enhance the representation of technical subject drawings and enrich the range of technical subject drawing tools for scientific and technological intelligence analysts. [Method / Process] This paper presents a simple technique of thematic map drawing method, which combines Fruchterman-Reingold layout and Vos Mapping algorithm to carry out the planar layout of thematic words and builds the density function of the plane pixel, and renders the color map according to the density value to obtain the technical subject map . [Result / Conclusion] Based on this method, software tools are designed and divided into data processing module, node layout module, graphics rendering module and human-computer interaction module. The method is applied to the 3D printing of Chinese paper data for empirical application, the results show that the method is simple and effective.