基于网格的叠加标签区分显示方法  

The Differentiated Display Method of Superimposed labels Based on Grid

作　　者：刘辰炜 张臻[1] LIU Chenwei;ZHANG Zhen(The 28th Research Institute of China Electronics Technology Group Corporation,Nanjing 210007,China)

机构地区：[1]中国电子科技集团公司第二十八研究所,江苏南京210007

出　　处：《电子质量》2023年第8期93-96,共4页Electronics Quality

摘　　要：在民用地理信息系统软件中,往往会使用标签来标识飞机、船舶等动目标,通过标签显示其速度、航向和位置等信息,但批量的标签显示存在着叠加的现象,会影响显示效果和交互使用。针对此问题,提供了一种基于网格的叠加标签区分显示方法。基于设定的二维空间网格,将标签与对应的网格进行关联,通过相对位置的计算得出需要区分显示的叠加标签,将其淡化处理。实验结果表明:当飞机标签存在叠加现象时,利用此方法进行处理能够显著提高显示效果并且不会丢失显示任何一架飞机的标签。In civil GIS software,labels are often used to identify airplanes,ships and other moving targets and display their speed,course,location and other information.There is phenomenon of superposition in the display of batch labels,which affects the display effect and interactive use.To solve this problem,a method of displaying superimposed labels differentially based on spatial grid is proposed.Based on the set two-dimensional space grid,the label is associated with the corresponding grid,and the superimposed label that needs to be distinguished is obtained by calculating the relative position,then the it is diluted.The experimental results show that when the labels are superimposed,this method can significantly improve the display effect and there are no any label displaying of airplane will be lost.

关 键 词：地理信息系统 空间网格 动目标 标签叠加 

分 类 号：P208.2[天文地球—地图制图学与地理信息工程]