摘要
空天地一体化态势表达引擎具有数据类型多、空间尺度和距离变化大等特点,这些特点对视点控制方法提出了新的要求。针对这些特点,设计了一种目标相关、分类分级的视点控制方法,实现了各类目标、地面地形的快速自然浏览;同时为了增加浏览的动态效果,使用了带惯性的视点控制方法;采用直线插值和球面插值技术,实现了空天地整个态势场景的跨尺度无缝切换。实验表明:采用该视点控制方法构建的空天地一体化态势表达引擎能够很好地满足用户交互操作的需求。
Space-air-ground situation expression engine is characterized of plenty of data types, spatial scale and distance varying to a great extent etc., these features proposed new requirements for viewpoint control method. For these characteristics, a related to target, classification and grading viewpoint control method is designed to browse various goals,natural ground terrain quickly; in order to increase the dynamic browsing effect, the inertial viewpoint control methods is used;linear and spherical interpolation techniques are adopted to achieve the seamless viewpoint switching in space situation scene.Experiments show that, the space-air-ground situation expression engine using this viewpoint control method can well meet the needs of user interaction.
出处
《计算机应用》
CSCD
北大核心
2014年第A02期264-268,共5页
journal of Computer Applications
关键词
空天地一体化
态势表达
目标相关
分类分级
视点控制
视点切换
space-air-ground
situation expression
objective related
classification and grading
viewpoint control
viewpoint switching
