CAJ | 학술논문

在直接体绘制中，传输函数定义了从数据属性到光学属性的映射关系，直接决定了绘制的效果，是体绘制研究的关键技术之一。为了使体绘制技术在气象领域真正发挥作用，必须结合气象规律研究和设计面向气象数据体绘制的传输函数。研究台风数据的特点以及针对台风数据体绘制的传输函数的设计流程，在数据值梯度直方图基础上结合光照参数设计了台风标量场数据的传输函数，采用台风的温度、湿度以及云量等数据进行体绘制，更好地显示了台风的内部结构，对于认识台风起到了促进作用。
재직접체회제중，전수함수정의료종수거속성도광학속성적영사관계，직접결정료회제적효과，시체회제연구적관건기술지일。위료사체회제기술재기상영역진정발휘작용，필수결합기상규률연구화설계면향기상수거체회제적전수함수。연구태풍수거적특점이급침대태풍수거체회제적전수함수적설계류정，재수거치제도직방도기출상결합광조삼수설계료태풍표량장수거적전수함수，채용태풍적온도、습도이급운량등수거진행체회제，경호지현시료태풍적내부결구，대우인식태풍기도료촉진작용。
In direct volume rendering,transfer function defines the mapping relation from volume data property to optical property,this di-rectly determines the effect of rendering,and is one of key technologies in volume rendering research.In order to really play the role of vol-ume rendering technology in meteorological area,it is necessary to study and design the transfer function for meteorological data volume ren-dering in combination with the meteorological laws.In this paper,we study the feature of typhoon data and the design the flow of transfer function in light of typhoon data volume rendering.Based on data value-gradient histogram,we design the transfer function of typhoon scalar field data by combining the optical parameters,and use typhoon data including temperature,humidity and cloudiness to carry out volume ren-dering,give a better display of the internal structure of typhoon,this has promoted to know typhoon better.